// Offerlyst app database (brief §14). Postgres.
generator client {
  provider = "prisma-client-js"
}

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

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?
}

model Shop {
  id                String    @id @default(cuid())
  domain            String    @unique
  planCode          String    @default("free") // free | starter | growth | plus
  currency          String    @default("USD")
  timezone          String    @default("UTC") // IANA
  moneyFormat       String    @default("${{amount}}")
  discountNodeId    String?
  appInstallationId String?
  /// Settings JSON: exclusion tag, combinesWith, bxgy allocation, cart behaviour, design tokens
  settings          Json      @default("{}")
  /// Next offer start/end boundary: the scheduler republishes at this time
  nextSyncAt        DateTime?
  lastPublishedAt   DateTime?
  configBytes       Int       @default(0)
  storefrontBytes   Int       @default(0)
  publishError      String?
  /// Free plan: bundle orders in the current month
  monthKey          String?
  monthOrders       Int       @default(0)
  reviewPromptShown Boolean   @default(false)
  installedAt       DateTime  @default(now())
  uninstalledAt     DateTime?
  offers            Offer[]
  usages            OrderUsage[]
  audit             AuditLog[]
}

model Offer {
  id            String       @id @default(cuid())
  shopId        String
  shop          Shop         @relation(fields: [shopId], references: [id], onDelete: Cascade)
  /// short id used in the function config and storefront data
  code          String
  handle        String
  oldHandles    String[]     @default([])
  name          String
  badge         String?
  description   String?
  /// { "fr": { "name": "...", "badge": "...", "description": "..." } }
  i18n          Json         @default("{}")
  sequence      Int          @default(10)
  active        Boolean      @default(true)
  published     Boolean      @default(false)
  /// ISO country codes (market targeting); empty = everywhere
  countries     String[]     @default([])
  type          String       @default("fixed") // fixed | mix | bxgy
  discountType  String       @default("percent") // percent | amount | fixed_price
  discountValue Decimal      @default(0) @db.Decimal(12, 2)
  mixQty        Int          @default(3)
  buyQty        Int          @default(2)
  getQty        Int          @default(1)
  getPercent    Decimal      @default(100) @db.Decimal(5, 2)
  startsAt      DateTime?
  endsAt        DateTime?
  maxPerOrder   Int          @default(0)
  showHome      Boolean      @default(true)
  showProduct   Boolean      @default(true)
  showCartHints Boolean      @default(true)
  imageUrl      String?
  /// Unpublished automatically because the plan limit was exceeded
  limitedByPlan Boolean      @default(false)
  createdAt     DateTime     @default(now())
  updatedAt     DateTime     @updatedAt
  lines         OfferLine[]
  scopes        OfferScope[]
  usages        OrderUsage[]

  @@unique([shopId, code])
  @@unique([shopId, handle])
  @@index([shopId, sequence])
}

model OfferLine {
  id        String  @id @default(cuid())
  offerId   String
  offer     Offer   @relation(fields: [offerId], references: [id], onDelete: Cascade)
  sequence  Int     @default(10)
  productId String
  /// null = any variant of the product
  variantId String?
  quantity  Int     @default(1)
  /// display cache (from the resource picker / products webhooks)
  title     String?
  handle    String?
  imageUrl  String?
}

model OfferScope {
  id      String  @id @default(cuid())
  offerId String
  offer   Offer   @relation(fields: [offerId], references: [id], onDelete: Cascade)
  role    String // mix | buy | get
  kind    String // product | variant | collection
  refId   String // numeric id
  /// product id for variants
  parentId String?
  title   String?
  handle  String?
  imageUrl String?

  @@index([offerId, role])
}

model OrderUsage {
  id            String   @id @default(cuid())
  shopId        String
  shop          Shop     @relation(fields: [shopId], references: [id], onDelete: Cascade)
  /// keyed hash of the Shopify order id (app/lib/crypto.server.ts)
  orderId       String
  /// AES-GCM encrypted order id, for the admin link
  orderRef      String?
  /// AES-GCM encrypted order number (#1001)
  orderName     String?
  offerId       String?
  offer         Offer?   @relation(fields: [offerId], references: [id], onDelete: SetNull)
  offerName     String
  discount      Decimal  @db.Decimal(12, 2)
  bundleRevenue Decimal  @db.Decimal(12, 2)
  orderTotal    Decimal  @db.Decimal(12, 2)
  currency      String
  createdAt     DateTime @default(now())

  @@unique([shopId, orderId, offerName])
  @@index([shopId, createdAt])
}

/// Orders without a bundle, for the "AOV with vs without bundles" metric
model OrderStat {
  id         String   @id @default(cuid())
  shopId     String
  /// keyed hash of the Shopify order id
  orderId    String
  total      Decimal  @db.Decimal(12, 2)
  hasBundle  Boolean
  currency   String
  createdAt  DateTime @default(now())

  @@unique([shopId, orderId])
  @@index([shopId, createdAt])
}

model AuditLog {
  id        String   @id @default(cuid())
  shopId    String
  shop      Shop     @relation(fields: [shopId], references: [id], onDelete: Cascade)
  offerId   String?
  staffUser String?
  field     String
  oldValue  String?
  newValue  String?
  at        DateTime @default(now())

  @@index([shopId, offerId, at])
}