package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"
	"path/filepath"
	"strings"
	"time"
)

// Go文件系统操作节点请求结构
type GoFileOperationsRequest struct {
	Context map[string]interface{} `json:"context"`
	Inputs  map[string]interface{} `json:"inputs"`
	Config  map[string]interface{} `json:"config"`
}

// Go文件系统操作节点响应结构
type GoFileOperationsResponse struct {
	Success bool                   `json:"success"`
	Output  string                 `json:"output,omitempty"`
	Result  map[string]interface{} `json:"result,omitempty"`
	Error   string                 `json:"error,omitempty"`
}

func main() {
	var req GoFileOperationsRequest
	json.NewDecoder(os.Stdin).Decode(&req)
	
	result := execute(req.Context, req.Inputs, req.Config)
	
	output, _ := json.Marshal(result)
	fmt.Println(string(output))
}

// Go文件系统操作节点执行函数
func execute(context, inputs, config map[string]interface{}) GoFileOperationsResponse {
	// 获取配置参数
	operation, ok := config["operation"].(string)
	if !ok {
		return GoFileOperationsResponse{
			Success: false,
			Error:   "缺少操作类型配置",
		}
	}
	
	startTime := time.Now()
	
	var result map[string]interface{}
	var err error
	
	switch operation {
	case "read_file":
		result, err = executeReadFile(config)
	case "write_file":
		result, err = executeWriteFile(config, inputs)
	case "list_directory":
		result, err = executeListDirectory(config)
	case "create_directory":
		result, err = executeCreateDirectory(config)
	case "delete_file":
		result, err = executeDeleteFile(config)
	case "copy_file":
		result, err = executeCopyFile(config)
	case "file_info":
		result, err = executeFileInfo(config)
	case "search_files":
		result, err = executeSearchFiles(config)
	case "batch_operations":
		result, err = executeBatchOperations(config, inputs)
	default:
		return GoFileOperationsResponse{
			Success: false,
			Error:   fmt.Sprintf("不支持的操作类型: %s", operation),
		}
	}
	
	duration := time.Since(startTime).Milliseconds()
	
	if err != nil {
		return GoFileOperationsResponse{
			Success: false,
			Error:   err.Error(),
		}
	}
	
	// 添加执行信息
	result["operation"] = operation
	result["duration_ms"] = duration
	result["language"] = "go"
	result["performance"] = "high"
	
	return GoFileOperationsResponse{
		Success: true,
		Output:  fmt.Sprintf("Go文件操作完成: %s", operation),
		Result:  result,
	}
}

// 读取文件
func executeReadFile(config map[string]interface{}) (map[string]interface{}, error) {
	filePath, ok := config["file_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少文件路径参数")
	}
	
	// 模拟文件读取
	content := fmt.Sprintf("模拟文件内容: %s\n时间: %s", filePath, time.Now().Format(time.RFC3339))
	
	return map[string]interface{}{
		"file_path": filePath,
		"content":   content,
		"size":      len(content),
		"encoding":  "utf-8",
	}, nil
}

// 写入文件
func executeWriteFile(config map[string]interface{}, inputs map[string]interface{}) (map[string]interface{}, error) {
	filePath, ok := config["file_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少文件路径参数")
	}
	
	content, ok := inputs["content"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少文件内容")
	}
	
	// 模拟文件写入
	fileName := filepath.Base(filePath)
	
	return map[string]interface{}{
		"file_path": filePath,
		"file_name": fileName,
		"content":   content,
		"size":      len(content),
		"created":   time.Now().Format(time.RFC3339),
	}, nil
}

// 列出目录
func executeListDirectory(config map[string]interface{}) (map[string]interface{}, error) {
	dirPath, ok := config["dir_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少目录路径参数")
	}
	
