import {
  users,
  socialPages,
  media,
  posts,
  reelJobs,
  postMedia,
  scheduledPosts,
  aiGenerations,
  cloudinaryConfig,
  openrouterConfig,
  userPagePermissions,
  type User,
  type InsertUser,
  type SocialPage,
  type InsertSocialPage,
  type Media,
  type InsertMedia,
  type Post,
  type InsertPost,
  type PostMedia,
  type ScheduledPost,
  type InsertScheduledPost,
  type AiGeneration,
  type InsertAiGeneration,
  type CloudinaryConfig,
  type InsertCloudinaryConfig,
  type OpenrouterConfig,
  type InsertOpenrouterConfig,
  type UserPagePermission,
  type InsertUserPagePermission,
  musicFavorites,
  type MusicFavorite,
  type InsertMusicFavorite,
  audioTracks,
  type AudioTrack,
  type InsertAudioTrack,
  appConfig,
  type AppConfig,
  tiktokConfig,
  type TiktokConfig,
  type InsertTiktokConfig,
  facebookConfig,
  type FacebookConfig,
  type InsertFacebookConfig,
} from "@shared/schema";
import { db } from "./db";
import { eq, and, or, gte, lte, desc, asc, isNull, isNotNull, inArray, notInArray, getTableColumns, sql, type SQL } from "drizzle-orm";
import { encrypt, decrypt, isEncrypted } from "./utils/encryption";

/**
 * Statuts de publication asynchrone (TikTok) qui ne bougeront plus : inutile de
 * continuer à interroger l'API une fois l'un d'eux atteint.
 */
export const TERMINAL_PUBLISH_STATUSES: string[] = [
  'PUBLISH_COMPLETE',
  'FAILED',
  // Vidéo déposée dans la boîte de réception du créateur : elle attend une action
  // manuelle dans TikTok et n'évoluera plus côté API.
  'SEND_TO_USER_INBOX',
];

/**
 * Déchiffre les tokens d'une page avant de la rendre au reste de l'application.
 * Les services (Facebook, TikTok) manipulent toujours des tokens en clair.
 */
function decryptPageTokens(page: SocialPage): SocialPage {
  return {
    ...page,
    accessToken: decrypt(page.accessToken),
    refreshToken: page.refreshToken ? decrypt(page.refreshToken) : page.refreshToken,
  };
}

/** Bornes temporelles utilisées pour les comparaisons du tableau de bord. */
export interface DashboardStatsRange {
  yesterdayStart: Date;
  yesterdayEnd: Date;
  lastMonth: Date;
}

export interface DashboardStats {
  scheduledPosts: number;
  scheduledPostsLastMonth: number;
  connectedPages: number;
  aiTextsGenerated: number;
  aiTextsYesterday: number;
  mediaStored: number;
}

/**
 * Colonnes renvoyées pour une publication planifiée.
 *
 * On ne sélectionne pas la ligne `social_pages` entière : elle porte les jetons
 * d'accès Facebook et TikTok, qui partaient jusqu'ici dans chaque réponse HTTP
 * — y compris vers le navigateur, qui n'en fait rien.
 */
const SCHEDULED_POST_COLUMNS = {
  ...getTableColumns(scheduledPosts),
  post: {
    id: posts.id,
    userId: posts.userId,
    content: posts.content,
    status: posts.status,
    scheduledFor: posts.scheduledFor,
    aiGenerated: posts.aiGenerated,
    generationStatus: posts.generationStatus,
    generationProgress: posts.generationProgress,
    createdAt: posts.createdAt,
  },
  page: {
    id: socialPages.id,
    pageId: socialPages.pageId,
    pageName: socialPages.pageName,
    platform: socialPages.platform,
    avatarUrl: socialPages.avatarUrl,
  },
};

export interface IStorage {
  // Users
  getUser(id: string): Promise<User | undefined>;
  getUserByUsername(username: string): Promise<User | undefined>;
  getAllUsers(): Promise<User[]>;
  getDashboardStats(userId: string, options: DashboardStatsRange): Promise<DashboardStats>;
  createUser(user: InsertUser): Promise<User>;
  updateUser(id: string, user: Partial<InsertUser>): Promise<User>;
  deleteUser(id: string): Promise<void>;

