stripstream/src/lib/services/book.service.ts

import { BaseApiService } from "./base-api.service";
import { KomgaBook } from "@/types/komga";
import { ImageService } from "./image.service";
import { PreferencesService } from "./preferences.service";

export class BookService extends BaseApiService {
  static async getBook(bookId: string): Promise<{ book: KomgaBook; pages: number[] }> {
    try {
      return this.fetchWithCache<{ book: KomgaBook; pages: number[] }>(
        `book-${bookId}`,
        async () => {
          // Récupération des détails du tome
          const book = await this.fetchFromApi<KomgaBook>({ path: `books/${bookId}` });

          // Récupération des pages du tome
          const pages = await this.fetchFromApi<{ number: number }[]>({
            path: `books/${bookId}/pages`,
          });

          return {
            book,
            pages: pages.map((page: any) => page.number),
          };
        },
        "BOOKS"
      );
    } catch (error) {
      return this.handleError(error, "Impossible de récupérer le tome");
    }
  }

  static async updateReadProgress(
    bookId: string,
    page: number,
    completed: boolean = false
  ): Promise<void> {
    try {
      const config = await this.getKomgaConfig();
      const url = this.buildUrl(config, `books/${bookId}/read-progress`);
      const headers = this.getAuthHeaders(config);
      headers.set("Content-Type", "application/json");

      const response = await fetch(url, {
        method: "PATCH",
        headers,
        body: JSON.stringify({ page, completed }),
      });

      if (!response.ok) {
        throw new Error("Erreur lors de la mise à jour de la progression");
      }
    } catch (error) {
      return this.handleError(error, "Impossible de mettre à jour la progression");
    }
  }

  static async deleteReadProgress(bookId: string): Promise<void> {
    try {
      const config = await this.getKomgaConfig();
      const url = this.buildUrl(config, `books/${bookId}/read-progress`);
      const headers = this.getAuthHeaders(config);
      headers.set("Content-Type", "application/json");

      const response = await fetch(url, {
        method: "DELETE",
        headers,
      });

      if (!response.ok) {
        throw new Error("Erreur lors de la suppression de la progression");
      }
    } catch (error) {
      return this.handleError(error, "Impossible de supprimer la progression");
    }
  }

  static async getPage(bookId: string, pageNumber: number): Promise<Response> {
    try {
      // Ajuster le numéro de page pour l'API Komga (zero-based)
      const adjustedPageNumber = pageNumber - 1;
      const response = await ImageService.getImage(
        `books/${bookId}/pages/${adjustedPageNumber}?zero_based=true`
      );
      return new Response(response.buffer, {
        headers: {
          "Content-Type": response.contentType || "image/jpeg",
          "Cache-Control": "public, max-age=31536000, immutable",
        },
      });
    } catch (error) {
      throw this.handleError(error, "Impossible de récupérer la page");
    }
  }

  static async getCover(bookId: string): Promise<Response> {
    try {
      // Récupérer les préférences de l'utilisateur
      const preferences = await PreferencesService.getPreferences();

      // Si l'utilisateur préfère les vignettes, utiliser la miniature
      if (preferences.showThumbnails) {
        const response = await ImageService.getImage(`books/${bookId}/thumbnail`);
        return new Response(response.buffer, {
          headers: {
            "Content-Type": response.contentType || "image/jpeg",
            "Cache-Control": "public, max-age=31536000, immutable",
          },
        });
      }

      // Sinon, récupérer la première page
      return this.getPage(bookId, 1);
    } catch (error) {
      throw this.handleError(error, "Impossible de récupérer la couverture");
    }
  }

  static getPageUrl(bookId: string, pageNumber: number): string {
    return `/api/komga/images/books/${bookId}/pages/${pageNumber}`;
  }

  static getPageThumbnailUrl(bookId: string, pageNumber: number): string {
    return `/api/komga/images/books/${bookId}/pages/${pageNumber}/thumbnail`;
  }

  static async getPageThumbnail(bookId: string, pageNumber: number): Promise<Response> {
    try {
      const response = await ImageService.getImage(
        `books/${bookId}/pages/${pageNumber}/thumbnail?zero_based=true`
      );
      return new Response(response.buffer, {
        headers: {
          "Content-Type": response.contentType || "image/jpeg",
          "Cache-Control": "public, max-age=31536000, immutable",
        },
      });
    } catch (error) {
      throw this.handleError(error, "Impossible de récupérer la miniature de la page");
    }
  }

  static getCoverUrl(bookId: string): string {
    return `/api/komga/images/books/${bookId}/thumbnail`;
  }
}