import os
import importlib

def get_all_proj_dir():
    proj_dirs = []
    # 1.Search proj from src
    from common import source_dir
    
    backend_dir = os.path.join(source_dir, "backend")
    # 检查路径是否存在
    if not os.path.exists(backend_dir):
        raise FileNotFoundError(f"指定路径不存在: {backend_dir}")
    
    # 检查路径是否有效
    if not os.path.isdir(backend_dir):
        raise NotADirectoryError(f"指定路径不是一个目录: {backend_dir}")
    
    for entry in os.listdir(backend_dir):
        if entry.startswith("proj_"):
            proj_dirs.append(entry)
            
    # 2.Search proj from appdata
    from common import get_user_appdata_path
    app_dir = get_user_appdata_path()
    usr_app_dir = os.path.join(app_dir, "onekeylog_diag")
    usr_plugin_dir = os.path.join(usr_app_dir, "plugin")
    
    # 检查路径是否存在
    if not os.path.exists(usr_plugin_dir):
        raise FileNotFoundError(f"指定路径不存在: {usr_plugin_dir}")
    
    # 检查路径是否有效
    if not os.path.isdir(usr_plugin_dir):
        raise NotADirectoryError(f"指定路径不是一个目录: {usr_plugin_dir}")
    
    for entry in os.listdir(usr_plugin_dir):
        if entry.startswith("proj_"):
            proj_dirs.append(entry)
            
    return proj_dirs
    
def get_all_proj_name():
    prefix_len = len("proj_")
    proj_dir = get_all_proj_dir()
    
    proj_name = [item[prefix_len:] for item in proj_dir]
    return proj_name

def dynamic_import_lib(pacakge_name):
    """
    动态拼接包名并导入模块
    
    参数:
        package_name : 包名
        
    返回:
        导入的模块对象,如果导入失败则返回None
    """
    
    package_path = "backend." + pacakge_name
    
    try:
        # 动态导入模块
        module = importlib.import_module(package_path)
        print(f"成功导入模块: {package_path}")
        return module
    except ImportError:
        print(f"无法导入模块: {package_path}")
        return None
    except Exception as e:
        print(f"导入模块时发生错误: {e}")
        return None

def do_proj_parse(key="app"):
    porj_package = "proj_" + key
    
    pHandlers = dynamic_import_lib(porj_package)
    if hasattr(pHandlers, "start_parse"):
        pHandlers.start_parse()