  // Social Pages
  getSocialPages(userId: string): Promise<SocialPage[]>;
  getAllSocialPages(): Promise<SocialPage[]>;
  getSocialPage(id: string): Promise<SocialPage | undefined>;
  createSocialPage(page: InsertSocialPage): Promise<SocialPage>;
  updateSocialPage(id: string, page: Partial<SocialPage>): Promise<SocialPage>;
  deleteSocialPage(id: string): Promise<void>;

  // Media
  getMedia(userId: string, options?: { limit?: number; offset?: number }): Promise<Media[]>;
  getMediaByIds(ids: string[]): Promise<Media[]>;
  getMediaCount(userId: string): Promise<number>;
  getMediaById(id: string): Promise<Media | undefined>;
  createMedia(media: InsertMedia): Promise<Media>;
  deleteMedia(id: string): Promise<void>;
  getPostMedia(postId: string): Promise<PostMedia[]>;

  // Posts
  getPosts(userId: string): Promise<Post[]>;
  getPost(id: string): Promise<Post | undefined>;
  getPostWithMedia(id: string): Promise<{ post: Post; media: Media[] } | undefined>;
  getOngoingReelPosts(userId: string): Promise<(Post & { generationStep: string | null })[]>;
  createPost(post: InsertPost): Promise<Post>;
  updatePost(id: string, post: Partial<InsertPost>): Promise<Post>;
  updatePostGenerationStatus(id: string, status: string, progress: number, error?: string): Promise<Post>;
  deletePost(id: string): Promise<void>;
  updatePostMedia(postId: string, mediaIds: string[]): Promise<void>;

  // Scheduled Posts
  getScheduledPosts(userId: string, startDate?: Date, endDate?: Date): Promise<ScheduledPost[]>;
  getScheduledPostsByPages(pageIds: string[], startDate?: Date, endDate?: Date): Promise<ScheduledPost[]>;
  getScheduledPost(id: string): Promise<ScheduledPost | undefined>;
  getScheduledPostsByPost(postId: string): Promise<ScheduledPost[]>;
  createScheduledPost(scheduledPost: InsertScheduledPost): Promise<ScheduledPost>;
  updateScheduledPost(id: string, scheduledPost: Partial<ScheduledPost>): Promise<ScheduledPost>;
  deleteScheduledPost(id: string): Promise<void>;
  getPendingScheduledPosts(): Promise<ScheduledPost[]>;
  getScheduledPostsAwaitingPublishStatus(): Promise<ScheduledPost[]>;

  // AI Generations
  getAiGenerations(userId: string): Promise<AiGeneration[]>;
  createAiGeneration(generation: InsertAiGeneration): Promise<AiGeneration>;

  // TikTok Config
  getTiktokConfig(): Promise<TiktokConfig | undefined>;
  upsertTiktokConfig(config: Partial<InsertTiktokConfig>): Promise<TiktokConfig>;
  getFacebookConfig(): Promise<FacebookConfig | undefined>;
  upsertFacebookConfig(config: Partial<InsertFacebookConfig>): Promise<FacebookConfig>;

  // Cloudinary Config
  getCloudinaryConfig(): Promise<CloudinaryConfig | undefined>;
  createCloudinaryConfig(config: InsertCloudinaryConfig): Promise<CloudinaryConfig>;
  updateCloudinaryConfig(config: Partial<InsertCloudinaryConfig>): Promise<CloudinaryConfig>;

  // OpenRouter Config
  getOpenrouterConfig(userId: string): Promise<OpenrouterConfig | undefined>;
  getAnyOpenrouterConfig(): Promise<OpenrouterConfig | undefined>;
  createOpenrouterConfig(config: InsertOpenrouterConfig): Promise<OpenrouterConfig>;
  updateOpenrouterConfig(userId: string, config: Partial<InsertOpenrouterConfig>): Promise<OpenrouterConfig>;

