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

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

enum EquipmentStatus {
  Active
  Repair
  Reserve
  WriteOff
}

enum laborOperation {
  Manual
  MachineManual
  Machine
}

enum EnumPeriodicityTO {
  Ежедневное
  Еженедельное
  Ежемесячное
  Полугодовое
  Годовое
}

enum Role {
  Исполнитель
  Подписант
  Пользователь
}

enum CategoryPart {
  Расходник
  Запчасть
  Инструмент
  Спецодежда
}

enum EquipmentType {
  Производственное
  Энергетическое
  Насосное
  Компрессорное
}

enum RepairKind {
  TO
  TR
  TRE
  KR
  AR
  MP
}

enum RepairOrderStatus {
  Draft
  Approved
  InWork
  Done
  Cancelled
}

model Equipment {
  id                         String            @id @default(uuid())
  name                       String
  serialNumber               String
  dateOfInspection           DateTime?         @db.Date
  inventoryNumber            String            @unique
  equipmentType              EquipmentType
  periodicityTO              EnumPeriodicityTO
  status                     EquipmentStatus   @default(Active)
  commissionedAt             DateTime?         @db.Date
  totalEngineHours           Decimal?
  engineHoursSinceLastRepair Decimal?
  lastRepairAt               DateTime?         @db.Date
  notes                      String?
  workAsPartOf               laborOperation?
  fuelСonsumed              Float?

  // Relations
  repairOrders             RepairOrder[]
  changeEquipmentStatuses  ChangeEquipmentStatus[]
  consumptionRegistrations ConsumptionRegistration[]
  maintenancePlannings     MaintenancePlanning[]

  // Indexes
  @@index([inventoryNumber])
  @@index([serialNumber])
  @@index([equipmentType])
  @@index([status])
  @@index([dateOfInspection])
}

model Employee {
  code        String @id
  fullName    String
  role        Role
  position    String
  price       Float?
  phoneNumber Float?

  // Self-referential relations for hierarchy
  boss         Employee?  @relation("EmployeeHierarchy", fields: [bossCode], references: [code])
  bossCode     String?
  subordinates Employee[] @relation("EmployeeHierarchy")

  // Relations to other models
  confirmationDocuments ConfirmationDocument[]
  resourceNeeds         ResourceNeeds[]
  categoryResources     CategoryResource[]
}

model Part {
  id           String        @id @default(uuid())
  name         String
  categories   CategoryPart?
  price        Float?
  description  String?
  serialNumber String?

  // Relations
  resourceNeeds     ResourceNeeds[]
  categoryResources CategoryResource[]
}

model CategoryResource {
  id String @id @default(uuid())

  // Relations
  part         Part?     @relation(fields: [partId], references: [id])
  partId       String?
  employee     Employee? @relation(fields: [employeeCode], references: [code])
  employeeCode String?
}

model PriceList {
  id                 String @id @default(uuid())
  costOfWorkingHours Float?
  partPrice          Float?
}

model RepairOrder {
  id                  String            @id @default(uuid())
  number              String            @unique
  date                DateTime          @db.Date
  equipment           Equipment         @relation(fields: [equipmentId], references: [id])
  equipmentId         String
  repairKind          RepairKind
  status              RepairOrderStatus @default(Draft)
  plannedAt           DateTime          @db.Date
  startedAt           DateTime?         @db.Date
  completedAt         DateTime?         @db.Date
  contractor          String?
  engineHoursAtRepair Decimal?
  description         String?
  notes               String?
  confirmed           Boolean?

  // Relations
  confirmationDocuments ConfirmationDocument[]

  // Indexes
  @@index([date])
  @@index([plannedAt])
  @@index([status])
}

model ChangeEquipmentStatus {
  id          String          @id @default(uuid())
  equipment   Equipment       @relation(fields: [equipmentId], references: [id])
  equipmentId String
  newStatus   EquipmentStatus
  number      String?
  comment     String?
  date        DateTime        @db.Date
  responsible String?
  document    String? // Storing file path or reference

  // Indexes
  @@index([date])
  @@index([newStatus])
}

model ConfirmationDocument {
  id          String      @id @default(uuid())
  number      String?
  date        DateTime    @db.Date
  manager     Employee    @relation(fields: [managerCode], references: [code])
  managerCode String
  order       RepairOrder @relation(fields: [orderId], references: [id])
  orderId     String
  confirmed   Boolean?

  // Indexes
  @@index([date])
  @@index([confirmed])
}

model ConsumptionRegistration {
  id               String    @id @default(uuid())
  number           String?
  date             DateTime  @db.Date
  equipment        Equipment @relation(fields: [equipmentId], references: [id])
  equipmentId      String
  totalEngineHours Decimal?
  fuelConsumption  Float?

  // Indexes
  @@index([date])
}

model MaintenancePlanning {
  id          String     @id @default(uuid())
  date        DateTime   @db.Date
  equipment   Equipment  @relation(fields: [equipmentId], references: [id])
  equipmentId String
  repairKind  RepairKind

  // Indexes
  @@index([date])
  @@index([repairKind])
}

model ResourceNeeds {
  id String @id @default(uuid())

  // Many-to-many relations
  employees Employee[]
  parts     Part[]
}

model MoneyNeeds {
  id        String @id @default(uuid())
  employees Float?
  part      Float?
}