generator client {
  provider      = "prisma-client-js"
  binaryTargets = ["native", "debian-openssl-3.0.x"]
}

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

model User {
  id           String      @id @default(cuid())
  email        String      @unique
  passwordHash String
  firstName    String
  lastName     String
  isActive     Boolean     @default(true)
  createdAt    DateTime    @default(now())
  updatedAt    DateTime    @updatedAt
  userRoles    UserRole[]
  authSessions AuthSession[] @relation("AuthSessionUser")
  revokedAuthSessions AuthSession[] @relation("AuthSessionRevokedBy")
  contactEntries CrmContactEntry[]
  inventoryTransactions InventoryTransaction[]
  purchaseReceipts PurchaseReceipt[]
  ownedProjects Project[] @relation("ProjectOwner")
  workOrderMaterialIssues WorkOrderMaterialIssue[]
  workOrderCompletions WorkOrderCompletion[]
  approvedSalesQuotes SalesQuote[] @relation("SalesQuoteApprovedBy")
  approvedSalesOrders SalesOrder[] @relation("SalesOrderApprovedBy")
  salesQuoteRevisionsCreated SalesQuoteRevision[] @relation("SalesQuoteRevisionCreatedBy")
  salesOrderRevisionsCreated SalesOrderRevision[] @relation("SalesOrderRevisionCreatedBy")
  purchaseOrderRevisionsCreated PurchaseOrderRevision[]
  inventoryTransfersCreated InventoryTransfer[] @relation("InventoryTransferCreatedBy")
  auditEvents AuditEvent[]
}

model Role {
  id              String           @id @default(cuid())
  name            String           @unique
  description     String
  createdAt       DateTime         @default(now())
  updatedAt       DateTime         @updatedAt
  userRoles       UserRole[]
  rolePermissions RolePermission[]
}

model Permission {
  id              String           @id @default(cuid())
  key             String           @unique
  description     String
  createdAt       DateTime         @default(now())
  updatedAt       DateTime         @updatedAt
  rolePermissions RolePermission[]
}

model UserRole {
  userId      String
  roleId      String
  assignedAt  DateTime @default(now())
  assignedBy  String?
  role        Role     @relation(fields: [roleId], references: [id], onDelete: Cascade)
  user        User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@id([userId, roleId])
}

model RolePermission {
  roleId        String
  permissionId  String
  grantedAt     DateTime   @default(now())
  permission    Permission @relation(fields: [permissionId], references: [id], onDelete: Cascade)
  role          Role       @relation(fields: [roleId], references: [id], onDelete: Cascade)

  @@id([roleId, permissionId])
}

model AuthSession {
  id            String   @id @default(cuid())
  userId        String
  expiresAt     DateTime
  lastSeenAt    DateTime @default(now())
  ipAddress     String?
  userAgent     String?
  revokedAt     DateTime?
  revokedById   String?
  revokedReason String?
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  user          User     @relation("AuthSessionUser", fields: [userId], references: [id], onDelete: Cascade)
  revokedBy     User?    @relation("AuthSessionRevokedBy", fields: [revokedById], references: [id], onDelete: SetNull)

  @@index([userId, createdAt])
  @@index([expiresAt])
  @@index([revokedAt])
}

model CompanyProfile {
  id            String   @id @default(cuid())
  companyName   String
  legalName     String
  email         String
  phone         String
  website       String
  taxId         String
  addressLine1  String
  addressLine2  String
  city          String
  state         String
  postalCode    String
  country       String
  primaryColor  String   @default("#185ADB")
  accentColor   String   @default("#00A6A6")
  surfaceColor  String   @default("#F4F7FB")
  fontFamily    String   @default("Manrope")
  logoFileId    String?  @unique
  isActive      Boolean  @default(true)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  logoFile      FileAttachment? @relation("CompanyLogo", fields: [logoFileId], references: [id], onDelete: SetNull)
}

