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

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

model Device {
  id          String   @id @default(uuid())
  name        String
  ipAddress   String
  port        Int      @default(80)
  enabled     Boolean  @default(true)
  lastSeenAt  DateTime?
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  
  groups      GroupDevice[]
}

model Group {
  id          String   @id @default(uuid())
  name        String
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  
  devices     GroupDevice[]
  schedules   Schedule[]
}

model GroupDevice {
  groupId     String
  deviceId    String
  
  group       Group    @relation(fields: [groupId], references: [id], onDelete: Cascade)
  device      Device   @relation(fields: [deviceId], references: [id], onDelete: Cascade)
  
  @@id([groupId, deviceId])
}

model Schedule {
  id              String   @id @default(uuid())
  name            String
  groupId         String
  type            String   // 'PRESET' | 'PLAYLIST'
  cronExpression  String
  endCronExpression String? // Optional: turn off lights at this time
  timezone        String   @default("Europe/London")
  enabled         Boolean  @default(true)
  actionPayload   String   // JSON string
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt
  
  group           Group    @relation(fields: [groupId], references: [id])
}