schema.prisma

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

// ========== Main User model compatible with NextAuth ==========
model User {
  id            String     @id @default(cuid())
  email         String?    @unique
  emailVerified DateTime?
  hashedPassword      String?    // used for email/password login
  name          String?
  image         String?
  role          UserRole   @default(CUSTOMER) // user role: CUSTOMER or ADMIN
  // relations
  accounts      Account[]
  sessions      Session[]
  profile       UserProfile?
  balance       UserBalance?
  createdAt     DateTime   @default(now())
  updatedAt     DateTime   @updatedAt
}

// ========== OAuth provider accounts ==========
model Account {
  id                String   @id @default(cuid())
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String?
  access_token      String?
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String?
  session_state     String?
  user              User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  @@unique([provider, providerAccountId])
}

// ========== NextAuth sessions ==========
model Session {
  id           String   @id @default(cuid())
  sessionToken String   @unique
  userId       String
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)
}

// ========== Extended user profile ==========
model UserProfile {
  id          String   @id @default(cuid())
  userId      String   @unique
  firstName   String?
  lastName    String?
  birthDate   DateTime?
  country     String?
  state       String?
  user        User     @relation(fields: [userId], references: [id], onDelete: Cascade)
}

// ========== User balances: SC and GC ==========
model UserBalance {
  id      String   @id @default(cuid())
  userId  String   @unique
  sc      Int      @default(0)
  gc      Int      @default(0)
  user    User     @relation(fields: [userId], references: [id], onDelete: Cascade)
}

// ========== Enum for user roles ==========
enum UserRole {
  ADMIN
  CUSTOMER
}