export default {
  async fetch(request, env, ctx) {
    // Handle CORS preflight
    if (request.method === 'OPTIONS') {
      return new Response(null, {
        headers: {
          'Access-Control-Allow-Origin': '*',
          'Access-Control-Allow-Methods': 'POST, OPTIONS',
          'Access-Control-Allow-Headers': 'Content-Type',
        },
      });
    }

    // Only allow POST requests
    if (request.method !== 'POST') {
      return new Response(JSON.stringify({ error: 'Method not allowed' }), {
        status: 405,
        headers: {
          'Content-Type': 'application/json',
          'Access-Control-Allow-Origin': '*',
        },
      });
    }

    try {
      const { postUrl, apiKey } = await request.json();

      if (!postUrl || !apiKey) {
        return new Response(
          JSON.stringify({ error: 'Missing postUrl or apiKey' }),
          {
            status: 400,
            headers: {
              'Content-Type': 'application/json',
              'Access-Control-Allow-Origin': '*',
            },
          }
        );
      }

      // Call RapidAPI LinkedIn Scraper
      const rapidApiUrl = `https://linkedin-data-api.p.rapidapi.com/get-post?url=${encodeURIComponent(postUrl)}`;
      
      const response = await fetch(rapidApiUrl, {
        method: 'GET',
        headers: {
          'X-RapidAPI-Key': apiKey,
          'X-RapidAPI-Host': 'linkedin-data-api.p.rapidapi.com'
        }
      });

      if (!response.ok) {
        const errorText = await response.text();
        return new Response(
          JSON.stringify({ 
            error: `RapidAPI Error: ${response.status}`,
            details: errorText 
          }),
          {
            status: response.status,
            headers: {
              'Content-Type': 'application/json',
              'Access-Control-Allow-Origin': '*',
            },
          }
        );
      }

      const data = await response.json();

      // Check if API call was successful
      if (!data.success) {
        return new Response(
          JSON.stringify({ 
            error: 'API returned unsuccessful response',
            details: data.message || 'Unknown error'
          }),
          {
            status: 400,
            headers: {
              'Content-Type': 'application/json',
              'Access-Control-Allow-Origin': '*',
            },
          }
        );
      }

      // Return the data
      return new Response(JSON.stringify(data), {
        status: 200,
        headers: {
          'Content-Type': 'application/json',
          'Access-Control-Allow-Origin': '*',
        },
      });

    } catch (error) {
      return new Response(
        JSON.stringify({ 
          error: 'Internal server error',
          message: error.message 
        }),
        {
          status: 500,
          headers: {
            'Content-Type': 'application/json',
            'Access-Control-Allow-Origin': '*',
          },
        }
      );
    }
  },
};