  // User Page Permissions
  getUserPagePermissions(userId: string): Promise<UserPagePermission[]>;
  getPagePermissions(pageId: string): Promise<UserPagePermission[]>;
  createPagePermission(permission: InsertUserPagePermission): Promise<UserPagePermission>;
  deletePagePermission(userId: string, pageId: string): Promise<void>;
  deleteAllUserPagePermissions(userId: string): Promise<void>;
  getUserAccessiblePages(userId: string): Promise<SocialPage[]>;

  // Music Favorites
  getMusicFavorites(userId: string): Promise<MusicFavorite[]>;
  addMusicFavorite(favorite: InsertMusicFavorite): Promise<MusicFavorite>;
  removeMusicFavorite(userId: string, trackId: string): Promise<void>;
  isMusicFavorite(userId: string, trackId: string): Promise<boolean>;

  // Audio Tracks
  getAudioTracks(): Promise<AudioTrack[]>;
  // Audio Tracks
  getAudioTrack(id: string): Promise<AudioTrack | undefined>;
  createAudioTrack(track: InsertAudioTrack): Promise<AudioTrack>;
  deleteAudioTrack(id: string): Promise<void>;

  // App Config
  getAppConfig(): Promise<AppConfig | undefined>;
  upsertAppConfig(data: Partial<Pick<AppConfig, 'externalApiKey' | 'geminiApiKey'>>): Promise<AppConfig>;
}

export class DatabaseStorage implements IStorage {
  // Users
  async getUser(id: string): Promise<User | undefined> {
    const [user] = await db.select().from(users).where(eq(users.id, id));
    return user || undefined;
  }

  async getUserByUsername(username: string): Promise<User | undefined> {
    const [user] = await db.select().from(users).where(eq(users.username, username));
    return user || undefined;
  }

  async getAllUsers(): Promise<User[]> {
    return await db.select().from(users);
  }

  async createUser(insertUser: InsertUser): Promise<User> {
    const [user] = await db.insert(users).values(insertUser).returning();
    return user;
  }

  async updateUser(id: string, updateData: Partial<InsertUser>): Promise<User> {
    const [updated] = await db.update(users).set(updateData).where(eq(users.id, id)).returning();
    return updated;
  }

  async deleteUser(id: string): Promise<void> {
    await db.delete(users).where(eq(users.id, id));
  }

  /**
   * Compteurs du tableau de bord.
   *
   * Comptés en SQL : les charger en mémoire revenait à lire quatre tables
   * entières — tous les posts, toutes les pages, tous les médias, toutes les
   * générations — pour n'en garder que le nombre de lignes.
   */
  async getDashboardStats(userId: string, range: DashboardStatsRange): Promise<DashboardStats> {
    const [postCounts, generationCounts, pageCount, mediaCount] = await Promise.all([
      db
        .select({
          scheduled: sql<string>`count(*) filter (where ${posts.status} = 'scheduled')`,
          scheduledLastMonth: sql<string>`count(*) filter (where ${posts.status} = 'scheduled' and ${posts.createdAt} < ${range.lastMonth})`,
        })
        .from(posts)
        .where(eq(posts.userId, userId)),
      db
        .select({
          total: sql<string>`count(*)`,
          yesterday: sql<string>`count(*) filter (where ${aiGenerations.createdAt} >= ${range.yesterdayStart} and ${aiGenerations.createdAt} < ${range.yesterdayEnd})`,
        })
        .from(aiGenerations)
        .where(eq(aiGenerations.userId, userId)),
      db.select({ total: sql<string>`count(*)` }).from(socialPages).where(eq(socialPages.userId, userId)),
      db.select({ total: sql<string>`count(*)` }).from(media).where(eq(media.userId, userId)),
    ]);

    return {
      scheduledPosts: Number(postCounts[0]?.scheduled ?? 0),
      scheduledPostsLastMonth: Number(postCounts[0]?.scheduledLastMonth ?? 0),
      connectedPages: Number(pageCount[0]?.total ?? 0),
      aiTextsGenerated: Number(generationCounts[0]?.total ?? 0),
      aiTextsYesterday: Number(generationCounts[0]?.yesterday ?? 0),
      mediaStored: Number(mediaCount[0]?.total ?? 0),
    };
  }

