Add broken prisma schema

prisma/schema.prisma

@@ -0,0 +1,47 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+model User {
+    id    Int    @id @default(autoincrement())
+    email String @unique
+    role  Role   @default(USER)
+    orders Order[]
+}
+
+model Restaurant {
+    id          Int     @id @default(autoincrement())
+    name        String  @unique
+    description String?
+    pizzas Pizza[]
+}
+
+model Pizza {
+    id          Int     @id @default(autoincrement())
+    name        String  @unique
+    description String?
+    restaurant Restaurant @relation(fields: [restaurantId], references: [id])
+    restaurantId Int
+}
+
+model Order {
+    id Int @id @default(autoincrement())
+    user User @relation(fields: [userId], references: [id])
+    userId Int
+    pizza Pizza @relation(fields: [pizzaId], references: [id])
+    pizzaId Int
+    amount Int
+}
+
+enum Role {
+    USER
+    ADMIN
+}