import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';

import 'package:minstrel/auth/auth_provider.dart';
import 'package:minstrel/models/admin_request.dart';
import 'package:minstrel/models/user.dart';
import 'package:minstrel/requests/requests_provider.dart';
import 'package:minstrel/requests/requests_screen.dart';
import 'package:minstrel/theme/theme_data.dart';

class _StubAuth extends AuthController {
  @override
  Future<User?> build() async =>
      const User(id: 'u1', username: 'alice', isAdmin: false);
}

class _StubRequests extends MyRequestsController {
  _StubRequests(this._initial);
  final List<AdminRequest> _initial;
  @override
  Future<List<AdminRequest>> build() async => _initial;
}

const _pendingAlbum = AdminRequest(
  id: 'r1',
  userId: 'u1',
  status: 'pending',
  kind: 'album',
  artistName: 'Aphex Twin',
  albumTitle: 'Drukqs',
  trackTitle: null,
  requestedAt: '2026-05-08T00:00:00Z',
  decidedAt: null,
  notes: null,
  importedAlbumCount: 0,
  importedTrackCount: 0,
);

const _completedTrackWithMatch = AdminRequest(
  id: 'r2',
  userId: 'u1',
  status: 'completed',
  kind: 'track',
  artistName: 'Boards of Canada',
  albumTitle: 'Geogaddi',
  trackTitle: 'Roygbiv',
  requestedAt: '2026-05-01T00:00:00Z',
  decidedAt: '2026-05-02T00:00:00Z',
  notes: null,
  importedAlbumCount: 1,
  importedTrackCount: 1,
  matchedTrackId: 't1',
  matchedAlbumId: 'a1',
);

const _rejectedWithNotes = AdminRequest(
  id: 'r3',
  userId: 'u1',
  status: 'rejected',
  kind: 'artist',
  artistName: 'Some Artist',
  albumTitle: null,
  trackTitle: null,
  requestedAt: '2026-05-01T00:00:00Z',
  decidedAt: '2026-05-02T00:00:00Z',
  notes: 'Not in MusicBrainz',
  importedAlbumCount: 0,
  importedTrackCount: 0,
);

Widget _harness(List<AdminRequest> requests) => ProviderScope(
      overrides: [
        authControllerProvider.overrideWith(() => _StubAuth()),
        myRequestsProvider.overrideWith(() => _StubRequests(requests)),
      ],
      child: MaterialApp(
        theme: buildThemeData(),
        home: const RequestsScreen(),
      ),
    );

void main() {
  testWidgets('renders empty state when no requests', (t) async {
    await t.pumpWidget(_harness(const []));
    await t.pumpAndSettle();
    expect(find.text('Nothing requested yet.'), findsOneWidget);
  });

  testWidgets('renders pending row with Cancel CTA', (t) async {
    await t.pumpWidget(_harness(const [_pendingAlbum]));
    await t.pumpAndSettle();
    expect(find.byKey(const Key('request_row_r1')), findsOneWidget);
    expect(find.text('Drukqs'), findsOneWidget);
    expect(find.text('Cancel'), findsOneWidget);
  });

  testWidgets('renders completed row with Listen CTA', (t) async {
    await t.pumpWidget(_harness(const [_completedTrackWithMatch]));
    await t.pumpAndSettle();
    expect(find.text('Roygbiv'), findsOneWidget);
    expect(find.text('Listen'), findsOneWidget);
    // Ingest progress copy
    expect(find.text('Track ingested'), findsOneWidget);
  });

  testWidgets('renders rejected row with notes; no CTA', (t) async {
    await t.pumpWidget(_harness(const [_rejectedWithNotes]));
    await t.pumpAndSettle();
    expect(find.text('Some Artist'), findsOneWidget);
    expect(find.text('Not in MusicBrainz'), findsOneWidget);
    expect(find.text('Cancel'), findsNothing);
    expect(find.text('Listen'), findsNothing);
  });

  testWidgets('Cancel button opens confirm dialog', (t) async {
    await t.pumpWidget(_harness(const [_pendingAlbum]));
    await t.pumpAndSettle();
    await t.tap(find.text('Cancel'));
    await t.pumpAndSettle();
    expect(find.text('Cancel request?'), findsOneWidget);
    expect(find.text('Cancel "Drukqs"?'), findsOneWidget);
    // Dismiss with Keep
    await t.tap(find.text('Keep'));
    await t.pumpAndSettle();
    expect(find.text('Cancel request?'), findsNothing);
  });
}