import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import '../providers/gitea_sync_provider.dart';

class GiteaSyncSettingsScreen extends ConsumerStatefulWidget {
  const GiteaSyncSettingsScreen({super.key});

  @override
  ConsumerState<GiteaSyncSettingsScreen> createState() => _GiteaSyncSettingsScreenState();
}

class _GiteaSyncSettingsScreenState extends ConsumerState<GiteaSyncSettingsScreen> {
  final _formKey = GlobalKey<FormState>();
  final _urlCtrl = TextEditingController(text: 'http://git.a-crm.controlsystem.kz');
  final _tokenCtrl = TextEditingController();
  final _ownerCtrl = TextEditingController(text: 'Alexyz');
  final _repoCtrl = TextEditingController(text: 'CMMNANAXE-CRM');

  bool _testing = false;

  @override
  void dispose() {
    _urlCtrl.dispose();
    _tokenCtrl.dispose();
    _ownerCtrl.dispose();
    _repoCtrl.dispose();
    super.dispose();
  }

  Future<void> _testAndSave() async {
    if (!_formKey.currentState!.validate()) return;

    setState(() => _testing = true);

    final notifier = ref.read(mindmapSyncProvider.notifier);
    try {
      await notifier.configure(
        baseUrl: _urlCtrl.text.trim(),
        token: _tokenCtrl.text.trim(),
        owner: _ownerCtrl.text.trim(),
        repo: _repoCtrl.text.trim(),
      );

      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('Подключение к Gitea установлено')),
        );
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('Ошибка: $e'), backgroundColor: Colors.red),
        );
      }
    } finally {
      if (mounted) setState(() => _testing = false);
    }
  }

  Future<void> _syncNow() async {
    setState(() => _testing = true);
    final notifier = ref.read(mindmapSyncProvider.notifier);
    try {
      await notifier.syncFromGitea();
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('Синхронизация завершена')),
        );
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('Ошибка синхронизации: $e'), backgroundColor: Colors.red),
        );
      }
    } finally {
      if (mounted) setState(() => _testing = false);
    }
  }

  @override
  Widget build(BuildContext context) {
    final state = ref.watch(mindmapSyncProvider);

    return Scaffold(
      appBar: AppBar(
        title: const Text('Синхронизация с Gitea'),
        leading: IconButton(
          icon: const Icon(Icons.arrow_back),
          onPressed: () => context.pop(),
        ),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Form(
          key: _formKey,
          child: ListView(
            children: [
              // Статус
              Card(
                child: ListTile(
                  leading: Icon(
                    state.isConfigured ? Icons.cloud_done : Icons.cloud_off,
                    color: state.isConfigured ? Colors.green : Colors.grey,
                  ),
                  title: Text(
                    state.isConfigured ? 'Подключено к Gitea' : 'Не подключено',
                    style: Theme.of(context).textTheme.titleMedium,
                  ),
                  subtitle: state.isSyncing
                      ? const Text('Синхронизация...')
                      : state.error != null
                          ? Text('Ошибка: ${state.error}')
                          : const Text('Настройте подключение ниже'),
                ),
              ),
              const SizedBox(height: 16),

              // URL
              TextFormField(
                controller: _urlCtrl,
                decoration: const InputDecoration(
                  labelText: 'Gitea URL',
                  hintText: 'http://git.a-crm.controlsystem.kz',
                  border: OutlineInputBorder(),
                  prefixIcon: Icon(Icons.link),
                ),
                validator: (v) => v == null || v.isEmpty ? 'Укажите URL' : null,
              ),
              const SizedBox(height: 12),

              // Token
              TextFormField(
                controller: _tokenCtrl,
                decoration: const InputDecoration(
                  labelText: 'Access Token',
                  hintText: 'Ваш токен из Gitea (Settings → Applications)',
                  border: OutlineInputBorder(),
                  prefixIcon: Icon(Icons.key),
                ),
                obscureText: true,
                validator: (v) => v == null || v.isEmpty ? 'Укажите токен' : null,
              ),
              const SizedBox(height: 12),

              // Owner
              TextFormField(
                controller: _ownerCtrl,
                decoration: const InputDecoration(
                  labelText: 'Owner (пользователь/организация)',
                  hintText: 'Alexyz',
                  border: OutlineInputBorder(),
                  prefixIcon: Icon(Icons.person),
                ),
                validator: (v) => v == null || v.isEmpty ? 'Укажите владельца' : null,
              ),
              const SizedBox(height: 12),

              // Repo
              TextFormField(
                controller: _repoCtrl,
                decoration: const InputDecoration(
                  labelText: 'Repository',
                  hintText: 'CMMNANAXE-CRM',
                  border: OutlineInputBorder(),
                  prefixIcon: Icon(Icons.folder),
                ),
                validator: (v) => v == null || v.isEmpty ? 'Укажите репозиторий' : null,
              ),
              const SizedBox(height: 24),

              // Кнопки
              ElevatedButton.icon(
                onPressed: _testing ? null : _testAndSave,
                icon: _testing
                    ? const SizedBox(
                        width: 20,
                        height: 20,
                        child: CircularProgressIndicator(strokeWidth: 2),
                      )
                    : const Icon(Icons.save),
                label: const Text('Сохранить и проверить'),
              ),
              const SizedBox(height: 12),

              if (state.isConfigured)
                ElevatedButton.icon(
                  onPressed: _testing ? null : _syncNow,
                  icon: const Icon(Icons.sync),
                  label: const Text('Синхронизировать сейчас'),
                  style: ElevatedButton.styleFrom(
                    backgroundColor: Colors.green,
                    foregroundColor: Colors.white,
                  ),
                ),
            ],
          ),
        ),
      ),
    );
  }
}