-- D1 数据库初始化脚本
-- 用于创建 KatelyaTV 所需的数据表

-- 用户表
CREATE TABLE IF NOT EXISTS users (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  username TEXT UNIQUE NOT NULL,
  password TEXT NOT NULL,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

-- 播放记录表
CREATE TABLE IF NOT EXISTS play_records (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  record_key TEXT NOT NULL,
  video_url TEXT,
  current_time REAL DEFAULT 0,
  duration REAL DEFAULT 0,
  episode_index INTEGER DEFAULT 0,
  episode_url TEXT,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
  UNIQUE (user_id, record_key)
);

-- 收藏表
CREATE TABLE IF NOT EXISTS favorites (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  favorite_key TEXT NOT NULL,
  title TEXT,
  cover_url TEXT,
  rating REAL,
  year TEXT,
  area TEXT,
  category TEXT,
  actors TEXT,
  director TEXT,
  description TEXT,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
  UNIQUE (user_id, favorite_key)
);

-- 搜索历史表
CREATE TABLE IF NOT EXISTS search_history (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  keyword TEXT NOT NULL,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
);

-- 跳过配置表
CREATE TABLE IF NOT EXISTS skip_configs (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  config_key TEXT NOT NULL,
  start_time INTEGER DEFAULT 0,
  end_time INTEGER DEFAULT 0,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
  UNIQUE (user_id, config_key)
);

-- 管理员配置表
CREATE TABLE IF NOT EXISTS admin_configs (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  config_key TEXT UNIQUE NOT NULL,
  config_value TEXT,
  description TEXT,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

-- 插入默认管理员配置
INSERT OR IGNORE INTO admin_configs (config_key, config_value, description) VALUES
('site_name', 'KatelyaTV', '站点名称'),
('site_description', '高性能影视播放平台', '站点描述'),
('enable_register', 'true', '是否允许用户注册'),
('max_users', '100', '最大用户数量'),
('cache_ttl', '3600', '缓存时间（秒）');

-- 创建索引以提高查询性能
CREATE INDEX IF NOT EXISTS idx_play_records_user_id ON play_records(user_id);
CREATE INDEX IF NOT EXISTS idx_play_records_record_key ON play_records(record_key);
CREATE INDEX IF NOT EXISTS idx_favorites_user_id ON favorites(user_id);
CREATE INDEX IF NOT EXISTS idx_search_history_user_id ON search_history(user_id);
CREATE INDEX IF NOT EXISTS idx_skip_configs_user_id ON skip_configs(user_id);

-- 创建视图以简化查询
CREATE VIEW IF NOT EXISTS user_stats AS
SELECT 
  u.id,
  u.username,
  COUNT(DISTINCT pr.id) as play_count,
  COUNT(DISTINCT f.id) as favorite_count,
  COUNT(DISTINCT sh.id) as search_count,
  u.created_at
FROM users u
LEFT JOIN play_records pr ON u.id = pr.user_id
LEFT JOIN favorites f ON u.id = f.user_id
LEFT JOIN search_history sh ON u.id = sh.user_id
GROUP BY u.id, u.username, u.created_at;