// 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")
}

model User {
    id        String   @id @default(cuid())
    email     String   @unique
    phone     String?
    name      String
    role      UserRole
    isActive  Boolean  @default(true)
    createdAt DateTime @default(now())
    updatedAt DateTime @updatedAt

    // Relations
    farmer        Farmer?
    buyer         Buyer?
    administrator Administrator?

    @@map("users")
}

model Farmer {
    id               String    @id @default(cuid())
    userId           String    @unique
    farmerCode       String    @unique
    name             String
    phone            String?
    email            String?
    dateOfBirth      DateTime?
    gender           Gender?
    maritalStatus    MaritalStatus?
    spouseName       String?
    numberOfChildren Int?          @default(0)
    religion         Religion?
    nationality      String?       @default("Indonesian")
    address          String?
    village          String?
    district         String?
    province         String?
    postalCode       String?
    country          String?   @default("Indonesia")
    
    // Location data
    latitude         Float?
    longitude        Float?
    addressGeoJson   Json? // GeoJSON point for precise location
    
    // Identity information
    identityType     IdentityType?
    identityNumber   String?
    identityExpiry   DateTime?
    
    // Banking information
    bankAccount      String?
    bankName         String?
    accountHolderName String?
    
    // Photos and attachments
    profilePhotoUrl  String?
    idCardFrontUrl   String?
    idCardBackUrl    String?
    
    // Verification status
    isVerified       Boolean   @default(false)
    verificationDate DateTime?
    verifiedBy       String? // admin ID who verified
    verificationNotes String?
    
    // Farming experience
    farmingExperience Int? // years of experience
    educationLevel   EducationLevel?
    occupation       String? // primary occupation if not full-time farmer
    monthlyIncome    Float? // estimated monthly income
    landOwnership    LandOwnership?
    primaryCrop      String?
    farmingMethods   String[] // organic, conventional, etc.
    hasVehicle       Boolean? // for transportation
    vehicleType      String? // motorcycle, car, truck, etc.
    hasSmartphone    Boolean? @default(true)
    internetAccess   Boolean? @default(true)
    
    // Emergency contact
    emergencyContactName  String?
    emergencyContactPhone String?
    emergencyContactRelation String?
    
    // Status and metadata
    status           FarmerStatus @default(ACTIVE)
    notes            String?
    joinedAt         DateTime     @default(now())
    createdAt        DateTime     @default(now())
    updatedAt        DateTime     @updatedAt

    // Relations
    user           User                  @relation(fields: [userId], references: [id], onDelete: Cascade)
    farms          Farm[]
    trainings      FarmerTraining[]
    certifications FarmerCertification[]
    procurements   Procurement[]
    harvests       Harvest[]
    attachments    FarmerAttachment[]
    workers        FarmWorker[]
    laborRecords   LaborRecord[]
    laborSchedules LaborSchedule[]
    equipment      Equipment[]
    assets         Asset[]
    financialRecords FinancialRecord[]
    reviews        BuyerReview[]

    @@map("farmers")
}

model Buyer {
    id        String   @id @default(cuid())
    userId    String   @unique
    buyerCode String   @unique
    name      String
    company   String?
    phone     String?
    email     String?
    address   String?
    
    // Enhanced buyer details
    buyerType           BuyerType?
    businessLicense     String?
    taxNumber           String?
    contactPerson       String?
    contactPersonPhone  String?
    paymentTerms        Int? // days
    creditLimit         Float?
    preferredProducts   String[]
    qualityRequirements String?
    
    // Location and logistics
    warehouseAddress    String?
    deliveryPreference  String?
    operatingRadius     Float? // km
    
    // Business details
    businessSize        BusinessSize?
    yearEstablished     Int?
    annualVolume        Float? // estimated annual purchase volume
    employeeCount       Int?
    website             String?
    
    // Financial information
    bankAccount         String?
    bankName            String?
    accountHolderName   String?
    
    // Verification and status
    isVerified          Boolean   @default(false)
    verificationDate    DateTime?
    verifiedBy          String? // admin ID who verified
    verificationNotes   String?
    status              BuyerStatus @default(ACTIVE)
    
    // Photos and documents
    profilePhotoUrl     String?
    businessLicenseUrl  String?
    taxCertificateUrl   String?
    
    // Preferences
    preferredPickupDays String[] // Mon, Tue, Wed, etc.
    preferredPickupTime String?
    minimumOrderQuantity Float?
    maximumOrderQuantity Float?
    
    notes               String?
    createdAt           DateTime @default(now())
    updatedAt           DateTime @updatedAt

    // Relations
    user         User          @relation(fields: [userId], references: [id], onDelete: Cascade)
    procurements Procurement[]
    reviews      BuyerReview[]

    @@map("buyers")
}

model Administrator {
    id        String   @id @default(cuid())
    userId    String   @unique
    adminCode String   @unique
    name      String
    phone     String?
    createdAt DateTime @default(now())
    updatedAt DateTime @updatedAt

    // Relations
    user User @relation(fields: [userId], references: [id], onDelete: Cascade)

    @@map("administrators")
}

model Farm {
    id          String   @id @default(cuid())
    farmerId    String
    farmCode    String   @unique
    name        String
    address     String?
    village     String?
    district    String?
    province    String?
    postalCode  String?
    area        Float? // in hectares
    
    // Location data
    latitude    Float?
    longitude   Float?
    boundaries  Json? // GeoJSON polygon for farm boundaries
    elevation   Float? // meters above sea level
    
    // Farm characteristics
    soilType    String?
    soilPH      Float?
    waterSource WaterSource?
    irrigationType IrrigationType?
    slope       SlopeType?
    climate     ClimateType?
    
