<?php

namespace app\flow\config;

/**
 * 流程步骤配置类
 * 描述责任链中的单个节点
 */
class StepConfig extends AbstractConfig
{
    /**
     * 步骤标识码（如 '清洗'、'漂洗'）
     */
    public string $code {
        get => $this->code;
    }

    /**
     * 节点类名（不含命名空间）
     */
    public string $class {
        get => $this->class;
    }

    /**
     * 是否启用
     */
    public bool $enabled {
        get => $this->enabled;
        set => $this->enabled = $value;
    }

    /**
     * 扩展字段（用于原始/自定义字段透传）
     */
    public array $expand {
        get => $this->expand;
    }

    /**
     * @var array 需要上一个节点
     */
    public array $required = [];

    public function __construct(
        string $code,
        string $class,
        bool   $enabled = true,
        array  $required = [],
        array  $expand = []
    )
    {
        $this->code = $code;
        $this->class = $class;
        $this->enabled = $enabled;
        $this->required = $required;
        $this->expand = $expand;
    }

    public function toArray(): array
    {
        return array_merge([
            'code' => $this->code,
            'class' => $this->class,
            'enabled' => $this->enabled,
            'required' => $this->required,
        ], $this->expand);
    }
}