defmodule DaProductApp.Seeds.MerchantManagementSeeds do
  @moduledoc """
  Seeds for testing the merchant management system.
  
  Creates sample partners and merchants for development and testing.
  """

  alias DaProductApp.Repo
  alias DaProductApp.Partners.Partner
  alias DaProductApp.Merchants.Merchant

  def run do
    # Create sample partners
    partners = create_sample_partners()
    
    # Create sample merchants for each partner
    Enum.each(partners, &create_sample_merchants_for_partner/1)
    
    IO.puts("✅ Merchant management seeds completed!")
  end

  defp create_sample_partners do
    partners_data = [
      %{
        partner_code: "SINGAPORE_PARTNER_001",
        partner_name: "Singapore Payment Solutions",
        partner_type: "AGGREGATOR",
        corridor: "SINGAPORE",
        base_currency: "SGD",
        api_endpoint: "https://api.sg-payments.com/v1",
        commission_rate: Decimal.new("1.5"),
        status: "ACTIVE",
        contact_email: "integration@sg-payments.com",
        contact_phone: "+65-6123-4567",
        onboarded_at: DateTime.utc_now()
      },
      %{
        partner_code: "UAE_PARTNER_001", 
        partner_name: "UAE Digital Payments",
        partner_type: "AGGREGATOR",
        corridor: "UAE",
        base_currency: "AED",
        api_endpoint: "https://api.uae-digital.com/v1",
        commission_rate: Decimal.new("2.0"),
        status: "ACTIVE",
        contact_email: "support@uae-digital.com",
        contact_phone: "+971-4-123-4567",
        onboarded_at: DateTime.utc_now()
      },
      %{
        partner_code: "USA_PARTNER_001",
        partner_name: "US Payment Gateway",
        partner_type: "PROCESSOR",
        corridor: "USA",
        base_currency: "USD",
        api_endpoint: "https://api.uspayments.com/v1", 
        commission_rate: Decimal.new("2.5"),
        status: "ACTIVE",
        contact_email: "api@uspayments.com",
        contact_phone: "+1-555-123-4567",
        onboarded_at: DateTime.utc_now()
      },
      %{
        partner_code: "DOMESTIC_PARTNER_001",
        partner_name: "India Merchant Services",
        partner_type: "ACQUIRER",
        corridor: "DOMESTIC",
        base_currency: "INR",
        api_endpoint: "https://api.indiamerchant.com/v1",
        commission_rate: Decimal.new("1.0"),
        status: "ACTIVE",
        contact_email: "support@indiamerchant.com",
        contact_phone: "+91-80-1234-5678",
        onboarded_at: DateTime.utc_now()
      }
    ]

    Enum.map(partners_data, fn partner_attrs ->
      case Repo.get_by(Partner, partner_code: partner_attrs.partner_code) do
        nil ->
          partner = %Partner{}
          |> Partner.changeset(partner_attrs)
          |> Repo.insert!()
          
          IO.puts("✅ Created partner: #{partner.partner_name}")
          partner
        
        existing_partner ->
          IO.puts("⚠️  Partner already exists: #{existing_partner.partner_name}")
          existing_partner
      end
    end)
  end

  defp create_sample_merchants_for_partner(partner) do
    merchants_data = case partner.corridor do
      "SINGAPORE" -> singapore_merchants()
      "UAE" -> uae_merchants()
      "USA" -> usa_merchants()
      "DOMESTIC" -> domestic_merchants()
    end

    Enum.each(merchants_data, fn merchant_attrs ->
      attrs = Map.put(merchant_attrs, :partner_id, partner.id)
      
      case Repo.get_by(Merchant, merchant_code: merchant_attrs.merchant_code) do
        nil ->
          %Merchant{}
          |> Merchant.changeset(attrs)
          |> Repo.insert!()
          |> tap(fn merchant ->
            IO.puts("✅ Created merchant: #{merchant.brand_name} (#{merchant.merchant_code})")
          end)
        
        existing_merchant ->
          IO.puts("⚠️  Merchant already exists: #{existing_merchant.brand_name}")
      end
    end)
  end

  defp singapore_merchants do
    [
      %{
        merchant_code: "SG_COFFEE_001",
        mid: "SGCOF001",
        tid: "T001",
        sid: "S001",
        brand_name: "Singapore Coffee House",
        legal_name: "Singapore Coffee House Pte Ltd",
        merchant_vpa: "coffeehouse@sgpayments",
        business_type: "RETAIL",
        business_category: "5814",
        merchant_type: "SMALL",
        merchant_genre: "RETAIL",
        corridor: "SINGAPORE",
        local_currency: "SGD",
        country_code: "SG",
        max_transaction_limit: Decimal.new("5000.00"),
        daily_transaction_limit: Decimal.new("50000.00"),
        settlement_frequency: "T+1",
        settlement_account_number: "123456789",
        settlement_account_ifsc: "SGBK0001234",
        contact_email: "payments@sgcoffee.com",
        contact_phone: "+65-6234-5678",
        address: "123 Orchard Road",
        city: "Singapore",
        state: "Singapore",
        pincode: "238123",
        compliance_status: "VERIFIED",
        risk_category: "LOW",
        status: "ACTIVE",
        onboarded_at: DateTime.utc_now()
      },
      %{
        merchant_code: "SG_RETAIL_002",
        mid: "SGRET002", 
        tid: "T002",
        sid: "S002",
        brand_name: "Singapore Electronics Store",
        legal_name: "SG Electronics Pte Ltd",
        merchant_vpa: "electronics@sgpayments",
        business_type: "RETAIL",
        business_category: "5732",
        merchant_type: "MEDIUM",
        merchant_genre: "RETAIL",
        corridor: "SINGAPORE",
        local_currency: "SGD",
        country_code: "SG",
        max_transaction_limit: Decimal.new("20000.00"),
        daily_transaction_limit: Decimal.new("200000.00"),
        settlement_frequency: "T+0",
        settlement_account_number: "987654321",
        settlement_account_ifsc: "SGBK0009876",
        contact_email: "billing@sgelec.com",
        contact_phone: "+65-6345-6789",
        address: "456 Marina Bay",
        city: "Singapore",
        state: "Singapore", 
        pincode: "018956",
        compliance_status: "VERIFIED",
        risk_category: "MEDIUM",
        status: "ACTIVE",
        onboarded_at: DateTime.utc_now()
      }
    ]
  end

