<?php

namespace App\Service\Message;

use App\Service\Message\Channel\EmailChannel;
use App\Service\Message\Channel\WebsocketChannel;
use App\Service\Message\Exception\ChannelNotFoundException;
use App\Service\Message\Interface\ChannelInterface;
use Hyperf\Di\Container;

class ChannelFactory
{
    protected Container $container;

    /**
     * 渠道映射表（可配置）
     */
    protected array $channels = [
        'email'     => EmailChannel::class,
        'websocket' => WebsocketChannel::class,
    ];

    public function __construct(Container $container)
    {
        $this->container = $container;
    }

    /**
     * 获取渠道实例
     */
    public function get(string $name): ChannelInterface
    {
        if (!isset($this->channels[$name])) {
            throw new ChannelNotFoundException("Channel [$name] not found");
        }
        return $this->container->get($this->channels[$name]);
    }

    /**
     * 获取所有可用渠道
     */
    public function all(): array
    {
        $list = [];
        foreach ($this->channels as $class) {
            $list[] = $this->container->get($class);
        }
        return $list;
    }
}