New files

.gitignore

@@ -174,3 +174,8 @@ cython_debug/
 # PyPI configuration file
 .pypirc
 
+# Custom added
+*.db
+chromdb/*
+model/*
+models/*

coordinator_backend/backend.py

@@ -0,0 +1,432 @@
+import asyncio
+import logging
+import os
+import sqlite3
+from contextlib import asynccontextmanager
+from typing import Any, Dict, List, Optional
+
+import aiohttp
+import uvicorn
+from fastapi import FastAPI, File, Form, HTTPException, UploadFile
+from fastapi.responses import JSONResponse
+from llama_cpp import Llama
+from pydantic import BaseModel, Field
+
+# ------------------------------------------------------------
+# Configuration (env overrides)
+# ------------------------------------------------------------
+MODEL_PATH = os.getenv("MODEL_PATH", "models/gemma-3-1b-it-Q4_K_M.gguf")
+N_CTX = int(os.getenv("N_CTX", "2048"))
+N_THREADS = int(os.getenv("N_THREADS", "4"))
+ORANGE_PI_PORT = int(os.getenv("ORANGE_PI_PORT", "8080"))  # default port
+UPLOAD_TIMEOUT = float(os.getenv("UPLOAD_TIMEOUT", "300.0"))  # for uploads
+REQUEST_TIMEOUT = float(os.getenv("REQUEST_TIMEOUT", "30.0"))  # for other requests
+DB_PATH = os.getenv("DB_PATH", "orangepi.db")
+
+SYNTHESIS_TEMP = float(os.getenv("SYNTHESIS_TEMP", "0.5"))
+SYNTHESIS_MAX_TOKENS = int(os.getenv("SYNTHESIS_MAX_TOKENS", "512"))
+
+# ------------------------------------------------------------
+# Logging
+# ------------------------------------------------------------
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger("orchestrator")
+
+
+# ------------------------------------------------------------
+# Database helpers
+# ------------------------------------------------------------
+def init_db():
+    conn = sqlite3.connect(DB_PATH)
+    c = conn.cursor()
+    c.execute("""
+        CREATE TABLE IF NOT EXISTS orangepi_devices (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            ip TEXT NOT NULL UNIQUE,
+            port INTEGER DEFAULT 8080,
+            enabled INTEGER DEFAULT 1,
+            name TEXT
+        )
+    """)
+    conn.commit()
+    conn.close()
+
+
+def get_all_enabled_ips() -> List[Dict[str, Any]]:
+    conn = sqlite3.connect(DB_PATH)
+    c = conn.cursor()
+    c.execute("SELECT ip, port FROM orangepi_devices WHERE enabled = 1")
+    rows = c.fetchall()
+    conn.close()
+    return [{"ip": row[0], "port": row[1]} for row in rows]
+
+
+def get_device(ip: str) -> Optional[Dict[str, Any]]:
+    conn = sqlite3.connect(DB_PATH)
+    c = conn.cursor()
+    c.execute(
+        "SELECT ip, port FROM orangepi_devices WHERE ip = ? AND enabled = 1", (ip,)
+    )
+    row = c.fetchone()
+    conn.close()
+    if row:
+        return {"ip": row[0], "port": row[1]}
+    return None
+
+
+def add_or_update_device(ip: str, port: int = None, name: str = None):
+    if port is None:
+        port = ORANGE_PI_PORT
+    conn = sqlite3.connect(DB_PATH)
+    c = conn.cursor()
+    c.execute(
+        """
+        INSERT INTO orangepi_devices (ip, port, name)
+        VALUES (?, ?, ?)
+        ON CONFLICT(ip) DO UPDATE SET
+            port = excluded.port,
+            name = excluded.name,
+            enabled = 1
+    """,
+        (ip, port, name),
+    )
+    conn.commit()
+    conn.close()
+
+
+def remove_device(ip: str):
+    conn = sqlite3.connect(DB_PATH)
+    c = conn.cursor()
+    c.execute("UPDATE orangepi_devices SET enabled = 0 WHERE ip = ?", (ip,))
+    conn.commit()
+    conn.close()
+
+
+# ------------------------------------------------------------
+# Global model
+# ------------------------------------------------------------
+llm_model = None
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    global llm_model
+    init_db()
+    logger.info(f"Loading GGUF model from {MODEL_PATH} ...")
+    try:
+        llm_model = Llama(
+            model_path=MODEL_PATH,
+            n_ctx=N_CTX,
+            n_threads=N_THREADS,
+            verbose=False,
+        )
+        logger.info("Model loaded successfully.")
+    except Exception as e:
+        logger.error(f"Failed to load model: {e}")
+        raise RuntimeError("Model loading failed")
+    yield
+    del llm_model
+
+
+app = FastAPI(
+    title="OrangePi Coordinator with File Upload & Document Listing",
+    description="Orchestrate multiple Orange Pi RAG services: ask questions, upload files, list documents.",
+    version="2.0",
+    lifespan=lifespan,
+)
+
+
+# ------------------------------------------------------------
+# Request/Response Schemas
+# ------------------------------------------------------------
+class AskRequest(BaseModel):
+    question: str
+
+
+class DeviceRegister(BaseModel):
+    ip: str
+    port: int = Field(ORANGE_PI_PORT, ge=1, le=65535)
+    name: str | None = None
+
+
+class DeviceRemove(BaseModel):
+    ip: str
+
+
+class AskResponse(BaseModel):
+    final_answer: str
+    raw_responses: Dict[str, str]
+    synthesis_used: bool = True
+
+
+# ------------------------------------------------------------
+# Helper: forward requests to Orange Pi
+# ------------------------------------------------------------
+async def forward_to_orange_pi(
+    ip: str,
+    port: int,
+    path: str,
+    method: str = "GET",
+    data: Any = None,
+    files: Any = None,
+    is_upload: bool = False,
+) -> tuple[dict, int]:
+    url = f"http://{ip}:{port}{path}"
+    timeout = UPLOAD_TIMEOUT if is_upload else REQUEST_TIMEOUT
+    async with aiohttp.ClientSession() as session:
+        try:
+            if method.upper() == "GET":
+                async with session.get(url, timeout=timeout) as resp:
+                    text = await resp.text()
+                    if resp.content_type == "application/json":
+                        return await resp.json(), resp.status
+                    else:
+                        return {
+                            "error": f"Non-JSON response: {text[:200]}"
+                        }, resp.status
+            elif method.upper() == "POST":
+                if files:
+                    form_data = aiohttp.FormData()
+                    for key, file_obj in files.items():
+                        # Stream the file without reading entirely into memory
+                        # file_obj is starlette.datastructures.UploadFile
+                        # We'll read in chunks, but aiohttp can handle streaming if we pass a file-like object
+                        # However, file_obj.file is a SpooledTemporaryFile; we can pass it directly
+                        form_data.add_field(
+                            key,
+                            file_obj.file,
+                            filename=file_obj.filename,
+                            content_type=file_obj.content_type
+                            or "application/octet-stream",
+                        )
+                    async with session.post(
+                        url, data=form_data, timeout=timeout
+                    ) as resp:
+                        return await resp.json(), resp.status
+                else:
+                    async with session.post(url, json=data, timeout=timeout) as resp:
+                        return await resp.json(), resp.status
+            else:
+                return {"error": "Unsupported method"}, 405
+        except asyncio.TimeoutError:
+            logger.error(f"Timeout forwarding to {ip}:{port}{path}")
+            return {"error": "Request timeout"}, 504
+        except Exception as e:
+            logger.error(f"Error forwarding to {ip}:{port}{path}: {e}", exc_info=True)
+            return {"error": str(e)}, 500
+
+
+# ------------------------------------------------------------
+# Existing: query all Orange Pis for an answer
+# ------------------------------------------------------------
+async def query_orange_pi_answer(
+    ip: str, port: int, question: str, session: aiohttp.ClientSession
+) -> tuple[str, str | None, str | None]:
+    url = f"http://{ip}:{port}/answer"
+    payload = {"question": question}
+    try:
+        async with session.post(url, json=payload, timeout=REQUEST_TIMEOUT) as resp:
+            if resp.status == 200:
+                data = await resp.json()
+                answer = data.get("answer", "")
+                return (ip, answer, None)
+            else:
+                return (ip, None, f"HTTP {resp.status}")
+    except asyncio.TimeoutError:
+        return (ip, None, "Timeout")
+    except Exception as e:
+        return (ip, None, str(e))
+
+
+async def gather_responses(question: str) -> Dict[str, str]:
+    devices = get_all_enabled_ips()
+    if not devices:
+        return {}
+    async with aiohttp.ClientSession() as session:
+        tasks = [
+            query_orange_pi_answer(dev["ip"], dev["port"], question, session)
+            for dev in devices
+        ]
+        results = await asyncio.gather(*tasks)
+    response_map = {}
+    for ip, answer, error in results:
+        if answer is not None:
+            response_map[ip] = answer
+        else:
+            response_map[ip] = f"[ERROR: {error}]"
+    return response_map
+
+
+def synthesize_answer(original_question: str, responses: Dict[str, str]) -> str:
+    if not responses:
+        return "No responses received from any Orange Pi device."
+    responses_text = "\n".join(
+        [f"- Device {ip}: {resp}" for ip, resp in responses.items()]
+    )
+    prompt = f"""You are an aggregator that synthesizes answers from multiple sources.
+
+Original user question: question{original_question}
+
+Responses from different Orange Pi devices:
+{responses_text}
+
+Please provide a single, coherent, and concise final answer based on all the above responses.
+If there are conflicts, mention the different viewpoints. If some responses are errors, ignore them.
+Final answer:
+"""
+    output = llm_model.create_completion(
+        prompt=prompt,
+        max_tokens=SYNTHESIS_MAX_TOKENS,
+        temperature=SYNTHESIS_TEMP,
+        stop=["\n\n", "User question:", "Original user question:"],
+        echo=False,
+    )
+    return output["choices"][0]["text"].strip()
+
+
+# ------------------------------------------------------------
+# NEW: Upload a PDF to a specific Orange Pi
+# ------------------------------------------------------------
+@app.post("/devices/{device_ip}/upload")
+async def upload_to_device(device_ip: str, file: UploadFile = File(...)):
+    """
+    Upload a PDF file to a specific Orange Pi (by IP address).
+    The Orange Pi must have the RAG service running with /upload endpoint.
+    """
+    # Check if device is registered and enabled
+    device = get_device(device_ip)
+    if not device:
+        raise HTTPException(
+            status_code=404, detail=f"Device {device_ip} not registered or disabled"
+        )
+
+    result, status = await forward_to_orange_pi(
+        ip=device["ip"],
+        port=device["port"],
+        path="/upload",
+        method="POST",
+        files={"file": file},
+        is_upload=True,
+    )
+    if status != 200:
+        raise HTTPException(
+            status_code=status,
+            detail=result.get("detail", result.get("error", "Upload failed")),
+        )
+    return JSONResponse(content=result)
+
+
+@app.get("/devices/documents")
+async def list_all_documents(device_ip: Optional[str] = None):
+    """Retrieve the list of indexed documents from all registered Orange Pis."""
+    if device_ip:
+        devices = [get_device(device_ip)]
+        if not devices[0]:
+            raise HTTPException(status_code=404, detail=f"Device {device_ip} not found")
+    else:
+        devices = get_all_enabled_ips()
+        if not devices:
+            raise HTTPException(
+                status_code=404, detail="No Orange Pi devices registered"
+            )
+
+    results = {}
+    async with aiohttp.ClientSession() as session:
+        tasks = []
+        for dev in devices:
+            url = f"http://{dev['ip']}:{dev['port']}/documents"
+            tasks.append(fetch_documents(session, dev["ip"], url))
+        outcomes = await asyncio.gather(*tasks)
+        for ip, docs, error in outcomes:
+            if error:
+                results[ip] = {"error": error}
+            else:
+                # Ensure docs is a dict before calling .get()
+                if isinstance(docs, dict):
+                    results[ip] = docs.get("documents", [])
+                else:
+                    results[ip] = []
+    return {"documents_by_device": results}
+
+
+async def fetch_documents(session: aiohttp.ClientSession, ip: str, url: str):
+    try:
+        async with session.get(url, timeout=REQUEST_TIMEOUT) as resp:
+            if resp.status == 200:
+                data = await resp.json()
+                return (ip, data, None)
+            else:
+                return (ip, None, f"HTTP {resp.status}")
+    except Exception as e:
+        return (ip, None, str(e))
+
+
+# ------------------------------------------------------------
+# Existing endpoints (health, devices/register, devices/remove, devices/list, ask)
+# ------------------------------------------------------------
+@app.get("/health")
+async def health():
+    return {"status": "ok", "model_loaded": llm_model is not None}
+
+
+@app.post("/devices/register")
+async def register_device(device: DeviceRegister):
+    add_or_update_device(device.ip, device.port, device.name)
+    return {"message": f"Device {device.ip} registered/updated"}
+
+
+@app.post("/devices/remove")
+async def delete_device(device: DeviceRemove):
+    remove_device(device.ip)
+    return {"message": f"Device {device.ip} disabled"}
+
+
+@app.get("/devices/list")
+async def list_devices():
+    devices = get_all_enabled_ips()
+    return {"devices": devices}
+
+
+@app.post("/ask", response_model=AskResponse)
+async def ask_swarm(request: AskRequest):
+    if llm_model is None:
+        raise HTTPException(status_code=503, detail="Local GGUF model not loaded")
+    responses = await gather_responses(request.question)
+    if not responses:
+        raise HTTPException(
+            status_code=503,
+            detail="No Orange Pi devices available or all requests failed",
+        )
+    final_answer = synthesize_answer(request.question, responses)
+    return AskResponse(
+        final_answer=final_answer, raw_responses=responses, synthesis_used=True
+    )
+
+@app.delete("/devices/{device_ip}/documents/{doc_id}")
+async def delete_document_on_device(device_ip: str, doc_id: str):
+    """Delete a document from a specific Orange Pi."""
+    device = get_device(device_ip)
+    if not device:
+        raise HTTPException(status_code=404, detail=f"Device {device_ip} not registered")
+
+    url = f"http://{device['ip']}:{device['port']}/documents/{doc_id}"
+    async with aiohttp.ClientSession() as session:
+        try:
+            async with session.delete(url, timeout=REQUEST_TIMEOUT) as resp:
+                if resp.status == 200:
+                    result = await resp.json()
+                    return result
+                else:
+                    error_text = await resp.text()
+                    raise HTTPException(status_code=resp.status, detail=error_text)
+        except Exception as e:
+            logger.error(f"Error deleting document on {device_ip}: {e}")
+            raise HTTPException(status_code=500, detail=str(e))
+
+# ------------------------------------------------------------
+# Run
+# ------------------------------------------------------------
+if __name__ == "__main__":
+    uvicorn.run(
+        "backend:app", host="0.0.0.0", port=8000, reload=False, log_level="info"
+    )

