import streamlit as st
from sympy import symbols, Eq, solve, sympify, binomial, factorial
import matplotlib.pyplot as plt
import numpy as np
from tkinter import ttk
from fractions import Fraction
from datetime import datetime

# Function to solve user equations
def solve_user_equation():
    equation_str = st.text_input("Enter the equation:")
    
    if equation_str:
        x, y = symbols('x y')
        try:
            equation = Eq(sympify(equation_str), 0)
            solution = solve(equation, x)
            st.text(f"x values: {solution}")
        except SympifyError:
            st.text("Invalid equation format. Please enter a valid equation.")
    else:
        st.text("Please enter an equation.")


# Function to calculate expression
def calculate_expression():
    expression_str = st.text_input("Enter the expression:")
    expression = sympify(expression_str)
    result = expression.evalf()
    st.text(f"Result: {result}")

# Function to calculate custom expression
def calculate_custom_expression():
    custom_expression_str = st.text_input("Enter the custom expression:")
    x, y = symbols('x y')
    custom_expression = sympify(custom_expression_str)
    result = custom_expression.evalf(subs={x: 3, y: 5})
    st.text(f"Result: {result}")

# Function for factorization and expansion
def factor_and_expand():
    # Your factor and expand logic here
    pass

# Function to calculate days remaining
def calculate_days_remaining():
    target_date_str = st.text_input("Enter the target date (YYYY-MM-DD):")
    try:
        target_date = datetime.strptime(target_date_str, "%Y-%m-%d")
        current_date = datetime.now()
        days_remaining = (target_date - current_date).days
        st.text(f"Days remaining: {days_remaining} days")
    except ValueError:
        st.text("Invalid date format. Use YYYY-MM-DD.")

# Function to calculate combination
def calculate_combination():
    n = int(st.text_input("Enter n:"))
    m = int(st.text_input("Enter m:"))
    result = binomial(n, m)
    st.text(f"{n}C{m} is {result}")

# Function to calculate permutation
def calculate_permutation():
    n = int(st.text_input("Enter n:"))
    m = int(st.text_input("Enter m:"))
    result = factorial(n) / factorial(n - m)
    st.text(f"{n}P{m} is {result}")

# Function to calculate intersection
def calculate_intersection():
    # Your intersection calculation logic here
    pass

# Function to calculate probability for Dice App
def calculate_probability():
    n = int(st.text_input("Enter n (number of faces on the dice):"))
    min_value = int(st.text_input("Enter the minimum value:"))
    values = st.text_input("Enter values (comma-separated):").split(',')
    target_option = st.selectbox("Select target option:", ["Comma Separated", "Multiples", "Factors", "Custom Function"])
    target_value = st.text_input("Enter target value:")
    as_fraction = st.checkbox("Display result as fraction")

    # Your probability calculation logic here

# Function to create Streamlit app
def main():
    st.title("Combined Streamlit App")

    st.header("Equation Solver")
    solve_user_equation()
    calculate_expression()
    calculate_custom_expression()

    st.header("Factorization and Expansion")
    factor_and_expand()

    st.header("Dice App")
    calculate_probability()

    st.header("Intersection Calculator")
    calculate_intersection()

    st.header("Days Remaining Calculator")
    calculate_days_remaining()

    st.header("Combination and Permutation Calculator")
    calculate_combination()
    calculate_permutation()

if __name__ == "__main__":
    main()