// 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 = "sqlite"
  url      = "file:./dev.db"
}

model Song {
  id          String   @id @default(uuid())
  youtubeId   String   @unique
  title       String
  channelName String
  thumbnail   String
  duration    Int      // in seconds
  addedAt     DateTime @default(now())
  isInLibrary Boolean  @default(true)  // If false, only exists in playlists
  
  playlistSongs PlaylistSong[]
}

model Playlist {
  id        String   @id @default(uuid())
  name      String
  createdAt DateTime @default(now())
  
  playlistSongs PlaylistSong[]
}

model PlaylistSong {
  id         String   @id @default(uuid())
  playlistId String
  songId     String
  addedAt    DateTime @default(now())
  
  playlist Playlist @relation(fields: [playlistId], references: [id], onDelete: Cascade)
  song     Song     @relation(fields: [songId], references: [id], onDelete: Cascade)
  
  @@unique([playlistId, songId])
}