Added login api route

app/api/auth/login/route.ts

@@ -0,0 +1,79 @@
+import { db } from '@/lib/db'
+import { NextRequest, NextResponse } from 'next/server'
+import { z } from 'zod'
+import bcrypt from 'bcrypt'
+import { sessions } from '@/lib/schema'
+
+const loginSchema = z.object({
+	email: z.string().email(),
+	password: z.string(),
+})
+
+export const POST = async (request: NextRequest) => {
+	const body = await request.json()
+
+	const credential = loginSchema.safeParse(body)
+
+	if (!credential.success) {
+		return NextResponse.json(
+			{ type: 'credential', message: 'Invalid Credential' } as const,
+			{
+				status: 400,
+			}
+		)
+	}
+
+	const existing_user = await db.query.user.findFirst({
+		where: (user, { eq }) => eq(user.email, credential.data.email),
+	})
+
+	if (!existing_user) {
+		return NextResponse.json(
+			{ type: 'credential', message: 'Invalid Credential' } as const,
+			{
+				status: 400,
+			}
+		)
+	}
+
+	const isValidPassword = await bcrypt.compare(
+		credential.data.password,
+		existing_user.hashedPassword
+	)
+
+	if (!isValidPassword) {
+		return NextResponse.json(
+			{ type: 'credential', message: 'Invalid Credential' } as const,
+			{
+				status: 400,
+			}
+		)
+	}
+
+	const token = crypto.randomUUID()
+	const now = new Date()
+	now.setTime(now.getTime() + 4 * 60 * 60 * 1000)
+
+	await db.insert(sessions).values({
+		userId: existing_user.id,
+		sessionToken: token,
+		expires: now,
+	})
+
+	const environment = process.env.ENVIRONMENT ?? 'dev'
+
+	return NextResponse.json(
+		{
+			type: 'success',
+			message: 'Login Successful',
+		} as const,
+		{
+			status: 200,
+			headers: {
+				'Set-Cookie': `token=${token}${
+					environment === 'dev' ? '' : '; Secure'
+				}; httpOnly; sameSite=Strict; Path=/`,
+			},
+		}
+	)
+}