From 7c4999830f011fd10d261522baa056c291705e8b Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Mon, 29 May 2023 19:48:57 +0200
Subject: [PATCH 01/13] chore: grant privileges dev db

---
 docker/dev.docker-compose.yml         |  2 +-
 docker/makefile                       | 15 ++++++++++++++-
 example.env                           |  8 ++++----
 prisma/migrations/migration_lock.toml |  3 +++
 4 files changed, 22 insertions(+), 6 deletions(-)
 create mode 100644 prisma/migrations/migration_lock.toml

diff --git a/docker/dev.docker-compose.yml b/docker/dev.docker-compose.yml
index 39d7d12..bab30c0 100644
--- a/docker/dev.docker-compose.yml
+++ b/docker/dev.docker-compose.yml
@@ -1,7 +1,7 @@
 version: "3.8"
 
 services:
-  my-links-db:
+  my-links-dev-db:
     image: mysql:latest
     restart: always
     env_file: 
diff --git a/docker/makefile b/docker/makefile
index 19b85a8..4f4fa83 100644
--- a/docker/makefile
+++ b/docker/makefile
@@ -1,8 +1,21 @@
+CONTAINER_NAME = "docker-my-links-dev-db-1"
+ROOT_PASSWORD = "root_passwd"
+USER_NAME = "my-user"
+
 start-dev:
+	@echo 'Starting DB container'
 	docker compose --env-file ../.env -f ./dev.docker-compose.yml up -d
 
+	@echo 'Waiting for a minute (need to set $(USER_NAME) privileges)'
+	@sleep 1m
+
+	@echo 'Grant privileges for $(USER_NAME)'
+	docker exec -it $(CONTAINER_NAME) mysql -u root -p$(ROOT_PASSWORD) -e "grant ALL PRIVILEGES ON *.* TO '$(USER_NAME)';flush privileges;"
+
+	@echo 'Dont forget to do migrations before run dev'
+
 start-prod:
 	docker-compose --env-file ../.env -f ./docker-compose.yml up -d
 
 build: 
-	docker build -f ./Dockerfile -t sonny/my-links ../
\ No newline at end of file
+	docker build -f ./Dockerfile -t sonny/my-links ../
diff --git a/example.env b/example.env
index 0cdedbe..d811e80 100644
--- a/example.env
+++ b/example.env
@@ -1,7 +1,7 @@
-MYSQL_USER="my_user"
-MYSQL_PASSWORD="root"
-MYSQL_DATABASE="my-links"
-MYSQL_ROOT_PASSWORD="root"
+MYSQL_USER="my-user"
+MYSQL_PASSWORD="my-user_passwd"
+MYSQL_ROOT_PASSWORD="root_passwd"
+MYSQL_DATABASE="MyLinks"
 
 # Or if you need external Database
 # DATABASE_IP="localhost"
diff --git a/prisma/migrations/migration_lock.toml b/prisma/migrations/migration_lock.toml
new file mode 100644
index 0000000..e5a788a
--- /dev/null
+++ b/prisma/migrations/migration_lock.toml
@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "mysql"
\ No newline at end of file

From e7e7e0c9501e9f88d04f0709aa7200e17e9e6604 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Tue, 30 May 2023 01:17:50 +0200
Subject: [PATCH 02/13] feat(wip): add support for multi user in instance

---
 .../migration.sql                             | 17 +++++++
 .../migration.sql                             | 11 +++++
 prisma/schema.prisma                          | 48 ++++++++++++-------
 src/_middleware.ts                            | 29 +++++++++++
 src/constants/paths.ts                        | 13 ++---
 src/pages/api/auth/[...nextauth].ts           | 45 +++++++++++++----
 src/pages/api/category/create.ts              | 19 +++++++-
 src/pages/signin.tsx                          |  8 ++--
 8 files changed, 153 insertions(+), 37 deletions(-)
 create mode 100644 prisma/migrations/20230529174707_add_category_link_author/migration.sql
 create mode 100644 prisma/migrations/20230529223602_add_link_author/migration.sql
 create mode 100644 src/_middleware.ts

diff --git a/prisma/migrations/20230529174707_add_category_link_author/migration.sql b/prisma/migrations/20230529174707_add_category_link_author/migration.sql
new file mode 100644
index 0000000..776ac93
--- /dev/null
+++ b/prisma/migrations/20230529174707_add_category_link_author/migration.sql
@@ -0,0 +1,17 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `nextCategoryId` on the `category` table. All the data in the column will be lost.
+  - You are about to drop the column `nextLinkId` on the `link` table. All the data in the column will be lost.
+  - Added the required column `authorId` to the `category` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE `category` DROP COLUMN `nextCategoryId`,
+    ADD COLUMN `authorId` INTEGER NOT NULL;
+
+-- AlterTable
+ALTER TABLE `link` DROP COLUMN `nextLinkId`;
+
+-- AddForeignKey
+ALTER TABLE `category` ADD CONSTRAINT `category_authorId_fkey` FOREIGN KEY (`authorId`) REFERENCES `user`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/prisma/migrations/20230529223602_add_link_author/migration.sql b/prisma/migrations/20230529223602_add_link_author/migration.sql
new file mode 100644
index 0000000..a275419
--- /dev/null
+++ b/prisma/migrations/20230529223602_add_link_author/migration.sql
@@ -0,0 +1,11 @@
+/*
+  Warnings:
+
+  - Added the required column `authorId` to the `link` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE `link` ADD COLUMN `authorId` INTEGER NOT NULL;
+
+-- AddForeignKey
+ALTER TABLE `link` ADD CONSTRAINT `link_authorId_fkey` FOREIGN KEY (`authorId`) REFERENCES `user`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 5544f00..da2cd28 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -6,14 +6,19 @@ generator client {
 }
 
 datasource db {
-  provider = "mysql"
-  url      = env("DATABASE_URL")
+  provider          = "mysql"
+  url               = env("DATABASE_URL")
+  shadowDatabaseUrl = env("SHADOW_DATABASE_URL")
 }
 
 model User {
-  id        Int      @id @default(autoincrement())
-  google_id String   @unique
-  email     String   @unique
+  id        Int    @id @default(autoincrement())
+  google_id String @unique
+  email     String @unique
+
+  categories Category[]
+  links      Link[]
+
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
 
@@ -21,26 +26,33 @@ model User {
 }
 
 model Category {
-  id             Int      @id @default(autoincrement())
-  name           String   @unique @db.VarChar(255)
-  links          Link[]
-  nextCategoryId Int      @default(0)
-  createdAt      DateTime @default(now())
-  updatedAt      DateTime @updatedAt
+  id    Int    @id @default(autoincrement())
+  name  String @unique @db.VarChar(255)
+  links Link[]
+
+  author   User @relation(fields: [authorId], references: [id])
+  authorId Int
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
 
   @@map("category")
 }
 
 model Link {
-  id         Int      @id @default(autoincrement())
-  name       String   @db.VarChar(255)
-  url        String   @db.Text
+  id   Int    @id @default(autoincrement())
+  name String @db.VarChar(255)
+  url  String @db.Text
+
   category   Category @relation(fields: [categoryId], references: [id])
   categoryId Int
-  nextLinkId Int      @default(0)
-  favorite   Boolean  @default(false)
-  createdAt  DateTime @default(now())
-  updatedAt  DateTime @updatedAt
+
+  author   User @relation(fields: [authorId], references: [id])
+  authorId Int
+
+  favorite  Boolean  @default(false)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
 
   @@map("link")
 }
diff --git a/src/_middleware.ts b/src/_middleware.ts
new file mode 100644
index 0000000..59120f4
--- /dev/null
+++ b/src/_middleware.ts
@@ -0,0 +1,29 @@
+import PATHS from "constants/paths";
+
+export { default } from "next-auth/middleware";
+
+// WAIT: for fix - Next.js@13.4.4 seems to be broken
+// cf: https://github.com/nextauthjs/next-auth/issues/7650
+// (this file must renamed "middleware.ts")
+
+export const config = {
+  matcher: [
+    PATHS.HOME,
+
+    PATHS.LINK.CREATE,
+    PATHS.LINK.EDIT,
+    PATHS.LINK.REMOVE,
+
+    PATHS.CATEGORY.CREATE,
+    PATHS.CATEGORY.EDIT,
+    PATHS.CATEGORY.REMOVE,
+
+    PATHS.API.CATEGORY.CREATE,
+    PATHS.API.CATEGORY.EDIT,
+    PATHS.API.CATEGORY.REMOVE,
+
+    PATHS.API.LINK.CREATE,
+    PATHS.API.LINK.EDIT,
+    PATHS.API.LINK.REMOVE,
+  ],
+};
diff --git a/src/constants/paths.ts b/src/constants/paths.ts
index 133dcb7..ad99d54 100644
--- a/src/constants/paths.ts
+++ b/src/constants/paths.ts
@@ -1,5 +1,6 @@
 const PATHS = {
   LOGIN: "/signin",
+  LOGOUT: "/signout",
   HOME: "/",
   CATEGORY: {
     CREATE: "/category/create",
@@ -13,14 +14,14 @@ const PATHS = {
   },
   API: {
     CATEGORY: {
-      CREATE: "/category/create",
-      EDIT: "/category/edit",
-      REMOVE: "/category/remove",
+      CREATE: "/api/category/create",
+      EDIT: "/api/category/edit",
+      REMOVE: "/api/category/remove",
     },
     LINK: {
-      CREATE: "/link/create",
-      EDIT: "/link/edit",
-      REMOVE: "/link/remove",
+      CREATE: "/api/link/create",
+      EDIT: "/api/link/edit",
+      REMOVE: "/api/link/remove",
     },
   },
   NOT_FOUND: "/404",
diff --git a/src/pages/api/auth/[...nextauth].ts b/src/pages/api/auth/[...nextauth].ts
index 35e4061..f0aab3a 100644
--- a/src/pages/api/auth/[...nextauth].ts
+++ b/src/pages/api/auth/[...nextauth].ts
@@ -1,11 +1,12 @@
 import { PrismaClient } from "@prisma/client";
 import PATHS from "constants/paths";
-import NextAuth from "next-auth";
+import NextAuth, { NextAuthOptions } from "next-auth";
 import GoogleProvider from "next-auth/providers/google";
 
 const prisma = new PrismaClient();
 