model FileAttachment {
  id             String          @id @default(cuid())
  originalName   String
  storedName     String
  mimeType       String
  sizeBytes      Int
  relativePath   String
  ownerType      String
  ownerId        String
  createdById    String?
  createdAt      DateTime        @default(now())
  updatedAt      DateTime        @updatedAt
  companyLogoFor CompanyProfile? @relation("CompanyLogo")
}

model InventoryItem {
  id            String   @id @default(cuid())
  sku           String   @unique
  skuFamilyId   String?
  skuNodeId     String?
  skuSequenceNumber Int?
  name          String
  description   String
  type          String
  status        String
  unitOfMeasure String
  isSellable    Boolean  @default(true)
  isPurchasable Boolean  @default(true)
  preferredVendorId String?
  defaultCost   Float?
  defaultPrice  Float?
  notes         String
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  bomLines      InventoryBomLine[] @relation("InventoryBomParent")
  usedInBomLines InventoryBomLine[] @relation("InventoryBomComponent")
  inventoryTransactions InventoryTransaction[]
  salesQuoteLines SalesQuoteLine[]
  salesOrderLines SalesOrderLine[]
  purchaseOrderLines PurchaseOrderLine[]
  workOrders WorkOrder[]
  workOrderMaterialIssues WorkOrderMaterialIssue[]
  operations InventoryItemOperation[]
  reservations InventoryReservation[]
  transfers InventoryTransfer[]
  preferredVendor Vendor? @relation(fields: [preferredVendorId], references: [id], onDelete: SetNull)
  skuFamily     InventorySkuFamily? @relation(fields: [skuFamilyId], references: [id], onDelete: SetNull)
  skuNode       InventorySkuNode? @relation(fields: [skuNodeId], references: [id], onDelete: SetNull)

  @@index([preferredVendorId])
  @@index([skuFamilyId])
  @@index([skuNodeId])
}

model InventorySkuFamily {
  id            String   @id @default(cuid())
  code          String   @unique
  sequenceCode  String   @unique
  name          String
  description   String
  nextSequenceNumber Int @default(1)
  isActive      Boolean  @default(true)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  nodes         InventorySkuNode[]
  items         InventoryItem[]
}

model InventorySkuNode {
  id            String   @id @default(cuid())
  familyId      String
  parentNodeId  String?
  code          String
  label         String
  description   String
  path          String
  level         Int
  sortOrder     Int      @default(0)
  isActive      Boolean  @default(true)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  family        InventorySkuFamily @relation(fields: [familyId], references: [id], onDelete: Cascade)
  parentNode    InventorySkuNode? @relation("InventorySkuNodeTree", fields: [parentNodeId], references: [id], onDelete: Cascade)
  childNodes    InventorySkuNode[] @relation("InventorySkuNodeTree")
  items         InventoryItem[]

  @@unique([familyId, path])
  @@index([familyId, parentNodeId, sortOrder])
}

model Warehouse {
  id        String   @id @default(cuid())
  code      String   @unique
  name      String
  notes     String
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  locations WarehouseLocation[]
  inventoryTransactions InventoryTransaction[]
  purchaseReceipts PurchaseReceipt[]
  workOrders WorkOrder[]
  workOrderMaterialIssues WorkOrderMaterialIssue[]
  reservations InventoryReservation[]
  transferSources InventoryTransfer[] @relation("InventoryTransferFromWarehouse")
  transferDestinations InventoryTransfer[] @relation("InventoryTransferToWarehouse")
}

