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

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

model User {
  id            Int            @id @default(autoincrement())
  email         String         @unique
  username      String         @unique
  password      String
  name          String?
  role          String         @default("admin")
  createdAt     DateTime       @default(now())
  updatedAt     DateTime       @updatedAt
  conversations Conversation[]
}

model Category {
  id          Int      @id @default(autoincrement())
  name        String   @unique
  icon        String?
  description String?
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  agents      Agent[]
}

model Agent {
  id            Int            @id @default(autoincrement())
  name          String
  slug          String         @unique
  description   String
  icon          String?
  categoryId    Int?
  features         String         @default("")
  hotQuestions     String         @default("[]")
  quickQuestions   String         @default("[]")
  usageCount       Int            @default(0)
  status           String         @default("active")
  createdAt     DateTime       @default(now())
  updatedAt     DateTime       @updatedAt
  category      Category?      @relation(fields: [categoryId], references: [id])
  conversations Conversation[]
}

model News {
  id        Int      @id @default(autoincrement())
  title     String
  content   String
  type      String   @default("news")
  published Boolean  @default(false)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model Conversation {
  id        Int       @id @default(autoincrement())
  agentId   Int
  userId    Int?
  title     String    @default("新对话")
  createdAt DateTime  @default(now())
  updatedAt DateTime  @updatedAt
  user      User?     @relation(fields: [userId], references: [id])
  agent     Agent     @relation(fields: [agentId], references: [id], onDelete: Cascade)
  messages  Message[]
}

model Message {
  id             Int          @id @default(autoincrement())
  conversationId Int
  role           String
  content        String
  timestamp      DateTime     @default(now())
  createdAt      DateTime     @default(now())
  updatedAt      DateTime     @updatedAt
  conversation   Conversation @relation(fields: [conversationId], references: [id], onDelete: Cascade)
}