coordinator_frontend/README.md

@@ -0,0 +1,17 @@
+# coordinator_frontend
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Learn Flutter](https://docs.flutter.dev/get-started/learn-flutter)
+- [Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Flutter learning resources](https://docs.flutter.dev/reference/learning-resources)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

coordinator_frontend/analysis_options.yaml

@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

coordinator_frontend/android/.gitignore

@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks

coordinator_frontend/android/app/build.gradle.kts

@@ -0,0 +1,44 @@
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "com.example.coordinator_frontend"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_17.toString()
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.example.coordinator_frontend"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

coordinator_frontend/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

coordinator_frontend/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,45 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="coordinator_frontend"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

coordinator_frontend/android/app/src/main/kotlin/com/example/coordinator_frontend/MainActivity.kt

@@ -0,0 +1,5 @@
+package com.example.coordinator_frontend
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity : FlutterActivity()

coordinator_frontend/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

coordinator_frontend/android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

coordinator_frontend/android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

coordinator_frontend/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

coordinator_frontend/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

coordinator_frontend/android/build.gradle.kts

@@ -0,0 +1,24 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+val newBuildDir: Directory =
+    rootProject.layout.buildDirectory
+        .dir("../../build")
+        .get()
+rootProject.layout.buildDirectory.value(newBuildDir)
+
+subprojects {
+    val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
+    project.layout.buildDirectory.value(newSubprojectBuildDir)
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register<Delete>("clean") {
+    delete(rootProject.layout.buildDirectory)
+}

coordinator_frontend/android/gradle.properties

@@ -0,0 +1,2 @@
+org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true

coordinator_frontend/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-all.zip

coordinator_frontend/android/settings.gradle.kts

@@ -0,0 +1,26 @@
+pluginManagement {
+    val flutterSdkPath =
+        run {
+            val properties = java.util.Properties()
+            file("local.properties").inputStream().use { properties.load(it) }
+            val flutterSdkPath = properties.getProperty("flutter.sdk")
+            require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" }
+            flutterSdkPath
+        }
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
+    id("com.android.application") version "8.11.1" apply false
+    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
+}
+
+include(":app")

coordinator_frontend/ios/.gitignore

@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

coordinator_frontend/ios/Flutter/AppFrameworkInfo.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+</dict>
+</plist>

