// Author: fruit.com.cn

import 'dart:async';

import 'package:fruitshorts/core/data/models/comment.dart';
import 'package:fruitshorts/core/data/models/interaction.dart';
import 'package:fruitshorts/core/data/repositories/comment_repository.dart';
import 'package:fruitshorts/core/data/repositories/interaction_repository.dart';

class CommentPageCall {
  const CommentPageCall({
    required this.dramaId,
    required this.episodeId,
    required this.rootId,
    required this.cursor,
    required this.size,
  });

  final String dramaId;
  final String? episodeId;
  final String? rootId;
  final String? cursor;
  final int size;
}

class PublishCall {
  const PublishCall({
    required this.dramaId,
    required this.episodeId,
    required this.content,
    required this.parentId,
  });

  final String dramaId;
  final String? episodeId;
  final String content;
  final String? parentId;
}

class FakeCommentRepository implements CommentRepository {
  FakeCommentRepository({
    List<CommentPage>? pages,
    this.publishResult,
    this.publishError,
    this.deleteError,
    this.pageError,
    this.countResult,
    this.countError,
  }) : pages = pages ?? const [];

  final List<CommentPage> pages;
  final DramaComment? publishResult;
  final Object? publishError;
  final Object? deleteError;
  final Object? pageError;
  final int? countResult;
  final Object? countError;
  final List<CommentPageCall> pageCalls = [];
  final List<PublishCall> publishCalls = [];
  final List<String> deleteCalls = [];
  final List<String> countCalls = [];
  final List<String> countEpisodeCalls = [];
  int _pageIndex = 0;

  @override
  Future<CommentPage> page({
    required String dramaId,
    String? episodeId,
    String? rootId,
    String? cursor,
    int size = commentPageSize,
  }) async {
    pageCalls.add(
      CommentPageCall(
        dramaId: dramaId,
        episodeId: episodeId,
        rootId: rootId,
        cursor: cursor,
        size: size,
      ),
    );
    final error = pageError;
    if (error != null) throw error;
    if (_pageIndex >= pages.length) return const CommentPage();
    return pages[_pageIndex++];
  }

  @override
  Future<int> count(String dramaId, {String? episodeId}) async {
    countCalls.add(dramaId);
    if (episodeId != null && episodeId.isNotEmpty) {
      countEpisodeCalls.add(episodeId);
    }
    final error = countError;
    if (error != null) throw error;
    final result = countResult;
    if (result == null) throw StateError('comment count unavailable');
    return result;
  }

  @override
  Future<DramaComment> publish({
    required String dramaId,
    String? episodeId,
    required String content,
    String? parentId,
  }) async {
    publishCalls.add(
      PublishCall(
        dramaId: dramaId,
        episodeId: episodeId,
        content: content,
        parentId: parentId,
      ),
    );
    final error = publishError;
    if (error != null) throw error;
    return publishResult ??
        commentFixture(
          id: 'new-comment',
          dramaId: dramaId,
          content: content,
          mine: true,
        );
  }

  @override
  Future<void> delete(String commentId) async {
    deleteCalls.add(commentId);
    final error = deleteError;
    if (error != null) throw error;
  }
}

class FakeInteractionRepository implements InteractionRepository {
  FakeInteractionRepository({
    this.nextLikeResult = const LikeToggleResult(liked: true, count: 1),
  });

  LikeToggleResult nextLikeResult;
  Object? likeError;
  Object? reportError;
  Completer<void>? likeGate;
  String reportId = 'report-1';
  final List<String> likeTargets = [];
  final List<ReportRequest> reports = [];

  @override
  Future<LikeToggleResult> toggleLike({
    required InteractionTargetType targetType,
    required String targetId,
  }) async {
    likeTargets.add('${targetType.apiValue}:$targetId');
    final gate = likeGate;
    if (gate != null) await gate.future;
    final error = likeError;
    if (error != null) throw error;
    return nextLikeResult;
  }

  @override
  Future<String> report(ReportRequest request) async {
    reports.add(request);
    final error = reportError;
    if (error != null) throw error;
    return reportId;
  }
}

DramaComment commentFixture({
  String id = '1001',
  String dramaId = '5',
  String? parentId,
  String? rootId,
  String content = 'A comment',
  String status = 'published',
  int likeCount = 0,
  int replyCount = 0,
  bool liked = false,
  bool mine = false,
}) => DramaComment(
  id: id,
  dramaId: dramaId,
  episodeId: '0',
  parentId: parentId ?? '0',
  rootId: rootId ?? '0',
  userId: mine ? '9' : '8',
  uid: mine ? 'me' : 'viewer',
  nickname: mine ? 'Me' : 'Viewer',
  avatarUrl: '',
  content: content,
  status: status,
  auditReason: '',
  likeCount: likeCount,
  replyCount: replyCount,
  reportCount: 0,
  createdAt: DateTime(2026, 10, 17, 12),
  mine: mine,
  liked: liked,
);