<?php

namespace tests\flow;

use app\flow\config\ProcessConfig;
use app\flow\context\ProcessContext;
use app\flow\ProcessEngine;
use app\flow\context\bean\EndoscopeInfo;
use app\flow\context\bean\OperatorInfo;
use app\flow\context\bean\ReaderInfo;
use app\utils\Logger;

/**
 * 虚拟流程处理器
 * 
 * 用于测试环境的刷卡流程模拟器。
 * 不依赖真实的 FlowProcessor，不连接数据库，不发送语音。
 * 支持完整的刷卡流程模拟和验证。
 */
class VirtualityFlowProcessor
{
    private ProcessEngine $engine;
    private array $environment;
    private string $envPath;
    
    /** @var array 当前操作员会话缓存 (readerId => operatorInfo) */
    private array $operatorSessions = [];
    
    /** @var ProcessContext[] 执行历史 */
    private array $history = [];
    
    /** @var array 当前内镜的流程状态 (endoscopeId => ProcessContext) */
    private array $endoscopeStates = [];

    /**
     * 构造函数
     * 
     * @param ProcessConfig|null $config 流程配置
     * @param string|null $envPath 环境配置文件路径
     */
    public function __construct(?ProcessConfig $config = null, ?string $envPath = null)
    {
        $this->envPath = $envPath ?? (__DIR__ . '/../resources/default_environment.json');
        $this->loadEnvironment();
        $this->engine = ProcessEngine::create($config ?? ProcessConfig::createStandard());
    }

    /**
     * 加载环境配置
     */
    private function loadEnvironment(): void
    {
        if (!file_exists($this->envPath)) {
            throw new \RuntimeException("环境配置文件不存在: {$this->envPath}");
        }
        
        $content = file_get_contents($this->envPath);
        $this->environment = json_decode($content, true);
        
        if (json_last_error() !== JSON_ERROR_NONE) {
            throw new \RuntimeException("环境配置文件解析失败: " . json_last_error_msg());
        }
    }

    // ==================== 静态工厂方法 ====================

    /**
     * 创建标准流程处理器
     */
    public static function create(?ProcessConfig $config = null, ?string $envPath = null): self
    {
        return new self($config, $envPath);
    }

    /**
     * 创建标准手工洗流程处理器
     */
    public static function createStandard(?string $envPath = null): self
    {
        return new self(ProcessConfig::createStandard(), $envPath);
    }

    /**
     * 创建无晨洗流程处理器
     */
    public static function createNoMorningWash(?string $envPath = null): self
    {
        return new self(ProcessConfig::createNoMorningWash(), $envPath);
    }

    /**
     * 创建机洗流程处理器
     */
    public static function createMachineWash(?string $envPath = null): self
    {
        return new self(ProcessConfig::createMachineWash(), $envPath);
    }

    // ==================== 刷卡模拟方法 ====================

    /**
     * 模拟刷人员卡
     * 
     * @param string $operatorName 操作员名称（环境配置中定义）
     * @param string $readerType 读卡器类型
     * @return ProcessContext
     */
    public function swipeOperatorCard(string $operatorName, string $readerType = '清洗'): ProcessContext
    {
        $operatorData = $this->environment['operators'][$operatorName] 
            ?? throw new \InvalidArgumentException("未找到操作员: {$operatorName}");
        $readerData = $this->environment['readers'][$readerType] 
            ?? throw new \InvalidArgumentException("未找到读卡器: {$readerType}");
        
        // 保存操作员会话
        $this->operatorSessions[$readerData['id']] = $operatorData;
        
        // 构建上下文
        $context = VirtualContextBuilder::create($this->envPath)
            ->operator($operatorName)
            ->reader($readerType)
            ->asOperatorCard()
            ->withEngineConfig($this->engine->getConfig())
            ->build();
        
        // 人员卡不走流程链，直接返回
        $result = $context->builder()
            ->voiceMessage('请刷内镜卡')
            ->build();
        
