feat(auth): add user management endpoint and update guards

Introduce new "me" endpoints for fetching, updating, and deleting current user data. Update guards to properly inject dependent services using @Inject decorator for better DI handling.

src/auth/auth.controller.ts

@@ -1,7 +1,17 @@
-import { Body, Controller, HttpCode, HttpStatus, Post } from "@nestjs/common";
-import { SignInDto, SignUpDto } from "src/auth/auth.dto";
+import {
+  Body,
+  Controller,
+  Delete,
+  Get,
+  HttpCode,
+  HttpStatus, Patch,
+  Post,
+  UnauthorizedException,
+  UseGuards
+} from "@nestjs/common";
+import { SignInDto, SignUpDto, UpdateUserDto } from "src/auth/auth.dto";
 import { AuthService } from "src/auth/auth.service";
-import * as console from "node:console";
+import { UserGuard } from "./auth.guard";
 
 @Controller("auth")
 export class AuthController {
@@ -23,6 +33,42 @@ export class AuthController {
     return this.authService.doLogin(dto);
   }
   //GET me -- Get current user data via jwt
-	//DELETE me
-	//PATCH me
+  @HttpCode(HttpStatus.OK)
+  @Get("me")
+  @UseGuards(UserGuard)
+  async getMe(@Body() body: object) {
+    // @ts-ignore
+    const targetId = body.sourceUserId
+    const userData = await this.authService.fetchUserById(targetId)
+    if (!userData) {
+      throw new UnauthorizedException();
+    }
+    return userData;
+  }
+  //DELETE me
+  @HttpCode(HttpStatus.FOUND)
+  @Delete("me")
+  @UseGuards(UserGuard)
+  async deleteMe(@Body() body: object) {
+    // @ts-ignore
+    const targetId = body.sourceUserId
+    try {
+      await this.authService.deleteUser(targetId)
+    } catch (err) {
+      throw new UnauthorizedException();
+    }
+  }
+
+
+  //PATCH me
+  @HttpCode(HttpStatus.OK)
+  @Patch("me")
+  @UseGuards(UserGuard)
+  async patchMe(@Body() body: UpdateUserDto) {
+    console.log(body);
+    // @ts-ignore
+    const targetId = body.sourceUserId;
+    await this.authService.updateUser(targetId, body);
+    return await this.authService.fetchUserById(targetId)
+  }
 }

src/auth/auth.dto.ts

@@ -48,3 +48,17 @@ export class SignInDto {
 	})
 	password: string;
 }
+
+export class UpdateUserDto {
+	@MinLength(1)
+	@MaxLength(24)
+	@IsNotEmpty()
+	@IsString()
+	firstName: string;
+
+	@MinLength(1)
+	@MaxLength(24)
+	@IsNotEmpty()
+	@IsString()
+	lastName: string;
+}

src/auth/auth.guard.ts

@@ -1,5 +1,5 @@
-import { Injectable, CanActivate, ExecutionContext, UnauthorizedException } from '@nestjs/common';
-import { Request } from 'express';
+import { Injectable, CanActivate, ExecutionContext, UnauthorizedException, Inject } from "@nestjs/common";
+import { Request } from "express";
 import { CredentialsService } from "src/credentials/credentials.service";
 import { DrizzleService } from "src/drizzle/drizzle.service";
 import { UsersTable } from "src/schema";
@@ -8,37 +8,35 @@ import { Reflector } from "@nestjs/core";
 
 @Injectable()
 export class UserGuard implements CanActivate {
-  private readonly credentialService: CredentialsService;
-  private readonly databaseService: DrizzleService;
 
-  constructor() {
-    const reflector = new Reflector();
-    this.credentialService = reflector.get<CredentialsService>('CredentialsService', UserGuard);
-    this.databaseService = reflector.get<DrizzleService>('DrizzleService', UserGuard);
+  constructor(
+    @Inject(CredentialsService) private readonly credentialService: CredentialsService,
+    @Inject(DrizzleService) private readonly databaseService: DrizzleService,
+  ) {
   }
 
   async canActivate(
-    context: ExecutionContext,
+    context: ExecutionContext
   ): Promise<boolean> {
     const request: Request = context.switchToHttp().getRequest();
     const authHeader = request.headers.authorization;
 
     if (!authHeader)
-      throw new UnauthorizedException('No authorization header found.');
+      throw new UnauthorizedException("No authorization header found.");
 
