import {bigint, boolean, index, integer, pgEnum, pgTable, serial, text, timestamp, uniqueIndex, uuid, varchar, unique} from 'drizzle-orm/pg-core';
import {relations, sql} from 'drizzle-orm';

// 枚举定义
export const blacklistTypeEnum = pgEnum('BlacklistType', ['SONG', 'KEYWORD', 'LANGUAGE', 'GENRE']);
export const userStatusEnum = pgEnum('user_status', ['active', 'pending', 'withdrawn', 'graduate', 'rejected']);
export const collaboratorStatusEnum = pgEnum('collaborator_status', ['PENDING', 'ACCEPTED', 'REJECTED']);
export const replayRequestStatusEnum = pgEnum('replay_request_status', ['PENDING', 'FULFILLED', 'REJECTED']);
export const cardCodeStatusEnum = pgEnum('card_code_status', [
  'AVAILABLE',
  'LOCKED',
  'REDEEMED',
  'INVALID'
]);

// 用户表
export const users = pgTable('User', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  username: text('username').notNull(),
  name: text('name'),
  grade: text('grade'),
  class: text('class'),
  role: text('role').default('USER').notNull(),
  password: text('password').notNull(),
  email: text('email'),
  emailVerified: boolean('emailVerified').default(false),
  lastLogin: timestamp('lastLogin'),
  lastLoginIp: text('lastLoginIp'),
  passwordChangedAt: timestamp('passwordChangedAt'),
  forcePasswordChange: boolean('forcePasswordChange').default(false).notNull(),
  tokenVersion: integer('tokenVersion').default(0).notNull(),
  meowNickname: text('meowNickname'),
  meowBoundAt: timestamp('meowBoundAt'),
  avatarProvider: text('avatarProvider'),
  avatarProviderUserId: text('avatarProviderUserId'),
  status: userStatusEnum('status').default('active').notNull(),
  statusChangedAt: timestamp('statusChangedAt').defaultNow(),
  statusChangedBy: integer('statusChangedBy'),
  // 注册时可选填写的备注，管理员审核时可修改
  remark: text('remark'),
}, (table) => [uniqueIndex('User_username_unique').on(table.username)]);

// 登录会话表，id 与 JWT 的 jti 一致
export const authSessions = pgTable('auth_sessions', {
  id: uuid('id').primaryKey(),
  userId: integer('user_id').notNull().references(() => users.id, { onDelete: 'cascade' }),
  createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),
  lastActiveAt: timestamp('last_active_at', { withTimezone: true }).defaultNow().notNull(),
  expiresAt: timestamp('expires_at', { withTimezone: true }).notNull(),
  ipAddress: text('ip_address'),
  userAgent: text('user_agent'),
  browser: text('browser'),
  operatingSystem: text('operating_system'),
  device: text('device'),
  loginMethod: text('login_method').default('password').notNull(),
  revokedAt: timestamp('revoked_at', { withTimezone: true }),
  revokedReason: text('revoked_reason')
}, (table) => [
  index('auth_sessions_user_active_idx').on(table.userId, table.revokedAt, table.expiresAt),
  index('auth_sessions_last_active_idx').on(table.lastActiveAt)
]);

export type AuthSession = typeof authSessions.$inferSelect;
export type NewAuthSession = typeof authSessions.$inferInsert;

// 播出时段表
export const playTimes = pgTable('PlayTime', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  name: text('name').notNull(),
  startTime: text('startTime'),
  endTime: text('endTime'),
  enabled: boolean('enabled').default(true).notNull(),
  description: text('description'),
});

// 年级班级配置表（选择器选项来源，优先于从用户提取）
export const gradeClass = pgTable(
  'GradeClass',
  {
    id: serial('id').primaryKey(),
    createdAt: timestamp('createdAt').defaultNow().notNull(),
    updatedAt: timestamp('updatedAt').defaultNow().notNull(),
    grade: text('grade').notNull(),
    class: text('class').notNull(),
  },
  (table) => [unique('GradeClass_grade_class_unique').on(table.grade, table.class)],
);

