from flask import Flask, render_template, request, redirect, url_for, jsonify
from models.salesforce import fetch_menu_items, place_order_in_salesforce
from models.cart import add_to_cart, view_cart, clear_cart
from models.user import login_user, signup_user

app = Flask(__name__)

@app.route("/", methods=["GET", "POST"])
def login():
    if request.method == "POST":
        email = request.form.get("email")
        password = request.form.get("password")
        success, message = login_user(email, password)
        if success:
            return redirect(url_for("menu"))
        return render_template("login.html", error=message)
    return render_template("login.html")

@app.route("/signup", methods=["GET", "POST"])
def signup():
    if request.method == "POST":
        name = request.form.get("name")
        email = request.form.get("email")
        phone = request.form.get("phone")
        password = request.form.get("password")
        success, message = signup_user(name, email, phone, password)
        if success:
            return redirect(url_for("login"))
        return render_template("signup.html", error=message)
    return render_template("signup.html")

@app.route("/menu")
def menu():
    menu_items = fetch_menu_items()
    return render_template("menu.html", menu_items=menu_items)

@app.route("/add_to_cart", methods=["POST"])
def add_to_cart_route():
    data = request.json
    cart = add_to_cart(data["name"], data["price"])
    return jsonify({"message": "Item added to cart!", "cart": cart})

@app.route("/cart")
def cart_page():
    cart, total = view_cart()
    return render_template("cart.html", cart=cart, total=total)

@app.route("/place_order", methods=["POST"])
def place_order():
    email = request.form.get("email")
    cart, total = view_cart()
    if not cart:
        return render_template("cart.html", error="Cart is empty!", cart=cart, total=0)
    order_details = "\n".join([f"{item['Name']} - ${item['Price']} x {item['Quantity']}" for item in cart])
    try:
        place_order_in_salesforce(email, order_details, total)
        clear_cart()
        return render_template("cart.html", success="Order placed successfully!", cart=[], total=0)
    except Exception as e:
        return render_template("cart.html", error=f"Error: {str(e)}", cart=cart, total=total)

if __name__ == "__main__":
    app.run(debug=True)