  // Social Pages
  async getSocialPages(userId: string): Promise<SocialPage[]> {
    const pages = await db.select().from(socialPages).where(eq(socialPages.userId, userId));
    return pages.map(page => decryptPageTokens(page));
  }

  /**
   * Toutes les pages de l'instance, pour les vues d'administration.
   * Remplace un `getAllUsers()` suivi d'une requête par utilisateur.
   */
  async getAllSocialPages(): Promise<SocialPage[]> {
    const pages = await db.select().from(socialPages);
    return pages.map(page => decryptPageTokens(page));
  }

  async getSocialPage(id: string): Promise<SocialPage | undefined> {
    const [page] = await db.select().from(socialPages).where(eq(socialPages.id, id));
    return page ? decryptPageTokens(page) : undefined;
  }

  async createSocialPage(page: InsertSocialPage): Promise<SocialPage> {
    // Chiffrer les tokens avant stockage
    const encryptedPage = {
      ...page,
      accessToken: encrypt(page.accessToken),
      ...(page.refreshToken ? { refreshToken: encrypt(page.refreshToken) } : {}),
    };
    const [newPage] = await db.insert(socialPages).values(encryptedPage).returning();
    return decryptPageTokens(newPage);
  }

  async updateSocialPage(id: string, page: Partial<SocialPage>): Promise<SocialPage> {
    // Chiffrer les tokens présents dans la mise à jour
    const updateData: Partial<SocialPage> = { ...page };
    if (page.accessToken) {
      updateData.accessToken = encrypt(page.accessToken);
    }
    if (page.refreshToken) {
      updateData.refreshToken = encrypt(page.refreshToken);
    }
    const [updated] = await db.update(socialPages).set(updateData).where(eq(socialPages.id, id)).returning();
    return decryptPageTokens(updated);
  }

  async deleteSocialPage(id: string): Promise<void> {
    await db.delete(socialPages).where(eq(socialPages.id, id));
  }

  // Media
  /**
   * Médias d'un utilisateur, du plus récent au plus ancien.
   * `limit` sert aux écrans qui n'en affichent qu'une poignée : sans lui, la
   * médiathèque entière transitait pour en montrer cinq.
   */
  async getMedia(userId: string, options: { limit?: number; offset?: number } = {}): Promise<Media[]> {
    let query = db
      .select()
      .from(media)
      .where(eq(media.userId, userId))
      .orderBy(desc(media.createdAt))
      .$dynamic();

    if (options.limit !== undefined) query = query.limit(options.limit);
    if (options.offset !== undefined) query = query.offset(options.offset);

    return await query;
  }

  async getMediaByIds(ids: string[]): Promise<Media[]> {
    if (ids.length === 0) return [];
    return await db.select().from(media).where(inArray(media.id, ids));
  }

  /** Total de médias, pour que la pagination sache où elle s'arrête. */
  async getMediaCount(userId: string): Promise<number> {
    const [row] = await db
      .select({ total: sql<string>`count(*)` })
      .from(media)
      .where(eq(media.userId, userId));
    return Number(row?.total ?? 0);
  }

  async getMediaById(id: string): Promise<Media | undefined> {
    const [mediaItem] = await db.select().from(media).where(eq(media.id, id));
    return mediaItem || undefined;
  }

  async createMedia(mediaItem: InsertMedia): Promise<Media> {
    const [newMedia] = await db.insert(media).values(mediaItem).returning();
    return newMedia;
  }

  async deleteMedia(id: string): Promise<void> {
    await db.delete(media).where(eq(media.id, id));
  }

  async getPostMedia(postId: string): Promise<PostMedia[]> {
    return await db.select().from(postMedia).where(eq(postMedia.postId, postId)).orderBy(asc(postMedia.displayOrder));
  }