// 歌曲表
export const songs = pgTable('Song', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  title: text('title').notNull(),
  artist: text('artist').notNull(),
  requesterId: integer('requesterId').notNull(),
  played: boolean('played').default(false).notNull(),
  playedAt: timestamp('playedAt').defaultNow(),
  semester: text('semester'),
  preferredPlayTimeId: integer('preferredPlayTimeId'),
  cover: text('cover'),
  playUrl: text('playUrl'),
  musicPlatform: text('musicPlatform'),
  musicId: text('musicId'),
  durationSeconds: integer('durationSeconds'),
  submissionNote: text('submissionNote'),
  submissionNotePublic: boolean('submissionNotePublic').default(false).notNull(),
  // 公开留言审核状态：'pending' | 'approved' | 'rejected' | null（null 表示未启用审核或不涉及）
  submissionNotePublicStatus: text('submissionNotePublicStatus'),
  hitRequestId: integer(),
  cardCodeId: integer('cardCodeId').references(() => cardCodes.id, { onDelete: 'set null' }),
}, (table) => [
  index('song_card_code_id_idx').on(table.cardCodeId),
  index('song_semester_created_at_idx').on(table.semester, table.createdAt),
  index('song_requester_id_idx').on(table.requesterId)
]);

// 投票表
export const votes = pgTable('Vote', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  songId: integer('songId').notNull(),
  userId: integer('userId').notNull(),
}, (table) => [
  unique('vote_song_user_unique').on(table.songId, table.userId),
  index('vote_user_song_idx').on(table.userId, table.songId)
]);

// 排期表
export const schedules = pgTable('Schedule', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  songId: integer('songId').notNull(),
  playDate: timestamp('playDate').notNull(),
  played: boolean('played').default(false).notNull(),
  sequence: integer('sequence').default(1).notNull(),
  playTimeId: integer('playTimeId'),
  // 草稿支持字段
  isDraft: boolean('isDraft').default(false).notNull(),
  publishedAt: timestamp('publishedAt'),
  replayRequestId: integer('replay_request_id'),
}, (table) => [
  index('schedule_published_song_idx').on(table.isDraft, table.songId, table.playDate),
  index('schedule_published_date_idx').on(table.isDraft, table.playDate)
]);

// 排期备选池表
export const scheduleSongPool = pgTable('ScheduleSongPool', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  songId: integer('songId').notNull().references(() => songs.id, { onDelete: 'cascade' }),
  addedBy: integer('addedBy').references(() => users.id, { onDelete: 'set null' })
}, (table) => [
  unique('schedule_song_pool_song_unique').on(table.songId)
]);

export type ScheduleSongPool = typeof scheduleSongPool.$inferSelect;
export type NewScheduleSongPool = typeof scheduleSongPool.$inferInsert;

// 通知表
export const notifications = pgTable('Notification', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  type: text('type').notNull(),
  batchId: text('batchId'),
  source: text('source').default('SYSTEM').notNull(),
  senderId: integer('senderId'),
  senderName: text('senderName'),
  senderUsername: text('senderUsername'),
  title: text('title'),
  message: text('message').notNull(),
  important: boolean('important').default(false).notNull(),
  read: boolean('read').default(false).notNull(),
  userDeleted: boolean('userDeleted').default(false).notNull(),
  userId: integer('userId').notNull(),
  songId: integer('songId'),
}, (table) => [
  index('notification_user_important_read_created_idx').on(
    table.userId,
    table.userDeleted,
    table.important,
    table.read,
    table.createdAt
  ),
  index('notification_batch_id_idx').on(table.batchId)
]);

// 通知设置表
export const notificationSettings = pgTable('NotificationSettings', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  userId: integer('userId').notNull(),
  enabled: boolean('enabled').default(true).notNull(),
  songRequestEnabled: boolean('songRequestEnabled').default(true).notNull(),
  songVotedEnabled: boolean('songVotedEnabled').default(true).notNull(),
  songPlayedEnabled: boolean('songPlayedEnabled').default(true).notNull(),
  refreshInterval: integer('refreshInterval').default(60).notNull(),
  songVotedThreshold: integer('songVotedThreshold').default(1).notNull(),
});

// 学期表
export const semesters = pgTable('Semester', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  name: text('name').notNull(),
  isActive: boolean('isActive').default(false).notNull(),
});

