from flask import Flask, render_template, request, jsonify, redirect, url_for, session
from flask_session import Session  # Import the Session class
from flask.sessions import SecureCookieSessionInterface  # Import the class
from salesforce import get_salesforce_connection
from datetime import timedelta
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from menu import menu_blueprint  # Make sure this import is correct
from cart import cart_blueprint  # Same for other blueprints
from order import order_blueprint  # Same for user blueprint
from orderhistory import orderhistory_blueprint
from user_details import user_details_blueprint
from customdish import customdish_blueprint
from datetime import datetime
from datetime import datetime
import pytz  # Library to handle timezone conversions
import os
import smtplib
import random
import string

app = Flask(__name__)


# Add debug logs in Salesforce connection setup
sf = get_salesforce_connection()


# Set the secret key to handle sessions securely
app.secret_key = os.getenv("SECRET_KEY", "sSSjyhInIsUohKpG8sHzty2q")  # Replace with a secure key
app.config["SESSION_TYPE"] = "filesystem"  # Storing sessions in filesystem
app.config["SESSION_COOKIE_SECURE"] = True  # Enabling secure cookies (ensure your app is served over HTTPS)
app.config["SESSION_COOKIE_SAMESITE"] = "None"  # Cross-site cookies allowed

# Initialize the session
Session(app)  # Correctly initialize the Session object
app.session_interface = SecureCookieSessionInterface()

app.register_blueprint(cart_blueprint, url_prefix='/cart') 
app.register_blueprint(user_details_blueprint, url_prefix='/user')
app.register_blueprint(menu_blueprint)
app.register_blueprint(order_blueprint)
app.register_blueprint(orderhistory_blueprint, url_prefix='/orderhistory')
app.register_blueprint(customdish_blueprint, url_prefix='/customdish')



@app.route("/")
def home():
    # Fetch user details from URL parameters
    user_email = request.args.get("email")
    user_name = request.args.get("name")
    table_number = request.args.get("table")  # Capture table number
    if user_email and user_name:
        session["user_email"] = user_email
        session["user_name"] = user_name
        session["table_number"] = table_number  # Store table number in session
        print(f"User logged in: {user_email} - {user_name} - Table: {table_number}")

        # Ensure session is saved before redirecting
        session.modified = True
        return redirect(url_for("menu.menu"))  # Redirect to menu directly
    return render_template("index.html")
@app.route("/login", methods=["GET", "POST"])
def login():
    if request.method == "POST":
        email = request.form.get("email")
        password = request.form.get("password")
        print(f"Login attempt with email: {email}")  # Debug log

        try:
            # Fetch user details from Salesforce
            query = f"SELECT Id, Name, Email__c, Reward_Points__c FROM Customer_Login__c WHERE Email__c='{email}' AND Password__c='{password}'"
            result = sf.query(query)

            if result["records"]:
                user = result["records"][0]
                session['user_id'] = user['Id']

                # ✅ Always store or update session email
                if 'user_email' not in session or session['user_email'] != email:
                    session['user_email'] = email
                    session['user_name'] = user.get("Name", "")
                    print(f"✅ Session email updated: {session['user_email']}")

                reward_points = user.get("Reward_Points__c") or 0

                # Coupon generation logic (if reward points >= 500)
                if reward_points >= 500:
                    new_coupon_code = generate_coupon_code()
                    coupon_query = sf.query(f"SELECT Id, Coupon_Code__c FROM Referral_Coupon__c WHERE Referral_Email__c = '{email}'")

                    if coupon_query["records"]:
                        coupon_record = coupon_query["records"][0]
                        referral_coupon_id = coupon_record["Id"]
                        existing_coupons = coupon_record.get("Coupon_Code__c", "")

                        updated_coupons = f"{existing_coupons}\n{new_coupon_code}".strip()
                        sf.Referral_Coupon__c.update(referral_coupon_id, {"Coupon_Code__c": updated_coupons})
                    else:
                        sf.Referral_Coupon__c.create({
                            "Referral_Email__c": email,
                            "Name": user.get("Name", ""),
                            "Coupon_Code__c": new_coupon_code
                        })

                    new_reward_points = reward_points - 500
                    sf.Customer_Login__c.update(user['Id'], {"Reward_Points__c": new_reward_points})

                return redirect(url_for("menu.menu"))

            else:
                print("Invalid credentials!")
                return render_template("login.html", error="Invalid credentials!")

        except Exception as e:
            print(f"Error during login: {str(e)}")
            return render_template("login.html", error=f"Error: {str(e)}")

    return render_template("login.html")
@app.route("/logout")
def logout():
    # Retrieve table number before clearing session
    table_number = session.get('table_number', '')

    # Clear session variables
    session.pop('name', None)
    session.pop('email', None)
    session.pop('rewardPoints', None)
    session.pop('coupon', None)

    # Pass table number to redirect page
    return render_template("redirect_page.html", table_number=table_number)

if __name__ == "__main__":
    app.run(debug=True, host="0.0.0.0", port=7860)