  defp uae_merchants do
    [
      %{
        merchant_code: "AE_REST_001",
        mid: "AEREST001",
        tid: "T001",
        sid: "S001",
        brand_name: "Dubai Fine Dining",
        legal_name: "Dubai Fine Dining LLC",
        merchant_vpa: "restaurant@uaepay",
        business_type: "SERVICES",
        business_category: "5812",
        merchant_type: "MEDIUM",
        merchant_genre: "RETAIL",
        corridor: "UAE",
        local_currency: "AED",
        country_code: "AE",
        max_transaction_limit: Decimal.new("15000.00"),
        daily_transaction_limit: Decimal.new("150000.00"),
        settlement_frequency: "T+1",
        settlement_account_number: "AE123456789",
        settlement_account_ifsc: "AEBK0001234",
        contact_email: "payments@dubaifine.ae",
        contact_phone: "+971-4-234-5678",
        address: "Sheikh Zayed Road",
        city: "Dubai",
        state: "Dubai",
        pincode: "000000",
        compliance_status: "VERIFIED",
        risk_category: "MEDIUM",
        status: "ACTIVE",
        onboarded_at: DateTime.utc_now()
      }
    ]
  end

  defp usa_merchants do
    [
      %{
        merchant_code: "US_TECH_001",
        mid: "USTECH001",
        tid: "T001",
        sid: "S001",
        brand_name: "Silicon Valley Tech Store",
        legal_name: "SV Tech Store Inc",
        merchant_vpa: "techstore@uspay",
        business_type: "ECOMMERCE",
        business_category: "5045",
        merchant_type: "LARGE",
        merchant_genre: "ONLINE",
        corridor: "USA",
        local_currency: "USD",
        country_code: "US",
        max_transaction_limit: Decimal.new("50000.00"),
        daily_transaction_limit: Decimal.new("500000.00"),
        settlement_frequency: "T+0",
        settlement_account_number: "US123456789",
        settlement_account_ifsc: "USBK0001234",
        contact_email: "billing@svtech.com",
        contact_phone: "+1-555-234-5678",
        address: "1234 Technology Drive",
        city: "San Francisco",
        state: "California",
        pincode: "941050",
        compliance_status: "VERIFIED",
        risk_category: "LOW",
        status: "ACTIVE",
        onboarded_at: DateTime.utc_now()
      }
    ]
  end

  defp domestic_merchants do
    [
      %{
        merchant_code: "IN_GROCERY_001",
        mid: "INGROC001",
        tid: "T001",
        sid: "S001",
        brand_name: "Mumbai Grocery Mart",
        legal_name: "Mumbai Grocery Mart Pvt Ltd",
        merchant_vpa: "grocery@indiapay",
        business_type: "RETAIL",
        business_category: "5411",
        merchant_type: "SMALL",
        merchant_genre: "RETAIL",
        corridor: "DOMESTIC",
        local_currency: "INR",
        country_code: "IN",
        max_transaction_limit: Decimal.new("25000.00"),
        daily_transaction_limit: Decimal.new("100000.00"),
        settlement_frequency: "T+1",
        settlement_account_number: "123456789012",
        settlement_account_ifsc: "SBIN0001234",
        contact_email: "payments@mumbaigrocer.in",
        contact_phone: "+91-98765-43210",
        address: "123 Commercial Street",
        city: "Mumbai",
        state: "Maharashtra",
        pincode: "400001",
        gstin: "27ABCDE1234F1Z5",
        pan: "ABCDE1234F",
        compliance_status: "VERIFIED",
        risk_category: "LOW",
        status: "ACTIVE",
        onboarded_at: DateTime.utc_now()
      },
      %{
        merchant_code: "IN_PHARMA_002",
        mid: "INPHAR002",
        tid: "T002",
        sid: "S002",
        brand_name: "Bangalore Health Pharmacy",
        legal_name: "Bangalore Health Pharmacy Pvt Ltd",
        merchant_vpa: "pharmacy@indiapay",
        business_type: "RETAIL",
        business_category: "5912",
        merchant_type: "MEDIUM",
        merchant_genre: "RETAIL",
        corridor: "DOMESTIC",
        local_currency: "INR",
        country_code: "IN",
        max_transaction_limit: Decimal.new("50000.00"),
        daily_transaction_limit: Decimal.new("200000.00"),
        settlement_frequency: "T+0",
        settlement_account_number: "987654321098",
        settlement_account_ifsc: "HDFC0001234",
        contact_email: "billing@blrhealth.in",
        contact_phone: "+91-80-1234-5678",
        address: "456 MG Road",
        city: "Bangalore",
        state: "Karnataka",
        pincode: "560001",
        gstin: "29FGHIJ5678K1Z5",
        pan: "FGHIJ5678K",
        compliance_status: "VERIFIED",
        risk_category: "MEDIUM",
        status: "ACTIVE",
        onboarded_at: DateTime.utc_now()
      }
    ]
  end
end

# Run the seeds
DaProductApp.Seeds.MerchantManagementSeeds.run()