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import sys, json, os, time, shutil

def list_dir(path):
    items = []
    try:
        for entry in os.scandir(path):
            stat = entry.stat()
            items.append({
                "name": entry.name,
                "type": "dir" if entry.is_dir() else "file",
                "size": stat.st_size if entry.is_file() else 0,
                "mtime": time.ctime(stat.st_mtime),
                "perms": oct(stat.st_mode)[-3:]
            })
    except Exception as e:
        return {"error": str(e)}
    return items

def read_file(path):
    try:
        with open(path, 'r', encoding='utf-8') as f:
            return f.read()
    except Exception as e:
        return {"error": str(e)}

def write_file(path, content):
    try:
        with open(path, 'w', encoding='utf-8') as f:
            f.write(content)
        return {"status": "ok"}
    except Exception as e:
        return {"error": str(e)}

def delete_item(path):
    try:
        if os.path.isfile(path):
            os.remove(path)
        elif os.path.isdir(path):
            shutil.rmtree(path)    # recursive delete, matches original PHP sigmaDeleteFolder
        else:
            return {"error": "Not a file or directory"}
        return {"status": "ok"}
    except Exception as e:
        return {"error": str(e)}

def rename_item(old, new):
    try:
        os.rename(old, new)
        return {"status": "ok"}
    except Exception as e:
        return {"error": str(e)}

if __name__ == "__main__":
    # args: action, path [, additional args]
    # For 'write', the file content is read from stdin.
    args = sys.argv
    if len(args) < 2:
        print(json.dumps({"error": "No action"}))
        sys.exit(1)

    action = args[1]
    path = args[2] if len(args) > 2 else "."

    result = {}
    if action == "list":
        result = list_dir(path)
    elif action == "read":
        result = read_file(path)
    elif action == "write":
        content = sys.stdin.read()
        result = write_file(path, content)
    elif action == "delete":
        result = delete_item(path)
    elif action == "rename":
        if len(args) < 4:
            result = {"error": "Missing new name"}
        else:
            new_path = args[3]
            result = rename_item(path, new_path)
    else:
        result = {"error": "Unknown action"}

    sys.stdout.write(json.dumps(result))