feat: library page infinite scroll

backend/src/user-data/library/library.controller.ts

@@ -12,13 +12,14 @@ import {
 import { ApiOkResponse, ApiQuery, ApiTags } from '@nestjs/swagger';
 import { GetAuthToken, UserAccessControl } from 'src/auth/auth.guard';
 import {
-  GetPaginationParams,
+  GetPaginationParams as GetPaginationQuery,
   PaginatedApiOkResponse,
+  PaginationApiQuery,
 } from 'src/common/common.decorator';
 import {
   MediaType,
   PaginatedResponseDto,
-  PaginationParamsDto,
+  PaginationDto,
   SuccessResponseDto,
 } from 'src/common/common.dto';
 import {
@@ -42,9 +43,10 @@ export class LibraryController {
   @ApiQuery({ name: 'type', enum: MyListTypeFilter, required: false })
   @ApiQuery({ name: 'order', enum: MyListOrder, required: false })
   @ApiQuery({ name: 'direction', enum: OrderDirection, required: false })
+  @PaginationApiQuery()
   @PaginatedApiOkResponse(LibraryItemDto)
   async getMyList(
-    @GetPaginationParams() pagination: PaginationParamsDto,
+    @GetPaginationQuery() pagination: PaginationDto,
     @Param('userId') userId: string,
     @Query('status', new ParseEnumPipe(MyListStatusFilter, { optional: true }))
     status?: MyListStatusFilter,
@@ -78,9 +80,10 @@ export class LibraryController {
   @ApiQuery({ name: 'type', enum: CatalogueTypeFilter, required: false })
   @ApiQuery({ name: 'order', required: false })
   @ApiQuery({ name: 'direction', required: false })
+  @PaginationApiQuery()
   @PaginatedApiOkResponse(LibraryItemDto)
   async getCatalogue(
-    @GetPaginationParams() pagination: PaginationParamsDto,
+    @GetPaginationQuery() pagination: PaginationDto,
     @Param('userId') userId: string,
     @Param('sourceId') sourceId: string,
     @GetAuthToken() token: string,
@@ -91,7 +94,7 @@ export class LibraryController {
     @Query('direction')
     direction?: string,
   ): Promise<PaginatedResponseDto<LibraryItemDto>> {
-    const items = this.libraryService.getCatalogueItems({
+    const items = await this.libraryService.getCatalogueItems({
       sourceId,
       token,
       pagination,

backend/src/user-data/library/library.service.ts

@@ -2,7 +2,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import {
   MediaType,
   PaginatedResponseDto,
-  PaginationParamsDto,
+  PaginationDto,
 } from 'src/common/common.dto';
 import { MetadataService } from 'src/metadata/metadata.service';
 import { MediaSourcesService } from 'src/users/media-sources/media-sources.service';
@@ -42,7 +42,7 @@ export class LibraryService {
   /** TODO: decouple librayItem and movie/seriesItem */
   async getMyList(options: {
     userId: string;
-    pagination: PaginationParamsDto;
+    pagination: PaginationDto;
     type?: MyListTypeFilter;
     status?: MyListStatusFilter;
     order?: MyListOrder;
@@ -244,7 +244,7 @@ export class LibraryService {
   async getCatalogueItems(options: {
     sourceId: string;
     token: string;
-    pagination: PaginationParamsDto;
+    pagination: PaginationDto;
     type?: CatalogueTypeFilter;
     order?: string;
     direction?: string;
@@ -260,7 +260,12 @@ export class LibraryService {
 
     const connection = await this.mediaSourceService.getConnection(sourceId);
 
-    if (!connection) return;
+    if (!connection) {
+      console.error(
+        `No connection found for sourceId: ${sourceId}. Please check your media source configuration.`,
+      );
+      throw new Error('No connection found');
+    }
 
     const combined = connection.provider.catalogueProvider.getCatalogue;
     const movies = connection.provider.catalogueProvider.getMovieCatalogue;
@@ -360,6 +365,10 @@ export class LibraryService {
         ),
       };
     }
+
+    throw new Error(
+      `No catalogue provider found for type: ${type}. Please check your media source configuration.`,
+    );
   }
 
   async findByTmdbId(