-export default NextAuth({
+// TODO: refactor auth
+export const authOptions = {
   providers: [
     GoogleProvider({
       clientId: process.env.GOOGLE_CLIENT_ID,
@@ -20,24 +21,33 @@ export default NextAuth({
     }),
   ],
   callbacks: {
+    async session({ session }) {
+      // check if stored in session still exist in db
+      await prisma.user.findFirstOrThrow({
+        where: { email: session.user.email },
+      });
+      return session;
+    },
     async signIn({ account: accountParam, profile }) {
-      // TODO: Auth
       console.log(
-        "Connexion via",
-        accountParam.provider,
-        accountParam.providerAccountId,
-        profile.email,
-        profile.name
+        "[AUTH]",
+        "User",
+        profile.name,
+        "attempt to log in with",
+        accountParam.provider
       );
       if (accountParam.provider !== "google") {
+        console.log("[AUTH]", "User", profile.name, "rejeced : bad provider");
         return (
           PATHS.LOGIN +
           "?error=" +
           encodeURI("Authentitifcation via Google requise")
         );
       }
+
       const email = profile?.email;
       if (email === "") {
+        console.log("[AUTH]", "User", profile.name, "rejeced : missing email");
         return (
           PATHS.LOGIN +
           "?error=" +
@@ -48,6 +58,12 @@ export default NextAuth({
       }
       const googleId = profile?.sub;
       if (googleId === "") {
+        console.log(
+          "[AUTH]",
+          "User",
+          profile.name,
+          "rejeced : missing google id"
+        );
         return (
           PATHS.LOGIN +
           "?error=" +
@@ -74,6 +90,13 @@ export default NextAuth({
             });
             return true;
           }
+
+          console.log(
+            "[AUTH]",
+            "User",
+            profile.name,
+            "rejeced : not authorized"
+          );
           return (
             PATHS.LOGIN +
             "?error=" +
@@ -82,9 +105,11 @@ export default NextAuth({
             )
           );
         } else {
+          console.log("[AUTH]", "User", profile.name, "success");
           return true;
         }
       } catch (error) {
+        console.log("[AUTH]", "User", profile.name, "unhandled error");
         console.error(error);
         return (
           PATHS.LOGIN +
@@ -97,8 +122,10 @@ export default NextAuth({
   pages: {
     signIn: PATHS.LOGIN,
     error: PATHS.LOGIN,
+    signOut: PATHS.LOGOUT,
   },
   session: {
     maxAge: 60 * 60 * 6, // Session de 6 heures
   },
-});
+} as NextAuthOptions;
+export default NextAuth(authOptions);
diff --git a/src/pages/api/category/create.ts b/src/pages/api/category/create.ts
index f96f66d..ccd63f6 100644
--- a/src/pages/api/category/create.ts
+++ b/src/pages/api/category/create.ts
@@ -1,10 +1,15 @@
 import { NextApiRequest, NextApiResponse } from "next";
+import { getServerSession } from "next-auth/next";
+import { authOptions } from "../auth/[...nextauth]";
+
 import prisma from "utils/prisma";
 
 export default async function handler(
   req: NextApiRequest,
   res: NextApiResponse
 ) {
+  const session = await getServerSession(req, res, authOptions); // je sais plus d'où ça vient
+  console.log("session", session);
   const name = req.body?.name as string;
 
   if (!name) {
@@ -30,8 +35,20 @@ export default async function handler(
   }
 
   try {
+    const { id: authorId } = await prisma.user.findFirst({
+      where: {
+        email: session.user.email,
+      },
+      select: {
+        id: true,
+      },
+    });
+    if (!authorId) {
+      throw new Error("Unable to find user");
+    }
+
     const category = await prisma.category.create({
-      data: { name },
+      data: { name, authorId },
     });
     return res.status(200).send({
       success: "Catégorie créée avec succès",
diff --git a/src/pages/signin.tsx b/src/pages/signin.tsx
index 574b3b7..54dd4f7 100644
--- a/src/pages/signin.tsx
+++ b/src/pages/signin.tsx
@@ -1,5 +1,6 @@
+import { getServerSession } from "next-auth/next";
 import { Provider } from "next-auth/providers";
-import { getProviders, getSession, signIn } from "next-auth/react";
+import { getProviders, signIn } from "next-auth/react";
 import { NextSeo } from "next-seo";
 import Link from "next/link";
 
@@ -7,6 +8,7 @@ import MessageManager from "components/MessageManager/MessageManager";
 import PATHS from "constants/paths";
 
 import styles from "styles/login.module.scss";
+import { authOptions } from "./api/auth/[...nextauth]";
 
 interface SignInProps {
   providers: Provider[];
@@ -36,8 +38,8 @@ export default function SignIn({ providers }: SignInProps) {
   );
 }
 
-export async function getServerSideProps(context) {
-  const session = await getSession(context);
+export async function getServerSideProps({ req, res }) {
+  const session = await getServerSession(req, res, authOptions);
   if (session) {
     return {
       redirect: {

From a89fa471e09ec8a14364ea1c9a8e1f2dc4578f57 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Wed, 31 May 2023 19:27:48 +0200
Subject: [PATCH 03/13] feat(wip): create models to access db data

---
 package-lock.json                     | 40 +++++++++++++-
 package.json                          |  3 +-
 src/lib/category/getUserCategories.ts | 17 ++++++
 src/lib/link/getUserLink.ts           | 14 +++++
 src/lib/link/getUserLinks.ts          | 10 ++++
 src/lib/user/getUserOrThrow.ts        | 10 ++++
 src/pages/api/auth/[...nextauth].ts   |  1 +
 src/pages/api/category/create.ts      | 80 ++++++++++-----------------
 src/pages/api/link/create.ts          | 13 +++++
 src/pages/category/edit/[cid].tsx     |  2 +-
 src/pages/category/remove/[cid].tsx   |  2 +-
 src/pages/index.tsx                   | 22 +++++++-
 src/pages/link/create.tsx             |  4 +-
 src/pages/link/edit/[lid].tsx         | 33 ++++-------
 src/pages/link/remove/[lid].tsx       |  2 +-
 src/types.d.ts                        |  8 ++-
 src/utils/api.ts                      | 12 ++++
 src/utils/front.ts                    | 11 ++--
 src/utils/session.ts                  | 17 ++++++
 19 files changed, 213 insertions(+), 88 deletions(-)
 create mode 100644 src/lib/category/getUserCategories.ts
 create mode 100644 src/lib/link/getUserLink.ts
 create mode 100644 src/lib/link/getUserLinks.ts
 create mode 100644 src/lib/user/getUserOrThrow.ts
 create mode 100644 src/utils/api.ts
 create mode 100644 src/utils/session.ts

diff --git a/package-lock.json b/package-lock.json
index 13f9c06..038ca36 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,8 @@
         "react-select": "^5.7.3",
         "sass": "^1.62.1",
         "sharp": "^0.32.1",
-        "toastr": "^2.1.4"
+        "toastr": "^2.1.4",
+        "yup": "^1.2.0"
       },
       "devDependencies": {
         "@types/node": "^20.2.4",
@@ -6005,6 +6006,11 @@
         "react-is": "^16.13.1"
       }
     },
+    "node_modules/property-expr": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/property-expr/-/property-expr-2.0.5.tgz",
+      "integrity": "sha512-IJUkICM5dP5znhCckHSv30Q4b5/JA5enCtkRHYaOVOAocnH/1BQEYTC5NMfT3AVl/iXKdr3aqQbQn9DxyWknwA=="
+    },
     "node_modules/proxy-from-env": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
@@ -6811,6 +6817,11 @@
       "integrity": "sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==",
       "dev": true
     },
+    "node_modules/tiny-case": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tiny-case/-/tiny-case-1.0.3.tgz",
+      "integrity": "sha512-Eet/eeMhkO6TX8mnUteS9zgPbUMQa4I6Kkp5ORiBD5476/m+PIRiumP5tmh5ioJpH7k51Kehawy2UDfsnxxY8Q=="
+    },
     "node_modules/tiny-glob": {
       "version": "0.2.9",
       "resolved": "https://registry.npmjs.org/tiny-glob/-/tiny-glob-0.2.9.tgz",
@@ -6848,6 +6859,11 @@
         "jquery": ">=1.12.0"
       }
     },
+    "node_modules/toposort": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/toposort/-/toposort-2.0.2.tgz",
+      "integrity": "sha512-0a5EOkAUp8D4moMi2W8ZF8jcga7BgZd91O/yabJCFY8az+XSzeGyTKs0Aoo897iV1Nj6guFq8orWDS96z91oGg=="
+    },
     "node_modules/tsconfig-paths": {
       "version": "3.14.1",
       "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.14.1.tgz",
@@ -7161,6 +7177,28 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/yup": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/yup/-/yup-1.2.0.tgz",
+      "integrity": "sha512-PPqYKSAXjpRCgLgLKVGPA33v5c/WgEx3wi6NFjIiegz90zSwyMpvTFp/uGcVnnbx6to28pgnzp/q8ih3QRjLMQ==",
+      "dependencies": {
+        "property-expr": "^2.0.5",
+        "tiny-case": "^1.0.3",
+        "toposort": "^2.0.2",
+        "type-fest": "^2.19.0"
+      }
+    },
+    "node_modules/yup/node_modules/type-fest": {
+      "version": "2.19.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-2.19.0.tgz",
+      "integrity": "sha512-RAH822pAdBgcNMAfWnCBU3CFZcfZ/i1eZjwFU/dsLKumyuuP3niueg2UAukXYF0E2AAoc82ZSSf9J0WQBinzHA==",
+      "engines": {
+        "node": ">=12.20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/zod": {
       "version": "3.21.4",
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.21.4.tgz",
diff --git a/package.json b/package.json
index 76eeea0..82cb217 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,8 @@
     "react-select": "^5.7.3",
     "sass": "^1.62.1",
     "sharp": "^0.32.1",
-    "toastr": "^2.1.4"
+    "toastr": "^2.1.4",
+    "yup": "^1.2.0"
   },
   "devDependencies": {
     "@types/node": "^20.2.4",
diff --git a/src/lib/category/getUserCategories.ts b/src/lib/category/getUserCategories.ts
new file mode 100644
index 0000000..81bf447
--- /dev/null
+++ b/src/lib/category/getUserCategories.ts
@@ -0,0 +1,17 @@
+import { User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getUserCategories(user: User) {
+  return await prisma.category.findMany({
+    where: {
+      authorId: user.id,
+    },
+    include: {
+      links: {
+        where: {
+          authorId: user.id,
+        },
+      },
+    },
+  });
+}
diff --git a/src/lib/link/getUserLink.ts b/src/lib/link/getUserLink.ts
new file mode 100644
index 0000000..54bfe65
--- /dev/null
+++ b/src/lib/link/getUserLink.ts
@@ -0,0 +1,14 @@
+import { Link, User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getUserLink(user: User, id: Link["id"]) {
+  return await prisma.link.findFirst({
+    where: {
+      id,
+      authorId: user.id,
+    },
+    include: {
+      category: true,
+    },
+  });
+}
diff --git a/src/lib/link/getUserLinks.ts b/src/lib/link/getUserLinks.ts
new file mode 100644
index 0000000..7d8de9a
--- /dev/null
+++ b/src/lib/link/getUserLinks.ts
@@ -0,0 +1,10 @@
+import { User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getUserLinks(user: User) {
+  return await prisma.link.findMany({
+    where: {
+      authorId: user.id,
+    },
+  });
+}
diff --git a/src/lib/user/getUserOrThrow.ts b/src/lib/user/getUserOrThrow.ts
new file mode 100644
index 0000000..5ba5b31
--- /dev/null
+++ b/src/lib/user/getUserOrThrow.ts
@@ -0,0 +1,10 @@
+import { Session } from "next-auth";
+import prisma from "utils/prisma";
+
+export default async function getUserOrThrow(session: Session) {
+  return await prisma.user.findFirstOrThrow({
+    where: {
+      email: session?.user?.email,
+    },
+  });
+}
diff --git a/src/pages/api/auth/[...nextauth].ts b/src/pages/api/auth/[...nextauth].ts
index f0aab3a..80becdd 100644
--- a/src/pages/api/auth/[...nextauth].ts
+++ b/src/pages/api/auth/[...nextauth].ts
@@ -33,6 +33,7 @@ export const authOptions = {
         "[AUTH]",
         "User",
         profile.name,
+        profile.sub,
         "attempt to log in with",
         accountParam.provider
       );
diff --git a/src/pages/api/category/create.ts b/src/pages/api/category/create.ts
index ccd63f6..054e102 100644
--- a/src/pages/api/category/create.ts
+++ b/src/pages/api/category/create.ts
@@ -1,64 +1,40 @@
 import { NextApiRequest, NextApiResponse } from "next";
-import { getServerSession } from "next-auth/next";
-import { authOptions } from "../auth/[...nextauth]";
 
