import { NextResponse } from 'next/server';
import {
    validateSitemapUrls,
    getSitemapStats,
    generateSitemapXML,
} from '../../../lib/sitemap-generator';

export async function GET(request: Request) {
    const { searchParams } = new URL(request.url);
    const action = searchParams.get('action');

    switch (action) {
        case 'validate':
            const validation = validateSitemapUrls();
            return NextResponse.json(validation);

        case 'stats':
            const stats = getSitemapStats();
            return NextResponse.json(stats);

        case 'xml':
            const xml = generateSitemapXML();
            return new NextResponse(xml, {
                headers: {
                    'Content-Type': 'application/xml',
                },
            });

        default:
            return NextResponse.json({
                message: 'Sitemap API',
                availableActions: ['validate', 'stats', 'xml'],
                usage: {
                    validate: '/api/sitemap?action=validate',
                    stats: '/api/sitemap?action=stats',
                    xml: '/api/sitemap?action=xml',
                },
            });
    }
}