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

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

enum Role {
  TECHNICAL
  MANNING
  ACCOUNTS
  MANAGER
  SUPERUSER
  AUDITOR
  ADMIN
}

enum POStatus {
  DRAFT
  SUBMITTED
  MGR_REVIEW
  VENDOR_ID_PENDING
  EDITS_REQUESTED
  REJECTED
  MGR_APPROVED
  SENT_FOR_PAYMENT
  PARTIALLY_PAID
  PAID_DELIVERED
  PARTIALLY_CLOSED
  CLOSED
}

enum ActionType {
  CREATED
  SUBMITTED
  APPROVED
  APPROVED_WITH_NOTE
  REJECTED
  EDITS_REQUESTED
  VENDOR_ID_REQUESTED
  VENDOR_ID_PROVIDED
  PAYMENT_SENT
  PARTIAL_PAYMENT_CONFIRMED
  RECEIPT_CONFIRMED
  PARTIAL_RECEIPT_CONFIRMED
  CLOSED
  REASSIGNED
  PRODUCT_PRICE_UPDATED
  MANAGER_LINE_EDIT
}

enum RequestStatus {
  PENDING
  APPROVED
  DENIED
}

model User {
  id           String   @id @default(cuid())
  employeeId   String   @unique
  email        String   @unique
  name         String
  passwordHash String?
  role         Role
  isActive     Boolean  @default(true)
  signatureKey String?
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt

  submittedPOs        PurchaseOrder[]      @relation("Submitter")
  actions             POAction[]
  notifications       Notification[]
  consumption         ItemConsumption[]
  superUserRequests   SuperUserRequest[]   @relation("Requester")
  resolvedRequests    SuperUserRequest[]   @relation("RequestResolver")
}

model SuperUserRequest {
  id           String        @id @default(cuid())
  userId       String
  user         User          @relation("Requester", fields: [userId], references: [id])
  reason       String?
  status       RequestStatus @default(PENDING)
  createdAt    DateTime      @default(now())
  resolvedAt   DateTime?
  resolvedById String?
  resolvedBy   User?         @relation("RequestResolver", fields: [resolvedById], references: [id])
}

model Site {
  id        String   @id @default(cuid())
  name      String
  code      String   @unique
  address   String?
  latitude  Float?
  longitude Float?
  isActive  Boolean  @default(true)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  purchaseOrders PurchaseOrder[]
  inventory      ItemInventory[]
  consumption    ItemConsumption[]
}

model Vessel {
  id        String  @id @default(cuid())
  name      String
  code      String  @unique
  isActive  Boolean @default(true)

  purchaseOrders PurchaseOrder[]
}

model Company {
  id             String   @id @default(cuid())
  name           String
  gstNumber      String?
  address        String?
  telephone      String?
  mobile         String?
  email          String?
  invoiceEmail   String?
  invoiceAddress String?
  isActive       Boolean  @default(true)
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt

  purchaseOrders PurchaseOrder[]
}

model Account {
  id          String  @id @default(cuid())
  code        String  @unique
  name        String
  description String?
  isActive    Boolean @default(true)

  parentId String?
  parent   Account?  @relation("AccountHierarchy", fields: [parentId], references: [id])
  children Account[] @relation("AccountHierarchy")

  purchaseOrders PurchaseOrder[]
  lineItems      POLineItem[]
}

model VendorContact {
  id        String  @id @default(cuid())
  name      String
  role      String?
  mobile    String?
  email     String?
  isPrimary Boolean @default(false)
  createdAt DateTime @default(now())

  vendorId String
  vendor   Vendor @relation(fields: [vendorId], references: [id], onDelete: Cascade)
}

model Vendor {
  id            String   @id @default(cuid())
  name          String
  vendorId      String?  @unique
  address       String?
  pincode       String?
  gstin         String?
  latitude      Float?
  longitude     Float?
  isVerified    Boolean  @default(false)
  isActive      Boolean  @default(true)
  createdAt     DateTime @default(now())

  contacts       VendorContact[]
  purchaseOrders PurchaseOrder[]
  products       Product[]            @relation("ProductLastVendor")
  vendorPrices   ProductVendorPrice[]
}

model Product {
  id           String   @id @default(cuid())
  code         String   @unique
  name         String
  description  String?
  lastPrice    Decimal? @db.Decimal(12, 2)
  lastVendorId String?
  lastVendor   Vendor?  @relation("ProductLastVendor", fields: [lastVendorId], references: [id])
  isActive     Boolean  @default(true)
  updatedAt    DateTime @updatedAt
  createdAt    DateTime @default(now())

  lineItems    POLineItem[]
  vendorPrices ProductVendorPrice[]
  inventory    ItemInventory[]
  consumption  ItemConsumption[]
}

model ProductVendorPrice {
  id        String   @id @default(cuid())
  price     Decimal  @db.Decimal(12, 2)
  updatedAt DateTime @updatedAt

  productId String
  product   Product @relation(fields: [productId], references: [id], onDelete: Cascade)
  vendorId  String
  vendor    Vendor  @relation(fields: [vendorId], references: [id])