  // Posts
  async getPosts(userId: string): Promise<Post[]> {
    return await db.select().from(posts).where(eq(posts.userId, userId)).orderBy(desc(posts.createdAt));
  }

  async getPost(id: string): Promise<Post | undefined> {
    const [post] = await db.select().from(posts).where(eq(posts.id, id));
    return post || undefined;
  }

  async getPostWithMedia(id: string): Promise<{ post: Post; media: Media[] } | undefined> {
    const post = await this.getPost(id);
    if (!post) return undefined;

    const postMediaLinks = await this.getPostMedia(id);

    // Une seule requête pour tous les médias, puis remise dans l'ordre
    // d'affichage : une requête par média rendait le coût proportionnel au
    // nombre de visuels du post.
    const byId = new Map(
      (await this.getMediaByIds(postMediaLinks.map(link => link.mediaId))).map(item => [item.id, item])
    );
    const mediaItems = postMediaLinks
      .map(link => byId.get(link.mediaId))
      .filter((item): item is Media => item !== undefined);

    return { post, media: mediaItems };
  }

  async createPost(post: InsertPost): Promise<Post> {
    const [newPost] = await db.insert(posts).values(post).returning();
    return newPost;
  }

  async updatePost(id: string, post: Partial<InsertPost>): Promise<Post> {
    const [updated] = await db.update(posts).set({ ...post, updatedAt: new Date() }).where(eq(posts.id, id)).returning();
    return updated;
  }

  async deletePost(id: string): Promise<void> {
    await db.delete(posts).where(eq(posts.id, id));
  }

  async updatePostGenerationStatus(
    id: string,
    status: string,
    progress: number,
    error?: string
  ): Promise<Post> {
    const updateData: Record<string, unknown> = {
      generationStatus: status,
      generationProgress: progress,
      updatedAt: new Date(),
    };
    if (error !== undefined) {
      updateData.generationError = error;
    }
    const [updated] = await db
      .update(posts)
      .set(updateData)
      .where(eq(posts.id, id))
      .returning();
    return updated;
  }

  async updatePostMedia(postId: string, mediaIds: string[]): Promise<void> {
    await db.delete(postMedia).where(eq(postMedia.postId, postId));

    if (mediaIds.length > 0) {
      const postMediaEntries = mediaIds.map((mediaId, index) => ({
        postId,
        mediaId,
        displayOrder: index,
      }));
      await db.insert(postMedia).values(postMediaEntries);
    }
  }

  // Scheduled Posts
  async getScheduledPosts(userId: string, startDate?: Date, endDate?: Date): Promise<any[]> {
    return this.queryScheduledPosts(eq(posts.userId, userId), startDate, endDate);
  }

  async getScheduledPostsByPages(pageIds: string[], startDate?: Date, endDate?: Date): Promise<any[]> {
    if (pageIds.length === 0) {
      return [];
    }
    return this.queryScheduledPosts(inArray(scheduledPosts.pageId, pageIds), startDate, endDate);
  }

  /**
   * Publications planifiées, avec le post et la page auxquels elles se rapportent.
   *
   * La période est filtrée en SQL : la charger entière pour la filtrer en
   * mémoire revenait à lire tout l'historique à chaque affichage du calendrier.
   */
  private async queryScheduledPosts(
    scope: SQL,
    startDate?: Date,
    endDate?: Date
  ): Promise<any[]> {
    const conditions: SQL[] = [scope];
    if (startDate) conditions.push(gte(scheduledPosts.scheduledAt, startDate));
    if (endDate) conditions.push(lte(scheduledPosts.scheduledAt, endDate));

    const rows = await db
      .select(SCHEDULED_POST_COLUMNS)
      .from(scheduledPosts)
      .innerJoin(posts, eq(scheduledPosts.postId, posts.id))
      .leftJoin(socialPages, eq(scheduledPosts.pageId, socialPages.id))
      .where(conditions.length === 1 ? conditions[0] : and(...conditions))
      .orderBy(desc(scheduledPosts.scheduledAt));