// 系统设置表
export const systemSettings = pgTable('SystemSettings', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  instanceId: text('instance_id'),
  telemetryEnabled: boolean('telemetryEnabled').default(true).notNull(),
  enablePlayTimeSelection: boolean('enablePlayTimeSelection').default(false).notNull(),
  siteTitle: text('siteTitle'),
  siteLogoUrl: text('siteLogoUrl'),
  schoolLogoHomeUrl: text('schoolLogoHomeUrl'),
  schoolLogoPrintUrl: text('schoolLogoPrintUrl'),
  siteDescription: text('siteDescription'),
  submissionGuidelines: text('submissionGuidelines'),
  icpNumber: text('icpNumber'),
  gonganNumber: text('gonganNumber'),
  showBeianIcon: boolean('showBeianIcon').default(false).notNull(),
  enableSubmissionLimit: boolean('enableSubmissionLimit').default(false).notNull(),
  dailySubmissionLimit: integer('dailySubmissionLimit'),
  weeklySubmissionLimit: integer('weeklySubmissionLimit'),
  monthlySubmissionLimit: integer('monthlySubmissionLimit'),
  // 用户可见播出排期范围
  scheduleDaysBeforeEnabled: boolean('scheduleDaysBeforeEnabled').default(false).notNull(),
  scheduleDaysBefore: integer('scheduleDaysBefore').default(1).notNull(),
  scheduleDaysAfterEnabled: boolean('scheduleDaysAfterEnabled').default(false).notNull(),
  scheduleDaysAfter: integer('scheduleDaysAfter').default(1).notNull(),
  showBlacklistKeywords: boolean('showBlacklistKeywords').default(false).notNull(),
  hideStudentInfo: boolean('hideStudentInfo').default(true).notNull(),
  // SMTP 邮件配置
  smtpEnabled: boolean('smtpEnabled').default(false).notNull(),
  smtpHost: text('smtpHost'),
  smtpPort: integer('smtpPort').default(587),
  smtpSecure: boolean('smtpSecure').default(false),
  smtpUsername: text('smtpUsername'),
  smtpPassword: text('smtpPassword'),
  smtpFromEmail: text('smtpFromEmail'),
  smtpFromName: text('smtpFromName').default('校园广播站'),
  enableRequestTimeLimitation: boolean('enableRequestTimeLimitation').default(false).notNull(),
  forceBlockAllRequests: boolean().default(false).notNull(),
  forcePasswordChangeOnFirstLogin: boolean('forcePasswordChangeOnFirstLogin').default(false).notNull(),
  enableReplayRequests: boolean('enableReplayRequests').default(false).notNull(),
  enableCollaborativeSubmission: boolean('enableCollaborativeSubmission').default(true).notNull(),
  enableSubmissionRemarks: boolean('enableSubmissionRemarks').default(false).notNull(),
  // 卡密点歌相关开关（用于允许用户使用卡密或强制使用卡密投稿）
  enableCardCodeRequests: boolean('enableCardCodeRequests').default(false).notNull(),
  requireCardCodeForRequests: boolean('requireCardCodeForRequests').default(false).notNull(),
  enableCardCodeLimitBypass: boolean('enableCardCodeLimitBypass').default(false).notNull(),
  // 重复投稿限制：对同一首歌/同一歌手，在其进入排期后的设定时间窗口内禁止再次投稿
  enableSubmissionRestriction: boolean('enableSubmissionRestriction').default(false).notNull(),
  submissionRestrictionScope: text('submissionRestrictionScope').default('all').notNull(),
  sameSongRestrictionHours: integer('sameSongRestrictionHours'),
  sameArtistRestrictionHours: integer('sameArtistRestrictionHours'),
  
  // 验证码配置
  captchaProvider: text('captchaProvider').default('graphic').notNull(),
  turnstileSiteKey: text('turnstileSiteKey'),
  turnstileSecretKey: text('turnstileSecretKey'),
  
