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

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

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

// ---------------------------------------------------------------------------
// Session — used by @shopify/shopify-app-session-storage-prisma.
// DO NOT change the shape of this model (the session storage depends on it).
// ---------------------------------------------------------------------------
model Session {
  id                  String    @id
  shop                String
  state               String
  isOnline            Boolean   @default(false)
  scope               String?
  expires             DateTime?
  accessToken         String
  userId              BigInt?
  firstName           String?
  lastName            String?
  email               String?
  accountOwner        Boolean   @default(false)
  locale              String?
  collaborator        Boolean?  @default(false)
  emailVerified       Boolean?  @default(false)
  refreshToken        String?
  refreshTokenExpires DateTime?
}

// ---------------------------------------------------------------------------
// Multi-tenant app models. Every tenant-scoped row carries `shop` + an index
// on it (public-grade isolation from day 1, even with only 2-3 custom stores).
// ---------------------------------------------------------------------------

// Per-shop merchant configuration for the withdrawal button/flow.
model Settings {
  id                 String   @id @default(cuid())
  shop               String   @unique
  buttonLabel        String   @default("Recedere dal contratto qui")
  confirmLabel       String   @default("Conferma recesso")
  brandPrimaryColor  String?
  returnAddress      String?
  defaultWindowDays  Int      @default(14)
  withdrawalInfoText String?
  emailSubject       String?
  emailIntro         String?
  emailNote          String?
  notifyEnabled      Boolean  @default(true)
  notifyEmail        String?
  tagEnabled         Boolean  @default(true)
  enforceWindow      Boolean  @default(false)
  enforceExclusions  Boolean  @default(false)
  stateAwareEmail    Boolean  @default(true)
  autoCancelUnfulfilled Boolean @default(false)
  returnAtCustomerExpense Boolean @default(true)
  returnInstructions String?
  createdAt          DateTime @default(now())
  updatedAt          DateTime @updatedAt

  @@index([shop])
}

// Art. 59 exclusions (made-to-order, perishable, sealed-for-hygiene, etc.).
model ExclusionRule {
  id        String          @id @default(cuid())
  shop      String
  scope     ExclusionScope
  targetId  String?
  reason    ExclusionReason
  active    Boolean         @default(true)
  createdAt DateTime        @default(now())

  @@index([shop])
}

// A withdrawal (recesso) statement submitted by a consumer.
model WithdrawalRequest {
  id              String            @id @default(cuid())
  shop            String
  orderId         String
  orderName       String?
  customerName    String
  email           String
  statementText   String
  transmittedAt   DateTime // legal timestamp of transmission (Art. 54-bis)
  locale          String?
  channel         WithdrawalChannel
  productType     String?
  status          WithdrawalStatus  @default(RECEIVED)
  receiptSentAt   DateTime?
  computedDeadline DateTime?
  shopifyReturnId String? // GID del Reso Shopify creato (se ordine evaso)
  createdAt       DateTime          @default(now())
  updatedAt       DateTime          @updatedAt

  @@index([shop])
  @@index([shop, orderId])
}

// Append-only audit trail (burden of proof — Art. 54-bis / R6). No updatedAt.
model AuditLog {
  id          String   @id @default(cuid())
  shop        String
  event       String
  payloadHash String?
  detail      String?
  createdAt   DateTime @default(now())

  @@index([shop])
}

// Webhook idempotency ledger.
model WebhookEvent {
  id         String   @id @default(cuid())
  shop       String
  topic      String
  webhookId  String?  @unique
  receivedAt DateTime @default(now())
  processed  Boolean  @default(false)

  @@index([shop])
}

// ---------------------------------------------------------------------------
// Enums
// ---------------------------------------------------------------------------

enum ExclusionScope {
  PRODUCT
  COLLECTION
  TAG
  ALL
}

enum ExclusionReason {
  CUSTOM
  PERISHABLE
  HYGIENE
  OTHER
}

enum WithdrawalChannel {
  GUEST
  ACCOUNT
}

enum WithdrawalStatus {
  RECEIVED
  ACKNOWLEDGED
  GOODS_PENDING
  CLOSED
  REJECTED
}