from typing import Optional
from aiohttp import ClientSession, ClientTimeout, FormData
import traceback
import logging
import random
import os
import magic

"""
Catbox Uploader (Async)
"""

catbox_api_url: str = "https://catbox.moe/user/api.php"
http_headers: dict[str, str] = {
        'accept': '*/*',
        'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.64 Safari/537.36 Edg/101.0.1210.53',
        'Accept-Language': 'en-US,en;q=0.9,it;q=0.8,es;q=0.7',
        'referer': 'https://www.google.com/',
        'cookie': 'DSID=AAO-7r4OSkS76zbHUkiOpnI0kk-X19BLDFF53G8gbnd21VZV2iehu-w_2v14cxvRvrkd_NjIdBWX7wUiQ66f-D8kOkTKD1BhLVlqrFAaqDP3LodRK2I0NfrObmhV9HsedGE7-mQeJpwJifSxdchqf524IMh9piBflGqP0Lg0_xjGmLKEQ0F4Na6THgC06VhtUG5infEdqMQ9otlJENe3PmOQTC_UeTH5DnENYwWC8KXs-M4fWmDADmG414V0_X0TfjrYu01nDH2Dcf3TIOFbRDb993g8nOCswLMi92LwjoqhYnFdf1jzgK0'
        }

class CatboxAsync:
    def __init__(self) -> None:
        self.catbox_api_url = catbox_api_url
        self.headers = http_headers
    
    def generateRandomFileName(self, fileExt: Optional[str] = None) -> str:
        """
        Generate random file name
        
        Args:
            fileExt (Optional[str]): File extension to use for naming
        Returns:
            str
        """
        if not fileExt:
            fileExt = 'png'
        return f"{random.getrandbits(32)}.{fileExt}"
    
    async def upload(self, file: str) -> Optional[str]:
        """
        Upload file to catbox
        
        Args:
            file (str): Path of file to be uploaded
        Returns:
            str
        """
        try:
            if not file:
                return None
            if not(os.path.exists(file)):
                logging.critical("Could not find %s", 
                                 file)
                return None
            
            fileExt: Optional[str] = None
            if file.find(".") > 0:
                fileExt = "".join(file.split(".")[-1:])
            
            with open(file, 'rb') as fileContents:
                post_data: FormData = FormData()
                post_data.add_field(name="reqtype",
                                    value="fileupload")
                post_data.add_field(name="userhash",
                                    value="")
                with magic.Magic(flags=magic.MAGIC_MIME) as m:
                    content_type = m.id_filename(file)
                    post_data.add_field(name="fileToUpload",
                                        value=fileContents, 
                                        filename=self.generateRandomFileName(fileExt),
                                        content_type=content_type
                )
                async with ClientSession() as session:
                    async with await session.post(self.catbox_api_url,
                                                  headers=self.headers,
                                                  data=post_data,
                                                  timeout=ClientTimeout(connect=10, sock_read=10)) as request:
                        request.raise_for_status()
                        return await request.text()
        except:
            traceback.print_exc()
            return None
        finally:
            try:
                fileContents.close()
            except:
                return None