generated from dellevin/template
266 lines
8.7 KiB
Dart
266 lines
8.7 KiB
Dart
import 'package:flutter/foundation.dart';
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import '../../models/data_models.dart';
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import '../database_helper.dart';
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/// 影视数据访问对象
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class MovieDao {
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final DatabaseHelper _dbHelper = DatabaseHelper.instance;
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Future<T> _wrap<T>(String op, Future<T> Function() fn) async {
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try {
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return await fn();
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} catch (e) {
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debugPrint('[MovieDao] $op error: $e');
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rethrow;
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}
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}
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// 获取所有影视记录（未删除的）
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Future<List<Movie>> getAllMovies() => _wrap('getAllMovies', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'is_deleted = ?',
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whereArgs: [0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Movie.fromJson(maps[i]));
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});
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// 分页查询影视记录
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Future<List<Movie>> getMoviesPaged({String? status, int limit = 20, int offset = 0, int sortMode = 0}) => _wrap('getMoviesPaged', () async {
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final db = await _dbHelper.database;
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String where = 'is_deleted = 0';
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List<dynamic> whereArgs = [];
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if (status != null && status.isNotEmpty) {
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where += ' AND status = ?';
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whereArgs.add(status);
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}
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final maps = await db.query('movies', where: where, whereArgs: whereArgs,
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orderBy: _buildMovieOrderBy(sortMode), limit: limit, offset: offset);
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return List.generate(maps.length, (i) => Movie.fromJson(maps[i]));
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});
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static String _buildMovieOrderBy(int sortMode) {
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switch (sortMode) {
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case 1: return 'created_at DESC';
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case 2: return 'rating DESC NULLS LAST, updated_at DESC';
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default: return 'updated_at DESC';
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}
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}
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// 根据状态筛选影视记录
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Future<List<Movie>> getMoviesByStatus(String status) => _wrap('getMoviesByStatus', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'status = ? AND is_deleted = ?',
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whereArgs: [status, 0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Movie.fromJson(maps[i]));
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});
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// 根据导演筛选
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Future<List<Movie>> getMoviesByDirector(String director) => _wrap('getMoviesByDirector', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'directors LIKE ? AND is_deleted = ?',
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whereArgs: ['%$director%', 0],
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orderBy: 'created_at DESC',
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);
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return maps.map((m) => Movie.fromJson(m))
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.where((movie) => movie.directors.contains(director))
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.toList();
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});
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// 根据编剧筛选
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Future<List<Movie>> getMoviesByWriter(String writer) => _wrap('getMoviesByWriter', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'writers LIKE ? AND is_deleted = ?',
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whereArgs: ['%$writer%', 0],
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orderBy: 'created_at DESC',
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);
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return maps.map((m) => Movie.fromJson(m))
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.where((movie) => movie.writers.contains(writer))
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.toList();
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});
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// 根据演员筛选
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Future<List<Movie>> getMoviesByActor(String actor) => _wrap('getMoviesByActor', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'actors LIKE ? AND is_deleted = ?',
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whereArgs: ['%$actor%', 0],
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orderBy: 'created_at DESC',
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);
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return maps.map((m) => Movie.fromJson(m))
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.where((movie) => movie.actors.contains(actor))
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.toList();
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});
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// 根据类型筛选
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Future<List<Movie>> getMoviesByGenre(String genre) => _wrap('getMoviesByGenre', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'genres LIKE ? AND is_deleted = ?',
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whereArgs: ['%$genre%', 0],
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orderBy: 'created_at DESC',
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);
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return maps.map((m) => Movie.fromJson(m))
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.where((movie) => movie.genres.contains(genre))
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.toList();
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});
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// 搜索影视（标题或别名）
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Future<List<Movie>> searchMovies(String keyword) => _wrap('searchMovies', () async {
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final db = await _dbHelper.database;
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final likeKeyword = '%$keyword%';
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: '(title LIKE ? OR alternate_titles LIKE ?) AND is_deleted = ?',
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whereArgs: [likeKeyword, likeKeyword, 0],
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orderBy: 'created_at DESC',
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);
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return maps.map((m) => Movie.fromJson(m)).toList();
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});
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// 添加影视记录
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Future<int> insertMovie(Movie movie) => _wrap('insertMovie', () async {
