datasource db {
  provider = "sqlite"
}

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

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])
}

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

model User {
  id            String      @id @default(cuid())
  name          String?
  email         String?     @unique
  emailVerified DateTime?
  image         String?
  credits       Int         @default(50)
  customApiKey  String?
  hfUsername    String?
  createdAt     DateTime    @default(now())
  accounts      Account[]
  sessions      Session[]
  chats         Chat[]
  images        UserImage[]
  creations     Creation[]
}

model UserImage {
  id        String   @id @default(cuid())
  userId    String
  url       String
  hfRepo    String?
  hfPath    String?
  createdAt DateTime @default(now())
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@index([userId])
}

model Character {
  id           String   @id @default(cuid())
  name         String
  avatar       String
  profileUrl   String?
  description  String
  personality  String
  systemPrompt String
  greeting     String
  isCustom     Boolean  @default(true)
  isPublic     Boolean  @default(true)
  userId       String?
  createdAt    DateTime @default(now())
  chats        Chat[]

  @@index([isPublic])
  @@index([userId])
}

model Chat {
  id          String    @id @default(cuid())
  characterId String
  userId      String
  createdAt   DateTime  @default(now())
  character   Character @relation(fields: [characterId], references: [id], onDelete: Cascade)
  user        User      @relation(fields: [userId], references: [id], onDelete: Cascade)
  messages    Message[]

  @@index([userId])
  @@index([characterId])
}

model Message {
  id                String   @id @default(cuid())
  chatId            String
  role              String
  content           String
  imageUrl          String?
  model             String?
  promptTokens      Int?
  completionTokens  Int?
  createdAt         DateTime @default(now())
  chat              Chat     @relation(fields: [chatId], references: [id], onDelete: Cascade)

  @@index([chatId])
}

model Creation {
  id           String   @id @default(cuid())
  prompt       String?
  imageUrl     String?
  aspectRatio  String?
  resolution   String?
  createdAt    DateTime @default(now())
  userId       String

  requestId    String?  @unique
  status       String   @default("processing")
  error        String?

  duration     String?
  inputImages  String?
  mode         String?
  modelId      String?
  title        String?
  type         String?
  url          String?

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

model VerificationToken {
  identifier String
  token      String   @unique
  expires    DateTime

  @@unique([identifier, token])
}