app.py

import streamlit as st
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.patches import Polygon, Circle

# Function definitions remain the same

def main():
    # Custom styles for the app
    st.markdown("""
        <style>
        body {
            background-color: #f0f2f6;
            color: #333333;
            font-family: 'Arial', sans-serif;
        }
        .stSidebar {
            background-color: #1e3a56;
        }
        h1, h2, h3, h4, h5, h6 {
            color: #1e3a56;
            font-family: 'Georgia', serif;
        }
        .stButton>button {
            background-color: #1e3a56;
            color: white;
            border-radius: 5px;
            font-size: 16px;
            padding: 10px 20px;
        }
        .stButton>button:hover {
            background-color: #0d2a45;
        }
        .stMarkdown {
            font-size: 16px;
        }
        </style>
    """, unsafe_allow_html=True)

    st.title("🎨 Advanced Triangle Solver")
    st.sidebar.header("🔢 Enter Triangle Coordinates:")

    # Sidebar inputs
    x1 = st.sidebar.number_input("X1", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")
    y1 = st.sidebar.number_input("Y1", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")
    x2 = st.sidebar.number_input("X2", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")
    y2 = st.sidebar.number_input("Y2", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")
    x3 = st.sidebar.number_input("X3", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")
    y3 = st.sidebar.number_input("Y3", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")

    if st.sidebar.button("🔍 Calculate"):
        a = calculate_distance(x2, y2, x3, y3)
        b = calculate_distance(x1, y1, x3, y3)
        c = calculate_distance(x1, y1, x2, y2)

        if not is_valid_triangle(a, b, c):
            st.error("❌ The entered points do not form a valid triangle.")
            return

        # Calculate angles, area, etc.
        A, B, C = calculate_angle(a, b, c), calculate_angle(b, a, c), calculate_angle(c, a, b)
        area = calculate_area(a, b, c)
        perimeter = calculate_perimeter(a, b, c)
        radius_in = calculate_radius_inscribed_circle(a, b, c)
        radius_circum = calculate_radius_circumscribed_circle(a, b, c)
        G_x, G_y = calculate_centroid(x1, y1, x2, y2, x3, y3)
        I_x, I_y = calculate_incenter(x1, y1, x2, y2, x3, y3, a, b, c)
        U_x, U_y = calculate_circumcenter(x1, y1, x2, y2, x3, y3, a, b, c)
        midpoints = calculate_midpoints(x1, y1, x2, y2, x3, y3)

        # Display results
        col1, col2 = st.columns(2)
        col1.metric("📐 Angle A (°)", f"{A:.2f}")
        col2.metric("📏 Side a (units)", f"{a:.2f}")

        # Additional metrics for better organization
        col1.metric("📐 Angle B (°)", f"{B:.2f}")
        col2.metric("📏 Side b (units)", f"{b:.2f}")

        st.subheader("📊 Properties")
        st.write(f"**Area:** {area:.2f} sq. units")
        st.write(f"**Perimeter:** {perimeter:.2f} units")

        plot_triangle(x1, y1, x2, y2, x3, y3, I_x, I_y, U_x, U_y, G_x, G_y, midpoints, a, b, c)

if __name__ == "__main__":
    main()