model Customer {
  id           String   @id @default(cuid())
  name         String
  email        String
  phone        String
  addressLine1 String
  addressLine2 String
  city         String
  state        String
  postalCode   String
  country      String
  status       String   @default("ACTIVE")
  lifecycleStage String @default("ACTIVE")
  isReseller   Boolean  @default(false)
  resellerDiscountPercent Float @default(0)
  parentCustomerId String?
  paymentTerms String?
  currencyCode String? @default("USD")
  taxExempt    Boolean @default(false)
  creditHold   Boolean @default(false)
  preferredAccount Boolean @default(false)
  strategicAccount Boolean @default(false)
  requiresApproval Boolean @default(false)
  blockedAccount Boolean @default(false)
  notes        String
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt
  contactEntries CrmContactEntry[]
  contacts     CrmContact[]
  parentCustomer Customer? @relation("CustomerHierarchy", fields: [parentCustomerId], references: [id], onDelete: SetNull)
  childCustomers Customer[] @relation("CustomerHierarchy")
  salesQuotes  SalesQuote[]
  salesOrders  SalesOrder[]
  projects     Project[]
}

model InventoryBomLine {
  id              String   @id @default(cuid())
  parentItemId    String
  componentItemId String
  quantity        Float
  unitOfMeasure   String
  notes           String
  position        Int      @default(0)
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt
  parentItem      InventoryItem @relation("InventoryBomParent", fields: [parentItemId], references: [id], onDelete: Cascade)
  componentItem   InventoryItem @relation("InventoryBomComponent", fields: [componentItemId], references: [id], onDelete: Restrict)

  @@index([parentItemId, position])
  @@index([componentItemId])
}

model WarehouseLocation {
  id          String   @id @default(cuid())
  warehouseId String
  code        String
  name        String
  notes       String
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  warehouse   Warehouse @relation(fields: [warehouseId], references: [id], onDelete: Cascade)
  inventoryTransactions InventoryTransaction[]
  purchaseReceipts PurchaseReceipt[]
  workOrders WorkOrder[]
  workOrderMaterialIssues WorkOrderMaterialIssue[]
  reservations InventoryReservation[]
  transferSourceLocations InventoryTransfer[] @relation("InventoryTransferFromLocation")
  transferDestinationLocations InventoryTransfer[] @relation("InventoryTransferToLocation")

  @@unique([warehouseId, code])
  @@index([warehouseId])
}

model InventoryTransaction {
  id             String   @id @default(cuid())
  itemId         String
  warehouseId    String
  locationId     String
  transactionType String
  quantity       Int
  reference      String
  notes          String
  createdById    String?
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  item           InventoryItem @relation(fields: [itemId], references: [id], onDelete: Cascade)
  warehouse      Warehouse @relation(fields: [warehouseId], references: [id], onDelete: Restrict)
  location       WarehouseLocation @relation(fields: [locationId], references: [id], onDelete: Restrict)
  createdBy      User? @relation(fields: [createdById], references: [id], onDelete: SetNull)

  @@index([itemId, createdAt])
  @@index([warehouseId, createdAt])
  @@index([locationId, createdAt])
}

model InventoryTransfer {
  id              String   @id @default(cuid())
  itemId          String
  fromWarehouseId String
  fromLocationId  String
  toWarehouseId   String
  toLocationId    String
  quantity        Int
  notes           String
  createdById     String?
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt
  item            InventoryItem @relation(fields: [itemId], references: [id], onDelete: Cascade)
  fromWarehouse   Warehouse @relation("InventoryTransferFromWarehouse", fields: [fromWarehouseId], references: [id], onDelete: Restrict)
  fromLocation    WarehouseLocation @relation("InventoryTransferFromLocation", fields: [fromLocationId], references: [id], onDelete: Restrict)
  toWarehouse     Warehouse @relation("InventoryTransferToWarehouse", fields: [toWarehouseId], references: [id], onDelete: Restrict)
  toLocation      WarehouseLocation @relation("InventoryTransferToLocation", fields: [toLocationId], references: [id], onDelete: Restrict)
  createdBy       User? @relation("InventoryTransferCreatedBy", fields: [createdById], references: [id], onDelete: SetNull)

