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

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

enum EquipmentStatus {
  Active
  Repair
  Reserve
  WriteOff
}

model Equipment {
  id               String                  @id @default(uuid())
  name             String
  serialNumber     String
  dateOfInspection DateTime?
  commissionedAt   DateTime?
  status           EquipmentStatus
  createdAt        DateTime                @default(now())
  updatedAt        DateTime                @updatedAt
  statusChanges    ChangeEquipmentStatus[]

  @@unique([serialNumber])
}

model ChangeEquipmentStatus {
  equipmentId String
  newStatus   EquipmentStatus
  number      String?
  date        DateTime
  responsible String?
  equipment   Equipment       @relation(fields: [equipmentId], references: [id], onDelete: Cascade)

  @@id([equipmentId, newStatus])
  @@map("change_equipment_status")
}