    // La jointure externe renvoie un objet aux champs nuls quand la page a été
    // supprimée ; les appelants attendent `page: null` dans ce cas.
    return rows.map(row => ({ ...row, page: row.page?.id ? row.page : null }));
  }

  async getScheduledPost(id: string): Promise<ScheduledPost | undefined> {
    const [scheduledPost] = await db.select().from(scheduledPosts).where(eq(scheduledPosts.id, id));
    return scheduledPost || undefined;
  }

  async getScheduledPostsByPost(postId: string): Promise<ScheduledPost[]> {
    return await db.select().from(scheduledPosts).where(eq(scheduledPosts.postId, postId));
  }

  async createScheduledPost(scheduledPost: InsertScheduledPost): Promise<ScheduledPost> {
    const [newScheduledPost] = await db.insert(scheduledPosts).values(scheduledPost).returning();
    return newScheduledPost;
  }

  async updateScheduledPost(id: string, scheduledPost: Partial<ScheduledPost>): Promise<ScheduledPost> {
    const [updated] = await db.update(scheduledPosts).set(scheduledPost).where(eq(scheduledPosts.id, id)).returning();
    return updated;
  }

  async deleteScheduledPost(id: string): Promise<void> {
    await db.delete(scheduledPosts).where(eq(scheduledPosts.id, id));
  }

  async getPendingScheduledPosts(): Promise<ScheduledPost[]> {
    const now = new Date();
    const results = await db
      .select()
      .from(scheduledPosts)
      .where(
        and(
          isNull(scheduledPosts.publishedAt),
          lte(scheduledPosts.scheduledAt, now)
        )
      );
    return results;
  }

  /**
   * Publications déjà envoyées à TikTok dont le statut final n'est pas encore
   * connu (l'API répond de façon asynchrone via un publish_id).
   */
  async getScheduledPostsAwaitingPublishStatus(): Promise<ScheduledPost[]> {
    return await db
      .select()
      .from(scheduledPosts)
      .where(
        and(
          isNotNull(scheduledPosts.publishId),
          notInArray(scheduledPosts.publishStatus, TERMINAL_PUBLISH_STATUSES)
        )
      );
  }

  /**
   * Reels dont la génération est en cours, plus ceux qui ont échoué dans les
   * dernières 24 h (pour que l'utilisateur en voie la cause), avec l'étape
   * courante du rendu. Filtré en SQL : la route est interrogée toutes les
   * trois secondes pendant un rendu.
   */
  async getOngoingReelPosts(userId: string): Promise<(Post & { generationStep: string | null })[]> {
    const since = new Date(Date.now() - 24 * 60 * 60 * 1000);
    const rows = await db
      .select()
      .from(posts)
      .where(
        and(
          eq(posts.userId, userId),
          or(
            inArray(posts.generationStatus, ['processing', 'pending']),
            and(eq(posts.generationStatus, 'failed'), gte(posts.updatedAt, since), isNotNull(posts.generationError)),
          ),
        )
      )
      .orderBy(desc(posts.createdAt));
    if (rows.length === 0) return [];

    const jobs = await db
      .select({ postId: reelJobs.postId, step: reelJobs.step })
      .from(reelJobs)
      .where(inArray(reelJobs.postId, rows.map((p) => p.id)));
    const stepByPost = new Map(jobs.map((j) => [j.postId, j.step]));
    return rows.map((post) => ({ ...post, generationStep: stepByPost.get(post.id) ?? null }));
  }

  // AI Generations
  async getAiGenerations(userId: string): Promise<AiGeneration[]> {
    return await db.select().from(aiGenerations).where(eq(aiGenerations.userId, userId)).orderBy(desc(aiGenerations.createdAt));
  }

  async createAiGeneration(generation: InsertAiGeneration): Promise<AiGeneration> {
    const [newGeneration] = await db.insert(aiGenerations).values(generation).returning();
    return newGeneration;
  }