  @@unique([productId, vendorId])
}

model ItemInventory {
  id        String   @id @default(cuid())
  quantity  Decimal  @db.Decimal(10, 3)
  updatedAt DateTime @updatedAt

  productId String
  product   Product @relation(fields: [productId], references: [id])
  siteId    String
  site      Site    @relation(fields: [siteId], references: [id])

  @@unique([productId, siteId])
}

model ItemConsumption {
  id       String   @id @default(cuid())
  date     DateTime @db.Date
  quantity Decimal  @db.Decimal(10, 3)
  note     String?

  productId    String
  product      Product @relation(fields: [productId], references: [id])
  siteId       String
  site         Site    @relation(fields: [siteId], references: [id])
  recordedById String
  recordedBy   User    @relation(fields: [recordedById], references: [id])

  @@unique([productId, siteId, date])
}

model PurchaseOrder {
  id                  String    @id @default(cuid())
  poNumber            String    @unique
  title               String
  status              POStatus  @default(DRAFT)
  totalAmount         Decimal   @db.Decimal(12, 2)
  currency            String    @default("INR")
  dateRequired        DateTime?
  projectCode         String?
  managerNote         String?
  paymentRef          String?
  paidAmount          Decimal?  @db.Decimal(12, 2)
  piQuotationNo       String?
  piQuotationDate     DateTime?
  requisitionNo       String?
  requisitionDate     DateTime?
  placeOfDelivery     String?
  tcDelivery          String?
  tcDispatch          String?
  tcInspection        String?
  tcTransitInsurance  String?
  tcPaymentTerms      String?
  tcOthers            String?
  submittedAt         DateTime?
  approvedAt          DateTime?
  paidAt              DateTime?
  closedAt            DateTime?
  createdAt           DateTime  @default(now())
  updatedAt           DateTime  @updatedAt

  submitterId String
  submitter   User    @relation("Submitter", fields: [submitterId], references: [id])
  vesselId    String
  vessel      Vessel  @relation(fields: [vesselId], references: [id])
  accountId   String
  account     Account @relation(fields: [accountId], references: [id])
  companyId   String?
  company     Company? @relation(fields: [companyId], references: [id])
  vendorId    String?
  vendor      Vendor? @relation(fields: [vendorId], references: [id])
  siteId      String?
  site        Site?   @relation(fields: [siteId], references: [id])

  lineItems     POLineItem[]
  documents     PODocument[]
  actions       POAction[]
  receipt       Receipt?
  notifications Notification[]
}

model POLineItem {
  id                String   @id @default(cuid())
  name              String
  description       String?
  quantity          Decimal  @db.Decimal(10, 3)
  unit              String
  unitPrice         Decimal  @db.Decimal(12, 2)
  totalPrice        Decimal  @db.Decimal(12, 2)
  gstRate           Decimal  @default(0.18) @db.Decimal(5, 4)
  sortOrder         Int      @default(0)
  size              String?
  deliveredQuantity Decimal? @db.Decimal(10, 3)
  productId         String?
  product           Product? @relation(fields: [productId], references: [id])
  accountId         String?
  account           Account? @relation(fields: [accountId], references: [id])

  poId String
  po   PurchaseOrder @relation(fields: [poId], references: [id], onDelete: Cascade)
}

model PODocument {
  id         String   @id @default(cuid())
  fileName   String
  fileSize   Int
  mimeType   String
  storageKey String
  uploadedAt DateTime @default(now())

  poId String
  po   PurchaseOrder @relation(fields: [poId], references: [id], onDelete: Cascade)
}

model POAction {
  id         String     @id @default(cuid())
  actionType ActionType
  note       String?
  metadata   Json?
  createdAt  DateTime   @default(now())

  poId    String
  po      PurchaseOrder @relation(fields: [poId], references: [id])
  actorId String
  actor   User          @relation(fields: [actorId], references: [id])
}

model Receipt {
  id          String   @id @default(cuid())
  storageKey  String
  fileName    String
  notes       String?
  confirmedAt DateTime @default(now())

  poId String        @unique
  po   PurchaseOrder @relation(fields: [poId], references: [id])
}

model Notification {
  id      String   @id @default(cuid())
  subject String
  body    String
  link    String?
  isRead  Boolean  @default(false)
  sentAt  DateTime @default(now())
  status  String   @default("sent")

  poId   String?
  po     PurchaseOrder? @relation(fields: [poId], references: [id])
  userId String
  user   User           @relation(fields: [userId], references: [id])
}