feat: add student favourtie course endpoint

apps/api/src/app.module.ts

@@ -18,6 +18,7 @@ import { StagingGuard } from "./common/guards/staging.guard";
 import { HealthModule } from "./health/health.module";
 import { ScheduleModule } from "@nestjs/schedule";
 import { CoursesModule } from "./courses/courses.module";
+import { StudentFavouritedCoursesModule } from "./studentFavouritedCourses/studentFavouritedCourses.module";
 
 @Module({
   imports: [
@@ -62,6 +63,7 @@ import { CoursesModule } from "./courses/courses.module";
       (env) => env.NODE_ENV !== "test",
     ),
     CoursesModule,
+    StudentFavouritedCoursesModule,
   ],
   controllers: [],
   providers: [

apps/api/src/courses/courses.service.ts

@@ -17,6 +17,7 @@ import {
   users,
 } from "../storage/schema";
 import { getSortOptions } from "src/common/helpers/getSortOptions";
+import { Status } from "src/storage/schema/utils";
 
 @Injectable()
 export class CoursesService {
@@ -170,7 +171,7 @@ export class CoursesService {
   }
 
   private getFiltersConditions(filters: CoursesFilterSchema) {
-    const conditions = [eq(courses.state, "published")];
+    const conditions = [eq(courses.state, Status.published.key)];
     if (filters.title) {
       conditions.push(
         like(categories.title, `%${filters.title.toLowerCase()}%`),

apps/api/src/storage/schema/utils.ts

@@ -29,6 +29,6 @@ export const timestamps = {
 export const archived = boolean("archived").default(false).notNull();
 
 export const Status = {
-  draft: "Draft",
-  published: "Published",
+  draft: { key: "draft", value: "Draft" },
+  published: { key: "published", value: "Published" },
 } as const;

apps/api/src/studentFavouritedCourses/api/studentFavouritedCourses.controller.ts

@@ -0,0 +1,53 @@
+import { Body, Controller, Delete, Post, Query } from "@nestjs/common";
+import { Validate } from "nestjs-typebox";
+import { BaseResponse, nullResponse, UUIDSchema } from "src/common";
+import { CurrentUser } from "src/common/decorators/user.decorator";
+import { StudentFavouritedCoursesService } from "../studentFavouritedCourses.service";
+import {
+  createFavouritedCourseSchema,
+  CreateFavouritedCourseSchema,
+} from "../schemas/createFavouritedCourse.schema";
+
+@Controller("studentFavouritedCourses")
+export class StudentFavouritedCoursesController {
+  constructor(
+    private readonly studentFavouritedCoursesService: StudentFavouritedCoursesService,
+  ) {}
+
+  @Post()
+  @Validate({
+    request: [{ type: "body", schema: createFavouritedCourseSchema }],
+  })
+  async createFavouritedCourse(
+    @Body() data: CreateFavouritedCourseSchema,
+    @CurrentUser() currentUser: { userId: string },
+  ): Promise<BaseResponse<{ message: string }>> {
+    await this.studentFavouritedCoursesService.createFavouritedCourseForUser(
+      data.courseId,
+      currentUser.userId,
+    );
+
+    return new BaseResponse({
+      message: "Favourite course created successfully",
+    });
+  }
+
+  @Delete()
+  @Validate({
+    response: nullResponse(),
+    request: [{ type: "query", name: "id", schema: UUIDSchema }],
+  })
+  async deleteFavouritedCourseForUser(
+    @Query("id") id: string,
+    @CurrentUser() currentUser: { userId: string },
+  ): Promise<null> {
+    console.log(id, currentUser.userId);
+
+    await this.studentFavouritedCoursesService.deleteFavouritedCourseForUser(
+      id,
+      currentUser.userId,
+    );
+
+    return null;
+  }
+}

apps/api/src/studentFavouritedCourses/schemas/course.schema.ts

@@ -0,0 +1,16 @@
+import { Type, Static } from "@sinclair/typebox";
+import { UUIDSchema } from "src/common";
+
+export const allCoursesSchema = Type.Array(
+  Type.Object({
+    id: UUIDSchema,
+    title: Type.String(),
+    imageUrl: Type.Union([Type.String(), Type.Null()]),
+    author: Type.String(),
+    category: Type.String(),
+    courseLessonCount: Type.Number(),
+    enrolledParticipantCount: Type.Number(),
+  }),
+);
+
+export type AllCoursesResponse = Static<typeof allCoursesSchema>;