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final db = await _dbHelper.database;
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return await db.insert('movies', movie.toJson());
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});
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// 更新影视记录
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Future<int> updateMovie(Movie movie) => _wrap('updateMovie', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'movies',
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movie.toJson(),
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where: 'id = ?',
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whereArgs: [movie.id],
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);
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});
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// 仅更新封面偏移量（不触发全量刷新）
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Future<void> updateCoverOffset(String movieId, double offset) => _wrap('updateCoverOffset', () async {
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final db = await _dbHelper.database;
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await db.update('movies', {'cover_offset': offset}, where: 'id = ?', whereArgs: [movieId]);
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});
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// 删除影视记录（软删除）
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Future<int> deleteMovie(String id) => _wrap('deleteMovie', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'movies',
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{'is_deleted': 1, 'updated_at': DateTime.now().toIso8601String()},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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// 获取所有导演（去重）
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Future<List<String>> getAllDirectors() => _wrap('getAllDirectors', () async {
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final movies = await getAllMovies();
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final directors = <String>{};
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for (final movie in movies) {
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directors.addAll(movie.directors);
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}
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return directors.toList()..sort();
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});
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// 获取所有编剧（去重）
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Future<List<String>> getAllWriters() => _wrap('getAllWriters', () async {
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final movies = await getAllMovies();
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final writers = <String>{};
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for (final movie in movies) {
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writers.addAll(movie.writers);
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}
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return writers.toList()..sort();
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});
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// 获取所有演员（去重）
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Future<List<String>> getAllActors() => _wrap('getAllActors', () async {
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final movies = await getAllMovies();
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final actors = <String>{};
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for (final movie in movies) {
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actors.addAll(movie.actors);
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}
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return actors.toList()..sort();
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});
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// 获取所有类型（去重）
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Future<List<String>> getAllGenres() => _wrap('getAllGenres', () async {
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final movies = await getAllMovies();
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final genres = <String>{};
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for (final movie in movies) {
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genres.addAll(movie.genres);
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}
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return genres.toList()..sort();
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});
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// 一次性获取所有元数据（导演、编剧、演员、类型）
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Future<Map<String, List<String>>> getAllMetadata() => _wrap('getAllMetadata', () async {
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final movies = await getAllMovies();
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final directors = <String>{};
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final writers = <String>{};
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final actors = <String>{};
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final genres = <String>{};
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for (final movie in movies) {
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directors.addAll(movie.directors);
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writers.addAll(movie.writers);
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actors.addAll(movie.actors);
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genres.addAll(movie.genres);
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}
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return {
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'directors': directors.toList()..sort(),
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'writers': writers.toList()..sort(),
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'actors': actors.toList()..sort(),
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'genres': genres.toList()..sort(),
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};
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});
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// ========== 回收站相关方法 ==========
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// 获取已删除的影视
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Future<List<Movie>> getDeletedMovies() => _wrap('getDeletedMovies', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'movies',
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where: 'is_deleted = ?',
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whereArgs: [1],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Movie.fromJson(maps[i]));
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});
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// 恢复已删除的影视
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Future<int> restoreMovie(String id) => _wrap('restoreMovie', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'movies',
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{'is_deleted': 0, 'updated_at': DateTime.now().toIso8601String()},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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// 彻底删除影视
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Future<int> permanentDeleteMovie(String id) => _wrap('permanentDeleteMovie', () async {
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final db = await _dbHelper.database;
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// 清理子记录，防止孤儿数据
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await db.delete('movie_reviews', where: 'movie_id = ?', whereArgs: [id]);
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await db.delete('movie_posters', where: 'movie_id = ?', whereArgs: [id]);
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return await db.delete(
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'movies',
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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}
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