    // Infrastructure
    hasElectricity    Boolean? @default(false)
    hasWaterAccess    Boolean? @default(false)
    hasStorageFacility Boolean? @default(false)
    hasProcessingUnit Boolean? @default(false)
    accessRoadType    RoadType?
    
    // Photos and documentation
    mainPhotoUrl      String?
    aerialPhotoUrl    String?
    soilPhotoUrl      String?
    
    // Ownership and legal
    ownershipType     FarmOwnership?
    landCertificateNumber String?
    landCertificateUrl    String?
    
    // Agricultural details
    establishedYear   Int?
    totalInvestment   Float?
    annualProduction  Float? // estimated kg per year
    mainCrops         String[] // primary crops grown
    farmingSystem     FarmingSystem?
    organicCertified  Boolean? @default(false)
    
    description String?
    notes       String?
    isActive    Boolean  @default(true)
    createdAt   DateTime @default(now())
    updatedAt   DateTime @updatedAt

    // Relations
    farmer         Farmer           @relation(fields: [farmerId], references: [id], onDelete: Cascade)
    plots          Plot[]
    harvests       Harvest[]
    attachments    FarmAttachment[]
    weatherData    WeatherData[]
    weatherForecasts WeatherForecast[]
    inputs         FarmInput[]
    inputSchedules InputSchedule[]
    laborRecords   LaborRecord[]
    laborSchedules LaborSchedule[]
    equipmentUsage EquipmentUsage[]
    pestDiseaseRecords PestDiseaseRecord[]
    financialRecords FinancialRecord[]
    soilTests      SoilTest[]

    @@map("farms")
}

model Plot {
    id          String    @id @default(cuid())
    farmId      String
    name        String
    area        Float? // in hectares
    productId   String?
    variantId   String?
    plantedDate DateTime?
    boundaries  Json? // GeoJSON polygon for plot boundaries
    description String?
    isActive    Boolean   @default(true)
    createdAt   DateTime  @default(now())
    updatedAt   DateTime  @updatedAt

    // Relations
    farm           Farm            @relation(fields: [farmId], references: [id], onDelete: Cascade)
    product        Product?        @relation(fields: [productId], references: [id])
    variant        ProductVariant? @relation(fields: [variantId], references: [id])
    harvests       Harvest[]
    weatherData    WeatherData[]
    weatherForecasts WeatherForecast[]
    inputs         FarmInput[]
    inputSchedules InputSchedule[]
    laborRecords   LaborRecord[]
    laborSchedules LaborSchedule[]
    equipmentUsage EquipmentUsage[]
    pestDiseaseRecords PestDiseaseRecord[]
    financialRecords FinancialRecord[]
    soilTests      SoilTest[]

    @@map("plots")
}

model Harvest {
    id           String         @id @default(cuid())
    farmerId     String
    farmId       String
    plotId       String?
    variantId    String
    quantity     Float // in kg
    harvestDate  DateTime
    qualityGrade QualityGrade
    waterContent Float? // percentage
    density      Float? // kg/m3
    notes        String?
    createdAt    DateTime       @default(now())
    updatedAt    DateTime       @updatedAt

    // Relations
    farmer      Farmer           @relation(fields: [farmerId], references: [id])
    farm        Farm             @relation(fields: [farmId], references: [id])
    plot        Plot?            @relation(fields: [plotId], references: [id])
    variant     ProductVariant   @relation(fields: [variantId], references: [id])
    procurement Procurement?
    modifiers   HarvestModifier[]

    @@map("harvests")
}

model Procurement {
    id              String            @id @default(cuid())
    procurementCode String            @unique
    farmerId        String
    buyerId         String?
    harvestId       String            @unique
    variantId       String
    
    // Quantity and quality details
    quantity        Float // in kg
    qualityGrade    QualityGrade
    waterContent    Float? // percentage
    density         Float? // kg/m3
    
    // Pricing details
    basePrice       Float // price per kg
    premiumRate     Float             @default(0) // percentage
    totalPrice      Float
    transportCost   Float?            @default(0)
    processingCost  Float?            @default(0)
    finalAmount     Float // total amount to be paid
    
    // Location and logistics
    pickupLocation  String?
    deliveryLocation String?
    pickupDate      DateTime?
    deliveryDate    DateTime?
    transportMethod String? // truck, motorcycle, etc.
    
    // Quality assessment
    assessedBy      String? // quality assessor ID
    assessmentDate  DateTime?
    assessmentNotes String?
    rejectedQuantity Float?           @default(0)
    rejectionReason String?
    
    // Payment details
    paymentMethod   PaymentMethod?
    paymentReference String?
    bankAccount     String?
    
    // Status and tracking
    status          ProcurementStatus @default(PENDING)
    procurementDate DateTime          @default(now())
    approvedDate    DateTime?
    approvedBy      String? // admin ID who approved
    paymentDate     DateTime?
    completedDate   DateTime?
    
