import 'package:flutter/material.dart';
import 'package:QuickSSH/screens/edit_client.dart';
import '../widgets/server_status_tile.dart';
import 'add_client.dart';
import 'package:QuickSSH/classes/ServerCommand.dart';
import 'package:QuickSSH/services/storage_service.dart';
import 'package:QuickSSH/screens/settings.dart';
import 'package:flutter/services.dart';
import 'package:QuickSSH/main.dart';
import 'package:QuickSSH/widgets/ad_banner.dart';

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

  @override
  State<HomeScreen> createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  List<ServerCommand> allCommands = [];

  @override
  void initState() {
    super.initState();
    _loadData();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      bool allowed = await settingsController.checkSecurity();

      if (!allowed) {
        SystemNavigator.pop();
      }
    });
  }

  void _loadData() async {
    allCommands = await SecureStorageService.loadCommands();
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context).colorScheme;
    return Scaffold(
      appBar: AppBar(
        backgroundColor: theme.surface,
        leading: Builder(
          builder: (context) {
            return IconButton(
              icon: Icon(Icons.menu, color: theme.onSurface),
              onPressed: () {
                Scaffold.of(context).openDrawer();
              },
            );
          },
        ),
      ),
      drawer: Drawer(
        backgroundColor: theme.primaryContainer,
        child: Padding(
          padding: const EdgeInsets.all(16.0),
          child: ListView(
            children: [
              InkWell(
                borderRadius: BorderRadius.circular(16),
                onTap: _openSettings,
                child: Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text(
                    "Settings",
                    style: TextStyle(
                      color: theme.onSurface,
                      fontWeight: FontWeight.bold,
                      fontSize: 20,
                    ),
                  ),
                ),
              ),
              ListTile(
                title: Text(
                  "Help",
                  style: TextStyle(
                    color: theme.onSurface,
                    fontWeight: FontWeight.bold,
                    fontSize: 20,
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
      body: ListView.builder(
        itemCount: allCommands.length,
        itemBuilder: (context, index) {
          // You can keep this as 'context' or rename it
          return ServerStatusTile(
            command: allCommands[index],
            onEdit: () => _editCommand(allCommands[index], index),
          );
        },
      ),
      floatingActionButton: Builder(
        builder: (context) {
          return FloatingActionButton(
            backgroundColor: theme.primary,
            shape: const CircleBorder(),
            child: const Icon(
              Icons.add,
              color: Color.fromARGB(255, 0, 0, 0),
              size: 32,
              weight: 50,
            ),
            onPressed: () {
              _addCommand();
            },
          );
        },
      ),
      bottomNavigationBar: SafeArea(
        child: MyBannerAd(isEnabled: settingsController.adsEnabled),
      ),
      backgroundColor: theme.surface,
    );
  }

  void _addCommand() async {
    final result = await Navigator.push(
      context,
      MaterialPageRoute(builder: (context) => const AddClient()),
    );

    if (result != null) {
      setState(() {
        allCommands.add(result);
      });
      SecureStorageService.saveCommands(allCommands);
    }
  }

  _editCommand(ServerCommand cmdToEdit, int index) async {
    final result = await Navigator.push(
      context,
      MaterialPageRoute(
        builder: (context) => EditClient(existingCommand: cmdToEdit),
      ),
    );

    if (result != null) {
      if (result == "DELETE") {
        setState(() {
          allCommands.removeAt(index);
        });
        SecureStorageService.saveCommands(allCommands);
        return;
      }

      setState(() {
        allCommands[index] = result;
      });
      SecureStorageService.saveCommands(allCommands);
    }
  }

  _openSettings() {
    Navigator.push(
      context,
      MaterialPageRoute(builder: (context) => Settings()),
    ).then((_) {
      setState(() {});
    });
  }
}