  // 注册配置
  allowRegister: boolean('allowRegister').default(false).notNull(),
  registerRequiresApproval: boolean('registerRequiresApproval').default(true).notNull(),
  oauthRegisterRequiresApproval: boolean('oauthRegisterRequiresApproval').default(true).notNull(),
  // 注册邮箱（选填→管理员开关控制；需 SMTP 已配置）
  registerEmailRequired: boolean('registerEmailRequired').default(false).notNull(),
  // 注册时必须选择年级班级（本地注册与第三方创建账户均强制）
  registerRequiresGradeClass: boolean('registerRequiresGradeClass').default(false).notNull(),
  // 投稿公开留言审核
  submissionNoteRequiresApproval: boolean('submissionNoteRequiresApproval').default(false).notNull(),

  // OAuth 配置
  allowOAuthRegistration: boolean('allowOAuthRegistration').default(false).notNull(),
  oauthRedirectUri: text('oauthRedirectUri'),
  oauthStateSecret: text('oauthStateSecret'),
  oauthProviders: text('oauthProviders').default('[]'),
  // GitHub OAuth
  githubOAuthEnabled: boolean('githubOAuthEnabled').default(false).notNull(),
  githubClientId: text('githubClientId'),
  githubClientSecret: text('githubClientSecret'),
  // Casdoor OAuth
  casdoorOAuthEnabled: boolean('casdoorOAuthEnabled').default(false).notNull(),
  casdoorServerUrl: text('casdoorServerUrl'),
  casdoorClientId: text('casdoorClientId'),
  casdoorClientSecret: text('casdoorClientSecret'),
  casdoorOrganizationName: text('casdoorOrganizationName'),
  // Google OAuth
  googleOAuthEnabled: boolean('googleOAuthEnabled').default(false).notNull(),
  googleClientId: text('googleClientId'),
  googleClientSecret: text('googleClientSecret'),
  // 聚合登陆
  aggregateOAuthEnabled: boolean('aggregateOAuthEnabled').default(false).notNull(),
  aggregateOAuthAppId: text('aggregateOAuthAppId'),
  aggregateOAuthAppKey: text('aggregateOAuthAppKey'),
  aggregateOAuthLoginType: text('aggregateOAuthLoginType').default('qq'),
  aggregateOAuthEndpoint: text('aggregateOAuthEndpoint'),
  // Custom OAuth2
  customOAuthEnabled: boolean('customOAuthEnabled').default(false).notNull(),
  customOAuthDisplayName: text('customOAuthDisplayName'),
  customOAuthAuthorizeUrl: text('customOAuthAuthorizeUrl'),
  customOAuthTokenUrl: text('customOAuthTokenUrl'),
  customOAuthUserInfoUrl: text('customOAuthUserInfoUrl'),
  customOAuthScope: text('customOAuthScope'),
  customOAuthClientId: text('customOAuthClientId'),
  customOAuthClientSecret: text('customOAuthClientSecret'),
  customOAuthUserIdField: text('customOAuthUserIdField'),
  customOAuthUsernameField: text('customOAuthUsernameField'),
  customOAuthNameField: text('customOAuthNameField'),
  customOAuthEmailField: text('customOAuthEmailField'),
  customOAuthAvatarField: text('customOAuthAvatarField'),
  // 图形验证码
  captchaEnabled: boolean('captchaEnabled').default(false).notNull(),
  captchaMaxFailures: integer('captchaMaxFailures').default(3).notNull(),

  // 自动备份配置
  autoBackupEnabled: boolean('autoBackupEnabled').default(false).notNull(),
  autoBackupConfig: text('autoBackupConfig'),

  // 站点统计代码（任意站点统计平台的 HTML/JS 片段，注入 SSR 页面 <head>）
  statisticsCodeEnabled: boolean('statisticsCodeEnabled').default(false).notNull(),
  statisticsCode: text('statisticsCode'),

  // 主题管理配置
  defaultTheme: text('defaultTheme').default('System').notNull(),
  enabledThemes: text('enabledThemes').default('["System","ClassicDark","ClassicLight","ModernLight"]').notNull(),
  // 平台管理配置
  enabledPlatforms: text('enabledPlatforms').default('["netease","tencent","bilibili","migu"]'),
  platformOrder: text('platformOrder').default('["netease","tencent","bilibili","migu"]'),
});

// 歌曲黑名单表
export const songBlacklists = pgTable('SongBlacklist', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  type: blacklistTypeEnum('type').notNull(),
  value: text('value').notNull(),
  reason: text('reason'),
  isActive: boolean('isActive').default(true).notNull(),
  createdBy: integer('createdBy'),
});