coordinator_frontend/ios/Flutter/Debug.xcconfig

@@ -0,0 +1 @@
+#include "Generated.xcconfig"

coordinator_frontend/ios/Flutter/Release.xcconfig

@@ -0,0 +1 @@
+#include "Generated.xcconfig"

coordinator_frontend/ios/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,620 @@
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+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.coordinatorFrontend;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Profile;
+		};
+		331C8088294A63A400263BE5 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.coordinatorFrontend.RunnerTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
+			};
+			name = Debug;
+		};
+		331C8089294A63A400263BE5 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.coordinatorFrontend.RunnerTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
+			};
+			name = Release;
+		};
+		331C808A294A63A400263BE5 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.coordinatorFrontend.RunnerTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
+			};
+			name = Profile;
+		};
+		97C147031CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = NO;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		97C147041CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = NO;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		97C147061CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.coordinatorFrontend;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.coordinatorFrontend;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		331C8087294A63A400263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				331C8088294A63A400263BE5 /* Debug */,
+				331C8089294A63A400263BE5 /* Release */,
+				331C808A294A63A400263BE5 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

coordinator_frontend/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

coordinator_frontend/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

coordinator_frontend/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

coordinator_frontend/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1510"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C8080294A63A400263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      enableGPUValidationMode = "1"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

coordinator_frontend/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

coordinator_frontend/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

coordinator_frontend/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

coordinator_frontend/ios/Runner/AppDelegate.swift

@@ -0,0 +1,16 @@
+import Flutter
+import UIKit
+
+@main
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
+}

coordinator_frontend/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

coordinator_frontend/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

coordinator_frontend/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

coordinator_frontend/ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

coordinator_frontend/ios/Runner/Base.lproj/Main.storyboard

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

coordinator_frontend/ios/Runner/Info.plist

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>Coordinator Frontend</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>coordinator_frontend</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UIApplicationSupportsIndirectInputEvents</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

coordinator_frontend/ios/Runner/Runner-Bridging-Header.h

@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"

coordinator_frontend/ios/Runner/SceneDelegate.swift

@@ -0,0 +1,6 @@
+import Flutter
+import UIKit
+
+class SceneDelegate: FlutterSceneDelegate {
+
+}

coordinator_frontend/ios/RunnerTests/RunnerTests.swift

@@ -0,0 +1,12 @@
+import Flutter
+import UIKit
+import XCTest
+
+class RunnerTests: XCTestCase {
+
+  func testExample() {
+    // If you add code to the Runner application, consider adding tests here.
+    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+  }
+
+}

coordinator_frontend/lib/main.dart

@@ -0,0 +1,156 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'screens/devices_screen.dart';
+import 'screens/documents_screen.dart';
+import 'screens/upload_screen.dart';
+import 'screens/chat_screen.dart';
+import 'providers/app_state.dart';
+
+void main() {
+  runApp(MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return ChangeNotifierProvider(
+      create: (_) => AppState()..loadDevices(),
+      child: MaterialApp(
+        title: 'هم هوش',
+        debugShowCheckedModeBanner: false,
+        theme: ThemeData(
+          useMaterial3: true,
+          fontFamily: 'Vazirmatn', // 👈 Set the Persian font globally
+          brightness: Brightness.light,
+          primarySwatch: Colors.teal,
+          scaffoldBackgroundColor: Colors.transparent,
+          cardTheme: CardThemeData(
+            elevation: 4,
+            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
+            clipBehavior: Clip.antiAlias,
+            color: Colors.white.withOpacity(0.85),
+          ),
+          appBarTheme: const AppBarTheme(
+            backgroundColor: Colors.transparent,
+            elevation: 0,
+            centerTitle: true,
+            iconTheme: IconThemeData(color: Colors.teal),
+            titleTextStyle: TextStyle(color: Colors.teal, fontSize: 22, fontWeight: FontWeight.bold),
+          ),
+          elevatedButtonTheme: ElevatedButtonThemeData(
+            style: ElevatedButton.styleFrom(
+              elevation: 2,
+              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(30)),
+              padding: const EdgeInsets.symmetric(horizontal: 28, vertical: 14),
+              backgroundColor: const Color(0xFF8BC34A),
+              foregroundColor: Colors.white,
+            ),
+          ),
+          inputDecorationTheme: InputDecorationTheme(
+            filled: true,
+            fillColor: Colors.white,
+            border: OutlineInputBorder(borderRadius: BorderRadius.circular(30), borderSide: BorderSide.none),
+            enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(30), borderSide: BorderSide.none),
+            focusedBorder: OutlineInputBorder(
+              borderRadius: BorderRadius.circular(30),
+              borderSide: const BorderSide(color: Color(0xFF8BC34A), width: 2),
+            ),
+          ),
+        ),
+        home: MainScreen(),
+      ),
+    );
+  }
+}
+
+class MainScreen extends StatefulWidget {
+  @override
+  State<MainScreen> createState() => _MainScreenState();
+}
+
+class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateMixin {
+  int _selectedIndex = 0;
+  late AnimationController _animationController;
+  late Animation<double> _fadeAnimation;
+
+  final List<Widget> _pages = [
+    DevicesScreen(),
+    DocumentsScreen(),
+    UploadScreen(),
+    ChatScreen(),
+  ];
+
+  final List<BottomNavigationBarItem> _navItems = [
+    const BottomNavigationBarItem(icon: Icon(Icons.devices), label: 'دستگاه‌ها'),
+    const BottomNavigationBarItem(icon: Icon(Icons.folder_open), label: 'اسناد'),
+    const BottomNavigationBarItem(icon: Icon(Icons.cloud_upload), label: 'بارگذاری'),
+    const BottomNavigationBarItem(icon: Icon(Icons.chat), label: 'گفتگو'),
+  ];
+
+  @override
+  void initState() {
+    super.initState();
+    _animationController = AnimationController(vsync: this, duration: const Duration(milliseconds: 300));
+    _fadeAnimation = CurvedAnimation(parent: _animationController, curve: Curves.easeInOut);
+    _animationController.forward();
+  }
+
+  @override
+  void dispose() {
+    _animationController.dispose();
+    super.dispose();
+  }
+
+  void _onTabTapped(int index) {
+    setState(() {
+      _selectedIndex = index;
+    });
+    _animationController.reset();
+    _animationController.forward();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      extendBody: true,
+      body: Container(
+        decoration: const BoxDecoration(
+          gradient: LinearGradient(
+            begin: Alignment.topRight,
+            end: Alignment.bottomLeft,
+            colors: [Color(0xFF1B5E20), Color(0xFF43A047), Color(0xFF0288D1)],
+            stops: [0.0, 0.4, 1.0],
+          ),
+        ),
+        child: SafeArea(
+          child: FadeTransition(
+            opacity: _fadeAnimation,
+            child: _pages[_selectedIndex],
+          ),
+        ),
+      ),
+      bottomNavigationBar: ClipRRect(
+        borderRadius: const BorderRadius.vertical(top: Radius.circular(30)),
+        child: Container(
+          decoration: BoxDecoration(
+            boxShadow: [BoxShadow(color: Colors.black12, blurRadius: 10, offset: const Offset(0, -3))],
+          ),
+          child: BottomNavigationBar(
+            currentIndex: _selectedIndex,
+            onTap: _onTabTapped,
+            items: _navItems,
+            type: BottomNavigationBarType.fixed,
+            backgroundColor: Colors.white.withOpacity(0.96),
+            selectedItemColor: const Color(0xFF0288D1),
+            unselectedItemColor: Colors.grey[500],
+            showSelectedLabels: true,
+            showUnselectedLabels: true,
+            elevation: 0,
+            selectedLabelStyle: const TextStyle(fontWeight: FontWeight.bold, fontSize: 12),
+            unselectedLabelStyle: const TextStyle(fontSize: 12),
+          ),
+        ),
+      ),
+    );
+  }
+}

coordinator_frontend/lib/models/chat_response.dart

@@ -0,0 +1,13 @@
+class ChatResponse {
+  final String finalAnswer;
+  final Map<String, String> rawResponses;
+
+  ChatResponse({required this.finalAnswer, required this.rawResponses});
+
+  factory ChatResponse.fromJson(Map<String, dynamic> json) {
+    return ChatResponse(
+      finalAnswer: json['final_answer'],
+      rawResponses: Map<String, String>.from(json['raw_responses']),
+    );
+  }
+}

