<?php

namespace app\flow\strategies;

use app\flow\config\VoiceTemplatesConfig;
use app\flow\exception\IllegalUsageException;
use app\flow\context\ProcessContext;
use app\flow\nodes\ProcessNodeInterface;
use app\utils\Logger;

/**
 * 语音生成策略
 * 根据配置生成语音播报内容
 */
class VoiceGenerationStrategy extends AbstractStrategy
{
    protected string $phase = 'after';

    protected VoiceTemplatesConfig $voiceTemplatesConfig;

    public function __construct(VoiceTemplatesConfig $config)
    {
        parent::__construct([]);
        $this->voiceTemplatesConfig = $config;
        Logger::debug("VoiceGenerationStrategy 初始化完成");
    }

    /**
     * 执行语音生成
     */
    protected function doExecute(ProcessContext $context, ProcessNodeInterface $node): ProcessContext
    {
        // 如果存在流程中自定义语音，就直接输出
        if (!empty($context->getVoice()->message)) {
            Logger::warn(
                "流程中存在自定义语音或存在多次设置语音，语音应该在 VoiceGenerationStrategy 策略中配置，否则不能拦截与自定义配置",
                new IllegalUsageException("In the existing process, there is custom voice, which should be configured in the VoiceGenerationStrategy strategy; otherwise, it cannot be intercepted and customized")
            );
            return $context->builder()->voiceMessage($context->getVoice()->message)->build();
        }

        // 如果已经有错误，生成错误语音
        // 否则生成正常流程语音
        $voice = !$context->isSuccess() ? $this->generateErrorVoice($context) : $this->generateNormalVoice($context, $node);


        // 应用语音模板
        foreach ($context->getVoice()->templateParams as $key => $val) {
            $replaceVal = match (true) {
                is_array($val) => implode(',', $val),
                is_bool($val) => $val ? 'true' : 'false',
                is_null($val) => '',
                default => (string) $val
            };
            $voice = str_replace('{' . $key . '}', $replaceVal, $voice);
        }
        Logger::debug("应用语音模板后的内容: {$voice}");

        return $context->builder()->voiceMessage($voice)->build();
    }

    /**
     * 生成正常流程语音
     */
    protected function generateNormalVoice(ProcessContext $context, ProcessNodeInterface $node): string
    {
        $stepCode = $node->getCode();
        $stepName = $node->getName();
        $processType = $context->getProcessType();

        // 根据流程类型选择模板
        $templateKey = $this->getTemplateKey($processType, $stepCode, $context);
        $templates = $this->voiceTemplatesConfig->getTemplates($templateKey);
        if (empty($templates)) {
            $templates = $this->voiceTemplatesConfig->normalWash;
        }

        // 优先使用自定义步骤语音（直接存储在对应模板key中）
        $voice = $templates[$stepCode] ?? $stepCode . '完成';

        // 添加提醒信息
        $remind = $this->getRemindMessage($context);
        if ($remind) {
            $voice .= $remind;
        }

        return $voice;
    }

    /**
     * 生成错误语音
     */
    protected function generateErrorVoice(ProcessContext $context): string
    {
        $errorMessage = $context->getVoice()->errorMessage;
        $errorTemplates = $this->voiceTemplatesConfig->voiceMessage;

        $errorMsg = $errorTemplates[$errorMessage->name] ?? $errorMessage->value;
        if (empty($errorMsg)) {
            $errorMsg = $context->getVoice()->message;
            Logger::debug("错误信息配置未命中，使用自定义语音: {$errorMsg}");
        } else {
            Logger::debug("错误信息配置命中: {$errorMsg}");
        }

        if (empty($errorMsg)) {
            Logger::error("配置文件与枚举信息中未找匹配到错误信息");
        }

        return $errorMsg ?: '刷卡错误';
    }

    /**
     * 流程类型到模板键的映射
     */
    protected const array PROCESS_TYPE_MAP = [
        '机洗' => 'machine_wash',
        '机洗（晨洗）' => 'machine_wash',
        '机洗（加强）' => 'machine_wash',
        '测漏' => 'leak_test',
        '存储' => 'storage',
    ];

    /**
     * 获取模板键
     */
    protected function getTemplateKey(string $processType, string $stepCode, ProcessContext $context): string
    {
        // 晨洗流程中的清洗/机洗步骤
        if ($context->getMorningWash()->needMorningWash) {
            return 'morning_wash';
        }

        // 从映射表中获取，默认返回 normal_wash
        return self::PROCESS_TYPE_MAP[$processType] ?? 'normal_wash';
    }

    /**
     * 获取提醒信息
     */
    protected function getRemindMessage(ProcessContext $context): string
    {
        $reminds = [];

        if ($context->isLeakTestRemindNeeded()) {
            $reminds[] = '，清洗开始前，请测漏';
        }

        if ($context->isStorageRemindNeeded()) {
            $reminds[] = '，未登记取出';
        }

        return implode('', $reminds);
    }

    /**
     * 判断策略是否适用
     */
    public function isApplicable(ProcessContext $context, ProcessNodeInterface $node): bool
    {
        return true;
    }

    /**
     * 获取策略名称
     */
    public function getName(): string
    {
        return '语音生成策略';
    }
}