<?php

namespace app\sms;

use app\sms\contracts\SmsDriverInterface;

class Sms
{
    protected $driver;
    /**
     * Sms constructor.
     * @param string|null $channel
     * @throws \Exception
     */
    public function __construct(?string $channel = null)
    {
        $channel = $channel ?: config('sms.default');
        $drivers = config('sms.channels');

        if (!isset($drivers[$channel])) {
            throw new \Exception("短信通道 [$channel] 未配置");
        }

        $class = $drivers[$channel]['driver'];
        $config = $drivers[$channel]['config'];

        if (!class_exists($class)) {
            throw new \Exception("短信驱动类 [$class] 不存在");
        }

        $this->driver = new $class($config);

        if (!($this->driver instanceof SmsDriverInterface)) {
            throw new \Exception("[$class] 必须实现 SmsDriverInterface 接口");
        }
    }

    public function send(string $mobile, string $templateId, array $data = []): array
    {
        return $this->driver->send($mobile, $templateId, $data);
    }
}