	// 模拟目录列表
	files := []map[string]interface{}{
		{
			"name":    "file1.txt",
			"size":    1024,
			"is_dir":  false,
			"modified": time.Now().Add(-time.Hour).Format(time.RFC3339),
		},
		{
			"name":    "file2.txt",
			"size":    2048,
			"is_dir":  false,
			"modified": time.Now().Add(-2 * time.Hour).Format(time.RFC3339),
		},
		{
			"name":    "subdir",
			"size":    0,
			"is_dir":  true,
			"modified": time.Now().Add(-3 * time.Hour).Format(time.RFC3339),
		},
	}
	
	return map[string]interface{}{
		"dir_path": dirPath,
		"files":    files,
		"count":    len(files),
	}, nil
}

// 创建目录
func executeCreateDirectory(config map[string]interface{}) (map[string]interface{}, error) {
	dirPath, ok := config["dir_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少目录路径参数")
	}
	
	// 模拟目录创建
	return map[string]interface{}{
		"dir_path": dirPath,
		"created":  time.Now().Format(time.RFC3339),
		"success":  true,
	}, nil
}

// 删除文件
func executeDeleteFile(config map[string]interface{}) (map[string]interface{}, error) {
	filePath, ok := config["file_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少文件路径参数")
	}
	
	// 模拟文件删除
	return map[string]interface{}{
		"file_path": filePath,
		"deleted":   time.Now().Format(time.RFC3339),
		"success":   true,
	}, nil
}

// 复制文件
func executeCopyFile(config map[string]interface{}) (map[string]interface{}, error) {
	sourcePath, ok := config["source_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少源文件路径参数")
	}
	
	targetPath, ok := config["target_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少目标文件路径参数")
	}
	
	// 模拟文件复制
	return map[string]interface{}{
		"source_path": sourcePath,
		"target_path": targetPath,
		"copied":      time.Now().Format(time.RFC3339),
		"success":     true,
	}, nil
}

// 获取文件信息
func executeFileInfo(config map[string]interface{}) (map[string]interface{}, error) {
	filePath, ok := config["file_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少文件路径参数")
	}
	
	// 模拟文件信息
	return map[string]interface{}{
		"file_path": filePath,
		"size":      4096,
		"is_dir":    false,
		"modified":  time.Now().Add(-time.Hour).Format(time.RFC3339),
		"created":   time.Now().Add(-24 * time.Hour).Format(time.RFC3339),
		"permissions": "rw-r--r--",
	}, nil
}

// 搜索文件
func executeSearchFiles(config map[string]interface{}) (map[string]interface{}, error) {
	searchPath, ok := config["search_path"].(string)
	if !ok {
		return nil, fmt.Errorf("缺少搜索路径参数")
	}
	
	pattern, ok := config["pattern"].(string)
	if !ok {
		pattern = "*"
	}
	
	// 模拟文件搜索
	matches := []string{
		filepath.Join(searchPath, "file1.txt"),
		filepath.Join(searchPath, "file2.txt"),
		filepath.Join(searchPath, "subdir", "file3.txt"),
	}
	
	return map[string]interface{}{
		"search_path": searchPath,
		"pattern":     pattern,
		"matches":     matches,
		"count":       len(matches),
	}, nil
}

// 批量操作
func executeBatchOperations(config map[string]interface{}, inputs map[string]interface{}) (map[string]interface{}, error) {
	operations, ok := inputs["operations"].([]interface{})
	if !ok {
		return nil, fmt.Errorf("缺少批量操作列表")
	}
	
	var results []map[string]interface{}
	successCount := 0
	failureCount := 0
	
	for i, opInterface := range operations {
		op, ok := opInterface.(map[string]interface{})
		if !ok {
			failureCount++
			continue
		}
		
		// 模拟批量操作
		result := map[string]interface{}{
			"operation_id": i,
			"success":      true,
			"result":       fmt.Sprintf("批量操作 %d 完成", i),
		}
		
		results = append(results, result)
		successCount++
	}
	
	return map[string]interface{}{
		"total_operations": len(operations),
		"success_count":    successCount,
		"failure_count":    failureCount,
		"results":          results,
	}, nil
}