// API Keys表
export const apiKeys = pgTable('api_keys', {
  id: uuid('id').primaryKey().defaultRandom(),
  name: varchar('name', { length: 255 }).notNull(),
  description: text('description'),
  keyHash: varchar('key_hash', { length: 255 }).notNull().unique(),
  keyPrefix: varchar('key_prefix', { length: 10 }).notNull(),
  isActive: boolean('is_active').default(true).notNull(),
  expiresAt: timestamp('expires_at', { withTimezone: true }),
  createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),
  updatedAt: timestamp('updated_at', { withTimezone: true }).defaultNow().notNull(),
  lastUsedAt: timestamp('last_used_at', { withTimezone: true }),
  createdByUserId: integer('created_by_user_id').notNull(),
  usageCount: integer('usage_count').default(0).notNull(),

});

// API Key权限表
export const apiKeyPermissions = pgTable('api_key_permissions', {
  id: uuid('id').primaryKey().defaultRandom(),
  apiKeyId: uuid('api_key_id').notNull(),
  permission: varchar('permission', { length: 100 }).notNull(),
  createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),
});

// API访问日志表
export const apiLogs = pgTable('api_logs', {
  id: uuid('id').primaryKey().defaultRandom(),
  apiKeyId: uuid('api_key_id'),
  endpoint: varchar('endpoint', { length: 500 }).notNull(),
  method: varchar('method', { length: 10 }).notNull(),
  ipAddress: text('ip_address').notNull(),
  userAgent: text('user_agent'),
  statusCode: integer('status_code').notNull(),
  responseTimeMs: integer('response_time_ms').notNull(),
  requestBody: text('request_body'),
  responseBody: text('response_body'),
  createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),
  errorMessage: text('error_message'),
});

// 用户状态变更日志表
export const userStatusLogs = pgTable('user_status_logs', {
  id: serial('id').primaryKey(),
  userId: integer('user_id').notNull(),
  // 审计快照：用户被删除后仍可追溯（如注册审核拒绝）
  username: text('username'),
  name: text('name'),
  oldStatus: userStatusEnum('old_status'),
  newStatus: userStatusEnum('new_status').notNull(),
  reason: text('reason'),
  operatorId: integer('operator_id'),
  createdAt: timestamp('created_at').defaultNow().notNull(),
});

export const requestTimes = pgTable("RequestTime", {
  id: serial().primaryKey().notNull(),
  createdAt: timestamp({ precision: 6, mode: 'string' }).defaultNow().notNull(),
  updatedAt: timestamp({ precision: 6, mode: 'string' }).defaultNow().notNull(),
  name: text().notNull(),
  startTime: timestamp({ mode: 'string' }).notNull(),
  endTime: timestamp({ mode: 'string' }).notNull(),
  enabled: boolean().default(true).notNull(),
  description: text(),
  // You can use { mode: "bigint" } if numbers are exceeding js number limitations
  expected: bigint({ mode: "number" }).default(0).notNull(),
  // You can use { mode: "bigint" } if numbers are exceeding js number limitations
  accepted: bigint({ mode: "number" }).default(0).notNull(),
  past: boolean().default(false).notNull(),
});

// 联合投稿人表
export const songCollaborators = pgTable('song_collaborators', {
    id: uuid('id').primaryKey().defaultRandom(),
    songId: integer('song_id').notNull(),
    userId: integer('user_id').notNull(),
    status: collaboratorStatusEnum('status').default('PENDING').notNull(),
    createdAt: timestamp('created_at', {withTimezone: true}).defaultNow().notNull(),
    updatedAt: timestamp('updated_at', {withTimezone: true}).defaultNow().notNull(),
}, (table) => [
    index('song_collaborators_song_status_idx').on(table.songId, table.status),
    index('song_collaborators_user_status_idx').on(table.userId, table.status)
]);