        $this->history[] = $result;
        return $result;
    }

    /**
     * 模拟刷内镜卡
     * 
     * @param string $endoscopeName 内镜名称（环境配置中定义）
     * @param string $readerType 读卡器类型
     * @return ProcessContext
     */
    public function swipeEndoscopeCard(string $endoscopeName, string $readerType): ProcessContext
    {
        $readerData = $this->environment['readers'][$readerType] 
            ?? throw new \InvalidArgumentException("未找到读卡器: {$readerType}");
        $endoscopeData = $this->environment['endoscopes'][$endoscopeName] 
            ?? throw new \InvalidArgumentException("未找到内镜: {$endoscopeName}");
        
        // 获取内镜当前状态
        $currentState = $this->endoscopeStates[$endoscopeData['id']] ?? null;
        
        // 构建上下文
        $builder = VirtualContextBuilder::create($this->envPath)
            ->endoscope($endoscopeName)
            ->reader($readerType)
            ->withEngineConfig($this->engine->getConfig());
        
        // 如果有操作员会话，添加操作员信息
        if (isset($this->operatorSessions[$readerData['id']])) {
            $opData = $this->operatorSessions[$readerData['id']];
            $builder->customOperator($opData['id'], $opData['name'], $opData['rfid']);
        }
        
        // 继承之前的流程状态
        if ($currentState !== null) {
            $builder->currentStep($currentState->getCurrentStep())
                    ->batchNo($currentState->getBatchNo())
                    ->processType($currentState->getProcessType());
            
            // 设置 previousAction：上一步骤名称就是当前状态的 currentStep
            if (!empty($currentState->getCurrentStep())) {
                $builder->previousAction($currentState->getCurrentStep(), $currentState->getBatchNo());
            }
        } else {
            // 新流程
            $builder->newProcess();
        }
        
        $context = $builder->build();
        
        // 未刷人员卡检查
        if (!$context->hasOperator() && !isset($this->operatorSessions[$readerData['id']])) {
            $result = $context->builder()
                ->error(\app\flow\enum\VoiceMessage::PLEASE_SWIPE_OPERATOR)
                ->build();
            $this->history[] = $result;
            return $result;
        }
        
        // 执行流程
        $result = $this->engine->execute($context);
        
        // 确保 previousAction 在结果中正确设置
        // 如果执行成功且有上一步骤信息，确保 previousAction 被保留
        if ($result->isSuccess() && $context->getPreviousAction() !== null && $result->getPreviousAction() === null) {
            $result = $result->builder()
                ->withPreviousAction($context->getPreviousAction())
                ->build();
        }
        
        // 保存状态
        $this->endoscopeStates[$endoscopeData['id']] = $result;
        $this->history[] = $result;
        
        return $result;
    }

    /**
     * 快捷方法：完整刷卡（先刷人员卡再刷内镜卡）
     * 
     * @param string $operatorName 操作员名称
     * @param string $endoscopeName 内镜名称
     * @param string $readerType 读卡器类型
     * @return ProcessContext 返回内镜卡刷卡结果
     */
    public function swipe(string $operatorName, string $endoscopeName, string $readerType): ProcessContext
    {
        Logger::info("测试刷卡：{$operatorName}, {$endoscopeName}, {$readerType}");
        // 刷人员卡
        $result = $this->swipeOperatorCard($operatorName, $readerType);
        // 当前语音
        Logger::info("当前语音：{$result->getFullVoice()}");
        
        // 刷内镜卡
        Logger::info("测试刷卡：{$endoscopeName}, {$readerType}");
        $result =  $this->swipeEndoscopeCard($endoscopeName, $readerType);
        Logger::info("当前流程：{}", [$result->getProcessType()]);
        Logger::info("当前批次号：{}", [$result->getBatchNo()]);
        Logger::info("当前步骤：{}", [$result->getCurrentStep()]);
        Logger::info("上一个步骤类型：{}", [$result->getPreviousAction()->action_type_name?? "null"]);
        Logger::info("上一个步骤：{}", [$result->getPreviousAction()->process_name??"null"]);
        Logger::info("时长：{}", [$result->getDuration()?? "null"]);
        Logger::info("当前语音：{$result->getFullVoice()}\n");
        return $result;
    }