apps/api/src/studentFavouritedCourses/schemas/createFavouritedCourse.schema.ts

@@ -0,0 +1,10 @@
+import { Static, Type } from "@sinclair/typebox";
+import { UUIDSchema } from "src/common";
+
+export const createFavouritedCourseSchema = Type.Object({
+  courseId: UUIDSchema,
+});
+
+export type CreateFavouritedCourseSchema = Static<
+  typeof createFavouritedCourseSchema
+>;

apps/api/src/studentFavouritedCourses/studentFavouritedCourses.module.ts

@@ -0,0 +1,12 @@
+import { Module } from "@nestjs/common";
+
+import { StudentFavouritedCoursesService } from "./studentFavouritedCourses.service";
+import { StudentFavouritedCoursesController } from "./api/studentFavouritedCourses.controller";
+
+@Module({
+  imports: [],
+  controllers: [StudentFavouritedCoursesController],
+  providers: [StudentFavouritedCoursesService],
+  exports: [],
+})
+export class StudentFavouritedCoursesModule {}

apps/api/src/studentFavouritedCourses/studentFavouritedCourses.service.ts

@@ -0,0 +1,61 @@
+import {
+  ConflictException,
+  Inject,
+  Injectable,
+  NotFoundException,
+} from "@nestjs/common";
+import { and, eq } from "drizzle-orm";
+import { DatabasePg } from "src/common";
+import { courses, studentFavouritedCourses } from "src/storage/schema";
+import { Status } from "src/storage/schema/utils";
+
+@Injectable()
+export class StudentFavouritedCoursesService {
+  constructor(@Inject("DB") private readonly db: DatabasePg) {}
+
+  async createFavouritedCourseForUser(courseId: string, userId: string) {
+    const [course] = await this.db
+      .select()
+      .from(courses)
+      .where(
+        and(eq(courses.id, courseId), eq(courses.state, Status.published.key)),
+      );
+    if (!course) {
+      throw new NotFoundException("Course not found");
+    }
+
+    const [existingRecord] = await this.db
+      .select()
+      .from(studentFavouritedCourses)
+      .where(
+        and(
+          eq(studentFavouritedCourses.courseId, courseId),
+          eq(studentFavouritedCourses.studentId, userId),
+        ),
+      );
+    if (existingRecord) {
+      throw new ConflictException("Favourite course already exists");
+    }
+
+    await this.db
+      .insert(studentFavouritedCourses)
+      .values({ courseId: courseId, studentId: userId })
+      .returning();
+  }
+
+  async deleteFavouritedCourseForUser(id: string, userId: string) {
+    const [deletedFavouritedCourse] = await this.db
+      .delete(studentFavouritedCourses)
+      .where(
+        and(
+          eq(studentFavouritedCourses.id, id),
+          eq(studentFavouritedCourses.studentId, userId),
+        ),
+      )
+      .returning();
+
+    if (!deletedFavouritedCourse) {
+      throw new NotFoundException("Favourite course not found");
+    }
+  }
+}

apps/api/src/swagger/api-schema.json

@@ -836,6 +836,52 @@
           }
         }
       }
+    },
+    "/api/studentFavouritedCourses": {
+      "post": {
+        "operationId": "StudentFavouritedCoursesController_createFavouritedCourse",
+        "parameters": [],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/CreateFavouritedCourseBody"
+              }
+            }
+          }
+        },
+        "responses": {
+          "201": {
+            "description": ""
+          }
+        }
+      },
+      "delete": {
+        "operationId": "StudentFavouritedCoursesController_deleteFavouritedCourseForUser",
+        "parameters": [
+          {
+            "name": "id",
+            "required": false,
+            "in": "query",
+            "schema": {
+              "format": "uuid",
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/DeleteFavouritedCourseForUserResponse"
+                }
+              }
+            }
+          }
+        }
+      }
     }
   },
   "info": {
@@ -1489,6 +1535,21 @@
           "data",
           "pagination"
         ]
+      },
+      "CreateFavouritedCourseBody": {
+        "type": "object",
+        "properties": {
+          "courseId": {
+            "format": "uuid",
+            "type": "string"
+          }
+        },
+        "required": [
+          "courseId"
+        ]
+      },
+      "DeleteFavouritedCourseForUserResponse": {
+        "type": "null"
       }
     }
   }