/**
 * NocoDB Order Mapper
 * Maps Stripe Checkout Session data to NocoDB OrderRecord format
 */

/**
 * Map Stripe session data to NocoDB OrderRecord format
 * @param {Object} session - Stripe checkout session object
 * @param {Object} order - Local database order object
 * @returns {Object} NocoDB-compatible order record
 */
export function mapStripeSessionToNocoDBOrder(session, order) {
  const metadata = session.metadata || {};
  const customerDetails = session.customer_details || {};
  const address = customerDetails.address || {};
  const taxIds = customerDetails.tax_ids || [];

  return {
    // Order identification
    orderId: order.id,
    status: 'paid', // Will be updated to 'fulfilled' after Wren order
    source: determineOrderSource(session),

    // Payment information
    stripeSessionId: session.id,
    stripePaymentIntent: session.payment_intent || null,
    stripeCustomerId: session.customer || null,
    baseAmount: metadata.baseAmount || order.base_amount?.toString() || '0',
    processingFee: metadata.processingFee || order.processing_fee?.toString() || '0',
    totalAmount: session.amount_total?.toString() || order.total_amount?.toString() || '0',
    currency: session.currency?.toUpperCase() || order.currency || 'USD',
    amountUSD: calculateUSDAmount(session.amount_total, session.currency),
    paymentMethod: session.payment_method_types?.[0] || null,

    // Carbon offset details
    co2Tons: metadata.tons || order.tons?.toString() || '0',
    portfolioId: metadata.portfolioId || order.portfolio_id?.toString() || '',
    portfolioName: null, // Will be populated later from Wren API
    wrenOrderId: null, // Will be populated after fulfillment
    certificateUrl: null, // Will be populated after fulfillment
    fulfilledAt: null, // Will be set when order is fulfilled

    // Customer information
    customerName: customerDetails.name || 'Unknown',
    customerEmail: customerDetails.email || order.customer_email || '',
    customerPhone: customerDetails.phone || null,
    businessName: customerDetails.business_name || null,
    taxIdType: taxIds[0]?.type || null,
    taxIdValue: taxIds[0]?.value || null,

    // Billing address
    billingLine1: address.line1 || null,
    billingLine2: address.line2 || null,
    billingCity: address.city || null,
    billingState: address.state || null,
    billingPostalCode: address.postal_code || null,
    billingCountry: address.country || null,

    // Vessel information (from metadata or order, if available)
    vesselName: metadata.vesselName || order.vessel_name || null,
    imoNumber: metadata.imoNumber || order.imo_number || null,
    vesselType: metadata.vesselType || null,
    vesselLength: metadata.vesselLength || null,

    // Trip details (from metadata, if available)
    departurePort: metadata.departurePort || null,
    arrivalPort: metadata.arrivalPort || null,
    distance: metadata.distance || null,
    avgSpeed: metadata.avgSpeed || null,
    duration: metadata.duration || null,
    enginePower: metadata.enginePower || null,

    // Administrative
    notes: null,
  };
}

/**
 * Determine order source from session data
 * @param {Object} session - Stripe checkout session object
 * @returns {string} Order source
 */
function determineOrderSource(session) {
  const metadata = session.metadata || {};

  // Check if source is specified in metadata
  if (metadata.source) {
    return metadata.source;
  }

  // Check success URL for mobile app indicator
  if (session.success_url?.includes('mobile-app')) {
    return 'mobile-app';
  }

  // Default to web
  return 'web';
}

/**
 * Calculate USD amount for reporting
 * @param {number} amount - Amount in cents
 * @param {string} currency - Currency code
 * @returns {string} USD amount in cents
 */
function calculateUSDAmount(amount, currency) {
  if (!amount) return '0';

  // If already USD, return as-is
  if (currency?.toLowerCase() === 'usd') {
    return amount.toString();
  }

  // TODO: Implement currency conversion using real-time rates
  // For now, return the original amount
  // In production, fetch rates from an API or use a conversion service
  return amount.toString();
}

/**
 * Update NocoDB order with Wren fulfillment data
 * @param {string} orderId - Order ID
 * @param {Object} wrenOrder - Wren API order response
 * @returns {Object} Update data for NocoDB
 */
export function mapWrenFulfillmentData(orderId, wrenOrder) {
  return {
    wrenOrderId: wrenOrder.id,
    certificateUrl: wrenOrder.certificate_url || null,
    fulfilledAt: new Date().toISOString(),
    status: 'fulfilled',
  };
}