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

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

model Client {
  id        String   @id @default(cuid())
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  firstName String
  lastName  String
  email     String   @unique
  phone     String?
  address   String?
  notes     String?  @default("")
  customFields Json?
  isActive  Boolean  @default(true)

  pets      Pet[]
  bookings  Booking[]
  invoices  Invoice[]
  messages  Message[]  @relation("ClientMessages")
  pricing   ClientPricing[]

  @@map("clients")
}

model Pet {
  id        String   @id @default(cuid())
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  name      String
  species   String
  breed     String?
  age       Int?
  weight    String?
  color     String?
  tags      String[] @default([])
  notes     String?  @default("")
  customFields Json?
  clientId  String
  client    Client   @relation(fields: [clientId], references: [id], onDelete: Cascade)
  bookings  Booking[] @relation("PetBookings")

  @@map("pets")
}

model Service {
  id           String   @id @default(cuid())
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt
  name         String
  description  String   @default("")
  duration     Int
  basePrice    Float

  perClientPricing ClientPricing[]
  bookings         Booking[]

  @@map("services")
}

model ClientPricing {
  id           String   @id @default(cuid())
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt
  price        Float
  discountType String   @default("none")
  discountValue Float    @default(0)

  serviceId String
  service   Service  @relation(fields: [serviceId], references: [id], onDelete: Cascade)
  clientId  String
  client    Client   @relation(fields: [clientId], references: [id], onDelete: Cascade)

  @@unique([serviceId, clientId])
  @@map("client_pricing")
}

model Booking {
  id            String    @id @default(cuid())
  createdAt     DateTime  @default(now())
  updatedAt     DateTime  @updatedAt
  startAt       DateTime
  endAt         DateTime
  status        BookingStatus @default(scheduled)
  notes         String?   @default("")
  customFields  Json?
  clientId      String
  client        Client    @relation(fields: [clientId], references: [id])
  serviceId     String
  service       Service   @relation(fields: [serviceId], references: [id])
  assignedStaff String?
  priceOverride Float?
  petId         String?
  pet           Pet?      @relation("PetBookings", fields: [petId], references: [id])
  invoice       Invoice?  @relation()
  recurringRule Json?

  @@map("bookings")
}

enum BookingStatus {
  scheduled
  confirmed
  in_progress
  completed
  cancelled
}

model Invoice {
  id                  String       @id @default(cuid())
  createdAt           DateTime     @default(now())
  updatedAt           DateTime     @updatedAt
  invoiceNumber       String       @unique
  dueDate             DateTime
  status              InvoiceStatus @default(draft)
  stripePaymentIntentId String?
  subtotal            Float        @default(0)
  tax                 Float        @default(0)
  total               Float        @default(0)
  notes               String?      @default("")

  clientId    String
  client      Client       @relation(fields: [clientId], references: [id])
  bookingId   String?      @unique
  booking     Booking?     @relation(fields: [bookingId], references: [id])
  invoiceItems InvoiceItem[]

  @@map("invoices")
}

enum InvoiceStatus {
  draft
  sent
  paid
  overdue
  cancelled
}

model InvoiceItem {
  id          String   @id @default(cuid())
  createdAt   DateTime @default(now())
  description String
  quantity    Int      @default(1)
  unitPrice   Float
  amount      Float

  invoiceId   String
  invoice     Invoice  @relation(fields: [invoiceId], references: [id], onDelete: Cascade)

  @@map("invoice_items")
}

model Message {
  id          String   @id @default(cuid())
  createdAt   DateTime @default(now())
  readAt      DateTime?
  content     String
  isFromStaff Boolean  @default(false)

  clientId  String
  client    Client   @relation("ClientMessages", fields: [clientId], references: [id])
  staffId   String

  @@map("messages")
}