+import { checkMethodAllowedOrThrow } from "utils/api";
 import prisma from "utils/prisma";
+import { getSessionOrThrow } from "utils/session";
+
+export default async function POST(req: NextApiRequest, res: NextApiResponse) {
+  await checkMethodAllowedOrThrow(req, ["post"]);
+  const session = await getSessionOrThrow(req, res);
 
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  const session = await getServerSession(req, res, authOptions); // je sais plus d'où ça vient
-  console.log("session", session);
   const name = req.body?.name as string;
-
   if (!name) {
-    return res.status(400).send({ error: "Nom de catégorie manquant" });
+    throw new Error("Categorie name missing");
   }
 
-  try {
-    const category = await prisma.category.findFirst({
-      where: { name },
-    });
-
-    if (category) {
-      return res
-        .status(400)
-        .send({ error: "Une catégorie avec ce nom existe déjà" });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la création de la catégorie (category/create->findCategory)",
-    });
+  const category = await prisma.category.findFirst({
+    where: { name },
+  });
+  if (category) {
+    throw new Error("Category name already used");
   }
 
-  try {
-    const { id: authorId } = await prisma.user.findFirst({
-      where: {
-        email: session.user.email,
-      },
-      select: {
-        id: true,
-      },
-    });
-    if (!authorId) {
-      throw new Error("Unable to find user");
-    }
+  const { id: authorId } = await prisma.user.findFirstOrThrow({
+    where: {
+      email: session.user.email,
+    },
+    select: {
+      id: true,
+    },
+  });
 
-    const category = await prisma.category.create({
-      data: { name, authorId },
-    });
-    return res.status(200).send({
-      success: "Catégorie créée avec succès",
-      categoryId: category.id,
-    });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la création de la catégorie (category/create->createCategory)",
-    });
-  }
+  const categoryCreated = await prisma.category.create({
+    data: { name, authorId },
+  });
+  console.log("là");
+  return res.status(200).send({
+    success: "Category successfully created",
+    categoryId: categoryCreated.id,
+  });
 }
diff --git a/src/pages/api/link/create.ts b/src/pages/api/link/create.ts
index eca3f39..02ed944 100644
--- a/src/pages/api/link/create.ts
+++ b/src/pages/api/link/create.ts
@@ -1,10 +1,19 @@
 import { NextApiRequest, NextApiResponse } from "next";
+import { getServerSession } from "next-auth/next";
+
 import prisma from "utils/prisma";
+import { authOptions } from "../auth/[...nextauth]";
 
 export default async function handler(
   req: NextApiRequest,
   res: NextApiResponse
 ) {
+  const session = await getServerSession(req, res, authOptions); // je sais plus d'où ça vient
+  console.log("session", session);
+  if (!session?.user) {
+    return res.status(400).send({ error: "You must be connected" });
+  }
+
   const name = req.body?.name as string;
   const url = req.body?.url as string;
   const favorite = Boolean(req.body?.favorite) || false;
@@ -57,12 +66,16 @@ export default async function handler(
   }
 
   try {
+    const { id: authorId } = await prisma.user.findFirstOrThrow({
+      where: { email: session.user.email },
+    });
     await prisma.link.create({
       data: {
         name,
         url,
         categoryId,
         favorite,
+        authorId,
       },
     });
     return res
diff --git a/src/pages/category/edit/[cid].tsx b/src/pages/category/edit/[cid].tsx
index 69f6be9..455bec7 100644
--- a/src/pages/category/edit/[cid].tsx
+++ b/src/pages/category/edit/[cid].tsx
@@ -79,7 +79,7 @@ export async function getServerSideProps({ query }) {
   const { cid } = query;
   const categoryDB = await prisma.category.findFirst({
     where: { id: Number(cid) },
-    include: { links: true },
+    include: { links: true, author: true },
   });
 
   if (!categoryDB) {
diff --git a/src/pages/category/remove/[cid].tsx b/src/pages/category/remove/[cid].tsx
index 0974deb..f4ef4e8 100644
--- a/src/pages/category/remove/[cid].tsx
+++ b/src/pages/category/remove/[cid].tsx
@@ -84,7 +84,7 @@ export async function getServerSideProps({ query }) {
   const { cid } = query;
   const categoryDB = await prisma.category.findFirst({
     where: { id: Number(cid) },
-    include: { links: true },
+    include: { links: true, author: true },
   });
 
   if (!categoryDB) {
diff --git a/src/pages/index.tsx b/src/pages/index.tsx
index 9742e5b..6ec8d81 100644
--- a/src/pages/index.tsx
+++ b/src/pages/index.tsx
@@ -16,6 +16,7 @@ import { Category, Link, SearchItem } from "types";
 import { BuildCategory } from "utils/front";
 import { pushStateVanilla } from "utils/link";
 import prisma from "utils/prisma";
+import { getSessionOrThrow } from "utils/session";
 
 interface HomePageProps {
   categories: Category[];
@@ -185,10 +186,27 @@ function Home(props: HomePageProps) {
   );
 }
 
-export async function getServerSideProps({ query }) {
+export async function getServerSideProps({ req, res, query }) {
+  const session = await getSessionOrThrow(req, res);
   const queryCategoryId = (query?.categoryId as string) || "";
+
+  const user = await prisma.user.findFirstOrThrow({
+    where: {
+      email: session.user.email,
+    },
+  });
   const categoriesDB = await prisma.category.findMany({
-    include: { links: true },
+    include: {
+      links: {
+        where: {
+          authorId: user.id,
+        },
+      },
+      author: true,
+    },
+    where: {
+      authorId: user.id,
+    },
   });
 
   if (categoriesDB.length === 0) {
diff --git a/src/pages/link/create.tsx b/src/pages/link/create.tsx
index 51a7daf..7694ee2 100644
--- a/src/pages/link/create.tsx
+++ b/src/pages/link/create.tsx
@@ -111,7 +111,9 @@ CreateLink.authRequired = true;
 export default CreateLink;
 
 export async function getServerSideProps() {
-  const categoriesDB = await prisma.category.findMany();
+  const categoriesDB = await prisma.category.findMany({
+    include: { author: true },
+  });
   const categories = categoriesDB.map((categoryDB) =>
     BuildCategory(categoryDB)
   );
diff --git a/src/pages/link/edit/[lid].tsx b/src/pages/link/edit/[lid].tsx
index 37c5bd4..678dab3 100644
--- a/src/pages/link/edit/[lid].tsx
+++ b/src/pages/link/edit/[lid].tsx
@@ -11,15 +11,13 @@ import TextBox from "components/TextBox";
 
 import useAutoFocus from "hooks/useAutoFocus";
 import { Category, Link } from "types";
-import {
-  BuildCategory,
-  BuildLink,
-  HandleAxiosError,
-  IsValidURL,
-} from "utils/front";
-import prisma from "utils/prisma";
+import { HandleAxiosError, IsValidURL } from "utils/front";
 
+import getUserCategories from "lib/category/getUserCategories";
+import getUserLink from "lib/link/getUserLink";
+import getUserOrThrow from "lib/user/getUserOrThrow";
 import styles from "styles/create.module.scss";
+import { getSessionOrThrow } from "utils/session";
 
 function EditLink({
   link,
@@ -133,20 +131,15 @@ function EditLink({
 EditLink.authRequired = true;
 export default EditLink;
 
-export async function getServerSideProps({ query }) {
+export async function getServerSideProps({ req, res, query }) {
   const { lid } = query;
 
-  const categoriesDB = await prisma.category.findMany();
-  const categories = categoriesDB.map((categoryDB) =>
-    BuildCategory(categoryDB)
-  );
+  const session = await getSessionOrThrow(req, res);
+  const user = await getUserOrThrow(session);
+  const categories = await getUserCategories(user);
 
-  const linkDB = await prisma.link.findFirst({
-    where: { id: Number(lid) },
-    include: { category: true },
-  });
-
-  if (!linkDB) {
+  const link = await getUserLink(user, Number(lid));
+  if (!link) {
     return {
       redirect: {
         destination: "/",
@@ -154,10 +147,6 @@ export async function getServerSideProps({ query }) {
     };
   }
 
-  const link = BuildLink(linkDB, {
-    categoryId: linkDB.categoryId,
-    categoryName: linkDB.category.name,
-  });
   return {
     props: {
       link: JSON.parse(JSON.stringify(link)),
diff --git a/src/pages/link/remove/[lid].tsx b/src/pages/link/remove/[lid].tsx
index a528d91..481e303 100644
--- a/src/pages/link/remove/[lid].tsx
+++ b/src/pages/link/remove/[lid].tsx
@@ -98,7 +98,7 @@ export async function getServerSideProps({ query }) {
   const { lid } = query;
   const linkDB = await prisma.link.findFirst({
     where: { id: Number(lid) },
-    include: { category: true },
+    include: { category: true, author: true },
   });
 
   if (!linkDB) {
diff --git a/src/types.d.ts b/src/types.d.ts
index d5bfb0d..b8e8a38 100644
--- a/src/types.d.ts
+++ b/src/types.d.ts
@@ -1,9 +1,12 @@
+import { User } from "@prisma/client";
+
 export interface Category {
   id: number;
   name: string;
 
   links: Link[];
-  nextCategoryId: number;
+  authorId: User["id"];
+  author: User;
 
   createdAt: Date;
   updatedAt: Date;
@@ -20,7 +23,8 @@ export interface Link {
     name: string;
   };
 
-  nextLinkId: number;
+  authorId: User["id"];
+  author: User;
   favorite: boolean;
 
   createdAt: Date;
diff --git a/src/utils/api.ts b/src/utils/api.ts
new file mode 100644
index 0000000..0e23587
--- /dev/null
+++ b/src/utils/api.ts
@@ -0,0 +1,12 @@
+import { NextApiRequest } from "next";
+
+export function checkMethodAllowedOrThrow(
+  req: NextApiRequest,
+  methods: Array<RequestInit["method"]>
+) {
+  const isMethodAllowed = methods.includes(req.method.toLowerCase());
+  if (!isMethodAllowed) {
+    throw new Error(`Method ${req.method} not allowed`);
+  }
+  return isMethodAllowed;
+}
diff --git a/src/utils/front.ts b/src/utils/front.ts
index b368165..00dc492 100644
--- a/src/utils/front.ts
+++ b/src/utils/front.ts
@@ -5,7 +5,8 @@ import { Category, Link } from "types";
 export function BuildCategory({
   id,
   name,
-  nextCategoryId,
+  authorId,
+  author,
   links = [],
   createdAt,
   updatedAt,
@@ -16,14 +17,15 @@ export function BuildCategory({
     links: links.map((link) =>
       BuildLink(link, { categoryId: id, categoryName: name })
     ),
-    nextCategoryId,
+    authorId,
+    author,
     createdAt,
     updatedAt,
   };
 }
 
 export function BuildLink(
-  { id, name, url, nextLinkId, favorite, createdAt, updatedAt },
+  { id, name, url, authorId, author, favorite, createdAt, updatedAt },
   { categoryId, categoryName }
 ): Link {
   return {
@@ -34,7 +36,8 @@ export function BuildLink(
       id: categoryId,
       name: categoryName,
     },
-    nextLinkId,
+    authorId,
+    author,
     favorite,
     createdAt,
     updatedAt,
diff --git a/src/utils/session.ts b/src/utils/session.ts
new file mode 100644
index 0000000..f1a4905
--- /dev/null
+++ b/src/utils/session.ts
@@ -0,0 +1,17 @@
+import { NextApiRequest, NextApiResponse } from "next";
+import { getServerSession } from "next-auth/next";
+
+import { authOptions } from "pages/api/auth/[...nextauth]";
+
+export async function getSessionOrThrow(
+  req: NextApiRequest,
+  res: NextApiResponse
+) {
+  const session = await getServerSession(req, res, authOptions);
+
+  if (!session) {
+    throw new Error("You must be connected");
+  }
+
+  return session;
+}

