import 'package:cookie_jar/cookie_jar.dart';
import 'package:dio/dio.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../data/api/api_client.dart';
import '../data/api/auth_api.dart';
import '../data/api/chat_api.dart';
import '../data/api/journal_api.dart';
import '../data/api/knowledge_api.dart';
import '../data/api/voice_api.dart';
import '../data/api/milestones_api.dart';
import '../data/api/events_api.dart';
import '../data/api/notes_api.dart';
import '../data/api/projects_api.dart';
import '../data/api/quick_capture_api.dart';
import '../data/api/settings_api.dart';
import '../data/api/tasks_api.dart';
import '../data/local/database.dart';
import '../data/repositories/auth_repository.dart';
import '../data/repositories/chat_repository.dart';
import '../data/repositories/events_repository.dart';
import '../data/repositories/knowledge_repository.dart';
import '../data/repositories/voice_repository.dart';
import '../data/repositories/milestones_repository.dart';
import '../data/repositories/notes_repository.dart';
import '../data/repositories/projects_repository.dart';
import '../data/repositories/tasks_repository.dart';
import '../data/repositories/write_queue.dart';
import 'settings_provider.dart';

final cookieJarProvider = Provider<PersistCookieJar>((ref) {
  final cookiesPath = ref.watch(cookiesPathProvider);
  return buildCookieJar(cookiesPath);
});

final dioProvider = Provider<Dio>((ref) {
  final url = ref.watch(serverUrlProvider) ?? '';
  final jar = ref.watch(cookieJarProvider);
  return buildDio(url, jar);
});

final authApiProvider = Provider<AuthApi>((ref) {
  return AuthApi(ref.watch(dioProvider));
});

final notesApiProvider = Provider<NotesApi>((ref) {
  return NotesApi(ref.watch(dioProvider));
});

final tasksApiProvider = Provider<TasksApi>((ref) {
  return TasksApi(ref.watch(dioProvider));
});

final chatApiProvider = Provider<ChatApi>((ref) {
  return ChatApi(ref.watch(dioProvider));
});

final quickCaptureApiProvider = Provider<QuickCaptureApi>((ref) {
  return QuickCaptureApi(ref.watch(dioProvider));
});

final projectsApiProvider = Provider<ProjectsApi>((ref) {
  return ProjectsApi(ref.watch(dioProvider));
});

/// Local SQLite cache used by repositories for read-through caching and
/// offline fallback. Backed by Drift; lives for the lifetime of the
/// ProviderScope and is closed automatically when the scope disposes.
final fabledDatabaseProvider = Provider<FabledDatabase>((ref) {
  final db = FabledDatabase();
  ref.onDispose(db.close);
  return db;
});

final authRepositoryProvider = Provider<AuthRepository>((ref) {
  return AuthRepository(ref.watch(authApiProvider));
});

final notesRepositoryProvider = Provider<NotesRepository>((ref) {
  return NotesRepository(
    ref.watch(notesApiProvider),
    ref.watch(fabledDatabaseProvider),
  );
});

final tasksRepositoryProvider = Provider<TasksRepository>((ref) {
  return TasksRepository(
    ref.watch(tasksApiProvider),
    ref.watch(fabledDatabaseProvider),
  );
});

final chatRepositoryProvider = Provider<ChatRepository>((ref) {
  return ChatRepository(
    ref.watch(chatApiProvider),
    ref.watch(fabledDatabaseProvider),
  );
});

final projectsRepositoryProvider = Provider<ProjectsRepository>((ref) {
  return ProjectsRepository(
    ref.watch(projectsApiProvider),
    ref.watch(fabledDatabaseProvider),
  );
});

final milestonesApiProvider = Provider<MilestonesApi>((ref) {
  return MilestonesApi(ref.watch(dioProvider));
});

final milestonesRepositoryProvider = Provider<MilestonesRepository>((ref) {
  return MilestonesRepository(
    ref.watch(milestonesApiProvider),
    ref.watch(fabledDatabaseProvider),
  );
});

final knowledgeApiProvider = Provider<KnowledgeApi>((ref) {
  return KnowledgeApi(ref.watch(dioProvider));
});

final knowledgeRepositoryProvider = Provider<KnowledgeRepository>((ref) {
  return KnowledgeRepository(ref.watch(knowledgeApiProvider));
});

final journalApiProvider = Provider<JournalApi>((ref) {
  return JournalApi(ref.watch(dioProvider));
});

final settingsApiProvider = Provider<SettingsApi>((ref) {
  return SettingsApi(ref.watch(dioProvider));
});

final voiceApiProvider = Provider<VoiceApi>((ref) {
  return VoiceApi(ref.watch(dioProvider));
});

final voiceRepositoryProvider = Provider<VoiceRepository>((ref) {
  return VoiceRepository(ref.watch(voiceApiProvider));
});

final eventsApiProvider = Provider<EventsApi>((ref) {
  return EventsApi(ref.watch(dioProvider));
});

final eventsRepositoryProvider = Provider<EventsRepository>((ref) {
  return EventsRepository(
    ref.watch(eventsApiProvider),
    ref.watch(fabledDatabaseProvider),
  );
});

/// Phase 3 — drains the offline write queue. Listen on
/// `writeQueueFailuresProvider` to surface dropped ops to the user;
/// `writeQueueDepthProvider` powers the OfflineBanner's "Retry (N)" affordance.
final writeQueueProvider = Provider<WriteQueue>((ref) {
  final queue = WriteQueue(
    db: ref.watch(fabledDatabaseProvider),
    notesApi: ref.watch(notesApiProvider),
    tasksApi: ref.watch(tasksApiProvider),
    projectsApi: ref.watch(projectsApiProvider),
    milestonesApi: ref.watch(milestonesApiProvider),
    eventsApi: ref.watch(eventsApiProvider),
  );
  ref.onDispose(queue.dispose);
  return queue;
});

final writeQueueDepthProvider = StreamProvider<int>((ref) {
  return ref.watch(fabledDatabaseProvider).watchQueueDepth();
});

final writeQueueFailuresProvider = StreamProvider<QueueFailure>((ref) {
  return ref.watch(writeQueueProvider).failures;
});

/// Per-domain set of ids with a queued write (target_id ∪ temp_id). Phase 4
/// — used by `PendingSyncBadge` in list views to mark rows that are still
/// in flight.
final pendingNoteIdsProvider = StreamProvider<Set<int>>((ref) {
  return ref.watch(fabledDatabaseProvider).watchPendingIds(kSyncDomainNotes);
});

final pendingTaskIdsProvider = StreamProvider<Set<int>>((ref) {
  return ref.watch(fabledDatabaseProvider).watchPendingIds(kSyncDomainTasks);
});

final pendingProjectIdsProvider = StreamProvider<Set<int>>((ref) {
  return ref
      .watch(fabledDatabaseProvider)
      .watchPendingIds(kSyncDomainProjects);
});