model SalesInvoice {
  id           String   @id @default(uuid())
  code         String   @unique @db.VarChar(100)
  total_amount Decimal  @db.Decimal(15, 2)
  description  String?  @db.Text
  created_at   DateTime @default(now()) @db.Timestamp(0)
  updated_at   DateTime @updatedAt @db.Timestamp(0)
  customer_id  String?
  account_id   String
  complex_id   String

  customer               Customer?             @relation(fields: [customer_id], references: [id])
  items                  SalesInvoiceItem[]
  sales_invoice_payments SalesInvoicePayment[]

  @@index([customer_id])
  @@map("sales_invoices")
}

model SalesInvoiceItem {
  id           String   @id @default(uuid())
  count        Decimal  @db.Decimal(10, 0)
  unit_price   Decimal  @default(0.00) @db.Decimal(15, 2)
  total_amount Decimal  @default(0.00) @db.Decimal(15, 2)
  created_at   DateTime @default(now()) @db.Timestamp(0)
  invoice_id   String
  good_id      String
  service_id   String

  invoice SalesInvoice @relation(fields: [invoice_id], references: [id])
  good    Good?        @relation(fields: [good_id], references: [id])
  service Service?     @relation(fields: [service_id], references: [id])

  @@index([invoice_id, good_id])
  @@map("sales_invoice_items")
}

model SalesInvoicePayment {
  id             String            @id @default(uuid())
  invoice_id     String
  amount         Decimal           @db.Decimal(15, 2)
  payment_method PaymentMethodType
  paid_at        DateTime
  created_at     DateTime          @default(now())

  invoice SalesInvoice @relation(fields: [invoice_id], references: [id])

  @@index([invoice_id])
  @@map("sales_invoice_payments")
}