coordinator_frontend/lib/models/device.dart

@@ -0,0 +1,15 @@
+class Device {
+  final String ip;
+  final int port;
+
+  Device({required this.ip, required this.port});
+
+  factory Device.fromJson(Map<String, dynamic> json) {
+    return Device(
+      ip: json['ip'],
+      port: json['port'],
+    );
+  }
+
+  String get address => '$ip:$port';
+}

coordinator_frontend/lib/models/document.dart

@@ -0,0 +1,13 @@
+class DocumentInfo {
+  final String docId;
+  final int chunks;
+
+  DocumentInfo({required this.docId, required this.chunks});
+
+  factory DocumentInfo.fromJson(Map<String, dynamic> json) {
+    return DocumentInfo(
+      docId: json['doc_id'],
+      chunks: json['chunks'],
+    );
+  }
+}

coordinator_frontend/lib/models/upload_response.dart

@@ -0,0 +1,15 @@
+class UploadResponse {
+  final String message;
+  final String docId;
+  final int chunksIndexed;
+
+  UploadResponse({required this.message, required this.docId, required this.chunksIndexed});
+
+  factory UploadResponse.fromJson(Map<String, dynamic> json) {
+    return UploadResponse(
+      message: json['message'],
+      docId: json['doc_id'],
+      chunksIndexed: json['chunks_indexed'],
+    );
+  }
+}

coordinator_frontend/lib/providers/app_state.dart

@@ -0,0 +1,120 @@
+import 'dart:io';
+import 'package:flutter/material.dart';
+import '../services/api_service.dart';
+import '../models/device.dart';
+import '../models/document.dart';
+import '../models/chat_response.dart';
+
+class AppState extends ChangeNotifier {
+  final ApiService _api = ApiService();
+
+  List<Device> _devices = [];
+  Map<String, List<DocumentInfo>> _documentsByDevice = {};
+  bool _isLoading = false;
+  String? _errorMessage;
+
+  List<Device> get devices => _devices;
+  Map<String, List<DocumentInfo>> get documentsByDevice => _documentsByDevice;
+  bool get isLoading => _isLoading;
+  String? get errorMessage => _errorMessage;
+
+  // Load devices
+  Future<void> loadDevices() async {
+    _setLoading(true);
+    _errorMessage = null;
+    try {
+      _devices = await _api.getDevices();
+      notifyListeners();
+    } catch (e) {
+      _errorMessage = e.toString();
+      notifyListeners();
+    } finally {
+      _setLoading(false);
+    }
+  }
+
+  // Register a new device
+  Future<bool> registerDevice(String ip, int port) async {
+    _setLoading(true);
+    try {
+      await _api.registerDevice(ip, port);
+      await loadDevices();
+      return true;
+    } catch (e) {
+      _errorMessage = e.toString();
+      notifyListeners();
+      return false;
+    } finally {
+      _setLoading(false);
+    }
+  }
+
+  // Remove a device
+  Future<bool> removeDevice(String ip) async {
+    _setLoading(true);
+    try {
+      await _api.removeDevice(ip);
+      await loadDevices();
+      return true;
+    } catch (e) {
+      _errorMessage = e.toString();
+      notifyListeners();
+      return false;
+    } finally {
+      _setLoading(false);
+    }
+  }
+
+  // Load all documents (for all devices)
+  Future<void> loadAllDocuments() async {
+    _setLoading(true);
+    try {
+      _documentsByDevice = await _api.getAllDocuments();
+      notifyListeners();
+    } catch (e) {
+      _errorMessage = e.toString();
+      notifyListeners();
+    } finally {
+      _setLoading(false);
+    }
+  }
+
+  // Upload PDF to a specific device
+  Future<bool> uploadPdf(String deviceIp, File pdfFile) async {
+    _setLoading(true);
+    try {
+      await _api.uploadPdf(deviceIp, pdfFile);
+      await loadAllDocuments(); // refresh doc list
+      return true;
+    } catch (e) {
+      _errorMessage = e.toString();
+      notifyListeners();
+      return false;
+    } finally {
+      _setLoading(false);
+    }
+  }
+
+  // Ask a question (chat)
+  Future<ChatResponse> askQuestion(String question) async {
+    _setLoading(true);
+    try {
+      return await _api.askQuestion(question);
+    } catch (e) {
+      _errorMessage = e.toString();
+      rethrow;
+    } finally {
+      _setLoading(false);
+    }
+  }
+
+  void _setLoading(bool loading) {
+    _isLoading = loading;
+    notifyListeners();
+  }
+
+  void clearError() {
+    _errorMessage = null;
+    notifyListeners();
+  }
+}

coordinator_frontend/lib/screens/chat_screen.dart

@@ -0,0 +1,283 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/app_state.dart';
+import '../models/chat_response.dart';
+
+class ChatScreen extends StatefulWidget {
+  @override
+  State<ChatScreen> createState() => _ChatScreenState();
+}
+
+class _ChatScreenState extends State<ChatScreen> {
+  final TextEditingController _questionController = TextEditingController();
+  final ScrollController _scrollController = ScrollController();
+  final List<Map<String, String>> _messages = [];
+  bool _isAsking = false;
+
+  @override
+  void dispose() {
+    _questionController.dispose();
+    _scrollController.dispose();
+    super.dispose();
+  }
+
+  void _scrollToBottom() {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (_scrollController.hasClients) {
+        _scrollController.animateTo(
+          _scrollController.position.maxScrollExtent,
+          duration: const Duration(milliseconds: 300),
+          curve: Curves.easeOut,
+        );
+      }
+    });
+  }
+
+  void _clearChat() {
+    setState(() {
+      _messages.clear();
+    });
+  }
+
+  Future<void> _sendMessage(AppState appState) async {
+    final question = _questionController.text.trim();
+    if (question.isEmpty) return;
+
+    print('Sending question: $question');
+
+    setState(() {
+      _messages.add({'role': 'user', 'content': question});
+      _questionController.clear();
+      _isAsking = true;
+    });
+    _scrollToBottom();
+
+    try {
+      final response = await appState.askQuestion(question);
+      print('Received response: ${response.finalAnswer}');
+      if (mounted) {
+        setState(() {
+          _messages.add({'role': 'assistant', 'content': response.finalAnswer});
+          _isAsking = false;
+        });
+        _scrollToBottom();
+      }
+    } catch (e) {
+      print('Error: $e');
+      if (mounted) {
+        setState(() {
+          _messages.add({'role': 'assistant', 'content': 'خطا: ${e.toString()}'});
+          _isAsking = false;
+        });
+        _scrollToBottom();
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final appState = Provider.of<AppState>(context);
+
+    return Directionality(
+      textDirection: TextDirection.rtl,
+      child: Scaffold(
+        backgroundColor: Colors.transparent,
+        body: Column(
+          children: [
+            // Simple title (no AppBar)
+            Container(
+              padding: const EdgeInsets.symmetric(vertical: 12),
+              child: const Text(
+                '💬 گفتگو باهم هوش',
+                style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold, color: Colors.white),
+              ),
+            ),
+            const Divider(color: Colors.white30, thickness: 1),
+            // Messages list
+            Expanded(
+              child: _messages.isEmpty && !_isAsking
+                  ? _buildEmptyState()
+                  : ListView.builder(
+                      controller: _scrollController,
+                      padding: const EdgeInsets.all(16),
+                      itemCount: _messages.length + (_isAsking ? 1 : 0),
+                      itemBuilder: (context, index) {
+                        if (index == _messages.length && _isAsking) {
+                          return _buildTypingIndicator();
+                        }
+                        final message = _messages[index];
+                        return _buildMessageBubble(
+                          message['content']!,
+                          isUser: message['role'] == 'user',
+                        );
+                      },
+                    ),
+            ),
+            // Input area
+            _buildInputArea(appState),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildEmptyState() {
+    return Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Container(
+            padding: const EdgeInsets.all(20),
+            decoration: BoxDecoration(
+              color: Colors.white.withOpacity(0.2),
+              shape: BoxShape.circle,
+            ),
+            child: const Icon(Icons.question_answer, size: 80, color: Colors.white70),
+          ),
+          const SizedBox(height: 24),
+          const Text(
+            'از هم هوش هر سوالی دارید بپرسید',
+            style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500, color: Colors.white70),
+          ),
+          const SizedBox(height: 8),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildTypingIndicator() {
+    return Align(
+      alignment: Alignment.centerRight,
+      child: Container(
+        margin: const EdgeInsets.symmetric(vertical: 8),
+        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+        decoration: BoxDecoration(
+          color: Colors.white.withOpacity(0.9),
+          borderRadius: BorderRadius.circular(24),
+        ),
+        child: Row(
+          mainAxisSize: MainAxisSize.min,
+          children: const [
+            SizedBox(
+              width: 20,
+              height: 20,
+              child: CircularProgressIndicator(strokeWidth: 2, color: Color(0xFF0288D1)),
+            ),
+            SizedBox(width: 12),
+            Text('در حال تفکر...', style: TextStyle(color: Color(0xFF0288D1))),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildMessageBubble(String text, {required bool isUser}) {
+    return Align(
+      alignment: isUser ? Alignment.centerLeft : Alignment.centerRight,
+      child: Container(
+        margin: const EdgeInsets.only(bottom: 12),
+        constraints: BoxConstraints(
+          maxWidth: MediaQuery.of(context).size.width * 0.75,
+        ),
+        decoration: BoxDecoration(
+          gradient: isUser
+              ? const LinearGradient(
+                  colors: [Color(0xFF43A047), Color(0xFF0288D1)],
+                  begin: Alignment.topLeft,
+                  end: Alignment.bottomRight,
+                )
+              : null,
+          color: isUser ? null : Colors.white,
+          borderRadius: BorderRadius.only(
+            topLeft: const Radius.circular(20),
+            topRight: const Radius.circular(20),
+            bottomLeft: isUser ? const Radius.circular(8) : const Radius.circular(20),
+            bottomRight: isUser ? const Radius.circular(20) : const Radius.circular(8),
+          ),
+          boxShadow: [
+            BoxShadow(
+              color: Colors.black12,
+              blurRadius: 4,
+              offset: const Offset(0, 2),
+            ),
+          ],
+        ),
+        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+        child: Text(
+          text,
+          style: TextStyle(
+            color: isUser ? Colors.white : Colors.black87,
+            fontSize: 15,
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildInputArea(AppState appState) {
+    return Container(
+      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(32),
+        boxShadow: [
+          BoxShadow(color: Colors.black12, blurRadius: 10, offset: const Offset(0, -2)),
+        ],
+      ),
+      child: ClipRRect(
+        borderRadius: BorderRadius.circular(32),
+        child: Row(
+          crossAxisAlignment: CrossAxisAlignment.end,
+          children: [
+            Expanded(
+              child: TextField(
+                controller: _questionController,
+                style: const TextStyle(color: Colors.black87, fontSize: 16),
+                maxLines: 5,
+                minLines: 1,
+                textDirection: TextDirection.rtl,
+                decoration: InputDecoration(
+                  hintText: 'سوال خود را بنویسید...',
+                  hintStyle: TextStyle(color: Colors.grey[500]),
+                  filled: true,
+                  fillColor: Colors.white,
+                  border: InputBorder.none,
+                  focusedBorder: InputBorder.none,
+                  enabledBorder: InputBorder.none,
+                  contentPadding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
+                ),
+                onSubmitted: (_) => _sendMessage(appState),
+                onChanged: (_) => setState(() {}), // rebuild when text changes
+              ),
+            ),
+            const SizedBox(width: 12),
+            // Reactive button: enabled only when text is not empty and not already asking
+            ValueListenableBuilder<TextEditingValue>(
+              valueListenable: _questionController,
+              builder: (context, value, child) {
+                final isEnabled = value.text.trim().isNotEmpty && !_isAsking;
+                return ElevatedButton(
+                  onPressed: isEnabled
+                      ? () {
+                          print('Send button pressed');
+                          _sendMessage(appState);
+                        }
+                      : null,
+                  style: ElevatedButton.styleFrom(
+                    shape: const CircleBorder(),
+                    padding: const EdgeInsets.all(16),
+                    backgroundColor: const Color(0xFF0288D1),
+                    disabledBackgroundColor: Colors.grey,
+                  ),
+                  child: _isAsking
+                      ? const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2, color: Colors.white))
+                      : const Icon(Icons.send_rounded, color: Colors.white, size: 24),
+                );
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