    // Documentation
    contractNumber  String?
    invoiceNumber   String?
    receiptNumber   String?
    
    notes           String?
    createdAt       DateTime          @default(now())
    updatedAt       DateTime          @updatedAt

    // Relations
    farmer      Farmer                @relation(fields: [farmerId], references: [id])
    buyer       Buyer?                @relation(fields: [buyerId], references: [id])
    harvest     Harvest               @relation(fields: [harvestId], references: [id])
    variant     ProductVariant        @relation(fields: [variantId], references: [id])
    attachments ProcurementAttachment[]

    @@map("procurements")
}

model HarvestModifier {
    id         String @id @default(cuid())
    harvestId  String
    modifierId String
    value      String // actual value applied
    adjustment Float? // calculated price adjustment
    createdAt  DateTime @default(now())
    updatedAt  DateTime @updatedAt

    // Relations
    harvest  Harvest         @relation(fields: [harvestId], references: [id], onDelete: Cascade)
    modifier ProductModifier @relation(fields: [modifierId], references: [id])

    @@unique([harvestId, modifierId])
    @@map("harvest_modifiers")
}

model FarmerAttachment {
    id          String           @id @default(cuid())
    farmerId    String
    type        AttachmentType
    title       String
    description String?
    fileUrl     String
    fileName    String
    fileSize    Int? // in bytes
    mimeType    String?
    uploadedBy  String? // user ID who uploaded
    isVerified  Boolean          @default(false)
    verifiedBy  String? // admin ID who verified
    verifiedAt  DateTime?
    createdAt   DateTime         @default(now())
    updatedAt   DateTime         @updatedAt

    // Relations
    farmer Farmer @relation(fields: [farmerId], references: [id], onDelete: Cascade)

    @@map("farmer_attachments")
}

model FarmAttachment {
    id          String              @id @default(cuid())
    farmId      String
    type        FarmAttachmentType
    title       String
    description String?
    fileUrl     String
    fileName    String
    fileSize    Int? // in bytes
    mimeType    String?
    uploadedBy  String? // user ID who uploaded
    takenDate   DateTime? // when photo was taken
    gpsLocation Json? // GeoJSON point where photo was taken
    isVerified  Boolean             @default(false)
    verifiedBy  String? // admin ID who verified
    verifiedAt  DateTime?
    createdAt   DateTime            @default(now())
    updatedAt   DateTime            @updatedAt

    // Relations
    farm Farm @relation(fields: [farmId], references: [id], onDelete: Cascade)

    @@map("farm_attachments")
}

model ProcurementAttachment {
    id            String                    @id @default(cuid())
    procurementId String
    type          ProcurementAttachmentType
    title         String
    description   String?
    fileUrl       String
    fileName      String
    fileSize      Int? // in bytes
    mimeType      String?
    uploadedBy    String? // user ID who uploaded
    takenDate     DateTime? // when photo was taken
    gpsLocation   Json? // GeoJSON point where photo was taken
    isVerified    Boolean                   @default(false)
    verifiedBy    String? // admin ID who verified
    verifiedAt    DateTime?
    createdAt     DateTime                  @default(now())
    updatedAt     DateTime                  @updatedAt

    // Relations
    procurement Procurement @relation(fields: [procurementId], references: [id], onDelete: Cascade)

    @@map("procurement_attachments")
}

model Training {
    id          String   @id @default(cuid())
    title       String
    description String?
    content     String?
    category    String
    duration    Int? // in minutes
    level       String? // beginner, intermediate, advanced
    isActive    Boolean  @default(true)
    createdAt   DateTime @default(now())
    updatedAt   DateTime @updatedAt

    // Relations
    farmerTrainings FarmerTraining[]

    @@map("trainings")
}

model FarmerTraining {
    id          String         @id @default(cuid())
    farmerId    String
    trainingId  String
    status      TrainingStatus @default(ENROLLED)
    progress    Int            @default(0) // percentage
    score       Float?
    completedAt DateTime?
    createdAt   DateTime       @default(now())
    updatedAt   DateTime       @updatedAt

    // Relations
    farmer   Farmer   @relation(fields: [farmerId], references: [id], onDelete: Cascade)
    training Training @relation(fields: [trainingId], references: [id], onDelete: Cascade)

    @@unique([farmerId, trainingId])
    @@map("farmer_trainings")
}

model Certification {
    id             String   @id @default(cuid())
    name           String
    description    String?
    validityPeriod Int? // in months
    requirements   String?
    isActive       Boolean  @default(true)
    createdAt      DateTime @default(now())
    updatedAt      DateTime @updatedAt

    // Relations
    farmerCertifications FarmerCertification[]

    @@map("certifications")
}

model FarmerCertification {
    id                String              @id @default(cuid())
    farmerId          String
    certificationId   String
    status            CertificationStatus @default(PENDING)
    issuedDate        DateTime?
    expiryDate        DateTime?
    certificateNumber String?
    notes             String?
    createdAt         DateTime            @default(now())
    updatedAt         DateTime            @updatedAt

    // Relations
    farmer        Farmer        @relation(fields: [farmerId], references: [id], onDelete: Cascade)
    certification Certification @relation(fields: [certificationId], references: [id], onDelete: Cascade)

    @@unique([farmerId, certificationId])
    @@map("farmer_certifications")
}

model Article {
    id          String        @id @default(cuid())
    title       String
    content     String
    excerpt     String?
    category    String
    tags        String[]
    author      String?
    status      ArticleStatus @default(DRAFT)
    views       Int           @default(0)
    publishedAt DateTime?
    createdAt   DateTime      @default(now())
    updatedAt   DateTime      @updatedAt

    @@map("articles")
}

model Product {
    id          String   @id @default(cuid())
    name        String // e.g., "Pepper"
    code        String   @unique
    description String?
    category    String
    unit        String   @default("kg") // kg, ton, etc
    isActive    Boolean  @default(true)
    createdAt   DateTime @default(now())
    updatedAt   DateTime @updatedAt