  @@index([itemId, createdAt])
}

model InventoryReservation {
  id          String   @id @default(cuid())
  itemId      String
  warehouseId String?
  locationId  String?
  workOrderId String?
  sourceType  String
  sourceId    String?
  quantity    Int
  status      String   @default("ACTIVE")
  notes       String
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  item        InventoryItem @relation(fields: [itemId], references: [id], onDelete: Cascade)
  warehouse   Warehouse? @relation(fields: [warehouseId], references: [id], onDelete: SetNull)
  location    WarehouseLocation? @relation(fields: [locationId], references: [id], onDelete: SetNull)
  workOrder   WorkOrder? @relation(fields: [workOrderId], references: [id], onDelete: Cascade)

  @@index([itemId, status, createdAt])
  @@index([warehouseId, locationId, status])
  @@index([workOrderId, status])
}

model Vendor {
  id           String   @id @default(cuid())
  name         String
  email        String
  phone        String
  addressLine1 String
  addressLine2 String
  city         String
  state        String
  postalCode   String
  country      String
  status       String   @default("ACTIVE")
  lifecycleStage String @default("ACTIVE")
  paymentTerms String?
  currencyCode String? @default("USD")
  taxExempt    Boolean @default(false)
  creditHold   Boolean @default(false)
  preferredAccount Boolean @default(false)
  strategicAccount Boolean @default(false)
  requiresApproval Boolean @default(false)
  blockedAccount Boolean @default(false)
  notes        String
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt
  contactEntries CrmContactEntry[]
  contacts     CrmContact[]
  purchaseOrders PurchaseOrder[]
  preferredSupplyItems InventoryItem[]
}

model CrmContactEntry {
  id          String   @id @default(cuid())
  type        String   @default("NOTE")
  summary     String
  body        String
  contactAt   DateTime
  customerId  String?
  vendorId    String?
  createdById String?
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  customer    Customer? @relation(fields: [customerId], references: [id], onDelete: Cascade)
  vendor      Vendor?   @relation(fields: [vendorId], references: [id], onDelete: Cascade)
  createdBy   User?     @relation(fields: [createdById], references: [id], onDelete: SetNull)
}

model CrmContact {
  id         String   @id @default(cuid())
  fullName   String
  role       String   @default("OTHER")
  email      String
  phone      String
  isPrimary  Boolean  @default(false)
  customerId String?
  vendorId   String?
  createdAt  DateTime @default(now())
  updatedAt  DateTime @updatedAt
  customer   Customer? @relation(fields: [customerId], references: [id], onDelete: Cascade)
  vendor     Vendor?   @relation(fields: [vendorId], references: [id], onDelete: Cascade)
}

model SalesQuote {
  id             String   @id @default(cuid())
  documentNumber String   @unique
  customerId     String
  status         String
  issueDate      DateTime
  expiresAt      DateTime?
  approvedAt     DateTime?
  approvedById   String?
  discountPercent Float   @default(0)
  taxPercent      Float   @default(0)
  freightAmount   Float   @default(0)
  notes          String
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  customer       Customer @relation(fields: [customerId], references: [id], onDelete: Restrict)
  approvedBy     User? @relation("SalesQuoteApprovedBy", fields: [approvedById], references: [id], onDelete: SetNull)
  lines          SalesQuoteLine[]
  projects       Project[]
  revisions      SalesQuoteRevision[]
}

model SalesQuoteLine {
  id            String   @id @default(cuid())
  quoteId       String
  itemId        String
  description   String
  quantity      Int
  unitOfMeasure String
  unitPrice     Float
  position      Int      @default(0)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  quote         SalesQuote @relation(fields: [quoteId], references: [id], onDelete: Cascade)
  item          InventoryItem @relation(fields: [itemId], references: [id], onDelete: Restrict)

