<?php

namespace Alexr\Sms\Providers;

use Alexr\Settings\EmailConfig;
use Twilio\Rest\Client;

class TwilioProvider implements SmsProviderInterface
{
	protected $config;
	protected $debug_log = '';

	public function __construct(EmailConfig $config)
	{
		$this->config = $config;
	}

	public function send(string $to, string $message): array
	{
		$this->debug_log .= "Attempting to send via Twilio\n";

		if (!$this->isConfigured()) {
			return [
				'success' => false,
				'error' => 'Twilio configuration is incomplete',
				'debug_log' => $this->debug_log
			];
		}

		if (!defined('ALEXR_PRO_PLUGIN_DIR')) {
			return [
				'success' => false,
				'error' => 'PRO plugin is required for SMS functionality',
				'debug_log' => $this->debug_log
			];
		}

		// Load Twilio SDK
		require_once ALEXR_PRO_PLUGIN_DIR . 'vendors/twilio/vendor/autoload.php';

		try {
			$client = new Client(
				$this->config->twilio_sid,
				$this->config->twilio_token
			);

			$result = $client->messages->create(
				$to,
				[
					'from' => $this->config->twilio_phone,
					'body' => $message
				]
			);

			$this->debug_log .= "Twilio message SID: " . $result->sid . "\n";

			return [
				'success' => true,
				'result' => [
					'provider' => 'twilio',
					'message_id' => $result->sid,
					'status' => $result->status
				],
				'debug_log' => $this->debug_log
			];
		} catch (\Exception $e) {
			$this->debug_log .= "Twilio error: " . $e->getMessage() . "\n";

			return [
				'success' => false,
				'error' => 'Twilio sending failed: ' . $e->getMessage(),
				'debug_log' => $this->debug_log
			];
		}
	}

	public function isConfigured(): bool
	{
		$twilio_sid = $this->config->twilio_sid;
		$twilio_token = $this->config->twilio_token;
		$twilio_phone = $this->config->twilio_phone;

		return !empty($twilio_sid)
		       && !empty($twilio_token)
		       && !empty($twilio_phone);
	}

	public function getDebugLog(): string
	{
		return $this->debug_log;
	}
}