// supabase/functions/send-interview-email/index.ts
import { serve } from "https://deno.land/std@0.168.0/http/server.ts";
import { Resend } from "npm:resend";

const resend = new Resend(Deno.env.get("RESEND_API_KEY"));

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

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

  try {
    const { candidateName, candidateEmail, date, time, meetingLink, role } = await req.json();

    const { data, error } = await resend.emails.send({
      from: "Acme HR <onboarding@resend.dev>", // Change this to your verified domain if you have one
      to: [candidateEmail],
      subject: `Interview Invitation: ${role}`,
      html: `
        <div style="font-family: sans-serif; padding: 20px;">
          <h1>Hi ${candidateName},</h1>
          <p>We are pleased to invite you to a <strong>Technical Interview</strong> for the <strong>${role}</strong> position.</p>
          
          <div style="background: #f3f4f6; padding: 15px; border-radius: 8px; margin: 20px 0;">
            <p style="margin: 5px 0;"><strong>📅 Date:</strong> ${date}</p>
            <p style="margin: 5px 0;"><strong>⏰ Time:</strong> ${time}</p>
            <p style="margin: 5px 0;"><strong>🔗 Link:</strong> <a href="${meetingLink}">${meetingLink}</a></p>
          </div>

          <p>Please join 5 minutes early.</p>
          <p>Best,<br>Hiring Team</p>
        </div>
      `,
    });

    if (error) throw error;

    return new Response(JSON.stringify(data), {
      headers: { ...corsHeaders, "Content-Type": "application/json" },
      status: 200,
    });
  } catch (error) {
    return new Response(JSON.stringify({ error: error.message }), {
      headers: { ...corsHeaders, "Content-Type": "application/json" },
      status: 500,
    });
  }
});