coordinator_frontend/lib/screens/devices_screen.dart

@@ -0,0 +1,180 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/app_state.dart';
+import '../models/device.dart';
+import '../widgets/animated_button.dart';
+import '../widgets/device_card.dart';
+
+class DevicesScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    final appState = Provider.of<AppState>(context);
+    final devices = appState.devices;
+    final isLoading = appState.isLoading;
+    final error = appState.errorMessage;
+
+    return Directionality(
+      textDirection: TextDirection.rtl,
+      child: Scaffold(
+        backgroundColor: Colors.transparent,
+        body: isLoading
+            ? const Center(child: CircularProgressIndicator(color: Colors.white))
+            : error != null
+                ? Center(
+                    child: SingleChildScrollView(
+                      child: Column(
+                        mainAxisAlignment: MainAxisAlignment.center,
+                        children: [
+                          Container(
+                            padding: const EdgeInsets.all(20),
+                            decoration: BoxDecoration(
+                              color: Colors.white.withOpacity(0.2),
+                              shape: BoxShape.circle,
+                            ),
+                            child: Icon(Icons.error_outline, size: 80, color: Colors.red[300]),
+                          ),
+                          const SizedBox(height: 24),
+                          const Text(
+                            'خطا در دریافت دستگاه‌ها',
+                            style: TextStyle(color: Colors.white70, fontSize: 18, fontWeight: FontWeight.w500),
+                          ),
+                          const SizedBox(height: 12),
+                          Text(
+                            error,
+                            style: const TextStyle(color: Colors.white54, fontSize: 14),
+                            textAlign: TextAlign.center,
+                          ),
+                          const SizedBox(height: 32),
+                          AnimatedButton(
+                            width: 200,
+                            height: 56,
+                            onPressed: () => appState.loadDevices(),
+                            child: Row(
+                              mainAxisSize: MainAxisSize.min,
+                              children: const [
+                                Icon(Icons.refresh, color: Colors.white, size: 20),
+                                SizedBox(width: 8),
+                                Text('تلاش مجدد', style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 16)),
+                              ],
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  )
+                : devices.isEmpty
+                    ? const Center(
+                        child: Column(
+                          mainAxisAlignment: MainAxisAlignment.center,
+                          children: [
+                            Icon(Icons.devices_other, size: 80, color: Colors.white54),
+                            SizedBox(height: 16),
+                            Text('هیچ دستگاه ثبت‌شده‌ای وجود ندارد', style: TextStyle(color: Colors.white70, fontSize: 18)),
+                            SizedBox(height: 8),
+                            Text('برای افزودن، دکمه + را بزنید', style: TextStyle(color: Colors.white54)),
+                          ],
+                        ),
+                      )
+                    : ListView.builder(
+                        padding: const EdgeInsets.all(20),
+                        itemCount: devices.length,
+                        itemBuilder: (context, index) => DeviceCard(
+                          device: devices[index],
+                          onDelete: () => _confirmDelete(context, devices[index].ip, appState),
+                        ),
+                      ),
+        floatingActionButton: FloatingActionButton.extended(
+          onPressed: () => _showAddDeviceDialog(context),
+          icon: const Icon(Icons.add, color: Colors.white),
+          label: const Text('افزودن دستگاه', style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold)),
+          backgroundColor: const Color(0xFF00B4DB),
+          elevation: 6,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(30)),
+        ),
+        floatingActionButtonLocation: FloatingActionButtonLocation.endFloat,
+      ),
+    );
+  }
+
+  void _showAddDeviceDialog(BuildContext context) {
+    final ipController = TextEditingController();
+    final portController = TextEditingController(text: '8080');
+    showDialog(
+      context: context,
+      builder: (_) => Dialog(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(32)),
+        child: Container(
+          padding: const EdgeInsets.all(24),
+          decoration: BoxDecoration(
+            gradient: const LinearGradient(colors: [Color(0xFFf5f7fa), Color(0xFFc3cfe2)]),
+            borderRadius: BorderRadius.circular(32),
+          ),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              const Text('➕ افزودن Orange Pi جدید', style: TextStyle(fontSize: 22, fontWeight: FontWeight.bold)),
+              const SizedBox(height: 24),
+              TextField(
+                controller: ipController,
+                decoration: const InputDecoration(labelText: 'آدرس IP', prefixIcon: Icon(Icons.dns)),
+                autofocus: true,
+                textDirection: TextDirection.ltr,
+              ),
+              const SizedBox(height: 16),
+              TextField(
+                controller: portController,
+                decoration: const InputDecoration(labelText: 'پورت', prefixIcon: Icon(Icons.settings_ethernet)),
+                keyboardType: TextInputType.number,
+                textDirection: TextDirection.ltr,
+              ),
+              const SizedBox(height: 24),
+              Row(
+                mainAxisAlignment: MainAxisAlignment.end,
+                children: [
+                  TextButton(onPressed: () => Navigator.pop(context), child: const Text('انصراف', style: TextStyle(color: Colors.grey))),
+                  const SizedBox(width: 12),
+                  AnimatedButton(
+                    onPressed: () async {
+                      final ip = ipController.text.trim();
+                      final port = int.tryParse(portController.text.trim()) ?? 8080;
+                      if (ip.isNotEmpty) {
+                        final success = await Provider.of<AppState>(context, listen: false).registerDevice(ip, port);
+                        if (context.mounted) Navigator.pop(context);
+                        if (!success && context.mounted) {
+                          ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('ثبت‌نام ناموفق بود')));
+                        }
+                      }
+                    },
+                    child: const Text('ثبت', style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold)),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  void _confirmDelete(BuildContext context, String ip, AppState appState) {
+    showDialog(
+      context: context,
+      builder: (_) => AlertDialog(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(28)),
+        title: const Text('حذف دستگاه', style: TextStyle(fontWeight: FontWeight.bold)),
+        content: Text('آیا $ip را برای همیشه حذف می‌کنید؟'),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(context), child: const Text('انصراف', style: TextStyle(color: Colors.grey))),
+          AnimatedButton(
+            gradient: const LinearGradient(colors: [Color(0xFFE53935), Color(0xFFB71C1C)]),
+            onPressed: () async {
+              await appState.removeDevice(ip);
+              if (context.mounted) Navigator.pop(context);
+            },
+            child: const Text('حذف', style: TextStyle(color: Colors.white)),
+          ),
+        ],
+      ),
+    );
+  }
+}