    // Relations
    plots        Plot[]
    variants     ProductVariant[]
    modifiers    ProductModifier[]
    priceHistory PriceHistory[]
    marketPrices MarketPrice[]
    marketDemand MarketDemand[]

    @@map("products")
}

model ProductVariant {
    id          String   @id @default(cuid())
    productId   String
    name        String // e.g., "Black Pepper", "White Pepper"
    code        String   @unique
    description String?
    basePrice   Float? // default base price
    isActive    Boolean  @default(true)
    createdAt   DateTime @default(now())
    updatedAt   DateTime @updatedAt

    // Relations
    product      Product        @relation(fields: [productId], references: [id], onDelete: Cascade)
    plots        Plot[]
    harvests     Harvest[]
    procurements Procurement[]
    priceHistory PriceHistory[]
    marketPrices MarketPrice[]
    marketDemand MarketDemand[]

    @@map("product_variants")
}

model ProductModifier {
    id            String                @id @default(cuid())
    productId     String
    name          String // e.g., "Water Content", "Density"
    code          String
    description   String?
    selectionType ModifierSelectionType @default(INPUT)
    nominalType   NominalType           @default(NOMINAL)
    options       String[] // For dropdown selections
    minimum       Float?
    maximum       Float?
    unit          String? // %, kg/m3, etc
    isRequired    Boolean               @default(false)
    isActive      Boolean               @default(true)
    createdAt     DateTime              @default(now())
    updatedAt     DateTime              @updatedAt

    // Relations
    product          Product               @relation(fields: [productId], references: [id], onDelete: Cascade)
    rules            ProductModifierRule[]
    harvestModifiers HarvestModifier[]

    @@unique([productId, code])
    @@map("product_modifiers")
}

model ProductModifierRule {
    id              String        @id @default(cuid())
    modifierId      String
    condition       RuleCondition
    priceAdjustment Float // amount to adjust price
    value           String? // For equals condition
    minValue        Float? // For lessThan or between conditions
    maxValue        Float? // For greaterThan or between conditions
    description     String?
    isActive        Boolean       @default(true)
    createdAt       DateTime      @default(now())
    updatedAt       DateTime      @updatedAt

    // Relations
    modifier ProductModifier @relation(fields: [modifierId], references: [id], onDelete: Cascade)

    @@map("product_modifier_rules")
}

model PriceHistory {
    id            String       @id @default(cuid())
    productId     String?
    variantId     String?
    qualityGrade  QualityGrade
    basePrice     Float
    marketPrice   Float?
    premiumRate   Float        @default(0)
    effectiveDate DateTime
    region        String?
    notes         String?
    createdAt     DateTime     @default(now())

    // Relations
    product Product?        @relation(fields: [productId], references: [id])
    variant ProductVariant? @relation(fields: [variantId], references: [id])

    @@map("price_history")
}

model WeatherData {
    id            String   @id @default(cuid())
    farmId        String?
    plotId        String?
    latitude      Float
    longitude     Float
    date          DateTime
    temperature   Float? // celsius
    humidity      Float? // percentage
    rainfall      Float? // mm
    windSpeed     Float? // km/h
    windDirection String? // N, NE, E, SE, S, SW, W, NW
    pressure      Float? // hPa
    uvIndex       Float?
    visibility    Float? // km
    weatherCondition String? // sunny, cloudy, rainy, etc.
    dataSource    String? // manual, weather_station, api
    createdAt     DateTime @default(now())
    updatedAt     DateTime @updatedAt

    // Relations
    farm Farm? @relation(fields: [farmId], references: [id])
    plot Plot? @relation(fields: [plotId], references: [id])

    @@map("weather_data")
}

model WeatherForecast {
    id               String   @id @default(cuid())
    farmId           String?
    plotId           String?
    latitude         Float
    longitude        Float
    forecastDate     DateTime
    minTemperature   Float?
    maxTemperature   Float?
    humidity         Float?
    rainfall         Float?
    windSpeed        Float?
    weatherCondition String?
    confidence       Float? // percentage
    source           String
    createdAt        DateTime @default(now())

    // Relations
    farm Farm? @relation(fields: [farmId], references: [id])
    plot Plot? @relation(fields: [plotId], references: [id])

    @@map("weather_forecasts")
}

model FarmInput {
    id                String     @id @default(cuid())
    farmId            String
    plotId            String?
    inputType         InputType
    productName       String
    brand             String?
    quantity          Float
    unit              String
    cost              Float
    supplier          String?
    supplierContact   String?
    batchNumber       String?
    expiryDate        DateTime?
    applicationDate   DateTime?
    applicationMethod String?
    applicationRate   String? // per hectare or per plant
    activeIngredient  String? // for pesticides/fertilizers
    concentration     Float? // percentage
    notes             String?
    invoiceNumber     String?
    receiptUrl        String?
    createdAt         DateTime   @default(now())
    updatedAt         DateTime   @updatedAt

    // Relations
    farm Farm  @relation(fields: [farmId], references: [id])
    plot Plot? @relation(fields: [plotId], references: [id])

    @@map("farm_inputs")
}

model InputSchedule {
    id              String         @id @default(cuid())
    farmId          String
    plotId          String?
    inputType       InputType
    productName     String
    scheduledDate   DateTime
    quantity        Float
    unit            String
    method          String?
    status          ScheduleStatus @default(PENDING)
    appliedDate     DateTime?
    appliedBy       String?
    actualQuantity  Float?
    notes           String?
    createdAt       DateTime       @default(now())
    updatedAt       DateTime       @updatedAt

    // Relations
    farm Farm  @relation(fields: [farmId], references: [id])
    plot Plot? @relation(fields: [plotId], references: [id])

