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

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

datasource db {
  provider = "postgresql"
}

model Book {
  id           Int      @id @default(autoincrement())
  title        String   @db.VarChar(500)
  author       String?  @db.VarChar(500)
  totalPages   Int
  coverUrl     String?  @db.VarChar(1000)
  deadlineDate DateTime @db.Date
  isPrimary    Boolean  @default(false)
  status       String   @default("reading") @db.VarChar(50)
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt

  readingLogs ReadingLog[]

  @@index([deadlineDate])
  @@index([status])
}

model ReadingLog {
  id          Int      @id @default(autoincrement())
  bookId      Int
  logDate     DateTime @db.Date
  currentPage Int
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  book Book @relation(fields: [bookId], references: [id], onDelete: Cascade)

  @@unique([bookId, logDate])
  @@index([bookId])
  @@index([logDate])
}