coordinator_frontend/lib/screens/documents_screen.dart

@@ -0,0 +1,94 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/app_state.dart';
+import '../widgets/document_card.dart';
+
+class DocumentsScreen extends StatefulWidget {
+  @override
+  State<DocumentsScreen> createState() => _DocumentsScreenState();
+}
+
+class _DocumentsScreenState extends State<DocumentsScreen> {
+  String? _selectedDeviceIp;
+
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      Provider.of<AppState>(context, listen: false).loadAllDocuments();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final appState = Provider.of<AppState>(context);
+    final allDocs = appState.documentsByDevice;
+
+    final deviceIps = allDocs.keys.toList();
+    final selectedIp =
+        _selectedDeviceIp ?? (deviceIps.isNotEmpty ? deviceIps.first : null);
+    if (_selectedDeviceIp == null && selectedIp != null)
+      _selectedDeviceIp = selectedIp;
+
+    final documentsForSelected =
+        (selectedIp != null && allDocs.containsKey(selectedIp))
+        ? allDocs[selectedIp]!
+        : <dynamic>[];
+
+    return Directionality(
+      textDirection: TextDirection.rtl,
+      child: Scaffold(
+        backgroundColor: Colors.transparent,
+        body: Column(
+          children: [
+            if (deviceIps.isNotEmpty)
+              Padding(
+                padding: const EdgeInsets.all(16),
+                child: DropdownButtonFormField<String>(
+                  value: selectedIp,
+                  decoration: const InputDecoration(
+                    labelText: 'انتخاب Orange Pi',
+                    border: OutlineInputBorder(),
+                  ),
+                  items: deviceIps
+                      .map((ip) => DropdownMenuItem(value: ip, child: Text(ip)))
+                      .toList(),
+                  onChanged: (newIp) =>
+                      setState(() => _selectedDeviceIp = newIp),
+                ),
+              ),
+            Expanded(
+              child: Stack(
+                children: [
+                  if (appState.isLoading)
+                    const Center(child: CircularProgressIndicator())
+                  else if (documentsForSelected.isEmpty)
+                    const Center(
+                      child: Text('هیچ سندی برای این دستگاه یافت نشد.'),
+                    )
+                  else
+                    ListView.builder(
+                      padding: const EdgeInsets.all(16),
+                      itemCount: documentsForSelected.length,
+                      itemBuilder: (ctx, idx) => DocumentCard(
+                        doc: documentsForSelected[idx],
+                        deviceIp: selectedIp!,
+                      ),
+                    ),
+                  Positioned(
+                    bottom: 16,
+                    right: 16,
+                    child: FloatingActionButton.small(
+                      onPressed: () => appState.loadAllDocuments(),
+                      child: const Icon(Icons.refresh),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

coordinator_frontend/lib/screens/upload_screen.dart

@@ -0,0 +1,206 @@
+import 'dart:io';
+import 'package:flutter/material.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:provider/provider.dart';
+import '../providers/app_state.dart';
+import '../widgets/animated_button.dart';
+
+class UploadScreen extends StatefulWidget {
+  @override
+  State<UploadScreen> createState() => _UploadScreenState();
+}
+
+class _UploadScreenState extends State<UploadScreen> {
+  String? _selectedDeviceIp;
+  File? _selectedFile;
+  bool _uploading = false;
+
+  @override
+  Widget build(BuildContext context) {
+    final appState = Provider.of<AppState>(context);
+    final devices = appState.devices;
+
+    return Directionality(
+      textDirection: TextDirection.rtl,
+      child: Scaffold(
+        backgroundColor: Colors.transparent,
+        body: SafeArea(
+          child: SingleChildScrollView(
+            padding: const EdgeInsets.all(24),
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Card(
+                  elevation: 8,
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(32),
+                  ),
+                  child: Padding(
+                    padding: const EdgeInsets.all(24),
+                    child: Column(
+                      children: [
+                        const Icon(
+                          Icons.router,
+                          size: 52,
+                          color: Color(0xFF0288D1),
+                        ),
+                        const SizedBox(height: 12),
+                        const Text(
+                          'انتخاب Orange Pi',
+                          style: TextStyle(
+                            fontWeight: FontWeight.bold,
+                            fontSize: 18,
+                          ),
+                        ),
+                        const SizedBox(height: 20),
+                        DropdownButtonFormField<String>(
+                          value: _selectedDeviceIp,
+                          hint: const Text('انتخاب دستگاه'),
+                          items: devices
+                              .map(
+                                (d) => DropdownMenuItem(
+                                  value: d.ip,
+                                  child: Text(d.ip),
+                                ),
+                              )
+                              .toList(),
+                          onChanged: (ip) =>
+                              setState(() => _selectedDeviceIp = ip),
+                          decoration: InputDecoration(
+                            border: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(30),
+                            ),
+                            filled: true,
+                            fillColor: Colors.white,
+                            prefixIcon: const Icon(Icons.computer),
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+                const SizedBox(height: 40),
+                GestureDetector(
+                  onTap: () async {
+                    final result = await FilePicker.platform.pickFiles(
+                      type: FileType.custom,
+                      allowedExtensions: ['pdf'],
+                    );
+                    if (result != null && result.files.single.path != null) {
+                      if (mounted)
+                        setState(
+                          () => _selectedFile = File(result.files.single.path!),
+                        );
+                    }
+                  },
+                  child: Container(
+                    width: double.infinity,
+                    padding: const EdgeInsets.symmetric(vertical: 20),
+                    decoration: BoxDecoration(
+                      color: Colors.white.withOpacity(0.95),
+                      borderRadius: BorderRadius.circular(28),
+                      border: Border.all(
+                        color: const Color(0xFF0288D1).withOpacity(0.5),
+                        width: 2,
+                      ),
+                      boxShadow: [
+                        BoxShadow(
+                          color: Colors.black12,
+                          blurRadius: 6,
+                          offset: const Offset(0, 3),
+                        ),
+                      ],
+                    ),
+                    child: Row(
+                      mainAxisAlignment: MainAxisAlignment.center,
+                      children: [
+                        Icon(
+                          _selectedFile == null
+                              ? Icons.picture_as_pdf
+                              : Icons.check_circle,
+                          color: _selectedFile == null
+                              ? const Color(0xFF2E7D32)
+                              : const Color(0xFF43A047),
+                        ),
+                        const SizedBox(width: 12),
+                        Text(
+                          _selectedFile == null
+                              ? 'برای انتخاب PDF ضربه بزنید'
+                              : _selectedFile!.path.split('/').last,
+                          style: TextStyle(
+                            fontSize: 16,
+                            fontWeight: _selectedFile == null
+                                ? FontWeight.normal
+                                : FontWeight.w500,
+                            color: _selectedFile == null
+                                ? Colors.grey[700]
+                                : const Color(0xFF2E7D32),
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+                const SizedBox(height: 32),
+                if (_selectedDeviceIp != null && _selectedFile != null)
+                  AnimatedButton(
+                    width: 200,
+                    height: 56,
+                    onPressed: _uploading
+                        ? null
+                        : () => _performUpload(appState),
+                    isLoading: _uploading,
+                    child: const Text(
+                      '🚀 بارگذاری',
+                      style: TextStyle(
+                        color: Colors.white,
+                        fontWeight: FontWeight.bold,
+                        fontSize: 18,
+                      ),
+                    ),
+                  )
+                else
+                  Container(
+                    width: 200,
+                    padding: const EdgeInsets.symmetric(vertical: 16),
+                    decoration: BoxDecoration(
+                      color: Colors.grey[400],
+                      borderRadius: BorderRadius.circular(40),
+                    ),
+                    child: const Center(
+                      child: Text(
+                        'انتخاب دستگاه و PDF',
+                        style: TextStyle(color: Colors.white70),
+                      ),
+                    ),
+                  ),
+                const SizedBox(height: 20),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  void _performUpload(AppState appState) async {
+    if (!mounted) return;
+    setState(() => _uploading = true);
+    final success = await appState.uploadPdf(
+      _selectedDeviceIp!,
+      _selectedFile!,
+    );
+    if (!mounted) return;
+    setState(() => _uploading = false);
+    if (success && mounted) {
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(const SnackBar(content: Text('✅ بارگذاری موفق')));
+      setState(() => _selectedFile = null);
+    } else if (mounted) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(appState.errorMessage ?? 'بارگذاری ناموفق')),
+      );
+    }
+  }
+}

