import time
import uuid
import asyncio
import socketio
import datetime
import json
import base64
from loguru import logger
from socketio.exceptions import ConnectionError, TimeoutError

class PyGPT:
    def __init__(self, session_token, bypass_node='https://gpt.pawan.krd', db = None):
        self.ready = False
        self.socket = socketio.AsyncClient()
        self.socket.on('connect', self.on_connect)
        self.socket.on('disconnect', self.on_disconnect)
        self.session_token = session_token
        self.auth = None
        self.expires = datetime.datetime.now()
        self.pause_token_checks = False
        self.bypass_node = bypass_node
        self.db = db

    async def connect(self, retry=0):
        if retry<=3:
            try:          #python&version=1.0.2&versionCode=102   nodejs&version=1.0.5&versionCode=105
                await self.socket.connect(f'{self.bypass_node}/?client=python&version=1.0.2&versionCode=102')
            except ConnectionError as e:
                time.sleep(3)
                print(f"retry {retry} for connection!")
                await self.connect(retry+1)
        else:
            raise ConnectionError 

    async def disconnect(self):
        await self.socket.disconnect()

    def on_connect(self):
        logger.info('Connected to server')
        asyncio.create_task(self.check_tokens())

    def on_disconnect(self):
        logger.info('Disconnected from server')
        self.ready = False

    async def check_tokens(self):
        while True:
            if self.pause_token_checks:
                await asyncio.sleep(0.5)
                continue
            self.pause_token_checks = True
            now = datetime.datetime.now()
            offset = datetime.timedelta(minutes=2)
            if self.expires < (now - offset) or not self.auth:
                await self.get_tokens()
            self.pause_token_checks = False
            await asyncio.sleep(0.5)

    async def wait_for_ready(self):
        while not self.ready:
            await asyncio.sleep(0.025)
        print('Ready!!')

    async def ask(self, query_data):
        
        ask_data = {
            'prompt': query_data['message'],
            'parentId': str(query_data.get('parentId', uuid.uuid4())),
            'conversationId': str(query_data.get('conversationId', None)),
            'auth': self.auth
        }
#         logger.debug(f"pogpt query_data: prompt-{ask_data['prompt']}, parentId-{ask_data['parentId']}, conversationId-{ask_data['conversationId']}")
        logger.debug(f"pogpt query_data: prompt-{ask_data}")
            
        data = await self.socket.call('askQuestion', ask_data, timeout=150)

        if 'error' in data:
            print(f'Error: {data}')
            return {'status': 404, 'reply': data["error"]}
        try:
            query_data['parentId'] = data['messageId']
            query_data['conversationId'] = data['conversationId']
            query_data['reply'] = data['answer']
            query_data['status'] = 200
            return query_data
        except Exception as e:
            print(f'Error noerror in data: {data}')
            return {'status': 404, 'reply': str(data)}
        
    def validate_token(self, token):
        if not token:
            return False
        parsed = json.loads(base64.b64decode(f'{token.split(".")[1]}==').decode())
        print("expire time:", datetime.datetime.fromtimestamp(parsed['exp']))
        return datetime.datetime.now() <= datetime.datetime.fromtimestamp(parsed['exp'])

    async def get_tokens(self):
        await asyncio.sleep(1)
        data = await self.socket.call('getSession', self.session_token, timeout= 60)
        
        if 'error' in data:
            print(f'Error getting session: {data["error"]}')
        else:
            self.auth = data['auth']
            self.expires = datetime.datetime.strptime(data['expires'], '%Y-%m-%dT%H:%M:%S.%fZ')
            self.session_token = data['sessionToken']
            self.ready = True