Update app.py

app.py

@@ -1,47 +1,77 @@
 import streamlit as st
 
-st.set_page_config(page_title="Block Quantity Calculator", layout="centered")
+st.set_page_config(page_title="🧱 Block Quantity Calculator", layout="centered")
 
-st.title("🧱 Blocks Quantity Calculation")
+st.title("🧱 Block Quantity Calculator")
 
-unit = st.selectbox("Select Unit", ["m", "cm"])
+unit = st.selectbox("Choose Unit", ["m", "cm"])
 
-def convert_to_m(val, unit):
+def convert(val):
     return val / 100 if unit == "cm" else val
 
-st.subheader("Dimension of Wall")
-wall_length = convert_to_m(st.number_input("Wall Length (L)", value=0.0), unit)
-wall_height = convert_to_m(st.number_input("Wall Height (H)", value=0.0), unit)
-wall_thickness = convert_to_m(st.number_input("Wall Thickness (T)", value=0.0), unit)
+# Wall Dimensions
+st.subheader("Wall Dimensions")
+L = convert(st.number_input("Wall Length", value=0.0))
+H = convert(st.number_input("Wall Height", value=0.0))
+T = convert(st.number_input("Wall Thickness", value=0.0))
 
-st.subheader("Dimension of Block")
-block_length = convert_to_m(st.number_input("Block Length", value=0.0), unit)
-block_width = convert_to_m(st.number_input("Block Width", value=0.0), unit)
-block_height = convert_to_m(st.number_input("Block Height", value=0.0), unit)
+# Block Dimensions
+st.subheader("Block Dimensions")
+BL = convert(st.number_input("Block Length", value=0.0))
+BH = convert(st.number_input("Block Height", value=0.0))
+BW = convert(st.number_input("Block Width", value=0.0))
 
-st.subheader("Mortar Ratio")
-cement_ratio = st.number_input("Cement", value=1.0)
-sand_ratio = st.number_input("Sand", value=2.5)
-ratio_total = cement_ratio + sand_ratio
+# Mortar Ratio
+st.subheader("Cement-Sand Ratio")
+cement = st.number_input("Cement Ratio", value=1.0)
+sand = st.number_input("Sand Ratio", value=2.5)
+ratio_sum = cement + sand
 
-subtract_area = st.number_input("Subtract Area (Windows/Doors) in m²", value=0.0)
-block_price = st.number_input("Block Price (per unit)", value=0.0)
+# Other Inputs
+st.subheader("Additional Inputs")
+deduct_area = st.number_input("Deducted Area (e.g., windows/doors) in m²", value=0.0)
+block_price = st.number_input("Block Price (optional)", value=0.0)
 
 if st.button("Calculate"):
-    wall_volume = wall_length * wall_height * wall_thickness - subtract_area
-    block_volume = block_length * block_height * block_width
-    number_of_blocks = wall_volume / block_volume
-    dry_mortar_volume = wall_volume * 0.21
-    cement_volume = dry_mortar_volume * (cement_ratio / ratio_total)
-    sand_volume = dry_mortar_volume * (sand_ratio / ratio_total)
-    cement_bags = cement_volume / 0.0347
-    total_cost = number_of_blocks * block_price
-
-    st.markdown("### 📋 Results")
-    st.write(f"**Wall Volume:** {wall_volume:.2f} m³")
-    st.write(f"**Number of Blocks:** {number_of_blocks:.2f}")
-    st.write(f"**Dry Mortar:** {dry_mortar_volume:.2f} m³")
-    st.write(f"**Cement Volume:** {cement_volume:.2f} m³")
-    st.write(f"**Sand Volume:** {sand_volume:.2f} m³")
-    st.write(f"**Cement Bags (50kg):** {cement_bags:.2f} bags")
-    st.write(f"**Blocks Cost:** ${total_cost:.2f}")
+    wall_vol = (L * H * T) - deduct_area
+    block_vol = BL * BH * BW
+    num_blocks = wall_vol / block_vol
+    dry_mortar = wall_vol * 0.21
+    cement_vol = dry_mortar * (cement / ratio_sum)
+    sand_vol = dry_mortar * (sand / ratio_sum)
+    cement_bags = cement_vol / 0.0347
+    cost = num_blocks * block_price
+
+    st.markdown("## 📘 Calculation Breakdown")
+
+    st.markdown(f"""
+    ### 🧱 Wall Volume
+    **Formula:** `Length × Height × Thickness - Deducted Area`  
+    **=** {L:.2f} × {H:.2f} × {T:.2f} - {deduct_area:.2f}  
+    **= {wall_vol:.2f} m³**
+
+    ### 🧱 Block Volume
+    **Formula:** `Length × Height × Width`  
+    **=** {BL:.2f} × {BH:.2f} × {BW:.2f}  
+    **= {block_vol:.4f} m³**
+
+    ### 🔢 Number of Blocks
+    **Formula:** `Wall Volume ÷ Block Volume`  
+    **=** {wall_vol:.2f} ÷ {block_vol:.4f}  
+    **= {num_blocks:.0f} blocks**
+
+    ### 🧪 Dry Mortar Volume
+    **Formula:** `Wall Volume × 0.21`  
+    **=** {wall_vol:.2f} × 0.21  
+    **= {dry_mortar:.2f} m³**
+
+    ### 🧱 Cement & Sand Volume
+    **Cement Volume:**  
+    **=** {dry_mortar:.2f} × ({cement} / {ratio_sum}) = {cement_vol:.2f} m³  
+    **Sand Volume:**  
+    **=** {dry_mortar:.2f} × ({sand} / {ratio_sum}) = {sand_vol:.2f} m³
+
+    ### 🧱 Cement Bags
+    **Formula:** `Cement Volume ÷ 0.0347`  
+    **=** {cement_vol:.2f} ÷ 0.0347  
+    **= {cement_bags:.0f} bags_**