datasource db {
  provider = "sqlite"
  url      = "file:./dev.db"
}

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

model User {
  id        String    @id @default(uuid())
  username  String    @unique
  password  String
  sessions  Session[]
  chats     Chat[]
}

model Session {
  id           String    @id @default(uuid())
  userId       String
  user         User      @relation(fields: [userId], references: [id])
  language     String?
  lastLogin    DateTime
  currentChatId String?
}

model Chat {
  id           String    @id
  participants User[]
  messages     Message[]
}

model Message {
  id        String   @id @default(uuid())
  chatId    String
  chat      Chat     @relation(fields: [chatId], references: [id])
  senderId  String
  content   String
  timestamp DateTime @default(now())
}