    @@map("input_schedules")
}

model Supplier {
    id              String   @id @default(cuid())
    name            String
    contactPerson   String?
    phone           String?
    email           String?
    address         String?
    supplierType    SupplierType
    paymentTerms    String?
    deliveryTerms   String?
    qualityCertifications String[]
    isActive        Boolean  @default(true)
    notes           String?
    createdAt       DateTime @default(now())
    updatedAt       DateTime @updatedAt

    @@map("suppliers")
}

model FarmWorker {
    id              String      @id @default(cuid())
    farmerId        String
    workerCode      String      @unique
    name            String
    phone           String?
    email           String?
    address         String?
    identityNumber  String?
    role            WorkerRole
    skillLevel      SkillLevel?
    dailyWage       Float?
    monthlyWage     Float?
    paymentMethod   PaymentMethod?
    bankAccount     String?
    emergencyContact String?
    emergencyPhone  String?
    hireDate        DateTime?
    contractType    ContractType?
    contractEnd     DateTime?
    isActive        Boolean     @default(true)
    notes           String?
    createdAt       DateTime    @default(now())
    updatedAt       DateTime    @updatedAt

    // Relations
    farmer         Farmer          @relation(fields: [farmerId], references: [id])
    laborRecords   LaborRecord[]
    laborSchedules LaborSchedule[]

    @@map("farm_workers")
}

model LaborRecord {
    id           String    @id @default(cuid())
    farmerId     String
    farmId       String
    workerId     String?
    plotId       String?
    workType     WorkType
    hoursWorked  Float
    wages        Float
    workDate     DateTime
    startTime    DateTime?
    endTime      DateTime?
    description  String?
    supervisor   String? // supervisor name or ID
    qualityRating Float? // 1-5 rating
    weather      String?
    notes        String?
    approved     Boolean   @default(false)
    approvedBy   String?
    approvedDate DateTime?
    paymentStatus PaymentStatus @default(PENDING)
    paidDate     DateTime?
    createdAt    DateTime  @default(now())
    updatedAt    DateTime  @updatedAt

    // Relations
    farmer Farmer     @relation(fields: [farmerId], references: [id])
    farm   Farm       @relation(fields: [farmId], references: [id])
    worker FarmWorker? @relation(fields: [workerId], references: [id])
    plot   Plot?      @relation(fields: [plotId], references: [id])

    @@map("labor_records")
}

model LaborSchedule {
    id           String         @id @default(cuid())
    farmerId     String
    farmId       String
    workerId     String?
    plotId       String?
    workType     WorkType
    scheduledDate DateTime
    estimatedHours Float
    estimatedWage Float?
    status       ScheduleStatus @default(PENDING)
    assignedBy   String?
    notes        String?
    actualRecord String? // reference to LaborRecord ID
    createdAt    DateTime       @default(now())
    updatedAt    DateTime       @updatedAt

    // Relations
    farmer Farmer     @relation(fields: [farmerId], references: [id])
    farm   Farm       @relation(fields: [farmId], references: [id])
    worker FarmWorker? @relation(fields: [workerId], references: [id])
    plot   Plot?      @relation(fields: [plotId], references: [id])

    @@map("labor_schedules")
}

model Equipment {
    id                String              @id @default(cuid())
    farmerId          String
    equipmentCode     String              @unique
    name              String
    type              EquipmentType
    brand             String?
    model             String?
    serialNumber      String?
    purchaseDate      DateTime?
    purchasePrice     Float?
    currentValue      Float?
    condition         EquipmentCondition
    status            EquipmentStatus     @default(ACTIVE)
    location          String? // where equipment is stored
    fuelType          String? // diesel, petrol, electric, manual
    capacity          String? // engine capacity, load capacity
    powerRating       String? // horsepower, wattage
    yearManufactured  Int?
    warranty          String?
    insurancePolicy   String?
    insuranceExpiry   DateTime?
    lastMaintenance   DateTime?
    nextMaintenance   DateTime?
    maintenanceCost   Float?
    operatingHours    Float? // total operating hours
    isActive          Boolean             @default(true)
    notes             String?
    photoUrl          String?
    manualUrl         String?
    createdAt         DateTime            @default(now())
    updatedAt         DateTime            @updatedAt

    // Relations
    farmer            Farmer              @relation(fields: [farmerId], references: [id])
    maintenanceRecords MaintenanceRecord[]
    usageRecords      EquipmentUsage[]

    @@map("equipment")
}

model MaintenanceRecord {
    id              String          @id @default(cuid())
    equipmentId     String
    maintenanceType MaintenanceType
    description     String
    cost            Float
    serviceProvider String?
    serviceDate     DateTime
    nextServiceDue  DateTime?
    partsReplaced   String[]
    laborHours      Float?
    invoiceNumber   String?
    receiptUrl      String?
    performedBy     String?
    notes           String?
    createdAt       DateTime        @default(now())
    updatedAt       DateTime        @updatedAt

    // Relations
    equipment Equipment @relation(fields: [equipmentId], references: [id])

    @@map("maintenance_records")
}

model EquipmentUsage {
    id            String    @id @default(cuid())
    equipmentId   String
    farmId        String?
    plotId        String?
    operatorName  String?
    usageDate     DateTime
    startTime     DateTime?
    endTime       DateTime?
    hoursUsed     Float
    fuelConsumed  Float?
    workType      WorkType?
    description   String?
    meterReading  Float? // odometer, hour meter reading
    notes         String?
    createdAt     DateTime  @default(now())
    updatedAt     DateTime  @updatedAt