// 联合投稿审计日志表
export const collaborationLogs = pgTable('collaboration_logs', {
    id: uuid('id').primaryKey().defaultRandom(),
    collaboratorId: uuid('collaborator_id').notNull(),
    action: varchar('action', {length: 50}).notNull(), // INVITE, ACCEPT, REJECT, REMOVE
    operatorId: integer('operator_id').notNull(),
    ipAddress: text('ip_address'),
    createdAt: timestamp('created_at', {withTimezone: true}).defaultNow().notNull(),
});

// 歌曲重播申请表
export const songReplayRequests = pgTable('song_replay_requests', {
  id: serial('id').primaryKey(),
  songId: integer('song_id').notNull(),
  userId: integer('user_id').notNull(),
  createdAt: timestamp('created_at', {withTimezone: true}).defaultNow().notNull(),
  updatedAt: timestamp('updated_at', {withTimezone: true}).defaultNow().notNull(),
  status: replayRequestStatusEnum('status').default('PENDING').notNull(),
  preferredPlayTimeId: integer('preferred_play_time_id'),
  submissionNote: text('submission_note'),
  submissionNotePublic: boolean('submission_note_public').default(false).notNull(),
  submissionNotePublicStatus: text('submission_note_public_status'),
}, (table) => [
  // 同一用户对同一首歌同时最多一条待处理申请；历史申请（FULFILLED/REJECTED）允许多条
  uniqueIndex('song_replay_requests_pending_song_user_unique')
    .on(table.songId, table.userId)
    .where(sql`${table.status} = 'PENDING'`),
  index('song_replay_requests_user_status_song_idx').on(table.userId, table.status, table.songId)
]);

// 第三方身份关联表
export const userIdentities = pgTable('UserIdentity', {
  id: serial('id').primaryKey(),
  userId: integer('userId').notNull().references(() => users.id, { onDelete: 'cascade' }),
  provider: text('provider').notNull(),
  providerUserId: text('providerUserId').notNull(),
  providerUsername: text('providerUsername'),
  avatar: text('avatar'),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
}, (t) => ({
  unq: unique().on(t.provider, t.providerUserId),
}));

export const passwordAuditLogs = pgTable('PasswordAuditLog', {
  id: serial('id').primaryKey(),
  userId: integer('userId').notNull(),
  actorId: integer('actorId'),
  action: text('action').notNull(),
  success: boolean('success').notNull(),
  ipAddress: text('ipAddress'),
  userAgent: text('userAgent'),
  failureReason: text('failureReason'),
  createdAt: timestamp('createdAt', { withTimezone: true }).defaultNow().notNull()
}, (table) => ({
  userCreatedIdx: index('PasswordAuditLog_user_created_idx').on(table.userId, table.createdAt)
}));

export const passwordRateLimits = pgTable('PasswordRateLimit', {
  key: text('key').primaryKey(),
  count: integer('count').notNull(),
  resetAt: timestamp('resetAt', { withTimezone: true }).notNull()
}, (table) => ({
  resetIdx: index('PasswordRateLimit_reset_idx').on(table.resetAt)
}));

// 关系定义
export const usersRelations = relations(users, ({ many, one }) => ({
  songs: many(songs),
  votes: many(votes),
  notifications: many(notifications),
  identities: many(userIdentities),
  notificationSettings: one(notificationSettings, {
    fields: [users.id],
    references: [notificationSettings.userId],
  }),
  apiKeys: many(apiKeys),
  sessions: many(authSessions),
  statusLogs: many(userStatusLogs),
    collaborations: many(songCollaborators),
  replayRequests: many(songReplayRequests),
  statusChangedByUser: one(users, {
    fields: [users.statusChangedBy],
    references: [users.id],
  }),
}));

export const userIdentitiesRelations = relations(userIdentities, ({ one }) => ({
  user: one(users, {
    fields: [userIdentities.userId],
    references: [users.id],
  }),
}));

export const songsRelations = relations(songs, ({ one, many }) => ({
  requester: one(users, {
    fields: [songs.requesterId],
    references: [users.id],
  }),
  preferredPlayTime: one(playTimes, {
    fields: [songs.preferredPlayTimeId],
    references: [playTimes.id],
  }),
  votes: many(votes),
  schedules: many(schedules),
  notifications: many(notifications),
    collaborators: many(songCollaborators),
    replayRequests: many(songReplayRequests),
}));

