from flask import Blueprint, redirect, url_for, render_template, flash
from flask_login import current_user
from application import db
from forms import FoodItemForm

user_bp = Blueprint(
    "user",
    __name__,
    template_folder="templates",
)


@user_bp.before_request
def login_required():
    if not current_user.is_authenticated:
        return redirect(url_for("login"))


@user_bp.route("/dashboard", methods=["GET"])
def dashboard():
    items = current_user.food_items.all()
    return render_template("dashboard.html", items=items)


@user_bp.route("/delete_food_item/<int:barcode>", methods=["POST"])
def delete_food_item(barcode: int):
    item = current_user.food_items.filter_by(barcode=barcode).first()
    if item:
        db.session.delete(item)
        db.session.commit()
    else:
        flash(f"You do not own a food item with barcode {barcode}")
    return redirect(url_for("user.dashboard"))


def edit_helper(form: FoodItemForm, item) -> bool:
    change = False
    for item in form:
        print(item)
    return change


@user_bp.route("/edit_food_item/<int:barcode>", methods=["GET", "POST"])
def edit_food_item(barcode: int):
    item = current_user.food_items.filter_by(barcode=barcode).first()
    if item:
        form = FoodItemForm()
        if form.validate_on_submit():
            edit_helper(form, item)
            return redirect(url_for("user.dashboard"))
        form = FoodItemForm(
            barcode=item.barcode,
            name=item.name,
            energy=item.energy_100g,
            protein=item.protein_100g,
            carbs=item.carbs_100g,
            sugar=item.sugar_100g,
            fat=item.fats_100g,
            saturated_fat=item.saturated_fats_100g,
        )
        return render_template("edit_food_item.html", form=form)
    else:
        return redirect(url_for("user.dashboard"))