    // Relations
    equipment Equipment @relation(fields: [equipmentId], references: [id])
    farm      Farm?     @relation(fields: [farmId], references: [id])
    plot      Plot?     @relation(fields: [plotId], references: [id])

    @@map("equipment_usage")
}

model Asset {
    id              String      @id @default(cuid())
    farmerId        String
    assetCode       String      @unique
    name            String
    type            AssetType
    category        String? // building, land improvement, infrastructure
    description     String?
    purchaseDate    DateTime?
    purchasePrice   Float?
    currentValue    Float?
    depreciation    Float? // annual depreciation rate
    condition       AssetCondition
    location        String?
    size            String? // dimensions, area
    material        String? // construction material
    lifespan        Int? // expected lifespan in years
    warrantyExpiry  DateTime?
    insurancePolicy String?
    insuranceExpiry DateTime?
    photoUrls       String[]
    documentUrls    String[]
    isActive        Boolean     @default(true)
    notes           String?
    createdAt       DateTime    @default(now())
    updatedAt       DateTime    @updatedAt

    // Relations
    farmer Farmer @relation(fields: [farmerId], references: [id])

    @@map("assets")
}

model BuyerReview {
    id          String   @id @default(cuid())
    buyerId     String
    farmerId    String
    rating      Float // 1-5 rating
    comment     String?
    reviewType  ReviewType
    procurementId String? // reference to procurement if applicable
    isAnonymous Boolean  @default(false)
    createdAt   DateTime @default(now())
    updatedAt   DateTime @updatedAt

    // Relations
    buyer  Buyer  @relation(fields: [buyerId], references: [id])
    farmer Farmer @relation(fields: [farmerId], references: [id])

    @@map("buyer_reviews")
}

model PestDiseaseRecord {
    id              String            @id @default(cuid())
    farmId          String
    plotId          String?
    type            PestDiseaseType
    name            String
    scientificName  String?
    severity        SeverityLevel
    affectedArea    Float? // percentage or hectares
    identifiedDate  DateTime
    identifiedBy    String? // farmer, expert, etc.
    symptoms        String?
    treatmentApplied String?
    treatmentDate   DateTime?
    treatmentCost   Float?
    treatmentMethod String?
    preventionTaken String?
    resolved        Boolean           @default(false)
    resolvedDate    DateTime?
    recurrence      Boolean           @default(false)
    photos          String[] // photo URLs
    notes           String?
    createdAt       DateTime          @default(now())
    updatedAt       DateTime          @updatedAt

    // Relations
    farm Farm  @relation(fields: [farmId], references: [id])
    plot Plot? @relation(fields: [plotId], references: [id])

    @@map("pest_disease_records")
}

model FinancialRecord {
    id              String            @id @default(cuid())
    farmerId        String
    farmId          String?
    plotId          String?
    type            TransactionType
    category        String
    subcategory     String?
    amount          Float
    currency        String            @default("IDR")
    description     String
    transactionDate DateTime
    paymentMethod   PaymentMethod?
    receiptNumber   String?
    invoiceNumber   String?
    referenceNumber String?
    taxAmount       Float?            @default(0)
    bankAccount     String?
    payee           String? // who received payment
    approvedBy      String? // admin who approved
    status          TransactionStatus @default(PENDING)
    notes           String?
    attachmentUrls  String[]
    createdAt       DateTime          @default(now())
    updatedAt       DateTime          @updatedAt

    // Relations
    farmer Farmer @relation(fields: [farmerId], references: [id])
    farm   Farm?  @relation(fields: [farmId], references: [id])
    plot   Plot?  @relation(fields: [plotId], references: [id])

    @@map("financial_records")
}

model SoilTest {
    id              String   @id @default(cuid())
    farmId          String
    plotId          String?
    testCode        String   @unique
    testDate        DateTime
    sampleDepth     Float? // cm
    sampleLocation  String?
    gpsCoordinates  Json? // GeoJSON point
    
    // Basic soil properties
    pH              Float?
    organicMatter   Float? // percentage
    soilTexture     String? // clay, sand, loam, etc.
    bulkDensity     Float? // g/cm³
    porosity        Float? // percentage
    
    // Nutrients (ppm)
    nitrogen        Float?
    phosphorus      Float?
    potassium       Float?
    calcium         Float?
    magnesium       Float?
    sulfur          Float?
    
    // Micronutrients (ppm)
    zinc            Float?
    iron            Float?
    manganese       Float?
    copper          Float?
    boron           Float?
    
    // Other properties
    conductivity    Float? // dS/m
    cationExchangeCapacity Float? // cmol/kg
    baseStaturation Float? // percentage
    carbonNitrogenRatio Float?
    
    // Analysis details
    recommendations String?
    testLaboratory  String?
    technicianName  String?
    testCost        Float?
    reportUrl       String?
    
    notes           String?
    createdAt       DateTime @default(now())
    updatedAt       DateTime @updatedAt

    // Relations
    farm Farm  @relation(fields: [farmId], references: [id])
    plot Plot? @relation(fields: [plotId], references: [id])

    @@map("soil_tests")
}

model Message {
    id           String      @id @default(cuid())
    senderId     String
    receiverId   String?
    groupId      String?
    subject      String?
    content      String
    messageType  MessageType
    priority     Priority    @default(NORMAL)
    isRead       Boolean     @default(false)
    readAt       DateTime?
    attachments  String[] // file URLs
    deliveryStatus MessageStatus @default(SENT)
    sentAt       DateTime    @default(now())
    createdAt    DateTime    @default(now())
    updatedAt    DateTime    @updatedAt