export const votesRelations = relations(votes, ({ one }) => ({
  song: one(songs, {
    fields: [votes.songId],
    references: [songs.id],
  }),
  user: one(users, {
    fields: [votes.userId],
    references: [users.id],
  }),
}));

export const schedulesRelations = relations(schedules, ({ one }) => ({
  song: one(songs, {
    fields: [schedules.songId],
    references: [songs.id],
  }),
  playTime: one(playTimes, {
    fields: [schedules.playTimeId],
    references: [playTimes.id],
  }),
}));

export const notificationsRelations = relations(notifications, ({ one }) => ({
  user: one(users, {
    fields: [notifications.userId],
    references: [users.id],
  }),
  song: one(songs, {
    fields: [notifications.songId],
    references: [songs.id],
  }),
}));

export const notificationSettingsRelations = relations(notificationSettings, ({ one }) => ({
  user: one(users, {
    fields: [notificationSettings.userId],
    references: [users.id],
  }),
}));

export const playTimesRelations = relations(playTimes, ({ many }) => ({
  songs: many(songs),
  schedules: many(schedules),
}));

// API框架关系定义
export const apiKeysRelations = relations(apiKeys, ({ one, many }) => ({
  createdByUser: one(users, {
    fields: [apiKeys.createdByUserId],
    references: [users.id],
  }),
  permissions: many(apiKeyPermissions),
  logs: many(apiLogs),
}));

export const apiKeyPermissionsRelations = relations(apiKeyPermissions, ({ one }) => ({
  apiKey: one(apiKeys, {
    fields: [apiKeyPermissions.apiKeyId],
    references: [apiKeys.id],
  }),
}));

export const apiLogsRelations = relations(apiLogs, ({ one }) => ({
  apiKey: one(apiKeys, {
    fields: [apiLogs.apiKeyId],
    references: [apiKeys.id],
  }),
}));

export const userStatusLogsRelations = relations(userStatusLogs, ({ one }) => ({
  user: one(users, {
    fields: [userStatusLogs.userId],
    references: [users.id],
  }),
  operator: one(users, {
    fields: [userStatusLogs.operatorId],
    references: [users.id],
  }),
}));

export const songCollaboratorsRelations = relations(songCollaborators, ({one, many}) => ({
    song: one(songs, {
        fields: [songCollaborators.songId],
        references: [songs.id],
    }),
    user: one(users, {
        fields: [songCollaborators.userId],
        references: [users.id],
    }),
    logs: many(collaborationLogs),
}));

export const collaborationLogsRelations = relations(collaborationLogs, ({one}) => ({
    collaborator: one(songCollaborators, {
        fields: [collaborationLogs.collaboratorId],
        references: [songCollaborators.id],
    }),
    operator: one(users, {
        fields: [collaborationLogs.operatorId],
        references: [users.id],
    }),
}));

export const songReplayRequestsRelations = relations(songReplayRequests, ({one}) => ({
    song: one(songs, {
        fields: [songReplayRequests.songId],
        references: [songs.id],
    }),
    user: one(users, {
        fields: [songReplayRequests.userId],
        references: [users.id],
    }),
}));

// 邮件模板表（仅存储自定义覆盖，内置模板在代码中定义）
export const emailTemplates = pgTable('EmailTemplate', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  key: varchar('key', { length: 100 }).notNull(),
  name: varchar('name', { length: 200 }).notNull(),
  subject: varchar('subject', { length: 300 }).notNull(),
  html: text('html').notNull(),
  updatedByUserId: integer('updatedByUserId'),
});