  // Cloudinary Config
  async getCloudinaryConfig(): Promise<CloudinaryConfig | undefined> {
    const [config] = await db.select().from(cloudinaryConfig).limit(1);
    return config || undefined;
  }

  async createCloudinaryConfig(config: InsertCloudinaryConfig): Promise<CloudinaryConfig> {
    const [newConfig] = await db.insert(cloudinaryConfig).values(config).returning();
    return newConfig;
  }

  async updateCloudinaryConfig(config: Partial<InsertCloudinaryConfig>): Promise<CloudinaryConfig> {
    const existingConfig = await this.getCloudinaryConfig();
    if (!existingConfig) throw new Error("Cloudinary config not initialized");

    const [updated] = await db.update(cloudinaryConfig)
      .set({ ...config, updatedAt: new Date() })
      .where(eq(cloudinaryConfig.id, existingConfig.id))
      .returning();
    return updated;
  }

  // OpenRouter Config
  async getOpenrouterConfig(userId: string): Promise<OpenrouterConfig | undefined> {
    const [config] = await db.select().from(openrouterConfig).where(eq(openrouterConfig.userId, userId));
    return config || undefined;
  }

  async getAnyOpenrouterConfig(): Promise<OpenrouterConfig | undefined> {
    const [config] = await db.select().from(openrouterConfig).orderBy(desc(openrouterConfig.updatedAt)).limit(1);
    return config || undefined;
  }

  async createOpenrouterConfig(config: InsertOpenrouterConfig): Promise<OpenrouterConfig> {
    const [newConfig] = await db.insert(openrouterConfig).values(config).returning();
    return newConfig;
  }

  async updateOpenrouterConfig(userId: string, config: Partial<InsertOpenrouterConfig>): Promise<OpenrouterConfig> {
    const [updated] = await db.update(openrouterConfig)
      .set({ ...config, updatedAt: new Date() })
      .where(eq(openrouterConfig.userId, userId))
      .returning();
    return updated;
  }

  // User Page Permissions
  async getUserPagePermissions(userId: string): Promise<UserPagePermission[]> {
    return await db.select().from(userPagePermissions).where(eq(userPagePermissions.userId, userId));
  }

  async getPagePermissions(pageId: string): Promise<UserPagePermission[]> {
    return await db.select().from(userPagePermissions).where(eq(userPagePermissions.pageId, pageId));
  }

  async createPagePermission(permission: InsertUserPagePermission): Promise<UserPagePermission> {
    const [newPermission] = await db.insert(userPagePermissions).values(permission).returning();
    return newPermission;
  }

  async deletePagePermission(userId: string, pageId: string): Promise<void> {
    await db.delete(userPagePermissions).where(
      and(
        eq(userPagePermissions.userId, userId),
        eq(userPagePermissions.pageId, pageId)
      )
    );
  }

  async deleteAllUserPagePermissions(userId: string): Promise<void> {
    await db.delete(userPagePermissions).where(eq(userPagePermissions.userId, userId));
  }

  async getUserAccessiblePages(userId: string): Promise<SocialPage[]> {
    const permissions = await db
      .select()
      .from(userPagePermissions)
      .innerJoin(socialPages, eq(userPagePermissions.pageId, socialPages.id))
      .where(eq(userPagePermissions.userId, userId));

    return permissions.map(p => p.social_pages);
  }

  // Music Favorites
  async getMusicFavorites(userId: string): Promise<MusicFavorite[]> {
    return db.select().from(musicFavorites)
      .where(eq(musicFavorites.userId, userId))
      .orderBy(desc(musicFavorites.createdAt));
  }

  async addMusicFavorite(favorite: InsertMusicFavorite): Promise<MusicFavorite> {
    const [created] = await db.insert(musicFavorites).values(favorite).returning();
    return created;
  }

  async removeMusicFavorite(userId: string, trackId: string): Promise<void> {
    await db.delete(musicFavorites).where(
      and(
        eq(musicFavorites.userId, userId),
        eq(musicFavorites.trackId, trackId)
      )
    );
  }

  async isMusicFavorite(userId: string, trackId: string): Promise<boolean> {
    const [fav] = await db.select().from(musicFavorites).where(
      and(
        eq(musicFavorites.userId, userId),
        eq(musicFavorites.trackId, trackId)
      )
    );
    return !!fav;
  }

