refactor: made project service to use pagination

src/modules/task-manager/providers/project.service.ts

@@ -1,12 +1,15 @@
-import { BadRequestException, Injectable, NotFoundException } from "@nestjs/common";
-import { InjectRepository } from "@nestjs/typeorm";
-import { In, Repository } from "typeorm";
-import { ProjectRepository } from "../repositories/project.repository";
-import { TMProject } from "../entities/project.entity";
-import { CreateProjectDto } from "../dto/project/create-project.dto";
-import { UpdateProjectDto } from "../dto/project/update-project.dto";
-import { User } from "../../users/entities/user.entity";
-import { WorkspaceRepository } from "../repositories/workspace.repository";
+import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { In, Repository } from 'typeorm';
+import { ProjectRepository } from '../repositories/project.repository';
+import { WorkspaceRepository } from '../repositories/workspace.repository';
+import { TMProject } from '../entities/project.entity';
+import { CreateProjectDto } from '../dto/project/create-project.dto';
+import { UpdateProjectDto } from '../dto/project/update-project.dto';
+import { PaginationDto } from '../../../common/DTO/pagination.dto';
+import { PaginatedResult } from '../../../common/interfaces/paginated-result.interface';
+import { buildPageFormat } from '../../../common/helpers/pagination.helper';
+import { User } from '../../users/entities/user.entity';
 
 @Injectable()
 export class ProjectService {
@@ -17,12 +20,34 @@ export class ProjectService {
     private readonly userRepository: Repository<User>,
   ) {}
 
-  findAll(): Promise<TMProject[]> {
-    return this.projectRepository.findAll();
+  async findAll(pagination: PaginationDto, baseUrl: string): Promise<PaginatedResult<TMProject>> {
+    const page = pagination.page ?? 1;
+    const limit = pagination.limit ?? 10;
+    const skip = (page - 1) * limit;
+
+    const [data, totalItems] = await this.projectRepository.findAll(skip, limit);
+
+    return {
+      data,
+      meta: buildPageFormat(page, limit, totalItems, baseUrl),
+    };
   }
 
-  findByWorkspace(workspaceId: string): Promise<TMProject[]> {
-    return this.projectRepository.findByWorkspace(workspaceId);
+  async findByWorkspace(
+    workspaceId: string,
+    pagination: PaginationDto,
+    baseUrl: string,
+  ): Promise<PaginatedResult<TMProject>> {
+    const page = pagination.page ?? 1;
+    const limit = pagination.limit ?? 10;
+    const skip = (page - 1) * limit;
+
+    const [data, totalItems] = await this.projectRepository.findByWorkspace(workspaceId, skip, limit);
+
+    return {
+      data,
+      meta: buildPageFormat(page, limit, totalItems, baseUrl),
+    };
   }
 
   async findOne(id: string): Promise<TMProject> {
@@ -46,7 +71,9 @@ export class ProjectService {
       const workspaceUserIds = workspace.users.map((u) => u.id);
       const invalidUsers = userIds.filter((id) => !workspaceUserIds.includes(id));
       if (invalidUsers.length) {
-        throw new BadRequestException(`Users [${invalidUsers.join(", ")}] are not members of this workspace`);
+        throw new BadRequestException(
+          `Users [${invalidUsers.join(', ')}] are not members of this workspace`,
+        );
       }
       project.users = await this.userRepository.findBy({ id: In(userIds) });
     }
@@ -72,7 +99,9 @@ export class ProjectService {
         const workspaceUserIds = workspace.users.map((u) => u.id);
         const invalidUsers = userIds.filter((uid) => !workspaceUserIds.includes(uid));
         if (invalidUsers.length) {
-          throw new BadRequestException(`Users [${invalidUsers.join(", ")}] are not members of this workspace`);
+          throw new BadRequestException(
+            `Users [${invalidUsers.join(', ')}] are not members of this workspace`,
+          );
         }
         project.users = await this.userRepository.findBy({ id: In(userIds) });
       } else {
@@ -86,7 +115,6 @@ export class ProjectService {
   async remove(id: string): Promise<TMProject> {
     const project = await this.findOne(id);
     await this.projectRepository.delete(id);
-
     return project;
   }
-}
+}