// 导出所有表的类型
export type User = typeof users.$inferSelect;
export type NewUser = typeof users.$inferInsert;
export type Song = typeof songs.$inferSelect;
export type NewSong = typeof songs.$inferInsert;
export type Vote = typeof votes.$inferSelect;
export type NewVote = typeof votes.$inferInsert;
export type Schedule = typeof schedules.$inferSelect;
export type NewSchedule = typeof schedules.$inferInsert;
export type Notification = typeof notifications.$inferSelect;
export type NewNotification = typeof notifications.$inferInsert;
export type NotificationSettings = typeof notificationSettings.$inferSelect;
export type NewNotificationSettings = typeof notificationSettings.$inferInsert;
export type PlayTime = typeof playTimes.$inferSelect;
export type NewPlayTime = typeof playTimes.$inferInsert;
export type Semester = typeof semesters.$inferSelect;
export type NewSemester = typeof semesters.$inferInsert;
export type SystemSettings = typeof systemSettings.$inferSelect;
export type NewSystemSettings = typeof systemSettings.$inferInsert;
export type SongBlacklist = typeof songBlacklists.$inferSelect;
export type NewSongBlacklist = typeof songBlacklists.$inferInsert;
export type ApiKey = typeof apiKeys.$inferSelect;
export type NewApiKey = typeof apiKeys.$inferInsert;
export type ApiKeyPermission = typeof apiKeyPermissions.$inferSelect;
export type NewApiKeyPermission = typeof apiKeyPermissions.$inferInsert;
export type ApiLog = typeof apiLogs.$inferSelect;
export type NewApiLog = typeof apiLogs.$inferInsert;
export type UserStatusLog = typeof userStatusLogs.$inferSelect;
export type NewUserStatusLog = typeof userStatusLogs.$inferInsert;
export type SongCollaborator = typeof songCollaborators.$inferSelect;
export type NewSongCollaborator = typeof songCollaborators.$inferInsert;
export type CollaborationLog = typeof collaborationLogs.$inferSelect;
export type NewCollaborationLog = typeof collaborationLogs.$inferInsert;
export type SongReplayRequest = typeof songReplayRequests.$inferSelect;
export type NewSongReplayRequest = typeof songReplayRequests.$inferInsert;
export type EmailTemplate = typeof emailTemplates.$inferSelect;
export type NewEmailTemplate = typeof emailTemplates.$inferInsert;export type RequestTime = typeof requestTimes.$inferSelect;
export type NewRequestTime = typeof requestTimes.$inferInsert;
export type UserIdentity = typeof userIdentities.$inferSelect;
export type NewUserIdentity = typeof userIdentities.$inferInsert;
// 卡密表
export const cardCodes = pgTable('CardCode', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  updatedAt: timestamp('updatedAt').defaultNow().notNull(),
  code: text('code').notNull().unique(),
  status: cardCodeStatusEnum('status').default('AVAILABLE').notNull(),
  lockedBy: integer('lockedBy').references(() => users.id, { onDelete: 'set null' }),
  lockedAt: timestamp('lockedAt'),
  redeemedBy: integer('redeemedBy').references(() => users.id, { onDelete: 'set null' }),
  redeemedAt: timestamp('redeemedAt'),
  note: text('note'),
});

// 卡密兑换日志表
export const cardCodeRedeemLogs = pgTable('CardCodeRedeemLog', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  cardCodeId: integer('cardCodeId').references(() => cardCodes.id, { onDelete: 'set null' }),
  codeSnapshot: text('codeSnapshot').notNull(),
  redeemedBy: integer('redeemedBy').notNull().references(() => users.id, { onDelete: 'restrict' }),
  redeemedAt: timestamp('redeemedAt').defaultNow().notNull(),
  source: text('source').default('UNKNOWN').notNull(),
  songId: integer('songId').references(() => songs.id, { onDelete: 'set null' })
}, (table) => [
  index('card_code_redeem_log_card_code_id_idx').on(table.cardCodeId)
]);

export type CardCode = typeof cardCodes.$inferSelect;
export type NewCardCode = typeof cardCodes.$inferInsert;

// 自动备份历史记录表
export const backupHistory = pgTable('BackupHistory', {
  id: serial('id').primaryKey(),
  createdAt: timestamp('createdAt').defaultNow().notNull(),
  filename: text('filename').notNull(),
  totalRecords: integer('totalRecords').default(0).notNull(),
  backupSize: integer('backupSize').default(0).notNull(),
  methods: text('methods').notNull(), // JSON: { method: string; success: boolean; error?: string }[]
  success: boolean('success').default(false).notNull(),
  triggeredBy: text('triggeredBy'), // 'api' | 'manual'
}, (table) => [
  index('backup_history_created_at_idx').on(table.createdAt)
]);

export type BackupHistory = typeof backupHistory.$inferSelect;
export type NewBackupHistory = typeof backupHistory.$inferInsert;