coordinator_frontend/lib/services/api_service.dart

@@ -0,0 +1,159 @@
+import 'dart:io';
+import 'package:dio/dio.dart';
+import 'package:dio/io.dart';
+import '../models/device.dart';
+import '../models/document.dart';
+import '../models/chat_response.dart';
+import '../models/upload_response.dart';
+
+class ApiService {
+  static const String baseUrl =
+      'http://192.168.1.1:8000'; // CHANGE to your laptop's IP
+  final Dio _dio;
+
+  ApiService()
+    : _dio = Dio(
+        BaseOptions(
+          baseUrl: baseUrl,
+          connectTimeout: const Duration(seconds: 30),
+          receiveTimeout: const Duration(seconds: 120),
+          headers: {'Content-Type': 'application/json'},
+        ),
+      ) {
+    // Allow self-signed certificates if needed (for local dev)
+    (_dio.httpClientAdapter as IOHttpClientAdapter).onHttpClientCreate =
+        (client) {
+          client.badCertificateCallback = (cert, host, port) => true;
+          return client;
+        };
+  }
+
+  // ========== Devices ==========
+  Future<List<Device>> getDevices() async {
+    try {
+      final response = await _dio.get('/devices/list');
+      if (response.statusCode == 200) {
+        final List<dynamic> devicesJson = response.data['devices'];
+        return devicesJson.map((json) => Device.fromJson(json)).toList();
+      }
+      throw Exception('Failed to load devices');
+    } on DioException catch (e) {
+      throw Exception('Network error: ${e.message}');
+    }
+  }
+
+  Future<void> registerDevice(String ip, int port) async {
+    try {
+      await _dio.post('/devices/register', data: {'ip': ip, 'port': port});
+    } on DioException catch (e) {
+      throw Exception('Register failed: ${e.message}');
+    }
+  }
+
+  Future<void> removeDevice(String ip) async {
+    try {
+      await _dio.post('/devices/remove', data: {'ip': ip});
+    } on DioException catch (e) {
+      throw Exception('Remove failed: ${e.message}');
+    }
+  }
+
+  // ========== Documents ==========
+  Future<Map<String, List<DocumentInfo>>> getAllDocuments() async {
+    try {
+      final response = await _dio.get('/devices/documents');
+      if (response.statusCode == 200) {
+        final Map<String, dynamic> byDevice =
+            response.data['documents_by_device'];
+        final result = <String, List<DocumentInfo>>{};
+        byDevice.forEach((ip, docs) {
+          if (docs is List) {
+            result[ip] = docs.map((d) => DocumentInfo.fromJson(d)).toList();
+          } else {
+            result[ip] = [];
+          }
+        });
+        return result;
+      }
+      throw Exception('Failed to load documents');
+    } on DioException catch (e) {
+      throw Exception('Network error: ${e.message}');
+    }
+  }
+
+  Future<Map<String, List<DocumentInfo>>> getDocumentsForDevice(
+    String ip,
+  ) async {
+    try {
+      final response = await _dio.get(
+        '/devices/documents',
+        queryParameters: {'device_ip': ip},
+      );
+      if (response.statusCode == 200) {
+        final Map<String, dynamic> byDevice =
+            response.data['documents_by_device'];
+        final result = <String, List<DocumentInfo>>{};
+        byDevice.forEach((ip, docs) {
+          if (docs is List) {
+            result[ip] = docs.map((d) => DocumentInfo.fromJson(d)).toList();
+          }
+        });
+        return result;
+      }
+      throw Exception('Failed to load documents for device');
+    } on DioException catch (e) {
+      throw Exception('Network error: ${e.message}');
+    }
+  }
+
+  // ========== Upload ==========
+  Future<UploadResponse> uploadPdf(String deviceIp, File pdfFile) async {
+    try {
+      final formData = FormData.fromMap({
+        'file': await MultipartFile.fromFile(
+          pdfFile.path,
+          filename: pdfFile.path.split('/').last,
+        ),
+      });
+      final response = await _dio.post(
+        '/devices/$deviceIp/upload',
+        data: formData,
+      );
+      if (response.statusCode == 200) {
+        return UploadResponse.fromJson(response.data);
+      }
+      throw Exception('Upload failed with status ${response.statusCode}');
+    } on DioException catch (e) {
+      throw Exception('Upload error: ${e.message}');
+    }
+  }
+
+  // ========== Chat ==========
+  Future<ChatResponse> askQuestion(String question) async {
+    try {
+      final response = await _dio.post(
+        '/ask',
+        data: {'question': question},
+        options: Options(
+          sendTimeout: const Duration(seconds: 120),
+          receiveTimeout: const Duration(seconds: 120),
+        ),
+      );
+      if (response.statusCode == 200) {
+        return ChatResponse.fromJson(response.data);
+      }
+      throw Exception('Chat request failed');
+    } on DioException catch (e) {
+      throw Exception('Network error: ${e.message}');
+    }
+  }
+
+  // In lib/services/api_service.dart
+  Future<void> deleteDocument(String deviceIp, String docId) async {
+    try {
+      await _dio.delete('/devices/$deviceIp/documents/$docId');
+    } on DioException catch (e) {
+      throw Exception('Delete failed: ${e.message}');
+    }
+  }
+}

coordinator_frontend/lib/widgets/animated_button.dart

@@ -0,0 +1,82 @@
+import 'package:flutter/material.dart';
+
+class AnimatedButton extends StatefulWidget {
+  final VoidCallback? onPressed;
+  final Widget child;
+  final bool isLoading;
+  final double? width;
+  final double? height;
+  final Gradient? gradient;
+
+  const AnimatedButton({
+    this.onPressed,
+    required this.child,
+    this.isLoading = false,
+    this.width,
+    this.height,
+    this.gradient,
+    super.key,
+  });
+
+  @override
+  State<AnimatedButton> createState() => _AnimatedButtonState();
+}
+
+class _AnimatedButtonState extends State<AnimatedButton> with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+  late Animation<double> _scaleAnimation;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(vsync: this, duration: const Duration(milliseconds: 100));
+    _scaleAnimation = Tween<double>(begin: 1.0, end: 0.95).animate(_controller);
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  void _handleTap() {
+    if (widget.onPressed != null && !widget.isLoading) {
+      widget.onPressed!();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final gradient = widget.gradient ?? const LinearGradient(
+      colors: [Color(0xFF2E7D32), Color(0xFF0288D1)],
+      begin: Alignment.topLeft,
+      end: Alignment.bottomRight,
+    );
+
+    return GestureDetector(
+      onTapDown: (_) => _controller.forward(),
+      onTapUp: (_) => _controller.reverse(),
+      onTapCancel: () => _controller.reverse(),
+      onTap: _handleTap,
+      child: ScaleTransition(
+        scale: _scaleAnimation,
+        child: Container(
+          width: widget.width,
+          height: widget.height,
+          decoration: BoxDecoration(
+            gradient: gradient,
+            borderRadius: BorderRadius.circular(40),
+            boxShadow: [
+              BoxShadow(color: Colors.black26, blurRadius: 4, offset: const Offset(0, 2)),
+            ],
+          ),
+          child: Center(
+            child: widget.isLoading
+                ? const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2.5, color: Colors.white))
+                : widget.child,
+          ),
+        ),
+      ),
+    );
+  }
+}

