import { serve } from 'https://deno.land/std@0.168.0/http/server.ts'
import { corsHeaders } from '../_shared/cors.ts'
import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'

serve(async (req) => {
  // Handle CORS
  if (req.method === 'OPTIONS') {
    return new Response('ok', { headers: corsHeaders })
  }

  try {
    const { phoneNumber, message } = await req.json()
    const twilioAccountSid = Deno.env.get('TWILIO_ACCOUNT_SID')
    const twilioAuthToken = Deno.env.get('TWILIO_AUTH_TOKEN')
    const twilioPhoneNumber = Deno.env.get('TWILIO_PHONE_NUMBER')

    if (!twilioAccountSid || !twilioAuthToken || !twilioPhoneNumber) {
      throw new Error('Missing Twilio credentials')
    }

    const twilioUrl = `https://api.twilio.com/2010-04/Accounts/${twilioAccountSid}/Messages.json`
    const response = await fetch(twilioUrl, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        Authorization: `Basic ${btoa(`${twilioAccountSid}:${twilioAuthToken}`)}`,
      },
      body: new URLSearchParams({
        To: phoneNumber,
        From: twilioPhoneNumber,
        Body: message,
      }),
    })

    const result = await response.json()
    return new Response(JSON.stringify(result), {
      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: 400,
    })
  }
})