<?php

namespace app\flow\nodes;

use app\flow\enum\DbOperationType;
use app\flow\context\ProcessContext;
use app\flow\enum\VoiceMessage;
use app\flow\context\bean\CanHandleResult;

/**
 * 结束节点
 * 处理流程结束步骤
 */
class EndNode extends AbstractProcessNode
{
    /**
     * 获取节点名称
     */
    public static function getName(): string
    {
        return '结束';
    }

    /**
     * 获取节点编码
     */
    public function getCode(): string
    {
        return '结束';
    }

    /**
     * 判断当前节点是否能处理该步骤
     */
    public function canHandle(ProcessContext $context): CanHandleResult
    {
        // 如果内镜未取出
        if ($context->getStorage()->isInStorage) {
            return CanHandleResult::cannotHandle(VoiceMessage::PLEASE_SWIPE_STORAGE_OUT);
        }

        if (!$this->isMatchReaderType($context)) {
            if ($context->getCurrentStep() === DryNode::getName() || $context->getCurrentStep() === FinalRinseNode::getName()) {
                return CanHandleResult::cannotHandle(VoiceMessage::PLEASE_SWIPE_END);
            }
            return CanHandleResult::cannotHandle();
        }

        // 上一个步骤必须是干燥、终末漂洗或机洗
        if (!$this->isRequiredNode($context->getCurrentStep(), ['干燥', '终末漂洗', '机洗'])) {
            if ($context->getCurrentStep() === FinalRinseNode::getName()) {
                return CanHandleResult::cannotHandle(VoiceMessage::PLEASE_SWIPE_WASH);
            }
            return CanHandleResult::cannotHandle();
        }

        return CanHandleResult::canHandle();
    }

    /**
     * 具体处理逻辑
     */
    protected function doHandle(ProcessContext $context): ProcessContext
    {
        return $context->builder()
            ->withCurrentStep('结束')
            ->needDatabaseOperation()
            ->dbOperation(DbOperationType::INSERT)
            ->needWebSocketNotify()
            ->build();
    }
}