from flask import Blueprint, request, jsonify
from core.bll import bllengine
from flask_cors import cross_origin
from flask_jwt_extended import create_access_token, get_jwt, jwt_required
from reqhandlers.blocklist import BLOCKLIST
import datetime
from datetime import timedelta
import uuid

users = Blueprint('users', __name__)


@users.route('/projects/reqtest')
def retest():
    return "success"

 # I Register User

@users.route('/register', methods=['POST'])
@cross_origin()
@jwt_required(optional=True) 
def register():
    uuid_number=uuid_number=uuid.uuid4().hex
    print("uuid number",uuid_number)
    print(uuid_number)
    req = request.json
    print("values for insert",req, uuid_number)
    req['requestdata']['id']=uuid_number
    resp=bllengine.performRegistration(req)
    return jsonify(resp)

# II Login User

@users.route('/login', methods=['POST'])
@cross_origin()
@jwt_required(optional=True)  
def login():
    req=request.json
    resp=bllengine.performLoginActivity(req)
    if 'user_details' in resp:
        try:
            # expires=datetime.datetime.utcnow() + datetime.timedelta(days=1)
            expires=datetime.timedelta(days=1)
            print(expires)
            token=create_access_token(identity=resp['user_details']['username'],expires_delta=expires)
            print("token generated successfully",token)
            resp['jwt_token']=token
            return jsonify({"responseid": req['requestid'], "responsefor": "User Login", "responsesetto": "UI", "response": resp})
        except:
            return jsonify({"responseid": req['requestid'], "responsefor": "User Login", "responsesetto": "UI", "response": "Error Ocuured"})
    else:
        return jsonify({"responseid": req['requestid'], "responsefor": "User Login", "responsesetto": "UI", "response": resp})

# III Logout User

@users.route('/logout', methods=['POST'])
@cross_origin()
@jwt_required()   
def logout():
    req=request.json
    resp={}
    if isinstance(req, dict):
        print(get_jwt())
        jti=get_jwt()['jti']
        if (jti not in BLOCKLIST):
            BLOCKLIST.add(jti)
            print(BLOCKLIST)
            resp={"responseid": req['requestid'], "responsefor": "User Logout", "responsesetto": "UI", "response": {"message": "User Loggedout Successfully"}}
        else:
            resp={"responseid": req['requestid'], "responsefor": "User Logout", "responsesetto": "UI", "response": {"message": "User has been already loggedout or else not yet logged in"}}
    else:
        resp={"responseid": req['requestid'], "responsefor": "User Logout", "responsesetto": "UI", "response": {"message": "Error Encountered"}}
    return jsonify(resp)