from flask import Flask, request, jsonify
from flask_admin.contrib.mongoengine import ModelView
from flask_jwt_extended import JWTManager, create_access_token
from mongoengine import connect
from werkzeug.security import check_password_hash ,generate_password_hash

from models.Account import Account
from models.Group import Group, PaymentGroup
from models.Payment import Payments
from os import environ, path
from dotenv import load_dotenv

from internal_lib.AuthMethods import AuthJWT
from models.Group import Group
from models.Union import Union
from models.User import User
from restapi import MongoApi
from flask_admin import Admin

"""
Load .env file and get variables
"""

base_path = path.abspath(path.dirname(__file__))
load_dotenv(path.join(base_path, '.env'))

MONGO_HOST = environ.get('MONGO_HOST')
MONGO_USER = environ.get('MONGO_USER')
MONGO_PASSWORD = environ.get('MONGO_PASSWORD')

"""
Mongodb connection string
"""
connect('adunatio', host=MONGO_HOST, username=MONGO_USER, password=MONGO_PASSWORD, authentication_source='admin')

app = Flask(__name__)
app.secret_key = environ.get('APP_SECRET')
app.config["JWT_TOKEN_LOCATION"] = "headers"
app.config["JWT_HEADER_NAME"] = "Adunation_Session_Token"
app.config["JWT_HEADER_TYPE"] = "Bearer"

"""
flask jwt extended register
"""
jwt = JWTManager(app)

"""
flask mongorester register
"""
api = MongoApi(app, authentication_methods=[AuthJWT])
api.register_model(User, uri="/api/user/")
api.register_model(Union, uri="/api/union/")
api.register_model(Group, uri="/api/group/")
api.register_model(PaymentGroup, uri="/api/payment_group/")
api.register_model(Account, uri="/api/accounts/")
api.register_model(Payments, uri="/api/payments/")

"""
flask admin register
"""

adm = Admin(app)
adm.add_view(ModelView(User))
adm.add_view(ModelView(Union))
adm.add_view(ModelView(Group))

"""
login function
"""


@app.route('/auth/login', methods=['POST'])
def login():
    if not request.is_json:
        return jsonify({"message": "Missing JSON in request", "error": "parameter_error", "status":False}), 400

    username = request.json.get('username', None)
    password = request.json.get('password', None)
    if not username:
        return jsonify({"message": "Missing username parameter", "error": "parameter_error", "status":False}), 400
    if not password:
        return jsonify({"message": "Missing password parameter", "error": "parameter_error", "status":False}), 400

    try:
        user = User.objects.get(username=username)
    except Exception as e:
        app.logger.error(e)
        return jsonify({"message": "Bad username or password", "error": "Unauthorized", "status": False}), 401

    app.logger.error(password)
    app.logger.error(username)
    app.logger.error(generate_password_hash(password))
    app.logger.error(user.password)
    app.logger.error(check_password_hash(pwhash=user.password,password=password))

    if check_password_hash(pwhash=user.password,password=password) == False:
        return jsonify({"message": "Bad username or password", "error": "Unauthorized", "status":False}), 401

    # Identity can be any data that is json serializable
    access_token = create_access_token(identity=str(user.id))
    return jsonify(access_token=access_token,status=True), 200


if __name__ == '__main__':
    app.run(host="0.0.0.0", port=5000, debug=True)