From cfcc99fa6b4e0e9c6e0acfdaa8aa8db83190f078 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 20:09:26 +0200
Subject: [PATCH 04/13] feat: api handler

---
 src/_middleware.ts             | 29 -----------
 src/lib/api/handler.ts         | 93 ++++++++++++++++++++++++++++++++++
 src/lib/user/getUserOrThrow.ts |  3 ++
 src/utils/session.ts           |  6 ++-
 4 files changed, 101 insertions(+), 30 deletions(-)
 delete mode 100644 src/_middleware.ts
 create mode 100644 src/lib/api/handler.ts

diff --git a/src/_middleware.ts b/src/_middleware.ts
deleted file mode 100644
index 59120f4..0000000
--- a/src/_middleware.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-import PATHS from "constants/paths";
-
-export { default } from "next-auth/middleware";
-
-// WAIT: for fix - Next.js@13.4.4 seems to be broken
-// cf: https://github.com/nextauthjs/next-auth/issues/7650
-// (this file must renamed "middleware.ts")
-
-export const config = {
-  matcher: [
-    PATHS.HOME,
-
-    PATHS.LINK.CREATE,
-    PATHS.LINK.EDIT,
-    PATHS.LINK.REMOVE,
-
-    PATHS.CATEGORY.CREATE,
-    PATHS.CATEGORY.EDIT,
-    PATHS.CATEGORY.REMOVE,
-
-    PATHS.API.CATEGORY.CREATE,
-    PATHS.API.CATEGORY.EDIT,
-    PATHS.API.CATEGORY.REMOVE,
-
-    PATHS.API.LINK.CREATE,
-    PATHS.API.LINK.EDIT,
-    PATHS.API.LINK.REMOVE,
-  ],
-};
diff --git a/src/lib/api/handler.ts b/src/lib/api/handler.ts
new file mode 100644
index 0000000..18d60ae
--- /dev/null
+++ b/src/lib/api/handler.ts
@@ -0,0 +1,93 @@
+import { User } from "@prisma/client";
+import { PrismaClientKnownRequestError } from "@prisma/client/runtime";
+import { NextApiRequest, NextApiResponse } from "next";
+import { Session } from "next-auth";
+
+import getUserOrThrow from "lib/user/getUserOrThrow";
+import { getSessionOrThrow } from "utils/session";
+
+type ApiHandlerMethod = ({
+  req,
+  res,
+  session,
+  user,
+}: {
+  req: NextApiRequest;
+  res: NextApiResponse;
+  session: Session;
+  user: User;
+}) => Promise<void>;
+
+// This API Handler strongly inspired by
+// Source: https://jasonwatmore.com/next-js-13-middleware-for-authentication-and-error-handling-on-api-routes
+
+export function apiHandler(handler: {
+  get?: ApiHandlerMethod;
+  post?: ApiHandlerMethod;
+  put?: ApiHandlerMethod;
+  patch?: ApiHandlerMethod;
+  delete?: ApiHandlerMethod;
+}) {
+  return async (req: NextApiRequest, res: NextApiResponse) => {
+    const method = req.method.toLowerCase();
+    if (!handler[method])
+      return res
+        .status(405)
+        .json({ error: `Method ${req.method} Not Allowed` });
+
+    try {
+      const session = await getSessionOrThrow(req, res);
+      const user = await getUserOrThrow(session);
+
+      await handler[method]({ req, res, session, user });
+    } catch (err) {
+      errorHandler(err, res);
+    }
+  };
+}
+
+function errorHandler(error: any, response: NextApiResponse) {
+  if (typeof error === "string") {
+    const is404 = error.toLowerCase().endsWith("not found");
+    const statusCode = is404 ? 404 : 400;
+
+    return response.status(statusCode).json({ message: error });
+  }
+
+  // does not fit with current error throwed
+  // TODO: fix errors returned
+  // by getSessionOrThrow or getUserOrThrow
+  if (error.name === "UnauthorizedError") {
+    // authentication error
+    return response.status(401).json({ message: "You must be connected" });
+  }
+
+  const errorMessage =
+    error.constructor.name === "PrismaClientKnownRequestError"
+      ? handlePrismaError(error) // Handle Prisma specific errors
+      : error.message;
+
+  console.error(error);
+  return response.status(500).json({ message: errorMessage });
+}
+
+function handlePrismaError({
+  meta,
+  code,
+  message,
+}: PrismaClientKnownRequestError) {
+  switch (code) {
+    case "P2002":
+      return `Duplicate field value: ${meta.target}`;
+    case "P2003":
+      return `Foreign key constraint failed on the field: ${meta.field_name}`;
+    case "P2014":
+      return `Invalid ID: ${meta.target}`;
+    case "P2003":
+      return `Invalid input data: ${meta.target}`;
+
+    // Details should not leak to client, be carreful with this
+    default:
+      return `Something went wrong: ${message}`;
+  }
+}
diff --git a/src/lib/user/getUserOrThrow.ts b/src/lib/user/getUserOrThrow.ts
index 5ba5b31..0f9626a 100644
--- a/src/lib/user/getUserOrThrow.ts
+++ b/src/lib/user/getUserOrThrow.ts
@@ -2,6 +2,9 @@ import { Session } from "next-auth";
 import prisma from "utils/prisma";
 
 export default async function getUserOrThrow(session: Session) {
+  if (!session || session === null) {
+    throw new Error("You must be connected");
+  }
   return await prisma.user.findFirstOrThrow({
     where: {
       email: session?.user?.email,
diff --git a/src/utils/session.ts b/src/utils/session.ts
index f1a4905..ba428d7 100644
--- a/src/utils/session.ts
+++ b/src/utils/session.ts
@@ -3,11 +3,15 @@ import { getServerSession } from "next-auth/next";
 
 import { authOptions } from "pages/api/auth/[...nextauth]";
 
+export async function getSession(req: NextApiRequest, res: NextApiResponse) {
+  return await getServerSession(req, res, authOptions);
+}
+
 export async function getSessionOrThrow(
   req: NextApiRequest,
   res: NextApiResponse
 ) {
-  const session = await getServerSession(req, res, authOptions);
+  const session = await getSession(req, res);
 
   if (!session) {
     throw new Error("You must be connected");

From a6f32e852cc7335d7244006d1e77f795b33fc233 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 20:12:21 +0200
Subject: [PATCH 05/13] feat: create functions to get user specific data

Such as link, category or user related
---
 src/lib/category/getUserCategories.ts     |  4 ++--
 src/lib/category/getUserCategory.ts       | 18 ++++++++++++++++++
 src/lib/link/getLinkFromCategoryByName.ts | 19 +++++++++++++++++++
 src/lib/user/getUser.ts                   | 10 ++++++++++
 4 files changed, 49 insertions(+), 2 deletions(-)
 create mode 100644 src/lib/category/getUserCategory.ts
 create mode 100644 src/lib/link/getLinkFromCategoryByName.ts
 create mode 100644 src/lib/user/getUser.ts

diff --git a/src/lib/category/getUserCategories.ts b/src/lib/category/getUserCategories.ts
index 81bf447..6cbeeb5 100644
--- a/src/lib/category/getUserCategories.ts
+++ b/src/lib/category/getUserCategories.ts
@@ -4,12 +4,12 @@ import prisma from "utils/prisma";
 export default async function getUserCategories(user: User) {
   return await prisma.category.findMany({
     where: {
-      authorId: user.id,
+      authorId: user?.id,
     },
     include: {
       links: {
         where: {
-          authorId: user.id,
+          authorId: user?.id,
         },
       },
     },
diff --git a/src/lib/category/getUserCategory.ts b/src/lib/category/getUserCategory.ts
new file mode 100644
index 0000000..e7272ad
--- /dev/null
+++ b/src/lib/category/getUserCategory.ts
@@ -0,0 +1,18 @@
+import { Category, User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getUserCategory(user: User, id: Category["id"]) {
+  return await prisma.category.findFirst({
+    where: {
+      authorId: user?.id,
+      id,
+    },
+    include: {
+      links: {
+        where: {
+          authorId: user?.id,
+        },
+      },
+    },
+  });
+}
diff --git a/src/lib/link/getLinkFromCategoryByName.ts b/src/lib/link/getLinkFromCategoryByName.ts
new file mode 100644
index 0000000..4bdaa3f
--- /dev/null
+++ b/src/lib/link/getLinkFromCategoryByName.ts
@@ -0,0 +1,19 @@
+import { Category, Link, User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getLinkFromCategoryByName(
+  user: User,
+  name: Link["name"],
+  categoryId: Category["id"]
+) {
+  return await prisma.link.findFirst({
+    where: {
+      authorId: user.id,
+      name,
+      categoryId,
+    },
+    include: {
+      category: true,
+    },
+  });
+}
diff --git a/src/lib/user/getUser.ts b/src/lib/user/getUser.ts
new file mode 100644
index 0000000..695a3ea
--- /dev/null
+++ b/src/lib/user/getUser.ts
@@ -0,0 +1,10 @@
+import { Session } from "next-auth";
+import prisma from "utils/prisma";
+
+export default async function getUser(session: Session) {
+  return await prisma.user.findFirst({
+    where: {
+      email: session?.user?.email,
+    },
+  });
+}

From 35829522c3012e2c80ce5390fba272e3801efc45 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 20:14:54 +0200
Subject: [PATCH 06/13] refactor: use data retrieval functions

---
 src/constants/url.ts            |  2 ++
 src/pages/index.tsx             | 33 +++++-----------------
 src/pages/link/create.tsx       | 17 ++++++------
 src/pages/link/remove/[lid].tsx | 22 +++++++--------
 src/pages/signin.tsx            |  5 ++--
 src/types.d.ts                  |  2 ++
 src/utils/front.ts              | 49 ++-------------------------------
 7 files changed, 33 insertions(+), 97 deletions(-)
 create mode 100644 src/constants/url.ts

diff --git a/src/constants/url.ts b/src/constants/url.ts
new file mode 100644
index 0000000..7edc2c2
--- /dev/null
+++ b/src/constants/url.ts
@@ -0,0 +1,2 @@
+export const VALID_URL_REGEX =
+  /^(?:http(s)?:\/\/)[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.\%]+$/;
diff --git a/src/pages/index.tsx b/src/pages/index.tsx
index 6ec8d81..490568d 100644
--- a/src/pages/index.tsx
+++ b/src/pages/index.tsx
@@ -13,10 +13,10 @@ import PATHS from "constants/paths";
 import useModal from "hooks/useModal";
 import { Category, Link, SearchItem } from "types";
 
