from concurrent.futures import ThreadPoolExecutor
from my_modules.app.logger import logger

from convex import ConvexClient, ConvexError, ConvexExecutionError
from urllib.parse import urlparse
from datetime import datetime
from quart import url_for
from urllib.parse import urlparse, urlunparse
from io import BytesIO
import aiohttp, httpx, asyncio

class ConvexDB:
  default_namespace = 'nanoshare'
  service_protection = 'service/protection'
  service_auth = 'service/auth'

  def __init__(self, dsn:str, service:str):
    self.locked_printer = {}
    self.client = None
    self.dsn = dsn
    self.service = service

    self.executor = ThreadPoolExecutor(max_workers=1)
    self.loop = asyncio.get_event_loop()

  async def replace_url_host(self, url:str) -> str:
    dsn = urlparse(self.dsn.rstrip('/'))
    keep_content = urlparse(url)

    return urlunparse((
      dsn.scheme,
      dsn.netloc,
      keep_content.path,
      keep_content.params,
      keep_content.query,
      keep_content.fragment,
    ))

  # Connect Function
  async def connect(self):
    self.client = ConvexClient(self.dsn)

  async def close(self):
    if self.client:
      self.client = None

  def subscribe(self, name:str, args:dict):
    return self.client.subscribe(name=f'{self.default_namespace}/{name}', args=args)

  # Query Helper Function
  async def run_query_with_reconnection(self, function, *args:tuple, **kwargs):
    while True:
      try:
        query = args[0].replace('\n     ', '').replace('  ', '')
        if args[1:]:
          await logger.debug(f'{function.__name__} |{query}| {args[1:]}{kwargs}')
        else:
          await logger.debug(f'{function.__name__} |{query}| {kwargs}')

        return await self.loop.run_in_executor(
          self.executor, lambda: function(*args, **kwargs)
        )
      except Exception as e:
        await logger.error(f'Query Database: {e}, Function: {args}')
        break

  async def get_correct_storage_api_url(self, obj:dict, key:str):
    update_value = obj[key]
    if update_value:
      obj[key] = url_for('basic.convex_storage_proxy', file_id=urlparse(update_value).path.rsplit('/', 1)[-1])
    return obj

  # Basic Blueprint Function
  async def get_current_favicon(self):
    data = await self.run_query_with_reconnection(
      self.client.query,
      f'{self.default_namespace}/cache/favicon:get',
      args={}
    )
    return data

  async def set_new_favicon(self, favicon:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f'{self.default_namespace}/cache/favicon:set',
      args={ 'favicon': favicon }
    )
    return data

  # File Quary Functions
  async def get_file(self, file_id:str):
    data = await self.run_query_with_reconnection(
      self.client.query,
      f"{self.default_namespace}/files:getByFileId",
      args={ 'file_id': file_id }
    )
    return data

  async def get_files(self, user_id:str):
    data = await self.run_query_with_reconnection(
      self.client.query,
      f"{self.default_namespace}/files:getAllNotExpired",
      args={ 'user_id': user_id }
    )
    return [ {
      "file_id": x['file_id'],
      "file_name": x['file_name'],
      "file_size": x['file_size'],
      "note": x['note'],
      "expires_at": int(x['expires_at']) if x.get('expires_at', None) else '',
      "uploaded_at": int(x['uploaded_at']),
    } for x in data ]

  async def add_file(self, file_name:str, file_size:str, note:str, content_type:str, expires_at:datetime, storage_id:str, user_id:str):
    args = {
      'file_name': file_name, 'file_size': file_size, 'content_type': content_type,
      'note': note,
      'file_storage_id': storage_id, 'user_id': user_id
    }
    if expires_at:
      args['expires_at'] = expires_at.isoformat()