  // Audio Tracks
  async getAudioTracks(): Promise<AudioTrack[]> {
    return db.select().from(audioTracks).orderBy(desc(audioTracks.createdAt));
  }

  async getAudioTrack(id: string): Promise<AudioTrack | undefined> {
    const [track] = await db.select().from(audioTracks).where(eq(audioTracks.id, id));
    return track || undefined;
  }

  async createAudioTrack(track: InsertAudioTrack): Promise<AudioTrack> {
    const [newTrack] = await db.insert(audioTracks).values(track).returning();
    return newTrack;
  }

  async deleteAudioTrack(id: string): Promise<void> {
    await db.delete(audioTracks).where(eq(audioTracks.id, id));
  }

  // App Config
  async getAppConfig(): Promise<AppConfig | undefined> {
    const [config] = await db.select().from(appConfig).limit(1);
    return config || undefined;
  }

  // Facebook Config (application développeur, globale à l'instance)
  async getFacebookConfig(): Promise<FacebookConfig | undefined> {
    const [config] = await db.select().from(facebookConfig).limit(1);
    if (!config) return undefined;
    return { ...config, appSecret: decrypt(config.appSecret) };
  }

  async upsertFacebookConfig(data: Partial<InsertFacebookConfig>): Promise<FacebookConfig> {
    const values: Partial<FacebookConfig> = { ...data };
    if (data.appSecret) {
      values.appSecret = encrypt(data.appSecret);
    }

    const [existing] = await db.select().from(facebookConfig).limit(1);
    if (existing) {
      const [updated] = await db.update(facebookConfig)
        .set({ ...values, updatedAt: new Date() })
        .where(eq(facebookConfig.id, existing.id))
        .returning();
      return { ...updated, appSecret: decrypt(updated.appSecret) };
    }

    if (!values.appId || !values.appSecret) {
      throw new Error("L'App ID et l'App Secret Facebook sont requis");
    }

    const [created] = await db.insert(facebookConfig)
      .values({ appId: values.appId, appSecret: values.appSecret })
      .returning();
    return { ...created, appSecret: decrypt(created.appSecret) };
  }

  // TikTok Config
  async getTiktokConfig(): Promise<TiktokConfig | undefined> {
    const [config] = await db.select().from(tiktokConfig).limit(1);
    if (!config) return undefined;
    return { ...config, clientSecret: decrypt(config.clientSecret) };
  }

  async upsertTiktokConfig(data: Partial<InsertTiktokConfig>): Promise<TiktokConfig> {
    const values: Partial<TiktokConfig> = { ...data };
    if (data.clientSecret) {
      values.clientSecret = encrypt(data.clientSecret);
    }

    const [existing] = await db.select().from(tiktokConfig).limit(1);
    if (existing) {
      const [updated] = await db.update(tiktokConfig)
        .set({ ...values, updatedAt: new Date() })
        .where(eq(tiktokConfig.id, existing.id))
        .returning();
      return { ...updated, clientSecret: decrypt(updated.clientSecret) };
    }

    if (!values.clientKey || !values.clientSecret) {
      throw new Error("Le client key et le client secret TikTok sont requis");
    }

    const [created] = await db.insert(tiktokConfig)
      .values({ clientKey: values.clientKey, clientSecret: values.clientSecret })
      .returning();
    return { ...created, clientSecret: decrypt(created.clientSecret) };
  }

  async upsertAppConfig(data: Partial<Pick<AppConfig, 'externalApiKey' | 'geminiApiKey'>>): Promise<AppConfig> {
    const existing = await this.getAppConfig();
    if (existing) {
      const [updated] = await db.update(appConfig)
        .set({ ...data, updatedAt: new Date() })
        .where(eq(appConfig.id, existing.id))
        .returning();
      return updated;
    }
    const [created] = await db.insert(appConfig).values(data).returning();
    return created;
  }
}

export const storage = new DatabaseStorage();