import { NextRequest, NextResponse } from 'next/server';
import { processImageWithSmartCrop } from '@mintel/image-processor';

export async function GET(request: NextRequest) {
    const { searchParams } = new URL(request.url);
    const url = searchParams.get('url');
    let width = parseInt(searchParams.get('w') || '800');
    let height = parseInt(searchParams.get('h') || '600');
    let q = parseInt(searchParams.get('q') || '80');

    if (!url) {
        return NextResponse.json({ error: 'Missing url parameter' }, { status: 400 });
    }

    try {
        // 1. Fetch image from original URL
        const response = await fetch(url);
        if (!response.ok) {
            return NextResponse.json({ error: 'Failed to fetch original image' }, { status: response.status });
        }

        const arrayBuffer = await response.arrayBuffer();
        const buffer = Buffer.from(arrayBuffer);

        // 2. Process image with Face-API and Sharp
        const processedBuffer = await processImageWithSmartCrop(buffer, {
            width,
            height,
            format: 'webp',
            quality: q,
        });

        // 3. Return the processed image
        return new NextResponse(new Uint8Array(processedBuffer), {
            status: 200,
            headers: {
                'Content-Type': 'image/webp',
                'Cache-Control': 'public, max-age=31536000, immutable',
            },
        });
    } catch (error) {
        console.error('Image Processing Error:', error);
        return NextResponse.json({ error: 'Failed to process image' }, { status: 500 });
    }
}