    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.default_namespace}/files:addNewFile",
      args=args,
    )
    return data

  async def update_file(self, file_id:str, file_name:str, note:str, expires_at:datetime, user_id:str):
    await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.default_namespace}/files:updateFile",
      args={ 'file_id': file_id, 'file_name': file_name, 'note': note, 'expires_at': expires_at.isoformat(), 'user_id': user_id }
    )

  async def delete_file(self, file_id:str, user_id:str):
    await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.default_namespace}/files:deleteFile",
      args={ 'file_id': file_id, 'user_id': user_id }
    )

  async def get_file_informations(self, file_id:str):
    pass

  # File Access Quary Functions
  async def add_file_access(self, file_id: str, ip_address:str, status:str, user_agent:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.default_namespace}/access:addNewAccess",
      args={ 'file_id': file_id, 'ip_address': ip_address, 'user_agent': str(user_agent), 'status': status }
    )
    return data

  async def get_all_access(self, user_id:str):
    data = await self.run_query_with_reconnection(
      self.client.query,
      """
      select files {
        file_id,
        file_name,
        note,
        accesses: {
          at,
          status,
          ip: {
            value
          },
          user_agent: {
            value
          }
        }
        order by .at desc
      }
      filter .user_id = <str>$user_id
      """,
      user_id=user_id
    )
    return sorted([{
      "file_id": file.file_id,
      "file_name": file.file_name,
      "file_note": file.note,
      "status": access.status,
      "ip": access.ip.value,
      "user_agent": access.user_agent.value,
      "accessed_at": access.at,
    } for file in data for access in file.accesses], key=lambda x: x["accessed_at"], reverse=True)

  async def get_file_access(self, file_id: str):
    data = await self.run_query_with_reconnection(
      self.client.query_single,
      """
      SELECT files {
        accesses: {
          status,
          ip: { value },
          user_agent: { value },
          at
        }
      }
      FILTER .file_id = <str>$file_id
      LIMIT 1
      """,
      file_id=file_id,
    )

    if data:
      return [{
        "status": str(access.status),
        "ip": access.ip.value if access.ip else None,
        "user_agent": access.user_agent.value if access.user_agent else None,
        "accessed_at": access.at,
      } for access in data.accesses]
    return None

  # Stream Data from DB File Storage
  async def stream_from_storage(self, convex_upload_url:str):
    convex_upload_url = await self.replace_url_host(convex_upload_url)

    async with aiohttp.ClientSession() as session:
      async with session.get(convex_upload_url) as resp:
        resp.raise_for_status()
        async for chunk in resp.content.iter_chunked(4096):
          yield chunk

  async def get_from_storage(self, convex_upload_url:str):
    convex_upload_url = await self.replace_url_host(convex_upload_url)

    async with httpx.AsyncClient() as client:
      resp = await client.get(convex_upload_url)
      resp.raise_for_status()
      return BytesIO(resp.read())

  async def send_to_storage(self, data:bytes, content_type:str):
    convex_upload_url = await self.run_query_with_reconnection(
      self.client.mutation,
      f"service/files:prepareUpload",
      args={}
    )

    convex_upload_url = await self.replace_url_host(convex_upload_url)

    async with httpx.AsyncClient() as client:
      resp = await client.post(convex_upload_url,
        headers={
          "Content-Type": content_type,
          "Content-Length": str(len(data)),
        },
        content=data,
      )
      resp.raise_for_status()
      return resp.json()["storageId"]

  # User
  async def upsert_user(self, user:dict):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f'{self.service_auth}/users:upsert',
      args={
        'sub': user['sub'],
        'email': user['email'],
        'name': user['name'],
        'username': user['preferred_username'],
        'groups': user['groups'],
      }
    )
    return data

  async def login(self, code:str):
    """
    NOT WORKING - AUTH Still Beta in Convex -> Currently do Manual
    """
    data = self.client.action('auth:signIn', args={'provider': 'authentik', 'params': {'code': code}})
    print(data)

