import os
import zipfile
import shutil

from ..updator import RepoZipUpdator
from astrbot.core.utils.io import remove_dir, on_error
from ..star.star import StarMetadata
from astrbot.core import logger

class PluginUpdator(RepoZipUpdator):
    def __init__(self, repo_mirror: str = "") -> None:
        super().__init__(repo_mirror)
        self.plugin_store_path = os.path.abspath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "../../../data/plugins"))
        
    def get_plugin_store_path(self) -> str:
        return self.plugin_store_path
    
    async def install(self, repo_url: str, proxy="") -> str:
        repo_name = self.format_repo_name(repo_url)
        plugin_path = os.path.join(self.plugin_store_path, repo_name)
        await self.download_from_repo_url(plugin_path, repo_url, proxy)
        self.unzip_file(plugin_path + ".zip", plugin_path)
        
        return plugin_path

    async def update(self, plugin: StarMetadata, proxy="") -> str:
        repo_url = plugin.repo
        
        if not repo_url:
            raise Exception(f"插件 {plugin.name} 没有指定仓库地址。")
        
        if proxy:
            proxy = proxy.removesuffix("/")
            repo_url = f"{proxy}/{repo_url}"
        
        plugin_path = os.path.join(self.plugin_store_path, plugin.root_dir_name)
            
        logger.info(f"正在更新插件，路径: {plugin_path}，仓库地址: {repo_url}")
        await self.download_from_repo_url(plugin_path, repo_url)
        
        try:
            remove_dir(plugin_path)
        except BaseException as e:
            logger.error(f"删除旧版本插件 {plugin_path} 文件夹失败: {str(e)}，使用覆盖安装。")
        
        self.unzip_file(plugin_path + ".zip", plugin_path)
        
        return plugin_path

    def unzip_file(self, zip_path: str, target_dir: str):
        os.makedirs(target_dir, exist_ok=True)
        update_dir = ""
        logger.info(f"解压文件: {zip_path}")
        with zipfile.ZipFile(zip_path, 'r') as z:
            update_dir = z.namelist()[0]
            z.extractall(target_dir)

        files = os.listdir(os.path.join(target_dir, update_dir))
        for f in files:
            if os.path.isdir(os.path.join(target_dir, update_dir, f)):
                if os.path.exists(os.path.join(target_dir, f)):
                    shutil.rmtree(os.path.join(target_dir, f), onerror=on_error)
            else:
                if os.path.exists(os.path.join(target_dir, f)):
                    os.remove(os.path.join(target_dir, f))
            shutil.move(os.path.join(target_dir, update_dir, f), target_dir)
        
        try:
            logger.info(f"删除临时文件: {zip_path} 和 {os.path.join(target_dir, update_dir)}")
            shutil.rmtree(os.path.join(target_dir, update_dir), onerror=on_error)
            os.remove(zip_path)
        except BaseException:
            logger.warning(f"删除更新文件失败，可以手动删除 {zip_path} 和 {os.path.join(target_dir, update_dir)}")