-import { BuildCategory } from "utils/front";
+import getUserCategories from "lib/category/getUserCategories";
+import getUser from "lib/user/getUser";
 import { pushStateVanilla } from "utils/link";
-import prisma from "utils/prisma";
-import { getSessionOrThrow } from "utils/session";
+import { getSession } from "utils/session";
 
 interface HomePageProps {
   categories: Category[];
@@ -187,29 +187,12 @@ function Home(props: HomePageProps) {
 }
 
 export async function getServerSideProps({ req, res, query }) {
-  const session = await getSessionOrThrow(req, res);
+  const session = await getSession(req, res);
   const queryCategoryId = (query?.categoryId as string) || "";
 
-  const user = await prisma.user.findFirstOrThrow({
-    where: {
-      email: session.user.email,
-    },
-  });
-  const categoriesDB = await prisma.category.findMany({
-    include: {
-      links: {
-        where: {
-          authorId: user.id,
-        },
-      },
-      author: true,
-    },
-    where: {
-      authorId: user.id,
-    },
-  });
-
-  if (categoriesDB.length === 0) {
+  const user = await getUser(session);
+  const categories = await getUserCategories(user);
+  if (categories.length === 0) {
     return {
       redirect: {
         destination: PATHS.CATEGORY.CREATE,
@@ -217,11 +200,9 @@ export async function getServerSideProps({ req, res, query }) {
     };
   }
 
-  const categories = categoriesDB.map(BuildCategory);
   const currentCategory = categories.find(
     ({ id }) => id === Number(queryCategoryId)
   );
-
   return {
     props: {
       categories: JSON.parse(JSON.stringify(categories)),
diff --git a/src/pages/link/create.tsx b/src/pages/link/create.tsx
index 7694ee2..aceda9e 100644
--- a/src/pages/link/create.tsx
+++ b/src/pages/link/create.tsx
@@ -10,9 +10,11 @@ import Selector from "components/Selector";
 import TextBox from "components/TextBox";
 
 import useAutoFocus from "hooks/useAutoFocus";
+import getUserCategories from "lib/category/getUserCategories";
+import getUser from "lib/user/getUser";
 import { Category, Link } from "types";
-import { BuildCategory, HandleAxiosError, IsValidURL } from "utils/front";
-import prisma from "utils/prisma";
+import { HandleAxiosError, IsValidURL } from "utils/front";
+import { getSession } from "utils/session";
 
 import styles from "styles/create.module.scss";
 
@@ -110,14 +112,11 @@ function CreateLink({ categories }: { categories: Category[] }) {
 CreateLink.authRequired = true;
 export default CreateLink;
 
-export async function getServerSideProps() {
-  const categoriesDB = await prisma.category.findMany({
-    include: { author: true },
-  });
-  const categories = categoriesDB.map((categoryDB) =>
-    BuildCategory(categoryDB)
-  );
+export async function getServerSideProps({ req, res }) {
+  const session = await getSession(req, res);
+  const user = await getUser(session);
 
+  const categories = await getUserCategories(user);
   if (categories.length === 0) {
     return {
       redirect: {
diff --git a/src/pages/link/remove/[lid].tsx b/src/pages/link/remove/[lid].tsx
index 481e303..6fe10a5 100644
--- a/src/pages/link/remove/[lid].tsx
+++ b/src/pages/link/remove/[lid].tsx
@@ -8,9 +8,11 @@ import FormLayout from "components/FormLayout";
 import PageTransition from "components/PageTransition";
 import TextBox from "components/TextBox";
 
+import getUserLink from "lib/link/getUserLink";
+import getUser from "lib/user/getUser";
 import { Link } from "types";
-import { BuildLink, HandleAxiosError } from "utils/front";
-import prisma from "utils/prisma";
+import { HandleAxiosError } from "utils/front";
+import { getSession } from "utils/session";
 
 import styles from "styles/create.module.scss";
 
@@ -94,14 +96,14 @@ function RemoveLink({ link }: { link: Link }) {
 RemoveLink.authRequired = true;
 export default RemoveLink;
 
-export async function getServerSideProps({ query }) {
+export async function getServerSideProps({ req, res, query }) {
   const { lid } = query;
-  const linkDB = await prisma.link.findFirst({
-    where: { id: Number(lid) },
-    include: { category: true, author: true },
-  });
 
-  if (!linkDB) {
+  const session = await getSession(req, res);
+  const user = await getUser(session);
+
+  const link = await getUserLink(user, Number(lid));
+  if (!link) {
     return {
       redirect: {
         destination: "/",
@@ -109,10 +111,6 @@ export async function getServerSideProps({ query }) {
     };
   }
 
-  const link = BuildLink(linkDB, {
-    categoryId: linkDB.categoryId,
-    categoryName: linkDB.category.name,
-  });
   return {
     props: {
       link: JSON.parse(JSON.stringify(link)),
diff --git a/src/pages/signin.tsx b/src/pages/signin.tsx
index 54dd4f7..44e3aef 100644
--- a/src/pages/signin.tsx
+++ b/src/pages/signin.tsx
@@ -1,4 +1,3 @@
-import { getServerSession } from "next-auth/next";
 import { Provider } from "next-auth/providers";
 import { getProviders, signIn } from "next-auth/react";
 import { NextSeo } from "next-seo";
@@ -6,9 +5,9 @@ import Link from "next/link";
 
 import MessageManager from "components/MessageManager/MessageManager";
 import PATHS from "constants/paths";
+import { getSession } from "utils/session";
 
 import styles from "styles/login.module.scss";
-import { authOptions } from "./api/auth/[...nextauth]";
 
 interface SignInProps {
   providers: Provider[];
@@ -39,7 +38,7 @@ export default function SignIn({ providers }: SignInProps) {
 }
 
 export async function getServerSideProps({ req, res }) {
-  const session = await getServerSession(req, res, authOptions);
+  const session = await getSession(req, res);
   if (session) {
     return {
       redirect: {
diff --git a/src/types.d.ts b/src/types.d.ts
index b8e8a38..b561a77 100644
--- a/src/types.d.ts
+++ b/src/types.d.ts
@@ -1,5 +1,7 @@
 import { User } from "@prisma/client";
 
+// TODO: extend @prisma/client type with Link[] instead of
+// recreate interface (same for Link)
 export interface Category {
   id: number;
   name: string;
diff --git a/src/utils/front.ts b/src/utils/front.ts
index 00dc492..ff5fd25 100644
--- a/src/utils/front.ts
+++ b/src/utils/front.ts
@@ -1,53 +1,8 @@
 import axios from "axios";
-
-import { Category, Link } from "types";
-
-export function BuildCategory({
-  id,
-  name,
-  authorId,
-  author,
-  links = [],
-  createdAt,
-  updatedAt,
-}): Category {
-  return {
-    id,
-    name,
-    links: links.map((link) =>
-      BuildLink(link, { categoryId: id, categoryName: name })
-    ),
-    authorId,
-    author,
-    createdAt,
-    updatedAt,
-  };
-}
-
-export function BuildLink(
-  { id, name, url, authorId, author, favorite, createdAt, updatedAt },
-  { categoryId, categoryName }
-): Link {
-  return {
-    id,
-    name,
-    url,
-    category: {
-      id: categoryId,
-      name: categoryName,
-    },
-    authorId,
-    author,
-    favorite,
-    createdAt,
-    updatedAt,
-  };
-}
+import { VALID_URL_REGEX } from "constants/url";
 
 export function IsValidURL(url: string): boolean {
-  const regex = new RegExp(
-    /^(?:http(s)?:\/\/)[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.\%]+$/
-  );
+  const regex = new RegExp(VALID_URL_REGEX);
   return url.match(regex) ? true : false;
 }
 

From 678da44b802532f1d8e03414d7b7f5dc8756fc86 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 20:17:20 +0200
Subject: [PATCH 07/13] refactor: api link endpoint - edit & delete

---
 src/pages/api/link/[lid].ts        | 82 ++++++++++++++++++++++++++++++
 src/pages/api/link/edit/[lid].ts   | 65 -----------------------
 src/pages/api/link/remove/[lid].ts | 42 ---------------
 3 files changed, 82 insertions(+), 107 deletions(-)
 create mode 100644 src/pages/api/link/[lid].ts
 delete mode 100644 src/pages/api/link/edit/[lid].ts
 delete mode 100644 src/pages/api/link/remove/[lid].ts

diff --git a/src/pages/api/link/[lid].ts b/src/pages/api/link/[lid].ts
new file mode 100644
index 0000000..1d4d621
--- /dev/null
+++ b/src/pages/api/link/[lid].ts
@@ -0,0 +1,82 @@
+import { boolean, number, object, string } from "yup";
+
+import { VALID_URL_REGEX } from "constants/url";
+import { apiHandler } from "lib/api/handler";
+import getUserLink from "lib/link/getUserLink";
+import prisma from "utils/prisma";
+
+export default apiHandler({
+  put: editLink,
+  delete: deleteLink,
+});
+
+const querySchema = object({
+  lid: number().required(),
+});
+
+// FIXME: code duplicated from api/link/create
+const bodySchema = object({
+  name: string()
+    .trim()
+    .required("name is required")
+    .max(32, "name is too long"),
+  url: string()
+    .trim()
+    .required("url is required")
+    .matches(VALID_URL_REGEX, "invalid url format"),
+  categoryId: number().required("categoryId must be a number"),
+  favorite: boolean().default(() => false),
+}).typeError("Missing request Body");
+
+async function editLink({ req, res, user }) {
+  const { lid } = await querySchema.validate(req.query);
+  const { name, url, favorite, categoryId } = await bodySchema.validate(
+    req.body
+  );
+
+  const link = await getUserLink(user, lid);
+  if (!link) {
+    throw new Error("Unable to find link " + lid);
+  }
+
+  if (
+    link.name === name &&
+    link.url === url &&
+    link.favorite === favorite &&
+    link.categoryId === categoryId
+  ) {
+    throw new Error("You must update at least one field");
+  }
+
+  await prisma.link.update({
+    where: { id: Number(lid) },
+    data: {
+      name,
+      url,
+      favorite,
+      categoryId,
+    },
+  });
+
+  return res
+    .status(200)
+    .send({ success: "Link successfully updated", categoryId });
+}
+
+async function deleteLink({ req, res, user }) {
+  const { lid } = await querySchema.validate(req.query);
+
+  const link = await getUserLink(user, lid);
+  if (!link) {
+    throw new Error("Unable to find link " + lid);
+  }
+
+  await prisma.link.delete({
+    where: { id: Number(lid) },
+  });
+
+  return res.send({
+    success: "Link successfully deleted",
+    categoryId: link.categoryId,
+  });
+}
diff --git a/src/pages/api/link/edit/[lid].ts b/src/pages/api/link/edit/[lid].ts
deleted file mode 100644
index b66f192..0000000
--- a/src/pages/api/link/edit/[lid].ts
+++ /dev/null
@@ -1,65 +0,0 @@
-import { NextApiRequest, NextApiResponse } from "next";
-import prisma from "utils/prisma";
-
-// TODO: Ajouter vérification -> l'utilisateur doit changer au moins un champ
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  const { lid } = req.query;
-
-  try {
-    const link = await prisma.link.findFirst({
-      where: { id: Number(lid) },
-    });
-
-    if (!link) {
-      return res.status(400).send({ error: "Lien introuvable" });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de l'édition du lien (link/edit->findLink)",
-    });
-  }
-
-  const name = req.body?.name as string;
-  const url = req.body?.url as string;
-  const favorite = Boolean(req.body?.favorite) || false;
-  const categoryId = Number(req.body?.categoryId);
-
-  if (!name) {
-    return res.status(400).send({ error: "Nom du lien manquant" });
-  }
-
-  if (!url) {
-    return res.status(400).send({ error: "URL du lien manquant" });
-  }
-
-  if (!categoryId) {
-    return res.status(400).send({ error: "Catégorie du lien manquante" });
-  }
-
-  try {
-    await prisma.link.update({
-      where: { id: Number(lid) },
-      data: {
-        name,
-        url,
-        favorite,
-        categoryId,
-      },
-    });
-
-    return res
-      .status(200)
-      .send({ success: "Lien mis à jour avec succès", categoryId });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de l'édition du lien (link/remove->updateLink)",
-    });
-  }
-}
diff --git a/src/pages/api/link/remove/[lid].ts b/src/pages/api/link/remove/[lid].ts
deleted file mode 100644
index ccdb086..0000000
--- a/src/pages/api/link/remove/[lid].ts
+++ /dev/null
@@ -1,42 +0,0 @@
-import { NextApiRequest, NextApiResponse } from "next";
-import prisma from "utils/prisma";
-
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  const { lid } = req.query;
-
-  try {
-    const link = await prisma.link.findFirst({
-      where: { id: Number(lid) },
-    });
-
-    if (!link) {
-      return res.status(400).send({ error: "Lien introuvable" });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la suppression du lien (link/remove->findLink)",
-    });
-  }
-
-  try {
-    const link = await prisma.link.delete({
-      where: { id: Number(lid) },
-    });
-
-    return res.status(200).send({
-      success: "Le lien a été supprimé avec succès",
-      categoryId: link.categoryId,
-    });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la suppression du lien (link/remove->deleteLink)",
-    });
-  }
-}

