// ***************************************************************
// SMARTAGO: DEEP LINK INTEGRATION EXAMPLE (FLUTTER/DART)
// ***************************************************************
// This code demonstrates how your Flutter application listens for,
// receives, and parses the configuration data sent via Deep Link.
// This structure is ideal for cross-platform Android TV apps.
// (Assumes a package like ‘uni_links’ or platform channel is used
// to get the incoming link, here simulated by calling _handleDeepLink).
// ***************************************************************

import ‘package:flutter/material.dart’;

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: ‘Smartago Flutter Config’,
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const ConfigurationScreen(),
    );
  }
}

class ConfigurationScreen extends StatefulWidget {
  const ConfigurationScreen({super.key});

  @override
  State<ConfigurationScreen> createState() => _ConfigurationScreenState();
}

class _ConfigurationScreenState extends State<ConfigurationScreen> {
  // State variables to show the form data received
  String _statusMessage = “Waiting for Deep Link setup…”;
  String _username = ”;
  String _password = ”;
  String _providerUrl = ”;
  String _taskId = ”;

  @override
  void initState() {
    super.initState();
    // In a real app, you would set up listeners here:
    // 1. Get the initial Deep Link (if the app was opened by the link)
    // 2. Set up a stream listener for new Deep Links (if the app is already running)

    // *** SIMULATION: Calling the handler with a mock Deep Link ***
    // Replace this call with your actual uni_links listener implementation
    Future.delayed(const Duration(seconds: 2), () {
      const mockUrl = “your-app-scheme://smartago/config?username=testuser&password=secure123&provider_url=http://provider.url/list.m3u&task_id=1”;
      _handleDeepLink(mockUrl);
    });
  }

  void _handleDeepLink(String url) {
    if (!url.contains(“smartago”)) {
      setState(() {
        _statusMessage = “Error: URL does not contain Smartago path.”;
      });
      return;
    }

    try {
      // 1. Parse the full URI (Deep Link) using Dart’s Uri class
      final deepLinkUri = Uri.parse(url);
      print(“Deep Link received: ${deepLinkUri.toString()}”);

      // 2. Reading (Parsing) the parameters
      // Use queryParametersAll or queryParameters map
     
      final params = deepLinkUri.queryParameters;

      final username = params[‘username’];
      final password = params[‘password’];
      final providerUrl = params[‘provider_url’];
      final taskId = params[‘task_id’];

      // 3. Filling the Form (Automation) – Update State
      if (username != null && password != null && providerUrl != null) {
        setState(() {
          _username = username;
          _password = password;
          _providerUrl = providerUrl;
          _taskId = taskId ?? ‘N/A’;
          _statusMessage = “Setup data received and form filled successfully!”;
        });

        // **************************************************
        // THIS IS THE CRITICAL POINT:
        // Your code here to update form controllers or submit automatically.
        // **************************************************
       
      } else {
        setState(() {
          _statusMessage = “Error: Missing essential configuration parameters.”;
        });
      }
    } catch (e) {
      setState(() {
        _statusMessage = “Error parsing Deep Link: $e”;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text(‘Smartago Remote Configuration’)),
      body: Center(
        child: Padding(
          padding: const EdgeInsets.all(32.0),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              // Status Message Area
              Text(
                _statusMessage,
                style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                textAlign: TextAlign.center,
              ),
              const SizedBox(height: 40),
             
              // Received Data Display (Simulated Form Fields)
              const Text(“— RECEIVED DATA —“, style: TextStyle(fontWeight: FontWeight.w600)),
              const Divider(),
              _buildDataRow(‘Username:’, _username),
              _buildDataRow(‘Password:’, _password.replaceAll(RegExp(r’.’), ‘*’)), // Masking password
              _buildDataRow(‘Provider URL:’, _providerUrl),
              _buildDataRow(‘Task ID (4th digit):’, _taskId),
             
              const SizedBox(height: 40),
              if (_username.isNotEmpty)
                ElevatedButton(
                  onPressed: () {
                    // This simulates the automatic submission after data transfer
                    setState(() {
                      _statusMessage = “Login process started automatically!”;
                    });
                  },
                  style: ElevatedButton.styleFrom(
                    backgroundColor: Colors.green,
                    padding: const EdgeInsets.symmetric(horizontal: 40, vertical: 15),
                  ),
                  child: const Text(‘Proceed to Login’, style: TextStyle(fontSize: 18)),
                ),
            ],
          ),
        ),
      ),
    );
  }
 
  // Helper widget to display data clearly
  Widget _buildDataRow(String label, String value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 8.0),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(label, style: const TextStyle(fontWeight: FontWeight.w500)),
          Flexible(child: Text(value, overflow: TextOverflow.ellipsis)),
        ],
      ),
    );
  }
}