    @@map("messages")
}

model MarketPrice {
    id            String       @id @default(cuid())
    productId     String
    variantId     String?
    market        String
    region        String
    price         Float
    unit          String       @default("kg")
    qualityGrade  QualityGrade
    priceDate     DateTime
    source        String? // where price data came from
    volume        Float? // trading volume
    trend         PriceTrend?
    verified      Boolean      @default(false)
    verifiedBy    String?
    notes         String?
    createdAt     DateTime     @default(now())

    // Relations
    product Product        @relation(fields: [productId], references: [id])
    variant ProductVariant? @relation(fields: [variantId], references: [id])

    @@map("market_prices")
}

model MarketDemand {
    id              String      @id @default(cuid())
    productId       String
    variantId       String?
    region          String
    demandLevel     DemandLevel
    estimatedVolume Float?
    priceRange      String?
    season          String?
    factors         String[] // factors affecting demand
    forecastDate    DateTime
    forecastBy      String?
    accuracy        Float? // percentage
    notes           String?
    createdAt       DateTime    @default(now())

    // Relations
    product Product        @relation(fields: [productId], references: [id])
    variant ProductVariant? @relation(fields: [variantId], references: [id])

    @@map("market_demand")
}

// Enums
enum UserRole {
    FARMER
    BUYER
    ADMINISTRATOR
}

enum QualityGrade {
    A
    B
    C
}

enum ProcurementStatus {
    PENDING
    QUALITY_ASSESSMENT
    APPROVED
    REJECTED
    IN_TRANSIT
    DELIVERED
    INVOICED
    PAID
    COMPLETED
    CANCELLED
    PARTIALLY_REJECTED
}

enum TrainingStatus {
    ENROLLED
    IN_PROGRESS
    COMPLETED
    DROPPED
}

enum CertificationStatus {
    PENDING
    APPROVED
    REJECTED
    EXPIRED
}

enum ArticleStatus {
    DRAFT
    PUBLISHED
    ARCHIVED
}

enum ModifierSelectionType {
    DROPDOWN
    INPUT
}

enum NominalType {
    NOMINAL
    PERCENTAGE
}

enum RuleCondition {
    EQUALS
    LESS_THAN
    GREATER_THAN
    BETWEEN
}

enum Gender {
    MALE
    FEMALE
    OTHER
}

enum IdentityType {
    KTP // Indonesian ID Card
    PASSPORT
    DRIVING_LICENSE
    OTHER
}

enum EducationLevel {
    NO_FORMAL_EDUCATION
    ELEMENTARY
    MIDDLE_SCHOOL
    HIGH_SCHOOL
    DIPLOMA
    BACHELOR
    MASTER
    DOCTORATE
}

enum FarmerStatus {
    ACTIVE
    INACTIVE
    SUSPENDED
    PENDING_VERIFICATION
    BLACKLISTED
}

enum AttachmentType {
    PROFILE_PHOTO
    ID_CARD_FRONT
    ID_CARD_BACK
    FARMING_LICENSE
    LAND_CERTIFICATE
    BANK_STATEMENT
    CONTRACT
    CERTIFICATE
    OTHER_DOCUMENT
}

enum MaritalStatus {
    SINGLE
    MARRIED
    DIVORCED
    WIDOWED
    SEPARATED
}

enum Religion {
    ISLAM
    CHRISTIAN
    CATHOLIC
    HINDU
    BUDDHIST
    CONFUCIAN
    OTHER
}

enum LandOwnership {
    OWNER
    TENANT
    SHARECROPPER
    COOPERATIVE_MEMBER
    GOVERNMENT_LEASE
    FAMILY_LAND
    OTHER
}

enum WaterSource {
    RAIN_FED
    IRRIGATION_CANAL
    WELL
    RIVER
    POND
    GROUNDWATER
    SPRING
    MIXED
}

enum IrrigationType {
    FLOOD
    SPRINKLER
    DRIP
    FURROW
    MANUAL
    NONE
}

enum SlopeType {
    FLAT
    GENTLE
    MODERATE
    STEEP
    VERY_STEEP
}

enum ClimateType {
    TROPICAL_WET
    TROPICAL_DRY
    SUBTROPICAL
    TEMPERATE
    HIGHLAND
}

enum RoadType {
    PAVED
    GRAVEL
    DIRT
    FOOTPATH
    NO_ACCESS
}

enum FarmOwnership {
    PRIVATE_OWNED
    LEASED
    SHARECROPPED
    COOPERATIVE
    GOVERNMENT
    COMMUNAL
    FAMILY_INHERITED
}

enum FarmingSystem {
    MONOCULTURE
    POLYCULTURE
    MIXED_FARMING
    ORGANIC
    CONVENTIONAL
    INTEGRATED
    PERMACULTURE
    AGROFORESTRY
}

enum FarmAttachmentType {
    MAIN_PHOTO
    AERIAL_PHOTO
    SOIL_PHOTO
    CROP_PHOTO
    INFRASTRUCTURE_PHOTO
    LAND_CERTIFICATE
    SURVEY_MAP
    WATER_SOURCE_PHOTO
    ENTRANCE_PHOTO
    BOUNDARY_PHOTO
    EQUIPMENT_PHOTO
    STORAGE_PHOTO
    OTHER_DOCUMENT
}

enum PaymentMethod {
    CASH
    BANK_TRANSFER
    MOBILE_MONEY
    CHECK
    DIGITAL_WALLET
    CREDIT
    BARTER
    INSTALLMENT
}

enum ProcurementAttachmentType {
    PRODUCT_PHOTO
    QUALITY_ASSESSMENT_PHOTO
    WEIGHING_PHOTO
    PACKAGING_PHOTO
    LOADING_PHOTO
    DELIVERY_PHOTO
    CONTRACT_DOCUMENT
    INVOICE
    RECEIPT
    PAYMENT_PROOF
    QUALITY_CERTIFICATE
    TRANSPORT_DOCUMENT
    REJECTION_PHOTO
    SIGNATURE_DOCUMENT
    OTHER_DOCUMENT
}