From f5986d34ad9332f027506ed78830a93330bb6beb Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 20:17:39 +0200
Subject: [PATCH 08/13] refactor: create api link endpoint

---
 src/pages/api/link/create.ts | 126 ++++++++++++-----------------------
 1 file changed, 44 insertions(+), 82 deletions(-)

diff --git a/src/pages/api/link/create.ts b/src/pages/api/link/create.ts
index 02ed944..20a9e2c 100644
--- a/src/pages/api/link/create.ts
+++ b/src/pages/api/link/create.ts
@@ -1,91 +1,53 @@
-import { NextApiRequest, NextApiResponse } from "next";
-import { getServerSession } from "next-auth/next";
+import { boolean, number, object, string } from "yup";
 
+import { apiHandler } from "lib/api/handler";
+import getUserCategory from "lib/category/getUserCategory";
+import getUserLinkByName from "lib/link/getLinkFromCategoryByName";
+
+import { VALID_URL_REGEX } from "constants/url";
 import prisma from "utils/prisma";
-import { authOptions } from "../auth/[...nextauth]";
 
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  const session = await getServerSession(req, res, authOptions); // je sais plus d'où ça vient
-  console.log("session", session);
-  if (!session?.user) {
-    return res.status(400).send({ error: "You must be connected" });
+export default apiHandler({
+  post: createLink,
+});
+
+const bodySchema = object({
+  name: string()
+    .trim()
+    .required("name is required")
+    .max(32, "name is too long"),
+  url: string()
+    .trim()
+    .required("url is required")
+    .matches(VALID_URL_REGEX, "invalid url format"),
+  categoryId: number().required("categoryId must be a number"),
+  favorite: boolean().default(() => false),
+}).typeError("Missing request Body");
+
+async function createLink({ req, res, user }) {
+  const { name, url, favorite, categoryId } = await bodySchema.validate(
+    req.body
+  );
+
+  const link = await getUserLinkByName(user, name, categoryId);
+  if (link) {
+    throw new Error("Link name is already used in this category");
   }
 
-  const name = req.body?.name as string;
-  const url = req.body?.url as string;
-  const favorite = Boolean(req.body?.favorite) || false;
-  const categoryId = Number(req.body?.categoryId);
-
-  if (!name) {
-    return res.status(400).send({ error: "Nom du lien manquant" });
+  const category = await getUserCategory(user, categoryId);
+  if (!category) {
+    throw new Error("Unable to find category " + categoryId);
   }
 
-  if (!url) {
-    return res.status(400).send({ error: "URL du lien manquant" });
-  }
+  await prisma.link.create({
+    data: {
+      name,
+      url,
+      categoryId,
+      favorite,
+      authorId: user.id,
+    },
+  });
 
-  if (!categoryId) {
-    return res.status(400).send({ error: "Catégorie du lien manquante" });
-  }
-
-  try {
-    const link = await prisma.link.findFirst({
-      where: { name, categoryId },
-    });
-
-    if (link) {
-      return res.status(400).send({
-        error: "Un lien avec ce nom existe déjà dans cette catégorie",
-      });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la création du lien (link/create->findLink)",
-    });
-  }
-
-  try {
-    const category = await prisma.category.findFirst({
-      where: { id: categoryId },
-    });
-
-    if (!category) {
-      return res.status(400).send({ error: "Cette catégorie n'existe pas" });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la création du lien (link/create->findCategory)",
-    });
-  }
-
-  try {
-    const { id: authorId } = await prisma.user.findFirstOrThrow({
-      where: { email: session.user.email },
-    });
-    await prisma.link.create({
-      data: {
-        name,
-        url,
-        categoryId,
-        favorite,
-        authorId,
-      },
-    });
-    return res
-      .status(200)
-      .send({ success: "Lien créé avec succès", categoryId });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la création du lien (link/create->createLink)",
-    });
-  }
+  return res.send({ success: "Link successfully created", categoryId });
 }

From e400e688bbc41fba60a397611ba97ac827a63aea Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 23:40:45 +0200
Subject: [PATCH 09/13] refactor: rename api/link/create file

---
 src/pages/api/link/{create.ts => index.ts} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename src/pages/api/link/{create.ts => index.ts} (100%)

diff --git a/src/pages/api/link/create.ts b/src/pages/api/link/index.ts
similarity index 100%
rename from src/pages/api/link/create.ts
rename to src/pages/api/link/index.ts

From a44fcd3dc9ef70e3c8d5fa5f8a94515b72aa7c49 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sat, 3 Jun 2023 23:56:48 +0200
Subject: [PATCH 10/13] refactor: get/create categories endpoints

---
 src/lib/category/getUserCategoryByName.ts | 11 +++++
 src/pages/api/category/create.ts          | 40 -----------------
 src/pages/api/category/index.ts           | 55 ++++++++++++++++-------
 src/utils/api.ts                          | 12 -----
 4 files changed, 49 insertions(+), 69 deletions(-)
 create mode 100644 src/lib/category/getUserCategoryByName.ts
 delete mode 100644 src/pages/api/category/create.ts
 delete mode 100644 src/utils/api.ts

diff --git a/src/lib/category/getUserCategoryByName.ts b/src/lib/category/getUserCategoryByName.ts
new file mode 100644
index 0000000..07b26de
--- /dev/null
+++ b/src/lib/category/getUserCategoryByName.ts
@@ -0,0 +1,11 @@
+import { Category, User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getUserCategoryByName(
+  user: User,
+  name: Category["name"]
+) {
+  return await prisma.category.findFirst({
+    where: { name, authorId: user.id },
+  });
+}
diff --git a/src/pages/api/category/create.ts b/src/pages/api/category/create.ts
deleted file mode 100644
index 054e102..0000000
--- a/src/pages/api/category/create.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import { NextApiRequest, NextApiResponse } from "next";
-
-import { checkMethodAllowedOrThrow } from "utils/api";
-import prisma from "utils/prisma";
-import { getSessionOrThrow } from "utils/session";
-
-export default async function POST(req: NextApiRequest, res: NextApiResponse) {
-  await checkMethodAllowedOrThrow(req, ["post"]);
-  const session = await getSessionOrThrow(req, res);
-
-  const name = req.body?.name as string;
-  if (!name) {
-    throw new Error("Categorie name missing");
-  }
-
-  const category = await prisma.category.findFirst({
-    where: { name },
-  });
-  if (category) {
-    throw new Error("Category name already used");
-  }
-
-  const { id: authorId } = await prisma.user.findFirstOrThrow({
-    where: {
-      email: session.user.email,
-    },
-    select: {
-      id: true,
-    },
-  });
-
-  const categoryCreated = await prisma.category.create({
-    data: { name, authorId },
-  });
-  console.log("là");
-  return res.status(200).send({
-    success: "Category successfully created",
-    categoryId: categoryCreated.id,
-  });
-}
diff --git a/src/pages/api/category/index.ts b/src/pages/api/category/index.ts
index 8538a81..34ec9c4 100644
--- a/src/pages/api/category/index.ts
+++ b/src/pages/api/category/index.ts
@@ -1,20 +1,41 @@
-import { NextApiRequest, NextApiResponse } from "next";
+import { apiHandler } from "lib/api/handler";
+import getUserCategories from "lib/category/getUserCategories";
+import getUserCategoryByName from "lib/category/getUserCategoryByName";
 import prisma from "utils/prisma";
+import { object, string } from "yup";
 
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  try {
-    const categories = await prisma.category.findMany();
-    console.log("request");
-    return res.status(200).send({
-      categories,
-    });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error: "Une erreur est survenue lors de la récupération des catégories",
-    });
-  }
+export default apiHandler({
+  get: getCatgories,
+  post: createCategory,
+});
+
+async function getCatgories({ res, user }) {
+  const categories = await getUserCategories(user);
+  return res.status(200).send({
+    categories,
+  });
+}
+
+const bodySchema = object({
+  name: string()
+    .trim()
+    .required("name is required")
+    .max(32, "name is too long"),
+}).typeError("Missing request Body");
+
+async function createCategory({ req, res, user }) {
+  const { name } = await bodySchema.validate(req.body);
+
+  const category = await getUserCategoryByName(user, name);
+  if (category) {
+    throw new Error("Category name already used");
+  }
+
+  const categoryCreated = await prisma.category.create({
+    data: { name, authorId: user.id },
+  });
+  return res.status(200).send({
+    success: "Category successfully created",
+    categoryId: categoryCreated.id,
+  });
 }
diff --git a/src/utils/api.ts b/src/utils/api.ts
deleted file mode 100644
index 0e23587..0000000
--- a/src/utils/api.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-import { NextApiRequest } from "next";
-
-export function checkMethodAllowedOrThrow(
-  req: NextApiRequest,
-  methods: Array<RequestInit["method"]>
-) {
-  const isMethodAllowed = methods.includes(req.method.toLowerCase());
-  if (!isMethodAllowed) {
-    throw new Error(`Method ${req.method} not allowed`);
-  }
-  return isMethodAllowed;
-}

From 7cd0a92562d6518c2ecac1754bcd3365d5a45585 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sun, 4 Jun 2023 00:12:33 +0200
Subject: [PATCH 11/13] refactor: edit & remove category endpoint

