// use prisma-8

model Supplier {
  id         Int               @id @default(autoincrement())
  name       String
  phone      String?
  email      String?
  address    String?
  taxId      String?
  lastSupply TimestamptzString?
  createdAt  TimestamptzString @default(now())

  products Product[]

  @@map("supplier")
}

model Product {
  id          Int               @id @default(autoincrement())
  name        String
  description String?
  sku         String            @unique
  barcode     String?           @unique
  unit        String            @default("pza")
  status      String            @default("active")
  minStock    Int               @default(0)
  imageUrl    String?
  createdAt   TimestamptzString @default(now())
  updatedAt   temporal.updatedAtString()

  supplierId Int?
  supplier   Supplier? @relation(fields: [supplierId], references: [id])

  categories ProductCategory[]
  warehouses Warehouse[]
  history    ProductHistory[]
  movements  InventoryMovement[]

  @@map("product")
}

model Category {
  id        Int               @id @default(autoincrement())
  name      String
  createdAt TimestamptzString @default(now())

  products ProductCategory[]

  @@map("category")
}

model ProductCategory {
  productId  Int
  categoryId Int

  product  Product  @relation(fields: [productId], references: [id])
  category Category @relation(fields: [categoryId], references: [id])

  @@id([productId, categoryId])
  @@map("product_category")
}

model Inventory {
  id      Int     @id @default(autoincrement())
  name    String
  address String?

  warehouses Warehouse[]
  movements  InventoryMovement[]
  sessions   CashRegisterSession[]

  @@map("inventory")
}

model Warehouse {
  inventoryId Int
  productId   Int
  stock       Int @default(0)

  inventory Inventory @relation(fields: [inventoryId], references: [id])
  product   Product   @relation(fields: [productId], references: [id])

  @@id([inventoryId, productId])
  @@map("warehouse")
}

model InventoryMovement {
  id          Int               @id @default(autoincrement())
  productId   Int
  inventoryId Int
  type        String
  quantity    Int
  reason      String?
  createdAt   TimestamptzString @default(now())

  userId Int?
  user   User? @relation(fields: [userId], references: [id])

  product   Product   @relation(fields: [productId], references: [id])
  inventory Inventory @relation(fields: [inventoryId], references: [id])

  @@map("inventory_movement")
}

model ProductHistory {
  id        Int               @id @default(autoincrement())
  productId Int
  unitPrice Decimal
  costUnit  Decimal
  status    String
  createdAt TimestamptzString @default(now())
  soldAt    TimestamptzString?

  product      Product       @relation(fields: [productId], references: [id])
  cartProducts CartProduct[]

  @@map("product_history")
}

model ShopCart {
  id         Int               @id @default(autoincrement())
  totalPrice Decimal
  discount   Decimal           @default(0)
  status     String            @default("open")
  createdAt  TimestamptzString @default(now())

  userId     Int?
  user       User? @relation(fields: [userId], references: [id])
  customerId Int?
  customer   Customer? @relation(fields: [customerId], references: [id])

  items    CartProduct[]
  payments Payment[]

  @@map("shop_cart")
}

model Customer {
  id        Int               @id @default(autoincrement())
  name      String
  phone     String?
  email     String?
  taxId     String?
  createdAt TimestamptzString @default(now())

  carts ShopCart[]

  @@map("customer")
}

model CashRegisterSession {
  id           Int                @id @default(autoincrement())
  inventoryId  Int
  openedById   Int
  closedById   Int?
  openingCash  Decimal
  closingCash  Decimal?
  expectedCash Decimal?
  status       String             @default("open")
  openedAt     TimestamptzString  @default(now())
  closedAt     TimestamptzString?

  inventory Inventory @relation(fields: [inventoryId], references: [id])
  openedBy  User      @relation("SessionOpenedBy", fields: [openedById], references: [id])
  closedBy  User?     @relation("SessionClosedBy", fields: [closedById], references: [id])
  movements CashMovement[]

  @@map("cash_register_session")
}

model CashMovement {
  id        Int               @id @default(autoincrement())
  sessionId Int
  type      String
  amount    Decimal
  reason    String?
  createdAt TimestamptzString @default(now())

  userId Int?
  user   User? @relation(fields: [userId], references: [id])

  session CashRegisterSession @relation(fields: [sessionId], references: [id])

  @@map("cash_movement")
}

model CartProduct {
  cartId    Int
  historyId Int
  quantity  Int

  cart    ShopCart       @relation(fields: [cartId], references: [id])
  history ProductHistory @relation(fields: [historyId], references: [id])

  @@id([cartId, historyId])
  @@map("cart_products")
}

model User {
  id        Int               @id @default(autoincrement())
  name      String
  email     String            @unique
  role      String
  password  String
  createdAt TimestamptzString @default(now())
  updatedAt temporal.updatedAtString()

  carts               ShopCart[]
  payments            Payment[]
  inventoryMovements  InventoryMovement[]
  openedSessions      CashRegisterSession[] @relation("SessionOpenedBy")
  closedSessions      CashRegisterSession[] @relation("SessionClosedBy")
  cashMovements       CashMovement[]
  openedOperatingDays OperatingDay[]        @relation("OperatingDayOpenedBy")
  closedOperatingDays OperatingDay[]        @relation("OperatingDayClosedBy")

  @@map("user")
}

model OperatingDay {
  id         Int                @id @default(autoincrement())
  date       TimestamptzString  @default(now())
  status     String             @default("open")
  openedById Int
  closedById Int?
  openedAt   TimestamptzString  @default(now())
  closedAt   TimestamptzString?

  openedBy User  @relation("OperatingDayOpenedBy", fields: [openedById], references: [id])
  closedBy User? @relation("OperatingDayClosedBy", fields: [closedById], references: [id])

  @@map("operating_day")
}

model Payment {
  id            Int    @id @default(autoincrement())
  cartId        Int
  userId        Int
  amount        Decimal
  orderId       Int?
  terminalId    Int?
  status        String
  paid          Boolean @default(false)
  paymentMethod String
  paidAt        TimestamptzString?
  createdAt     TimestamptzString @default(now())

  cart ShopCart @relation(fields: [cartId], references: [id])
  user User     @relation(fields: [userId], references: [id])

  @@map("payment")
}