  @@index([quoteId, position])
}

model SalesOrder {
  id             String   @id @default(cuid())
  documentNumber String   @unique
  customerId     String
  status         String
  issueDate      DateTime
  approvedAt     DateTime?
  approvedById   String?
  discountPercent Float   @default(0)
  taxPercent      Float   @default(0)
  freightAmount   Float   @default(0)
  notes          String
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  customer       Customer @relation(fields: [customerId], references: [id], onDelete: Restrict)
  approvedBy     User? @relation("SalesOrderApprovedBy", fields: [approvedById], references: [id], onDelete: SetNull)
  lines          SalesOrderLine[]
  shipments      Shipment[]
  projects       Project[]
  revisions      SalesOrderRevision[]
  workOrders     WorkOrder[]
  purchaseOrderLines PurchaseOrderLine[]
}

model SalesOrderLine {
  id            String   @id @default(cuid())
  orderId       String
  itemId        String
  description   String
  quantity      Int
  unitOfMeasure String
  unitPrice     Float
  position      Int      @default(0)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  order         SalesOrder @relation(fields: [orderId], references: [id], onDelete: Cascade)
  item          InventoryItem @relation(fields: [itemId], references: [id], onDelete: Restrict)
  workOrders    WorkOrder[]
  purchaseOrderLines PurchaseOrderLine[]

  @@index([orderId, position])
}

model SalesQuoteRevision {
  id             String   @id @default(cuid())
  quoteId        String
  revisionNumber Int
  reason         String
  snapshot       String
  createdById    String?
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  quote          SalesQuote @relation(fields: [quoteId], references: [id], onDelete: Cascade)
  createdBy      User? @relation("SalesQuoteRevisionCreatedBy", fields: [createdById], references: [id], onDelete: SetNull)

  @@unique([quoteId, revisionNumber])
  @@index([quoteId, createdAt])
}

model SalesOrderRevision {
  id             String   @id @default(cuid())
  orderId        String
  revisionNumber Int
  reason         String
  snapshot       String
  createdById    String?
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  order          SalesOrder @relation(fields: [orderId], references: [id], onDelete: Cascade)
  createdBy      User? @relation("SalesOrderRevisionCreatedBy", fields: [createdById], references: [id], onDelete: SetNull)

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

model Shipment {
  id             String   @id @default(cuid())
  shipmentNumber String   @unique
  salesOrderId   String
  status         String
  shipDate       DateTime?
  carrier        String
  serviceLevel   String
  trackingNumber String
  packageCount   Int      @default(1)
  notes          String
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  salesOrder     SalesOrder @relation(fields: [salesOrderId], references: [id], onDelete: Restrict)
  projects       Project[]

  @@index([salesOrderId, createdAt])
}

model Project {
  id            String   @id @default(cuid())
  projectNumber String   @unique
  name          String
  status        String
  priority      String
  customerId    String
  salesQuoteId  String?
  salesOrderId  String?
  shipmentId    String?
  ownerId       String?
  dueDate       DateTime?
  notes         String
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  customer      Customer @relation(fields: [customerId], references: [id], onDelete: Restrict)
  salesQuote    SalesQuote? @relation(fields: [salesQuoteId], references: [id], onDelete: SetNull)
  salesOrder    SalesOrder? @relation(fields: [salesOrderId], references: [id], onDelete: SetNull)
  shipment      Shipment? @relation(fields: [shipmentId], references: [id], onDelete: SetNull)
  owner         User? @relation("ProjectOwner", fields: [ownerId], references: [id], onDelete: SetNull)
  workOrders    WorkOrder[]
  milestones    ProjectMilestone[]

  @@index([customerId, createdAt])
  @@index([ownerId, dueDate])
  @@index([status, priority])
}

model ProjectMilestone {
  id          String   @id @default(cuid())
  projectId   String
  title       String
  status      String
  dueDate     DateTime?
  completedAt DateTime?
  notes       String
  sortOrder   Int      @default(0)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  project     Project  @relation(fields: [projectId], references: [id], onDelete: Cascade)