---
 src/pages/api/category/[cid].ts        | 67 ++++++++++++++++++++++++++
 src/pages/api/category/edit/[cid].ts   | 53 --------------------
 src/pages/api/category/remove/[cid].ts | 41 ----------------
 3 files changed, 67 insertions(+), 94 deletions(-)
 create mode 100644 src/pages/api/category/[cid].ts
 delete mode 100644 src/pages/api/category/edit/[cid].ts
 delete mode 100644 src/pages/api/category/remove/[cid].ts

diff --git a/src/pages/api/category/[cid].ts b/src/pages/api/category/[cid].ts
new file mode 100644
index 0000000..4135959
--- /dev/null
+++ b/src/pages/api/category/[cid].ts
@@ -0,0 +1,67 @@
+import { number, object, string } from "yup";
+
+import { apiHandler } from "lib/api/handler";
+import getUserCategory from "lib/category/getUserCategory";
+import prisma from "utils/prisma";
+import getUserCategoryByName from "lib/category/getUserCategoryByName";
+
+export default apiHandler({
+  put: editCategory,
+  delete: deleteCategory,
+});
+
+const querySchema = object({
+  cid: number().required(),
+});
+
+const bodySchema = object({
+  name: string()
+    .trim()
+    .required("name is required")
+    .max(32, "name is too long"),
+}).typeError("Missing request Body");
+
+async function editCategory({ req, res, user }) {
+  const { cid } = await querySchema.validate(req.query);
+  const { name } = await bodySchema.validate(req.body);
+
+  const category = await getUserCategory(user, cid);
+  if (!category) {
+    throw new Error("Unable to find category " + cid);
+  }
+
+  const isCategoryNameAlreadyused = await getUserCategoryByName(user, name);
+  if (isCategoryNameAlreadyused) {
+    throw new Error("Category name already used");
+  }
+
+  if (category.name === name) {
+    throw new Error("New category name must be different");
+  }
+
+  await prisma.category.update({
+    where: { id: cid },
+    data: { name },
+  });
+  return res.send({
+    success: "Category successfully updated",
+    categoryId: category.id,
+  });
+}
+
+async function deleteCategory({ req, res, user }) {
+  const { cid } = await querySchema.validate(req.query);
+
+  const category = await getUserCategory(user, cid);
+  if (!category) {
+    throw new Error("Unable to find category " + cid);
+  }
+
+  await prisma.category.delete({
+    where: { id: cid },
+  });
+  return res.send({
+    success: "Category successfully deleted",
+    categoryId: category.id,
+  });
+}
diff --git a/src/pages/api/category/edit/[cid].ts b/src/pages/api/category/edit/[cid].ts
deleted file mode 100644
index 8c611fa..0000000
--- a/src/pages/api/category/edit/[cid].ts
+++ /dev/null
@@ -1,53 +0,0 @@
-import { NextApiRequest, NextApiResponse } from "next";
-import prisma from "utils/prisma";
-
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  const { cid } = req.query;
-
-  let category;
-  try {
-    category = await prisma.category.findFirst({
-      where: { id: Number(cid) },
-    });
-
-    if (!category) {
-      return res.status(400).send({ error: "Catégorie introuvable" });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de l'édition de la catégorie (category/edit->findCategory)",
-    });
-  }
-
-  const name = req.body?.name as string;
-  if (!name) {
-    return res.status(400).send({ error: "Nom de la catégorie manquante" });
-  } else if (name === category.name) {
-    return res.status(400).send({
-      error: "Le nom de la catégorie doit être différent du nom actuel",
-    });
-  }
-
-  try {
-    const category = await prisma.category.update({
-      where: { id: Number(cid) },
-      data: { name },
-    });
-
-    return res.status(200).send({
-      success: "Catégorie mise à jour avec succès",
-      categoryId: category.id,
-    });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de l'édition de la catégorie (category/edit->updateCategory)",
-    });
-  }
-}
diff --git a/src/pages/api/category/remove/[cid].ts b/src/pages/api/category/remove/[cid].ts
deleted file mode 100644
index 9813535..0000000
--- a/src/pages/api/category/remove/[cid].ts
+++ /dev/null
@@ -1,41 +0,0 @@
-import { NextApiRequest, NextApiResponse } from "next";
-import prisma from "utils/prisma";
-
-export default async function handler(
-  req: NextApiRequest,
-  res: NextApiResponse
-) {
-  const { cid } = req.query;
-
-  try {
-    const category = await prisma.category.findFirst({
-      where: { id: Number(cid) },
-    });
-
-    if (!category) {
-      return res.status(400).send({ error: "Categorie introuvable" });
-    }
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la suppression de la catégorie (category/remove->findCategory)",
-    });
-  }
-
-  try {
-    await prisma.category.delete({
-      where: { id: Number(cid) },
-    });
-
-    return res
-      .status(200)
-      .send({ success: "La catégorie a été supprimée avec succès" });
-  } catch (error) {
-    console.error(error);
-    return res.status(400).send({
-      error:
-        "Une erreur est survenue lors de la suppression de la catégorie (category/remove->deleteCategory)",
-    });
-  }
-}

From 5c2c2de1bd1524da6e701cdd1035b4acafe9040c Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sun, 4 Jun 2023 00:43:02 +0200
Subject: [PATCH 12/13] refactor: update front api endpoints

---
 src/pages/category/create.tsx       |  3 +++
 src/pages/category/edit/[cid].tsx   | 32 ++++++++++++++---------------
 src/pages/category/remove/[cid].tsx | 26 ++++++++++++-----------
 src/pages/link/create.tsx           |  7 ++++---
 src/pages/link/edit/[lid].tsx       | 10 +++++----
 src/pages/link/remove/[lid].tsx     |  7 ++++---
 6 files changed, 47 insertions(+), 38 deletions(-)

diff --git a/src/pages/category/create.tsx b/src/pages/category/create.tsx
index c609806..29eaad3 100644
--- a/src/pages/category/create.tsx
+++ b/src/pages/category/create.tsx
@@ -7,6 +7,7 @@ import FormLayout from "components/FormLayout";
 import PageTransition from "components/PageTransition";
 import TextBox from "components/TextBox";
 
+import PATHS from "constants/paths";
 import useAutoFocus from "hooks/useAutoFocus";
 import { redirectWithoutClientCache } from "utils/client";
 import { HandleAxiosError } from "utils/front";
@@ -36,8 +37,10 @@ function CreateCategory() {
 
     try {
       const { data } = await axios.post("/api/category/create", { name });
+      const { data } = await axios.post(PATHS.API.CATEGORY, { name });
       redirectWithoutClientCache(router, "");
       router.push(`/?categoryId=${data?.categoryId}`);
+      router.push(`${PATHS.HOME}?categoryId=${data?.categoryId}`);
       setSubmitted(true);
     } catch (error) {
       setError(HandleAxiosError(error));
diff --git a/src/pages/category/edit/[cid].tsx b/src/pages/category/edit/[cid].tsx
index 455bec7..d6357ad 100644
--- a/src/pages/category/edit/[cid].tsx
+++ b/src/pages/category/edit/[cid].tsx
@@ -7,10 +7,13 @@ import FormLayout from "components/FormLayout";
 import PageTransition from "components/PageTransition";
 import TextBox from "components/TextBox";
 
+import PATHS from "constants/paths";
 import useAutoFocus from "hooks/useAutoFocus";
+import getUserCategory from "lib/category/getUserCategory";
+import getUser from "lib/user/getUser";
 import { Category } from "types";
-import { BuildCategory, HandleAxiosError } from "utils/front";
-import prisma from "utils/prisma";
+import { HandleAxiosError } from "utils/front";
+import { getSession } from "utils/session";
 
 import styles from "styles/create.module.scss";
 
@@ -35,12 +38,10 @@ function EditCategory({ category }: { category: Category }) {
     nProgress.start();
 
     try {
-      const payload = { name };
-      const { data } = await axios.put(
-        `/api/category/edit/${category.id}`,
-        payload
-      );
-      router.push(`/?categoryId=${data?.categoryId}`);
+      const { data } = await axios.put(`${PATHS.API.CATEGORY}/${category.id}`, {
+        name,
+      });
+      router.push(`${PATHS.HOME}?categoryId=${data?.categoryId}`);
       setSubmitted(true);
     } catch (error) {
       setError(HandleAxiosError(error));
@@ -75,22 +76,21 @@ function EditCategory({ category }: { category: Category }) {
 EditCategory.authRequired = true;
 export default EditCategory;
 
-export async function getServerSideProps({ query }) {
+export async function getServerSideProps({ req, res, query }) {
   const { cid } = query;
-  const categoryDB = await prisma.category.findFirst({
-    where: { id: Number(cid) },
-    include: { links: true, author: true },
-  });
 
-  if (!categoryDB) {
+  const session = await getSession(req, res);
+  const user = await getUser(session);
+
+  const category = await getUserCategory(user, Number(cid));
+  if (!category) {
     return {
       redirect: {
-        destination: "/",
+        destination: PATHS.HOME,
       },
     };
   }
 
-  const category = BuildCategory(categoryDB);
   return {
     props: {
       category: JSON.parse(JSON.stringify(category)),
diff --git a/src/pages/category/remove/[cid].tsx b/src/pages/category/remove/[cid].tsx
index f4ef4e8..8edd906 100644
--- a/src/pages/category/remove/[cid].tsx
+++ b/src/pages/category/remove/[cid].tsx
@@ -8,9 +8,12 @@ import FormLayout from "components/FormLayout";
 import PageTransition from "components/PageTransition";
 import TextBox from "components/TextBox";
 
+import PATHS from "constants/paths";
+import getUserCategory from "lib/category/getUserCategory";
+import getUser from "lib/user/getUser";
 import { Category } from "types";
-import { BuildCategory, HandleAxiosError } from "utils/front";
-import prisma from "utils/prisma";
+import { HandleAxiosError } from "utils/front";
+import { getSession } from "utils/session";
 
 import styles from "styles/create.module.scss";
 
@@ -36,8 +39,8 @@ function RemoveCategory({ category }: { category: Category }) {
     nProgress.start();
 
     try {
-      await axios.delete(`/api/category/remove/${category.id}`);
-      router.push("/");
+      await axios.delete(`${PATHS.API.CATEGORY}/${category.id}`);
+      router.push(PATHS.HOME);
       setSubmitted(true);
     } catch (error) {
       setError(HandleAxiosError(error));
@@ -80,22 +83,21 @@ function RemoveCategory({ category }: { category: Category }) {
 RemoveCategory.authRequired = true;
 export default RemoveCategory;
 
-export async function getServerSideProps({ query }) {
+export async function getServerSideProps({ req, res, query }) {
   const { cid } = query;
-  const categoryDB = await prisma.category.findFirst({
-    where: { id: Number(cid) },
-    include: { links: true, author: true },
-  });
 
-  if (!categoryDB) {
+  const session = await getSession(req, res);
+  const user = await getUser(session);
+
+  const category = await getUserCategory(user, Number(cid));
+  if (!category) {
     return {
       redirect: {
-        destination: "/",
+        destination: PATHS.HOME,
       },
     };
   }
 
-  const category = BuildCategory(categoryDB);
   return {
     props: {
       category: JSON.parse(JSON.stringify(category)),
diff --git a/src/pages/link/create.tsx b/src/pages/link/create.tsx
index aceda9e..71e73ca 100644
--- a/src/pages/link/create.tsx
+++ b/src/pages/link/create.tsx
@@ -9,6 +9,7 @@ import PageTransition from "components/PageTransition";
 import Selector from "components/Selector";
 import TextBox from "components/TextBox";
 
