From 818984d19204842efe8ad7ffcc85ac189582452f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sim=C3=B3n=20Villafa=C3=B1e?= <simonvillafanee@gmail.com>
Date: Sat, 18 Apr 2026 23:24:24 -0300
Subject: [PATCH 1/2] feat(modules/auth): semi-intergation of auth module

---
 modules/auth/controllers/index.controller.ts | 24 ++++++++++++++++++++
 modules/auth/schemas/signin.schema.ts        |  9 ++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 modules/auth/schemas/signin.schema.ts

diff --git a/modules/auth/controllers/index.controller.ts b/modules/auth/controllers/index.controller.ts
index b94a616..fac91cf 100644
--- a/modules/auth/controllers/index.controller.ts
+++ b/modules/auth/controllers/index.controller.ts
@@ -5,12 +5,14 @@ import jwt from "jsonwebtoken";
 import { ZodError } from "zod";
 
 import jwtConfig from "@/config/jwt";
+import prisma from "@/database/prisma/client";
 import redisClient from "@/database/redis/client";
 
 import NotFoundError from "../exceptions/notfound.exception";
 import UnauthorizedError from "../exceptions/unauthorized.exception";
 import CredentialSchema from "../schemas/credential.schema";
 import RefreshTokenSchema from "../schemas/refresh-token.schema";
+import SignInSchema from "../schemas/signin.schema";
 import type { JwtSubject } from "../types/jwt";
 
 export default {
@@ -87,6 +89,28 @@ export default {
 		}
 	},
 
+	async signin(req: FastifyRequest, reply: FastifyReply) {
+		try {
+			const { password, ...credentials } = SignInSchema.parse(req.body);
+
+			const userCounter = await prisma.user.count({
+				where: {
+					email: credentials.email,
+				},
+			});
+
+			if (userCounter > 0) {
+				throw new UnauthorizedError(req.t("Email already in use"));
+			}
+		} catch (e) {
+			if (e instanceof UnauthorizedError) {
+				reply.status(401).send({ error: e.message });
+			} else {
+				reply.status(500).send({ error: req.t("Server error") });
+			}
+		}
+	},
+
 	logout(req: FastifyRequest, reply: FastifyReply) {
 		try {
 			const bearerToken = req.headers.authorization;
diff --git a/modules/auth/schemas/signin.schema.ts b/modules/auth/schemas/signin.schema.ts
new file mode 100644
index 0000000..495a413
--- /dev/null
+++ b/modules/auth/schemas/signin.schema.ts
@@ -0,0 +1,9 @@
+import { z } from "zod";
+
+const SignInSchema = z.object({
+	email: z.email(),
+	username: z.string().min(3).max(30),
+	password: z.string().min(8),
+});
+
+export default SignInSchema;

From adea5ff1da2b8278350f33fc42a9e641a110866f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sim=C3=B3n=20Villafa=C3=B1e?= <simonvillafanee@gmail.com>
Date: Sat, 25 Apr 2026 18:36:38 -0300
Subject: [PATCH 2/2] f

---
 .github/workflows/preview.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/preview.yml b/.github/workflows/preview.yml
index b40ba6c..4e6e939 100644
--- a/.github/workflows/preview.yml
+++ b/.github/workflows/preview.yml
@@ -103,6 +103,9 @@ jobs:
       contents: read
       pull-requests: write
     steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
       - name: Comment on PR
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}