  # Blocked Paths Functions
  async def set_blocked_paths(self, path:str, subpath:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_protection}/blockedPaths:create",
      args={ 'path': path, 'subpath': subpath }
    )
    return data

  async def get_blocked_paths(self) -> set[str]:
    data = await self.run_query_with_reconnection(
      self.client.query,
      f"{self.service_protection}/blockedPaths:getAll",
      args={}
    )
    return data

  async def is_path_blocked(self, path:str) -> bool:
    data = await self.run_query_with_reconnection(
      self.client.query,
      f"{self.service_protection}/blockedPaths:isBlocked",
      args={ 'path': path }
    )
    return data

  # Blocked IP Address Functions
  async def set_ip_address_to_blocklist(self, ip_address:str, method:str, path:str, blocked:bool, accessed:int, last_access_at:datetime):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_protection}/blockedIpAdresses:create",
      args={ 'ip': ip_address, 'method': method, 'path': path, 'blocked': blocked, 'accessed': accessed, 'last_access_at': last_access_at.isoformat() }
    )
    return data

  async def increment_blocked_ip_address_access(self, ip_address:str, method:str, path:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_protection}/blockedIpAdresses:increment",
      args={ 'ip': ip_address, 'method': method, 'path': path }
    )
    if data == 1:
      await logger.info(f'Add New IP Address to Block List {ip_address}, {method}, {path}')

  async def is_ip_address_whitelisted_or_blocked(self, ip_address:str) -> bool:
    data = await self.run_query_with_reconnection(
      self.client.query,
      f"{self.service_protection}/blockedIpAdresses:isWhitelistedOrBlocked",
      args={ 'ip': ip_address }
    )
    return data

  # Token Functions
  async def get_tokens(self, user_id:str):
    data = await self.run_query_with_reconnection(
      self.client.query,
      f"{self.service_auth}/jwt:getRefreshTokenByUserAndService",
      args={ 'service': self.service, 'user_id': user_id }
    )
    return data

  async def add_refresh_token(self, token_name:str, user_id:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_auth}/jwt:createRefreshToken",
      args={ 'token_name': token_name, 'service': self.service, 'user_id': user_id }
    )
    return data

  async def update_refresh_token_name(self, token_name:str, token_id:str, user_id:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_auth}/jwt:updateRefreshToken",
      args={ 'token_id': token_id, 'token_name': token_name, 'service': self.service, 'user_id': user_id }
    )
    return data

  async def remove_refresh_token(self, token_id:str, user_id:str):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_auth}/jwt:deleteRefreshToken",
      args={ 'token_id': token_id, 'service': self.service, 'user_id': user_id }
    )
    return data

  async def generate_new_access_token(self, refresh_token:str):
    data = await self.run_query_with_reconnection(
      self.client.action,
      f"{self.service_auth}/jwt:exchangeRefreshForAccess",
      args={ 'refresh_token': refresh_token, 'service': self.service }
    )

    if data.get('new_token', None):
      return {
        "access_token": data['new_token']['access_token'],
        "token_type": data['new_token']['token_type'],
        "expires_in": int(data['new_token']['expires_in']),
        "created_at": int(data['new_token']['created_at']) / 1000,
        "expires_at": int(data['new_token']['expires_at']) / 1000,
      }, data['refresh_id']
    return data, None

  async def decode_access_token_payload(self, access_token:str):
    data = await self.run_query_with_reconnection(
      self.client.action,
      f"{self.service_auth}/jwt:decodeAccessToken",
      args={ 'access_token': access_token, 'service': self.service }
    )

    if data.get('payload', None):
      return data.get('payload')
    return data

  # Error Page Access
  async def set_page_not_found_error(self, path:str, status:int, accessed:int, last_access_at:datetime):
    data = await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_protection}/badPageAccess:create",
      args={ 'path': path, 'status': status, 'accessed': accessed, 'last_access_at': last_access_at.isoformat() }
    )
    return data

  async def increment_page_not_found_error(self, path:str, status:int):
    await self.run_query_with_reconnection(
      self.client.mutation,
      f"{self.service_protection}/badPageAccess:increment",
      args={ 'path': path, 'status': status }
    )