+import PATHS from "constants/paths";
 import useAutoFocus from "hooks/useAutoFocus";
 import getUserCategories from "lib/category/getUserCategories";
 import getUser from "lib/user/getUser";
@@ -51,8 +52,8 @@ function CreateLink({ categories }: { categories: Category[] }) {
 
     try {
       const payload = { name, url, favorite, categoryId };
-      const { data } = await axios.post("/api/link/create", payload);
-      router.push(`/?categoryId=${data?.categoryId}`);
+      const { data } = await axios.post(PATHS.API.LINK, payload);
+      router.push(`${PATHS.HOME}?categoryId=${data?.categoryId}`);
       setSubmitted(true);
     } catch (error) {
       setError(HandleAxiosError(error));
@@ -120,7 +121,7 @@ export async function getServerSideProps({ req, res }) {
   if (categories.length === 0) {
     return {
       redirect: {
-        destination: "/",
+        destination: PATHS.HOME,
       },
     };
   }
diff --git a/src/pages/link/edit/[lid].tsx b/src/pages/link/edit/[lid].tsx
index 678dab3..f7bd793 100644
--- a/src/pages/link/edit/[lid].tsx
+++ b/src/pages/link/edit/[lid].tsx
@@ -12,12 +12,14 @@ import TextBox from "components/TextBox";
 import useAutoFocus from "hooks/useAutoFocus";
 import { Category, Link } from "types";
 import { HandleAxiosError, IsValidURL } from "utils/front";
+import { getSessionOrThrow } from "utils/session";
 
 import getUserCategories from "lib/category/getUserCategories";
 import getUserLink from "lib/link/getUserLink";
 import getUserOrThrow from "lib/user/getUserOrThrow";
+
+import PATHS from "constants/paths";
 import styles from "styles/create.module.scss";
-import { getSessionOrThrow } from "utils/session";
 
 function EditLink({
   link,
@@ -71,8 +73,8 @@ function EditLink({
 
     try {
       const payload = { name, url, favorite, categoryId };
-      const { data } = await axios.put(`/api/link/edit/${link.id}`, payload);
-      router.push(`/?categoryId=${data?.categoryId}`);
+      const { data } = await axios.put(`${PATHS.API.LINK}/${link.id}`, payload);
+      router.push(`${PATHS.HOME}?categoryId=${data?.categoryId}`);
       setSubmitted(true);
     } catch (error) {
       setError(HandleAxiosError(error));
@@ -142,7 +144,7 @@ export async function getServerSideProps({ req, res, query }) {
   if (!link) {
     return {
       redirect: {
-        destination: "/",
+        destination: PATHS.HOME,
       },
     };
   }
diff --git a/src/pages/link/remove/[lid].tsx b/src/pages/link/remove/[lid].tsx
index 6fe10a5..e4d2495 100644
--- a/src/pages/link/remove/[lid].tsx
+++ b/src/pages/link/remove/[lid].tsx
@@ -8,6 +8,7 @@ import FormLayout from "components/FormLayout";
 import PageTransition from "components/PageTransition";
 import TextBox from "components/TextBox";
 
+import PATHS from "constants/paths";
 import getUserLink from "lib/link/getUserLink";
 import getUser from "lib/user/getUser";
 import { Link } from "types";
@@ -34,8 +35,8 @@ function RemoveLink({ link }: { link: Link }) {
     nProgress.start();
 
     try {
-      const { data } = await axios.delete(`/api/link/remove/${link.id}`);
-      router.push(`/?categoryId=${data?.categoryId}`);
+      const { data } = await axios.delete(`${PATHS.API.LINK}/${link.id}`);
+      router.push(`${PATHS.HOME}?categoryId=${data?.categoryId}`);
       setSubmitted(true);
     } catch (error) {
       setError(HandleAxiosError(error));
@@ -106,7 +107,7 @@ export async function getServerSideProps({ req, res, query }) {
   if (!link) {
     return {
       redirect: {
-        destination: "/",
+        destination: PATHS.HOME,
       },
     };
   }

From d9757bdc18848631c54108468a697006e21c2d57 Mon Sep 17 00:00:00 2001
From: Sonny <sonnyasdev@gmail.com>
Date: Sun, 4 Jun 2023 00:44:30 +0200
Subject: [PATCH 13/13] feat: disable link to home page when user has 0
 category

---
 src/components/FormLayout.tsx              | 10 +++++++---
 src/components/Links/LinkItem.tsx          |  2 +-
 src/constants/paths.ts                     | 12 ++----------
 src/lib/category/getUserCategoriesCount.ts | 10 ++++++++++
 src/pages/_app.tsx                         |  5 +++--
 src/pages/api/category/[cid].ts            |  4 ++++
 src/pages/category/create.tsx              | 20 +++++++++++++++++---
 7 files changed, 44 insertions(+), 19 deletions(-)
 create mode 100644 src/lib/category/getUserCategoriesCount.ts

diff --git a/src/components/FormLayout.tsx b/src/components/FormLayout.tsx
index be036fd..b552150 100644
--- a/src/components/FormLayout.tsx
+++ b/src/components/FormLayout.tsx
@@ -21,6 +21,7 @@ interface FormProps {
   classBtnConfirm?: string;
 
   children: any;
+  disableHomeLink?: boolean;
 }
 export default function Form({
   title,
@@ -33,6 +34,7 @@ export default function Form({
   textBtnConfirm = "Valider",
   classBtnConfirm = "",
   children,
+  disableHomeLink = false,
 }: FormProps) {
   return (
     <>
@@ -49,9 +51,11 @@ export default function Form({
             {textBtnConfirm}
           </button>
         </form>
-        <Link href={categoryId ? `/?categoryId=${categoryId}` : "/"}>
-          ← Revenir à l'accueil
-        </Link>
+        {!disableHomeLink && (
+          <Link href={categoryId ? `/?categoryId=${categoryId}` : "/"}>
+            ← Revenir à l'accueil
+          </Link>
+        )}
         <MessageManager
           info={infoMessage}
           error={errorMessage}
diff --git a/src/components/Links/LinkItem.tsx b/src/components/Links/LinkItem.tsx
index 0132624..761cc54 100644
--- a/src/components/Links/LinkItem.tsx
+++ b/src/components/Links/LinkItem.tsx
@@ -31,7 +31,7 @@ export default function LinkItem({
       categoryId: link.category.id,
     };
     axios
-      .put(`${PATHS.API.LINK.EDIT}/${link.id}`, payload)
+      .put(`${PATHS.API.LINK}/${link.id}`, payload)
       .then(() => toggleFavorite(link.id))
       .catch(console.error);
   };
diff --git a/src/constants/paths.ts b/src/constants/paths.ts
index ad99d54..73aeb00 100644
--- a/src/constants/paths.ts
+++ b/src/constants/paths.ts
@@ -13,16 +13,8 @@ const PATHS = {
     REMOVE: "/link/remove",
   },
   API: {
-    CATEGORY: {
-      CREATE: "/api/category/create",
-      EDIT: "/api/category/edit",
-      REMOVE: "/api/category/remove",
-    },
-    LINK: {
-      CREATE: "/api/link/create",
-      EDIT: "/api/link/edit",
-      REMOVE: "/api/link/remove",
-    },
+    CATEGORY: "/api/category",
+    LINK: "/api/link",
   },
   NOT_FOUND: "/404",
   SERVER_ERROR: "/505",
diff --git a/src/lib/category/getUserCategoriesCount.ts b/src/lib/category/getUserCategoriesCount.ts
new file mode 100644
index 0000000..88c7418
--- /dev/null
+++ b/src/lib/category/getUserCategoriesCount.ts
@@ -0,0 +1,10 @@
+import { User } from "@prisma/client";
+import prisma from "utils/prisma";
+
+export default async function getUserCategoriesCount(user: User) {
+  return await prisma.category.count({
+    where: {
+      authorId: user.id,
+    },
+  });
+}
diff --git a/src/pages/_app.tsx b/src/pages/_app.tsx
index 2a810e2..26fca70 100644
--- a/src/pages/_app.tsx
+++ b/src/pages/_app.tsx
@@ -7,6 +7,7 @@ import { useHotkeys } from "react-hotkeys-hook";
 
 import AuthRequired from "components/AuthRequired";
 import * as Keys from "constants/keys";
+import PATHS from "constants/paths";
 
 import "nprogress/nprogress.css";
 import "styles/globals.scss";
@@ -14,8 +15,8 @@ import "styles/globals.scss";
 function MyApp({ Component, pageProps: { session, ...pageProps } }) {
   const router = useRouter();
 
-  useHotkeys(Keys.CLOSE_SEARCH_KEY, () => router.push("/"), {
-    enabled: router.pathname !== "/",
+  useHotkeys(Keys.CLOSE_SEARCH_KEY, () => router.push(PATHS.HOME), {
+    enabled: router.pathname !== PATHS.HOME,
     enableOnFormTags: ["INPUT"],
   });
 
diff --git a/src/pages/api/category/[cid].ts b/src/pages/api/category/[cid].ts
index 4135959..322f1e3 100644
--- a/src/pages/api/category/[cid].ts
+++ b/src/pages/api/category/[cid].ts
@@ -57,6 +57,10 @@ async function deleteCategory({ req, res, user }) {
     throw new Error("Unable to find category " + cid);
   }
 
+  if (category.links.length !== 0) {
+    throw new Error("You cannot remove category with links");
+  }
+
   await prisma.category.delete({
     where: { id: cid },
   });
diff --git a/src/pages/category/create.tsx b/src/pages/category/create.tsx
index 29eaad3..01cab7d 100644
--- a/src/pages/category/create.tsx
+++ b/src/pages/category/create.tsx
@@ -12,9 +12,12 @@ import useAutoFocus from "hooks/useAutoFocus";
 import { redirectWithoutClientCache } from "utils/client";
 import { HandleAxiosError } from "utils/front";
 
+import getUserCategoriesCount from "lib/category/getUserCategoriesCount";
+import getUser from "lib/user/getUser";
 import styles from "styles/create.module.scss";
+import { getSession } from "utils/session";
 
-function CreateCategory() {
+function CreateCategory({ categoriesCount }: { categoriesCount: number }) {
   const autoFocusRef = useAutoFocus();
   const router = useRouter();
   const info = useRouter().query?.info as string;
@@ -36,10 +39,8 @@ function CreateCategory() {
     nProgress.start();
 
     try {
-      const { data } = await axios.post("/api/category/create", { name });
       const { data } = await axios.post(PATHS.API.CATEGORY, { name });
       redirectWithoutClientCache(router, "");
-      router.push(`/?categoryId=${data?.categoryId}`);
       router.push(`${PATHS.HOME}?categoryId=${data?.categoryId}`);
       setSubmitted(true);
     } catch (error) {
@@ -58,6 +59,7 @@ function CreateCategory() {
         infoMessage={info}
         canSubmit={canSubmit}
         handleSubmit={handleSubmit}
+        disableHomeLink={categoriesCount === 0}
       >
         <TextBox
           name="name"
@@ -75,3 +77,15 @@ function CreateCategory() {
 
 CreateCategory.authRequired = true;
 export default CreateCategory;
+
+export async function getServerSideProps({ req, res }) {
+  const session = await getSession(req, res);
+  const user = await getUser(session);
+
+  const categoriesCount = await getUserCategoriesCount(user);
+  return {
+    props: {
+      categoriesCount,
+    },
+  };
+}