  @@index([projectId, sortOrder])
  @@index([projectId, dueDate])
}

model WorkOrder {
  id                String   @id @default(cuid())
  workOrderNumber   String   @unique
  itemId            String
  projectId         String?
  salesOrderId      String?
  salesOrderLineId  String?
  warehouseId       String
  locationId        String
  status            String
  quantity          Int
  completedQuantity Int      @default(0)
  dueDate           DateTime?
  notes             String
  createdAt         DateTime @default(now())
  updatedAt         DateTime @updatedAt
  item              InventoryItem @relation(fields: [itemId], references: [id], onDelete: Restrict)
  project           Project? @relation(fields: [projectId], references: [id], onDelete: SetNull)
  salesOrder        SalesOrder? @relation(fields: [salesOrderId], references: [id], onDelete: SetNull)
  salesOrderLine    SalesOrderLine? @relation(fields: [salesOrderLineId], references: [id], onDelete: SetNull)
  warehouse         Warehouse @relation(fields: [warehouseId], references: [id], onDelete: Restrict)
  location          WarehouseLocation @relation(fields: [locationId], references: [id], onDelete: Restrict)
  operations        WorkOrderOperation[]
  materialIssues    WorkOrderMaterialIssue[]
  completions       WorkOrderCompletion[]
  reservations      InventoryReservation[]

  @@index([itemId, createdAt])
  @@index([projectId, dueDate])
  @@index([salesOrderId, dueDate])
  @@index([salesOrderLineId, dueDate])
  @@index([status, dueDate])
  @@index([warehouseId, createdAt])
}

model ManufacturingStation {
  id          String   @id @default(cuid())
  code        String   @unique
  name        String
  description String
  queueDays   Int      @default(0)
  dailyCapacityMinutes Int @default(480)
  parallelCapacity Int @default(1)
  workingDays String @default("1,2,3,4,5")
  isActive    Boolean  @default(true)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  itemOperations InventoryItemOperation[]
  workOrderOperations WorkOrderOperation[]
}

model InventoryItemOperation {
  id             String   @id @default(cuid())
  itemId         String
  stationId      String
  setupMinutes   Int      @default(0)
  runMinutesPerUnit Int   @default(0)
  moveMinutes    Int      @default(0)
  notes          String
  position       Int      @default(0)
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  item           InventoryItem @relation(fields: [itemId], references: [id], onDelete: Cascade)
  station        ManufacturingStation @relation(fields: [stationId], references: [id], onDelete: Restrict)

  @@index([itemId, position])
  @@index([stationId])
}

model WorkOrderOperation {
  id               String   @id @default(cuid())
  workOrderId      String
  stationId        String
  sequence         Int
  setupMinutes     Int      @default(0)
  runMinutesPerUnit Int     @default(0)
  moveMinutes      Int      @default(0)
  plannedMinutes   Int      @default(0)
  plannedStart     DateTime
  plannedEnd       DateTime
  notes            String
  createdAt        DateTime @default(now())
  updatedAt        DateTime @updatedAt
  workOrder        WorkOrder @relation(fields: [workOrderId], references: [id], onDelete: Cascade)
  station          ManufacturingStation @relation(fields: [stationId], references: [id], onDelete: Restrict)

  @@index([workOrderId, sequence])
  @@index([stationId, plannedStart])
}

model WorkOrderMaterialIssue {
  id              String   @id @default(cuid())
  workOrderId     String
  componentItemId String
  warehouseId     String
  locationId      String
  quantity        Int
  notes           String
  createdById     String?
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt
  workOrder       WorkOrder @relation(fields: [workOrderId], references: [id], onDelete: Cascade)
  componentItem   InventoryItem @relation(fields: [componentItemId], references: [id], onDelete: Restrict)
  warehouse       Warehouse @relation(fields: [warehouseId], references: [id], onDelete: Restrict)
  location        WarehouseLocation @relation(fields: [locationId], references: [id], onDelete: Restrict)
  createdBy       User? @relation(fields: [createdById], references: [id], onDelete: SetNull)