coordinator_frontend/lib/widgets/device_card.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+import '../models/device.dart';
+
+class DeviceCard extends StatelessWidget {
+  final Device device;
+  final VoidCallback onDelete;
+
+  const DeviceCard({required this.device, required this.onDelete, super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      margin: const EdgeInsets.only(bottom: 12),
+      child: ListTile(
+        leading: const Icon(Icons.computer),
+        title: Text(device.ip),
+        subtitle: Text('Port: ${device.port}'),
+        trailing: IconButton(icon: const Icon(Icons.delete, color: Colors.red), onPressed: onDelete),
+      ),
+    );
+  }
+}

coordinator_frontend/lib/widgets/document_card.dart

@@ -0,0 +1,56 @@
+import 'package:flutter/material.dart';
+import '../models/document.dart';
+import '../services/api_service.dart'; // to call the delete API
+
+class DocumentCard extends StatelessWidget {
+  final DocumentInfo doc;
+  final String deviceIp; // pass the device IP to know which Pi to delete from
+
+  const DocumentCard({required this.doc, required this.deviceIp, super.key});
+
+  Future<void> _deleteDocument(BuildContext context) async {
+    // Show confirmation dialog
+    final confirm = await showDialog<bool>(
+      context: context,
+      builder: (_) => AlertDialog(
+        title: const Text('حذف سند'),
+        content: Text('آیا از حذف سند "${doc.docId}" مطمئن هستید؟'),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(context, false), child: const Text('انصراف')),
+          TextButton(onPressed: () => Navigator.pop(context, true), child: const Text('حذف', style: TextStyle(color: Colors.red))),
+        ],
+      ),
+    );
+    if (confirm != true) return;
+
+    try {
+      final api = ApiService();
+      await api.deleteDocument(deviceIp, doc.docId);
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('سند با موفقیت حذف شد')));
+        // Refresh the documents list (call parent callback)
+        // We'll need a callback to refresh the screen
+      }
+    } catch (e) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('خطا در حذف: $e')));
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      margin: const EdgeInsets.only(bottom: 8),
+      child: ListTile(
+        leading: const Icon(Icons.description, color: Color(0xFF0288D1)),
+        title: Text(doc.docId, style: const TextStyle(fontWeight: FontWeight.w500)),
+        subtitle: Text('${doc.chunks} قطعه'),
+        trailing: IconButton(
+          icon: const Icon(Icons.delete_outline, color: Colors.redAccent),
+          onPressed: () => _deleteDocument(context),
+        ),
+      ),
+    );
+  }
+}

coordinator_frontend/linux/.gitignore

@@ -0,0 +1 @@
+flutter/ephemeral

coordinator_frontend/linux/CMakeLists.txt

@@ -0,0 +1,128 @@
+# Project-level configuration.
+cmake_minimum_required(VERSION 3.13)
+project(runner LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "coordinator_frontend")
+# The unique GTK application identifier for this application. See:
+# https://wiki.gnome.org/HowDoI/ChooseApplicationID
+set(APPLICATION_ID "com.example.coordinator_frontend")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(SET CMP0063 NEW)
+
+# Load bundled libraries from the lib/ directory relative to the binary.
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Define build configuration options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+# Application build; see runner/CMakeLists.txt.
+add_subdirectory("runner")
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)
+
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
+  install(FILES "${bundled_library}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endforeach(bundled_library)
+
+# Copy the native assets provided by the build.dart from all packages.
+set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
+install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+   COMPONENT Runtime)
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()

coordinator_frontend/linux/flutter/CMakeLists.txt

@@ -0,0 +1,88 @@
+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)

coordinator_frontend/linux/flutter/generated_plugin_registrant.cc

@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}

coordinator_frontend/linux/flutter/generated_plugin_registrant.h

@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_

coordinator_frontend/linux/flutter/generated_plugins.cmake

@@ -0,0 +1,24 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  jni
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)

coordinator_frontend/linux/runner/CMakeLists.txt

@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.13)
+project(runner LANGUAGES CXX)
+
+# Define the application target. To change its name, change BINARY_NAME in the
+# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
+# work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add preprocessor definitions for the application ID.
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Add dependency libraries. Add any application-specific dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")

coordinator_frontend/linux/runner/main.cc

@@ -0,0 +1,6 @@
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}

coordinator_frontend/linux/runner/my_application.cc

@@ -0,0 +1,148 @@
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Called when first Flutter frame received.
+static void first_frame_cb(MyApplication* self, FlView* view) {
+  gtk_widget_show(gtk_widget_get_toplevel(GTK_WIDGET(view)));
+}
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "coordinator_frontend");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "coordinator_frontend");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(
+      project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  GdkRGBA background_color;
+  // Background defaults to black, override it here if necessary, e.g. #00000000
+  // for transparent.
+  gdk_rgba_parse(&background_color, "#000000");
+  fl_view_set_background_color(view, &background_color);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  // Show the window when Flutter renders.
+  // Requires the view to be realized so we can start rendering.
+  g_signal_connect_swapped(view, "first-frame", G_CALLBACK(first_frame_cb),
+                           self);
+  gtk_widget_realize(GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application,
+                                                  gchar*** arguments,
+                                                  int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+    g_warning("Failed to register: %s", error->message);
+    *exit_status = 1;
+    return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GApplication::startup.
+static void my_application_startup(GApplication* application) {
+  // MyApplication* self = MY_APPLICATION(object);
+
+  // Perform any actions required at application startup.
+
+  G_APPLICATION_CLASS(my_application_parent_class)->startup(application);
+}
+
+// Implements GApplication::shutdown.
+static void my_application_shutdown(GApplication* application) {
+  // MyApplication* self = MY_APPLICATION(object);
+
+  // Perform any actions required at application shutdown.
+
+  G_APPLICATION_CLASS(my_application_parent_class)->shutdown(application);
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line =
+      my_application_local_command_line;
+  G_APPLICATION_CLASS(klass)->startup = my_application_startup;
+  G_APPLICATION_CLASS(klass)->shutdown = my_application_shutdown;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  // Set the program name to the application ID, which helps various systems
+  // like GTK and desktop environments map this running application to its
+  // corresponding .desktop file. This ensures better integration by allowing
+  // the application to be recognized beyond its binary name.
+  g_set_prgname(APPLICATION_ID);
+
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID, "flags",
+                                     G_APPLICATION_NON_UNIQUE, nullptr));
+}

coordinator_frontend/linux/runner/my_application.h

@@ -0,0 +1,21 @@
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication,
+                     my_application,
+                     MY,
+                     APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_

coordinator_frontend/macos/.gitignore

@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/

coordinator_frontend/macos/Flutter/Flutter-Debug.xcconfig

@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"

coordinator_frontend/macos/Flutter/Flutter-Release.xcconfig

@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"

coordinator_frontend/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -0,0 +1,12 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import file_picker
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
+}

coordinator_frontend/macos/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,705 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 54;
+	objects = {
+
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+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
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+			);
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+
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+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		331C80D9294CF71000263BE5 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC10EC2044A3C60003C045;
+			remoteInfo = Runner;
+		};
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
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+/* End PBXCopyFilesBuildPhase section */
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+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
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+/* End PBXFrameworksBuildPhase section */
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+/* Begin PBXGroup section */
+		331C80D6294CF71000263BE5 /* RunnerTests */ = {
+			isa = PBXGroup;
+			children = (
+				331C80D7294CF71000263BE5 /* RunnerTests.swift */,
+			);
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+			isa = PBXGroup;
+			children = (
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+				333000ED22D3DE5D00554162 /* Warnings.xcconfig */,
+			);
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+		};
+		33CC10E42044A3C60003C045 = {
+			isa = PBXGroup;
+			children = (
+				33FAB671232836740065AC1E /* Runner */,
+				33CEB47122A05771004F2AC0 /* Flutter */,
+				331C80D6294CF71000263BE5 /* RunnerTests */,
+				33CC10EE2044A3C60003C045 /* Products */,
+				D73912EC22F37F3D000D13A0 /* Frameworks */,
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+				33CC10ED2044A3C60003C045 /* coordinator_frontend.app */,
+				331C80D5294CF71000263BE5 /* RunnerTests.xctest */,
+			);
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+			sourceTree = "<group>";
+		};
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+			isa = PBXGroup;
+			children = (
+				33CC10F22044A3C60003C045 /* Assets.xcassets */,
+				33CC10F42044A3C60003C045 /* MainMenu.xib */,
+				33CC10F72044A3C60003C045 /* Info.plist */,
+			);
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+			);
+			path = Flutter;
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+		};
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coordinator_frontend/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
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+	<true/>
+</dict>
+</plist>

coordinator_frontend/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,99 @@
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+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
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coordinator_frontend/macos/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
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coordinator_frontend/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
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