const corsHeaders = {
  'Access-Control-Allow-Origin': '*',
  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
};

Deno.serve(async (req) => {
  if (req.method === 'OPTIONS') {
    return new Response(null, { headers: corsHeaders });
  }

  try {
    const { webhookUrl, message, product, profile } = await req.json();

    if (!webhookUrl) {
      throw new Error('Discord webhook URL is required');
    }

    const embed = {
      title: '💰 Price Alert Triggered!',
      description: message,
      color: 0x00ff00,
      fields: [
        {
          name: 'Product',
          value: product.name,
          inline: false
        },
        {
          name: 'Current Price',
          value: `${product.current_price} ${product.currency}`,
          inline: true
        },
        {
          name: 'Target Price',
          value: `${profile.target_price} ${product.currency}`,
          inline: true
        },
        {
          name: 'Store',
          value: product.store,
          inline: true
        },
        {
          name: 'Link',
          value: product.url,
          inline: false
        }
      ],
      timestamp: new Date().toISOString()
    };

    const response = await fetch(webhookUrl, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        content: `🎯 **${profile.name}** - Price target reached!`,
        embeds: [embed]
      })
    });

    if (!response.ok) {
      throw new Error(`Discord API error: ${response.status}`);
    }

    console.log('Discord notification sent successfully');

    return new Response(
      JSON.stringify({ success: true }),
      { headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
    );

  } catch (error) {
    console.error('Error sending Discord alert:', error);
    const errorMessage = error instanceof Error ? error.message : 'Unknown error occurred';
    return new Response(
      JSON.stringify({ error: errorMessage }),
      { 
        status: 500,
        headers: { ...corsHeaders, 'Content-Type': 'application/json' }
      }
    );
  }
});