<?php

namespace App\Lib\LDC;

use GuzzleHttp\Client;
use Illuminate\Contracts\Foundation\Application;
use Psr\Http\Message\ResponseInterface;

class MailjetSms
{
    /** @var Application $app */
    protected $app;

    /** @var array $config */
    protected $config = [];

    /**
     * MailjetSms
     *
     * @param \Illuminate\Contracts\Foundation\Application $app
     */
    public function __construct(Application $app)
    {
        $this->app = $app;
        $this->loadDefaultOptions();
    }

    /**
     * loadDefaultOptions
     *
     * @return \App\Lib\LDC\MailjetSms
     */
    protected function loadDefaultOptions(): \App\Lib\LDC\MailjetSms
    {
        $this->config = $this->app['config']->get('services.mailjet');
        return $this;
    }

    /**
     * buildHttpClient
     *
     * @return \GuzzleHttp\Client
     */
    protected function buildHttpClient(): \GuzzleHttp\Client
    {
        return new Client([
            'allow_redirects' => false,
            'connect_timeout' => 3,
            'verify' => false,
            'headers' => [
                'User-Agent' => 'LDCMailjetSms/1.0',
                'Accept' => 'application/json',
                'Content-Type' => 'application/json',
                'Authorization' => sprintf('Bearer %s', $this->config['sms_token']),
            ],
            'timeout' => 5,
        ]);
    }

    /**
     * send sms
     *
     * @param string      $message
     * @param string      $to
     * @param string|null $from
     * @return \Psr\Http\Message\ResponseInterface
     * @throws \GuzzleHttp\Exception\RequestException If Mailsms send service call failed.
     */
    public function send(string $message, string $to, ?string $from = null): ResponseInterface
    {
        $from   = $from ?? $this->config['sms_from'];
        $client = $this->buildHttpClient();

        try {
            $response = $client->post($this->config['sms_endpoint'], [
                'json' => [
                    'Text' => $message,
                    'From' => $from,
                    'To' => $to,
                ]
            ]);
        } catch (\GuzzleHttp\Exception\RequestException $e) {
            report($e);
            throw $e;
        }

        return $response;
    }
}