-    const token = authHeader.split(' ')[1];
-    const vToken = await this.credentialService.verifyAuthToken(token)
+    const token = authHeader.split(" ")[1];
+    const vToken = await this.credentialService.verifyAuthToken(token);
 
     const user = await this.databaseService.use()
       .select()
       .from(UsersTable)
-      .where(eq(UsersTable.uuid, vToken.payload.sub))
+      .where(eq(UsersTable.uuid, vToken.payload.sub));
 
     if (user.length !== 1)
-      throw new UnauthorizedException('No such user found.');
+      throw new UnauthorizedException("No such user found.");
 
     if (user[0].emailCode)
-      throw new UnauthorizedException('Email not verified.');
+      throw new UnauthorizedException("Email not verified.");
 
     // Inject user ID into request body
     request.body.sourceUserId = vToken.payload.sub;
@@ -49,33 +47,34 @@ export class UserGuard implements CanActivate {
 
 @Injectable()
 export class AdminGuard implements CanActivate {
-  constructor(
-    private readonly credentialService: CredentialsService,
-    private readonly databaseService: DrizzleService
-  ) {}
 
+  constructor(
+    @Inject(CredentialsService) private readonly credentialService: CredentialsService,
+    @Inject(DrizzleService) private readonly databaseService: DrizzleService,
+  ) {}
   async canActivate(
-    context: ExecutionContext,
+    context: ExecutionContext
   ): Promise<boolean> {
     const request: Request = context.switchToHttp().getRequest();
+
     const authHeader = request.headers.authorization;
+    if (!authHeader) {
+      throw new UnauthorizedException("No authorization header found.");
 
-    if (!authHeader)
-      throw new UnauthorizedException('No authorization header found.');
-
-    const token = authHeader.split(' ')[1];
-    const vToken = await this.credentialService.verifyAuthToken(token)
+    }
+    const token = authHeader.split(" ")[1];
+    const vToken = await this.credentialService.verifyAuthToken(token);
 
     const user = await this.databaseService.use()
       .select()
       .from(UsersTable)
-      .where(eq(UsersTable.uuid, vToken.payload.sub))
+      .where(eq(UsersTable.uuid, vToken.payload.sub));
 
     if (user.length !== 1)
-      throw new UnauthorizedException('No such user found.');
+      throw new UnauthorizedException("No such user found.");
 
     if (!user[0].isAdmin) {
-      throw new UnauthorizedException('Administrator only..');
+      throw new UnauthorizedException("Administrator only..");
     }
 
     // Inject user ID into request body

src/auth/auth.module.ts

@@ -3,11 +3,12 @@ import { CredentialsModule } from "src/credentials/credentials.module";
 import { DrizzleModule } from "src/drizzle/drizzle.module";
 import { AuthController } from "./auth.controller";
 import { AuthService } from "./auth.service";
-import { AdminGuard } from "src/auth/auth.guard";
+import { AdminGuard, UserGuard } from "src/auth/auth.guard";
+import { CredentialsService } from "src/credentials/credentials.service";
 
 @Module({
 	imports: [DrizzleModule, CredentialsModule],
-	providers: [AuthService, AdminGuard],
+	providers: [AuthService, CredentialsService, AdminGuard, UserGuard],
 	controllers: [AuthController],
 })
 export class AuthModule {}

src/auth/auth.service.ts

@@ -75,7 +75,23 @@ export class AuthService implements OnModuleInit {
 		};
 	}
 
-	async fetchUser() {
+	async fetchUserById(userId: string) {
+      const user = await this.db
+          .use()
+          .select()
+          .from(UsersTable)
+          .where(eq(UsersTable.uuid, userId))
+          .prepare("userById")
+          .execute();
+      if (user.length !== 1) {
+          throw new UnauthorizedException("User not found");
+      }
+      delete user[0].hash;
+			delete user[0].emailCode;
+      return user[0];
+  }
+
+	async fetchUsers() {
 		//TODO Pagination
 		const usersInDb = await this.db.use().select().from(UsersTable);
 		const result = {
@@ -134,7 +150,7 @@ export class AuthService implements OnModuleInit {
 
 	async onModuleInit() {
 		setTimeout(() => {
-			this.fetchUser();
+			this.fetchUsers();
 		}, 2000);
 	}
 }