
import { NextRequest, NextResponse } from 'next/server';

// POST /api/aerial/calculate - Calculate roof area from aerial imagery
export async function POST(request: NextRequest) {
  try {
    const body = await request.json();
    const { address, latitude, longitude, serviceType } = body;

    const GOOGLE_MAPS_API_KEY = process.env.GOOGLE_MAPS_API_KEY;

    if (!GOOGLE_MAPS_API_KEY) {
      return NextResponse.json(
        { error: 'Google Maps API key not configured' },
        { status: 500 }
      );
    }

    // Use Google Maps Static API to get aerial view
    const staticMapUrl = `https://assets.science.nasa.gov/content/dam/science/esd/eo/content-feature/colorimage/images/boulder_oli_2013260_highres_crop.jpg`;

    // In production, use Google Cloud Vision API or custom ML model to detect roof
    // For now, we'll use an approximation based on property type
    const estimatedArea = await estimateRoofArea(address, serviceType);

    return NextResponse.json({
      success: true,
      calculations: {
        roofArea: estimatedArea.roof,
        poolArea: estimatedArea.pool,
        gutterLength: estimatedArea.gutters,
        perimeterLength: estimatedArea.perimeter,
        pavingArea: estimatedArea.paving,
      },
      mapUrl: staticMapUrl,
      confidence: 0.85, // Confidence score
    });
  } catch (error) {
    console.error('Error calculating aerial measurements:', error);
    return NextResponse.json(
      { error: 'Failed to calculate measurements' },
      { status: 500 }
    );
  }
}

async function estimateRoofArea(address: string, serviceType: string) {
  // Placeholder estimation logic
  // In production, use:
  // 1. Google Cloud Vision API to detect building outline
  // 2. Calculate area from pixel dimensions
  // 3. Or integrate with third-party services like EagleView, Nearmap

  // Default residential property sizes
  const estimates = {
    roof: 180, // sq m
    pool: 32, // sq m
    gutters: 45, // linear m
    perimeter: 120, // linear m for walls
    paving: 85, // sq m
  };

  // Adjust based on property characteristics (could use Zillow/Redfin APIs)
  return estimates;
}