// Input Management Enums
enum InputType {
    SEED
    FERTILIZER
    PESTICIDE
    HERBICIDE
    FUNGICIDE
    INSECTICIDE
    EQUIPMENT_RENTAL
    FUEL
    IRRIGATION_WATER
    MULCH
    COMPOST
    LIME
    OTHER
}

enum ScheduleStatus {
    PENDING
    SCHEDULED
    IN_PROGRESS
    COMPLETED
    CANCELLED
    OVERDUE
}

enum SupplierType {
    SEED_SUPPLIER
    FERTILIZER_SUPPLIER
    PESTICIDE_SUPPLIER
    EQUIPMENT_SUPPLIER
    GENERAL_SUPPLIER
    COOPERATIVE
    GOVERNMENT_AGENCY
}

// Labor Management Enums
enum WorkerRole {
    PERMANENT
    SEASONAL
    DAILY
    CONTRACTOR
    SUPERVISOR
    FOREMAN
    SPECIALIST
}

enum SkillLevel {
    BEGINNER
    INTERMEDIATE
    ADVANCED
    EXPERT
}

enum ContractType {
    PERMANENT
    TEMPORARY
    SEASONAL
    PROJECT_BASED
    DAILY
}

enum WorkType {
    PLANTING
    WEEDING
    FERTILIZING
    HARVESTING
    IRRIGATION
    PEST_CONTROL
    SOIL_PREPARATION
    PRUNING
    GENERAL_MAINTENANCE
    EQUIPMENT_OPERATION
    PROCESSING
    PACKAGING
    TRANSPORT
}

enum PaymentStatus {
    PENDING
    APPROVED
    PAID
    OVERDUE
    CANCELLED
}

// Equipment & Asset Enums
enum EquipmentType {
    TRACTOR
    HARVESTER
    PLANTER
    CULTIVATOR
    IRRIGATION_SYSTEM
    SPRAYER
    THRESHER
    MOWER
    TOOLS
    VEHICLE
    PROCESSING_EQUIPMENT
    STORAGE_EQUIPMENT
}

enum EquipmentCondition {
    EXCELLENT
    GOOD
    FAIR
    POOR
    NEEDS_REPAIR
    OUT_OF_ORDER
}

enum EquipmentStatus {
    ACTIVE
    INACTIVE
    MAINTENANCE
    REPAIR
    RETIRED
}

enum MaintenanceType {
    PREVENTIVE
    CORRECTIVE
    EMERGENCY
    OVERHAUL
    INSPECTION
    CALIBRATION
}

enum AssetType {
    BUILDING
    LAND_IMPROVEMENT
    INFRASTRUCTURE
    VEHICLE
    MACHINERY
    FURNITURE
    TECHNOLOGY
    OTHER
}

enum AssetCondition {
    NEW
    EXCELLENT
    GOOD
    FAIR
    POOR
    DAMAGED
}

// Buyer Enums
enum BuyerType {
    INDIVIDUAL
    WHOLESALER
    RETAILER
    PROCESSOR
    EXPORTER
    COOPERATIVE
    GOVERNMENT
    RESTAURANT
    HOTEL
}

enum BusinessSize {
    MICRO
    SMALL
    MEDIUM
    LARGE
    ENTERPRISE
}

enum BuyerStatus {
    ACTIVE
    INACTIVE
    SUSPENDED
    PENDING_VERIFICATION
    BLACKLISTED
}

enum ReviewType {
    PAYMENT_TIMELINESS
    QUALITY_REQUIREMENTS
    COMMUNICATION
    OVERALL_EXPERIENCE
    PRICE_FAIRNESS
}

// Pest & Disease Enums
enum PestDiseaseType {
    PEST
    DISEASE
    WEED
    NUTRIENT_DEFICIENCY
    VIRUS
    FUNGUS
    BACTERIA
}

enum SeverityLevel {
    LOW
    MEDIUM
    HIGH
    CRITICAL
    CATASTROPHIC
}

// Financial Enums
enum TransactionType {
    INCOME
    EXPENSE
    INVESTMENT
    LOAN
    LOAN_PAYMENT
    INSURANCE_PAYMENT
    TAX_PAYMENT
    GRANT
    SUBSIDY
    REFUND
}

enum TransactionStatus {
    PENDING
    APPROVED
    COMPLETED
    REJECTED
    CANCELLED
    FAILED
}

// Communication Enums
enum MessageType {
    PERSONAL
    BROADCAST
    NOTIFICATION
    ALERT
    SYSTEM
    ANNOUNCEMENT
}

enum Priority {
    LOW
    NORMAL
    HIGH
    URGENT
    CRITICAL
}

enum MessageStatus {
    SENT
    DELIVERED
    READ
    FAILED
    PENDING
}

// Market Intelligence Enums
enum PriceTrend {
    RISING
    FALLING
    STABLE
    VOLATILE
}

enum DemandLevel {
    VERY_LOW
    LOW
    MODERATE
    HIGH
    VERY_HIGH
    EXCESSIVE
}