  @@index([workOrderId, createdAt])
  @@index([componentItemId, createdAt])
}

model WorkOrderCompletion {
  id          String   @id @default(cuid())
  workOrderId String
  quantity    Int
  notes       String
  createdById String?
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  workOrder   WorkOrder @relation(fields: [workOrderId], references: [id], onDelete: Cascade)
  createdBy   User? @relation(fields: [createdById], references: [id], onDelete: SetNull)

  @@index([workOrderId, createdAt])
}

model PurchaseOrder {
  id             String   @id @default(cuid())
  documentNumber String   @unique
  vendorId       String
  status         String
  issueDate      DateTime
  taxPercent     Float    @default(0)
  freightAmount  Float    @default(0)
  notes          String
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  vendor         Vendor   @relation(fields: [vendorId], references: [id], onDelete: Restrict)
  lines          PurchaseOrderLine[]
  receipts       PurchaseReceipt[]
  revisions      PurchaseOrderRevision[]
}

model PurchaseOrderLine {
  id            String   @id @default(cuid())
  purchaseOrderId String
  itemId        String
  salesOrderId  String?
  salesOrderLineId String?
  description   String
  quantity      Int
  unitOfMeasure String
  unitCost      Float
  position      Int      @default(0)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
  purchaseOrder PurchaseOrder @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  item          InventoryItem @relation(fields: [itemId], references: [id], onDelete: Restrict)
  salesOrder    SalesOrder? @relation(fields: [salesOrderId], references: [id], onDelete: SetNull)
  salesOrderLine SalesOrderLine? @relation(fields: [salesOrderLineId], references: [id], onDelete: SetNull)
  receiptLines  PurchaseReceiptLine[]

  @@index([purchaseOrderId, position])
  @@index([salesOrderId, position])
  @@index([salesOrderLineId, position])
}

model PurchaseReceipt {
  id              String   @id @default(cuid())
  receiptNumber   String   @unique
  purchaseOrderId String
  warehouseId     String
  locationId      String
  receivedAt      DateTime
  notes           String
  createdById     String?
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt
  purchaseOrder   PurchaseOrder @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  warehouse       Warehouse @relation(fields: [warehouseId], references: [id], onDelete: Restrict)
  location        WarehouseLocation @relation(fields: [locationId], references: [id], onDelete: Restrict)
  createdBy       User? @relation(fields: [createdById], references: [id], onDelete: SetNull)
  lines           PurchaseReceiptLine[]

  @@index([purchaseOrderId, createdAt])
  @@index([warehouseId, createdAt])
  @@index([locationId, createdAt])
}

model PurchaseReceiptLine {
  id                  String   @id @default(cuid())
  purchaseReceiptId   String
  purchaseOrderLineId String
  quantity            Int
  createdAt           DateTime @default(now())
  updatedAt           DateTime @updatedAt
  purchaseReceipt     PurchaseReceipt @relation(fields: [purchaseReceiptId], references: [id], onDelete: Cascade)
  purchaseOrderLine   PurchaseOrderLine @relation(fields: [purchaseOrderLineId], references: [id], onDelete: Restrict)

  @@index([purchaseReceiptId])
  @@index([purchaseOrderLineId])
}

model PurchaseOrderRevision {
  id             String   @id @default(cuid())
  purchaseOrderId String
  revisionNumber Int
  reason         String
  snapshot       String
  createdById    String?
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  purchaseOrder  PurchaseOrder @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  createdBy      User? @relation(fields: [createdById], references: [id], onDelete: SetNull)

  @@unique([purchaseOrderId, revisionNumber])
  @@index([purchaseOrderId, createdAt])
}

model AuditEvent {
  id           String   @id @default(cuid())
  actorId      String?
  entityType   String
  entityId     String?
  action       String
  summary      String
  metadataJson String
  createdAt    DateTime @default(now())
  actor        User?    @relation(fields: [actorId], references: [id], onDelete: SetNull)

  @@index([createdAt])
  @@index([entityType, entityId, createdAt])
  @@index([actorId, createdAt])
}