<?php

namespace App\Http\Controllers\Api;

use App\Services\EmailService;
use Symfony\Component\HttpFoundation\Response;

class SendSMSController extends BaseApiController
{
    protected array $carrierGateways = [
        'att'        => ['sms' => '@txt.att.net', 'mms' => '@mms.att.net'],
        'verizon'    => ['sms' => '@vtext.com', 'mms' => '@vzwpix.com'],
        'tmobile'    => ['sms' => '@tmomail.net', 'mms' => '@tmomail.net'],
        'sprint'     => ['sms' => '@messaging.sprintpcs.com', 'mms' => '@pm.sprint.com'],
        'boost'      => ['sms' => '@sms.myboostmobile.com', 'mms' => '@myboostmobile.com'],
        'cricket'    => ['sms' => '@sms.cricketwireless.net', 'mms' => '@mms.cricketwireless.net'],
        'uscellular' => ['sms' => '@email.uscc.net', 'mms' => '@mms.uscc.net'],
        'googlefi'   => ['sms' => '@msg.fi.google.com', 'mms' => '@msg.fi.google.com'],
        'virgin'     => ['sms' => '@vmobl.com', 'mms' => '@vmpix.com'],
        'metro'      => ['sms' => '@mymetropcs.com', 'mms' => '@mymetropcs.com'],
    ];

    public function send()
    {
        $data = $this->payloadData();
        if (empty($data)) {
            return $this->respondError('Invalid request data', Response::HTTP_BAD_REQUEST);
        }

        $rules = [
            'phone'   => 'required|regex_match[/^\\d{10}$/]',
            'message' => 'required|max_length[160]',
            'carrier' => 'required|in_list[att,verizon,tmobile,sprint,boost,cricket,uscellular,googlefi,virgin,metro]',
        ];

        $errors = $this->validateRequest($data, $rules);
        if (!empty($errors)) {
            return $this->respondValidationError($errors);
        }

        $phone   = preg_replace('/[^0-9]/', '', $data['phone']);
        $message = $data['message'];
        $carrier = strtolower($data['carrier']);
        $type    = $data['type'] ?? 'sms';

        if (!isset($this->carrierGateways[$carrier])) {
            return $this->respondError('Invalid carrier', Response::HTTP_BAD_REQUEST);
        }

        $gateway = $this->carrierGateways[$carrier][$type] ?? $this->carrierGateways[$carrier]['sms'];
        $recipient = $phone . $gateway;

        try {
            /** @var EmailService $mailer */
            $mailer = app(EmailService::class);
            $mailer->setTo($recipient);
            $mailer->setFrom(env('MAIL_FROM_ADDRESS', 'no-reply@alrahmaisgl.org'), env('MAIL_FROM_NAME', 'Alrahma Team'));
            $mailer->setSubject('');
            $mailer->setMessage($message);

            if (!$mailer->send()) {
                return $this->respondError('Failed to send SMS', Response::HTTP_INTERNAL_SERVER_ERROR);
            }

            return $this->success([
                'phone'   => $phone,
                'carrier' => $carrier,
                'type'    => $type,
                'sent'    => true,
            ], 'SMS sent successfully');
        } catch (\Throwable $e) {
            log_message('error', 'SMS send error: ' . $e->getMessage());
            return $this->respondError('Failed to send SMS', Response::HTTP_INTERNAL_SERVER_ERROR);
        }
    }

    public function carriers()
    {
        $carriers = [];
        foreach ($this->carrierGateways as $key => $gateways) {
            $carriers[] = [
                'id'          => $key,
                'name'        => ucfirst(str_replace(['us', 'google'], ['US ', 'Google '], $key)),
                'sms_gateway' => $gateways['sms'],
                'mms_gateway' => $gateways['mms'],
            ];
        }

        return $this->success($carriers, 'Carriers retrieved successfully');
    }
}