from flask import request, jsonify
import decimal
from datetime import datetime
from app.promo import promo
from app import db
from app.classes.promo import (
    Promo_Promo,
    Promo_Promo_schema)
from app.classes.delivery import (Delivery_Delivery,
                                  Delivery_Delivery_schema,
                                  Delivery_Notes_Driver,
                                  )

def convert_to_decimal(text):
    try:
        number = float(text)
        return round(number, 2)
    except ValueError:
        return "0"
    

@promo.route("/<int:promo_id>", methods=["GET"])
def get_promo(promo_id):
    """
    """
    get_promo_data = (db.session 
        .query(Promo_Promo) 
        .filter(Promo_Promo.id == promo_id) 
        .first())
    query_schema = Promo_Promo_schema(many=False)
    return jsonify(query_schema.dump(get_promo_data))


@promo.route("/promoprice/<int:delivery_id>", methods=["GET"])
def get_promo_price(delivery_id):
    """
    """
    get_delivery = (db.session
        .query(Delivery_Delivery)
        .filter(Delivery_Delivery.id == delivery_id)
        .first())

    price = get_delivery.customer_price - get_delivery.promo_money_discount
    price = convert_to_decimal(price)
    return jsonify({
        "ok": True,
        "price": price,
    }), 200



@promo.route("/all", methods=["GET"])
def get_all_promo():
    """
    """
    get_promo_data = (db.session 
        .query(Promo_Promo) 
        .all())
    query_schema = Promo_Promo_schema(many=True)
    return jsonify(query_schema.dump(get_promo_data))


@promo.route("/delete/<int:promo_id>", methods=["DELETE"])
def delete_a_promo(promo_id):
    """
    """
    get_promo_data = (db.session 
        .query(Promo_Promo) 
        .filter(Promo_Promo.id == promo_id) 
        .first())
    
    db.session.delete(get_promo_data)
    db.session.commit()


    return jsonify({
        "ok": True,
    }), 200

@promo.route("/create", methods=["POST"])
def create_promo():
    """
    """
    date_created = datetime.utcnow()
    name_of_promotion = request.json["name_of_promotion"]
    money_off_delivery = request.json["money_off_delivery"]
    description = request.json["description"]
    text_on_ticket = request.json["text_on_ticket"]
    # see if it exists

    amount_off = convert_to_decimal(money_off_delivery)

    new_promo = Promo_Promo(
        name_of_promotion = name_of_promotion,
        money_off_delivery = amount_off,
        description = description,
        date_created = date_created, 
        text_on_ticket=text_on_ticket
    )
    db.session.add(new_promo)
    db.session.commit()

            
    return jsonify({
        "ok": True,
        'promo_id':new_promo.id,
    }), 200


@promo.route("/edit/<int:promo_id>", methods=["PUT"])
def edit_promo(promo_id):
    """
   
    """
    get_promo_data = (db.session 
        .query(Promo_Promo) 
        .filter(Promo_Promo.id == promo_id) 
        .first())
    text_on_ticket = request.json["text_on_ticket"]
    name_of_promotion = request.json["name_of_promotion"]
    money_off_delivery = request.json["money_off_delivery"]
    description = request.json["description"]


    amount_off = convert_to_decimal(money_off_delivery)

    get_promo_data.text_on_ticket = text_on_ticket
    get_promo_data.description = description
    get_promo_data.name_of_promotion = name_of_promotion
    get_promo_data.money_off_delivery = amount_off

    db.session.add(get_promo_data)
    db.session.commit()

    return jsonify({
        "ok": True,
        'promo_id':get_promo_data.id,
    }), 200



@promo.route("/on/<int:promo_id>", methods=["PATCH"])
def turn_on_promo(promo_id):
    """
   
    """
    get_promo_data = (db.session 
        .query(Promo_Promo) 
        .filter(Promo_Promo.id == promo_id) 
        .first())

    get_promo_data.active = True
   

    db.session.add(get_promo_data)
    db.session.commit()

    return jsonify({
        "ok": True,
        'promo_id':get_promo_data.id,
    }), 200

@promo.route("/off/<int:promo_id>", methods=["PATCH"])
def turn_off_promo(promo_id):
    """
   
    """
    get_promo_data = (db.session 
        .query(Promo_Promo) 
        .filter(Promo_Promo.id == promo_id) 
        .first())

    get_promo_data.active = False
   

    db.session.add(get_promo_data)
    db.session.commit()

    return jsonify({
        "ok": True,
        'promo_id':get_promo_data.id,
    }), 200