    /**
     * 执行完整的手工洗流程
     * 
     * @param string $operatorName 操作员名称
     * @param string $endoscopeName 内镜名称
     * @return array<string, ProcessContext> 每个步骤的执行结果
     */
    public function executeFullManualWash(string $operatorName, string $endoscopeName): array
    {
        $steps = ['清洗', '漂洗', '消毒', '终末漂洗', '干燥'];
        $results = [];
        
        foreach ($steps as $step) {
            $results[$step] = $this->swipe($operatorName, $endoscopeName, $step);
        }
        
        return $results;
    }

    /**
     * 执行完整的机洗流程
     * 
     * @param string $operatorName 操作员名称
     * @param string $endoscopeName 内镜名称
     * @return ProcessContext
     */
    public function executeMachineWash(string $operatorName, string $endoscopeName): ProcessContext
    {
        return $this->swipe($operatorName, $endoscopeName, '机洗');
    }

    // ==================== 状态管理方法 ====================

    /**
     * 重置所有状态
     */
    public function reset(): self
    {
        $this->operatorSessions = [];
        $this->endoscopeStates = [];
        $this->history = [];
        return $this;
    }

    /**
     * 清除指定内镜的状态
     */
    public function clearEndoscopeState(string $endoscopeName): self
    {
        $endoscopeData = $this->environment['endoscopes'][$endoscopeName] ?? null;
        if ($endoscopeData !== null) {
            unset($this->endoscopeStates[$endoscopeData['id']]);
        }
        return $this;
    }

    /**
     * 清除指定读卡器的操作员会话
     */
    public function clearOperatorSession(string $readerType): self
    {
        $readerData = $this->environment['readers'][$readerType] ?? null;
        if ($readerData !== null) {
            unset($this->operatorSessions[$readerData['id']]);
        }
        return $this;
    }

    /**
     * 手动设置内镜状态
     */
    public function setEndoscopeState(string $endoscopeName, ProcessContext $context): self
    {
        $endoscopeData = $this->environment['endoscopes'][$endoscopeName] ?? null;
        if ($endoscopeData !== null) {
            $this->endoscopeStates[$endoscopeData['id']] = $context;
        }
        return $this;
    }

    // ==================== 查询方法 ====================

    /**
     * 获取执行历史
     */
    public function getHistory(): array
    {
        return $this->history;
    }

    /**
     * 获取最后一次执行结果
     */
    public function getLastResult(): ?ProcessContext
    {
        return end($this->history) ?: null;
    }

    /**
     * 获取内镜当前状态
     */
    public function getEndoscopeState(string $endoscopeName): ?ProcessContext
    {
        $endoscopeData = $this->environment['endoscopes'][$endoscopeName] ?? null;
        if ($endoscopeData === null) {
            return null;
        }
        return $this->endoscopeStates[$endoscopeData['id']] ?? null;
    }

    /**
     * 获取流程引擎
     */
    public function getEngine(): ProcessEngine
    {
        return $this->engine;
    }

    /**
     * 获取环境配置
     */
    public function getEnvironment(): array
    {
        return $this->environment;
    }

    /**
     * 创建上下文构建器
     */
    public function createContextBuilder(): VirtualContextBuilder
    {
        return VirtualContextBuilder::create($this->envPath)
            ->withEngineConfig($this->engine->getConfig());
    }

    // ==================== 断言辅助方法 ====================

    /**
     * 获取语音内容（用于断言）
     */
    public function getVoice(?ProcessContext $context = null): string
    {
        $ctx = $context ?? $this->getLastResult();
        return $ctx?->getFullVoice() ?? '';
    }

    /**
     * 检查是否成功
     */
    public function isSuccess(?ProcessContext $context = null): bool
    {
        $ctx = $context ?? $this->getLastResult();
        return $ctx?->isSuccess() ?? false;
    }

    /**
     * 获取当前步骤
     */
    public function getCurrentStep(?ProcessContext $context = null): string
    {
        $ctx = $context ?? $this->getLastResult();
        return $ctx?->getCurrentStep() ?? '';
    }
}