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

// Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
// Try Prisma Accelerate: https://pris.ly/cli/accelerate-init

generator client {
  provider      = "prisma-client"
  output        = "../src/generated/prisma"
  binaryTargets = ["native", "debian-openssl-1.1.x"]
}

datasource db {
  provider = "postgresql"
}

enum UserRole {
  ADMIN
  MANAGER
  STAFF
  VIEWER
}

model User {
  id          String       @id @default(uuid())
  username    String       @unique
  name        String
  email       String       @unique
  password    String
  role        UserRole     @default(STAFF)
  isActive    Boolean      @default(true)
  createdAt   DateTime     @default(now())
  updatedAt   DateTime     @updatedAt
  movements   Movement[]
  assignments Assignment[]
  person      Person?
}

enum PersonDepartment {
  IT
  ENGINEERING
  LOGISTICS
  TRAFFIC
  DRIVER
  ADMINISTRATION
  SALES
  OTHER
}

model Person {
  id          String            @id @default(uuid())
  firstName   String
  lastName    String
  department  PersonDepartment?
  email       String?           @unique
  phone       String?
  userId      String?           @unique
  user        User?             @relation(fields: [userId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  isActive    Boolean           @default(true)
  createdAt   DateTime          @default(now())
  updatedAt   DateTime          @updatedAt
  assignments Assignment[]
  movements   Movement[]

  @@index([lastName, firstName])
  @@index([department])
}

model Category {
  id          String   @id @default(uuid())
  name        String   @unique
  description String?
  isActive    Boolean  @default(true)
  items       Item[]
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  @@index([name])
}

enum ItemStatus {
  AVAILABLE
  ASSIGNED
  RESERVED
  IN_REPAIR
  BROKEN
  STOLEN
  DISPOSED
}

model Item {
  id          String       @id @default(uuid())
  name        String       @unique
  description String?
  categoryId  String
  category    Category     @relation(fields: [categoryId], references: [id])
  stock       Int          @default(0)
  minStock    Int?
  maxStock    Int?
  createdAt   DateTime     @default(now())
  updatedAt   DateTime     @updatedAt
  deletedAt   DateTime?
  movements   Movement[]
  assignments Assignment[]
  assets      Asset[]

  @@index([categoryId])
}

model Asset {
  id           String      @id @default(uuid())
  itemId       String?
  item         Item?       @relation(fields: [itemId], references: [id])
  serialNumber String      @unique
  deliveryNote String?
  status       ItemStatus  @default(AVAILABLE)
  notes        String?
  createdAt    DateTime    @default(now())
  updatedAt    DateTime    @updatedAt
  movements    Movement[]
  assignment   Assignment?

  @@index([serialNumber])
  @@index([itemId])
  @@index([status])
}

model Assignment {
  id             String     @id @default(uuid())
  quantity       Int?
  notes          String?
  itemId         String?
  item           Item?      @relation(fields: [itemId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  assetId        String?    @unique
  asset          Asset?     @relation(fields: [assetId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  recipientId    String?
  person          Person?    @relation(fields: [recipientId], references: [id], onDelete: Cascade, onUpdate: Cascade)
  assignmentDate DateTime   @default(now())
  returnDate     DateTime?
  createdBy      String
  createdUser    User       @relation(fields: [createdBy], references: [id])
  createdAt      DateTime   @default(now())
  updatedAt      DateTime   @updatedAt
  movement       Movement[]

  @@index([itemId])
  @@index([assetId])
  @@index([recipientId])
  @@index([createdBy])
}

enum MovementType {
  IN
  OUT
  ASSIGNMENT
  RETURN
  ADJUSTMENT
  DELETED
}

model Movement {
  id            String       @id @default(uuid())
  type          MovementType @default(IN)
  quantity      Int
  details       String?
  notes         String?
  itemId        String?
  item          Item?        @relation(fields: [itemId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  assetId       String?
  asset         Asset?       @relation(fields: [assetId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  previousStock Int?
  newStock      Int?
  recipientId   String?
  person        Person?      @relation(fields: [recipientId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  assignmentId  String?
  assignment    Assignment?  @relation(fields: [assignmentId], references: [id], onDelete: SetNull, onUpdate: Cascade)
  userId        String
  user          User         @relation(fields: [userId], references: [id])
  createdAt     DateTime     @default(now())

  @@index([itemId])
  @@index([assetId])
  @@index([recipientId])
  @@index([type])
  @@index([userId])
}