// This is your Prisma schema file,
// learn more about it in the docs: https://pris.ly/d/prisma-schema

// Ideally, we want to separate usage collection from the metadata, however Prisma does not support
// multiple databases properly. https://github.com/prisma/prisma/issues/2443 solution does not
// generate the proper client.

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

datasource db {
  provider  = "postgresql"
  // Connection pooling URL
  url       = env("DATABASE_URL")
  // Connection pooling is not supported by Prisma migrate yet. So need to use directUrl
  directUrl = env("DATABASE_DIRECT_URL")
}

model Chat {
  id        String    @id @default(cuid())
  createdAt DateTime  @default(now()) @map("created_at")
  model     Json      @default("{}")
  ctx       Json      @default("{}")
  messages  Message[]

  @@index([createdAt], map: "chat_created_at_idx")
  @@map("chat")
}

model Message {
  id        String   @id @default(cuid())
  chat      Chat     @relation(fields: [chatId], references: [id])
  chatId    String   @map("chat_id")
  createdAt DateTime @default(now()) @map("created_at")
  endUser   String   @default("") @map("end_user")
  role      String   @default("")
  content   String   @default("")
  upvote    Boolean  @default(false)
  downvote  Boolean  @default(false)

  @@index([chatId], map: "message_chat_id_idx")
  @@index([createdAt], map: "message_created_at_idx")
  @@index([endUser], map: "message_end_user_idx")
  @@index([role], map: "message_role_idx")
  @@map("message")
}

model Usage {
  id        String   @id @default(cuid())
  createdAt DateTime @default(now()) @map("created_at")
  endUser   String   @default("") @map("end_user")
  count     Int      @default(0)

  @@index([createdAt], map: "usage_created_at_idx")
  @@index([endUser], map: "usage_end_user_idx")
  @@map("usage")
}

model Subscription {
  id         String           @id @default(cuid())
  user       User             @relation(fields: [userId], references: [id])
  userId     String           @default("") @map("user_id")
  // Denormalize to avoid join with the user table
  email      String           @default("") @map("email")
  createdAt  DateTime         @default(now()) @map("created_at")
  canceledAt DateTime?        @map("canceled_at")
  startAt    DateTime         @default(now()) @map("start_at")
  expireAt   DateTime         @default(now()) @map("expire_at")
  plan       SubscriptionPlan

  @@index([userId], map: "subscription_user_id_idx")
  @@index([email], map: "subscription_email_idx")
  @@map("subscription")
}

enum SubscriptionPlan {
  PRO
}

model Payment {
  id          String   @id @default(cuid())
  user        User     @relation(fields: [userId], references: [id])
  userId      String   @default("") @map("user_id")
  // Denormalize to avoid join with the user table
  email       String   @default("") @map("email")
  createdAt   DateTime @default(now()) @map("created_at")
  paymentId   String   @default("") @map("payment_id")
  customerId  String   @default("") @map("customer_id")
  description String   @default("")
  amount      Int      @default(0)
  currency    String   @default("")
  receipt     String   @default("")

  @@unique([paymentId])
  @@index([userId], map: "payment_user_id_idx")
  @@index([email], map: "payment_email_idx")
  @@map("payment")
}

// NextAuth Prisma Schema Begin
// Below are the auth related prisma schema to support NextAuth.js. In partiular, the email flow
// requires this. https://authjs.dev/reference/adapter/prisma
model Account {
  id                String  @id @default(cuid())
  userId            String  @map("user_id")
  type              String
  provider          String
  providerAccountId String  @map("provider_account_id")
  refresh_token     String? @db.Text
  access_token      String? @db.Text
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String? @db.Text
  session_state     String?

  user User @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([provider, providerAccountId])
  @@map("accounts")
}

model Session {
  id           String   @id @default(cuid())
  sessionToken String   @unique @map("session_token")
  userId       String   @map("user_id")
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@map("sessions")
}

model User {
  id            String    @id @default(cuid())
  name          String?
  email         String?   @unique
  emailVerified DateTime? @map("email_verified")
  image         String?
  accounts      Account[]
  sessions      Session[]

  subscriptions Subscription[]
  payments      Payment[]
  // The stripe customer id corresponds to this user
  stripeId      String?        @unique @map("stripe_id")
  createdAt     DateTime       @default(now()) @map("created_at")

  @@index([createdAt], map: "users_created_at_idx")
  @@map("users")
}

model VerificationToken {
  identifier String
  token      String   @unique
  expires    DateTime

  @@unique([identifier, token])
  @@map("verificationtokens")
}

// NextAuth Prisma Schema End