Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,117 +1,179 @@
 import streamlit as st
+import pandas as pd
 
-# --- Page Configuration ---
+# --- Page Config ---
 st.set_page_config(
-    page_title="FitPulse Profile Builder",
-    page_icon="💪",
-    layout="centered"
+    page_title="FitPulse Pro | Dashboard",
+    page_icon="⚡",
+    layout="wide",
+    initial_sidebar_state="expanded",
 )
 
-# --- Custom CSS for "App-like" Feel ---
+# --- Custom CSS for Modern UI ---
 st.markdown("""
     <style>
-    .main {
-        background-color: #f8f9fa;
+    /* Main Background */
+    .stApp {
+        background-color: #f4f7f6;
     }
-    .stButton>button {
-        width: 100%;
-        border-radius: 10px;
-        height: 3em;
-        background-color: #FF4B4B;
+    
+    /* Sidebar Styling */
+    section[data-testid="stSidebar"] {
+        background-color: #1E1E2F !important;
+        color: white;
+    }
+    
+    /* Card Styling */
+    div.stButton > button:first-child {
+        background-color: #624BFF;
         color: white;
-        font-weight: bold;
+        border-radius: 8px;
+        border: none;
+        padding: 0.6rem 2rem;
+        transition: all 0.3s ease;
+    }
+    
+    div.stButton > button:hover {
+        background-color: #4B39C1;
+        transform: translateY(-2px);
     }
-    .css-1544g2n { 
-        padding: 2rem 1rem;
-        border-radius: 15px;
+
+    /* Custom Metric Box */
+    .metric-card {
         background-color: white;
-        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
+        padding: 20px;
+        border-radius: 12px;
+        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
+        border-left: 5px solid #624BFF;
     }
     </style>
     """, unsafe_allow_html=True)
 
-def calculate_bmi(weight, height_cm):
-    height_m = height_cm / 100
-    bmi = weight / (height_m ** 2)
-    return round(bmi, 2)
-
-def get_bmi_category(bmi):
-    if bmi < 18.5:
-        return "Underweight", "blue"
-    elif 18.5 <= bmi < 24.9:
-        return "Normal", "green"
-    elif 25 <= bmi < 29.9:
-        return "Overweight", "orange"
-    else:
-        return "Obese", "red"
+# --- Session State Initialization ---
+if 'profile_created' not in st.session_state:
+    st.session_state.profile_created = False
+    st.session_state.user_data = {}
 
-# --- Header ---
-st.title("💪 FitPulse")
-st.subheader("Create Your Fitness Profile")
-st.write("Complete the details below to unlock your personalized health metrics.")
+# --- Helper Functions ---
+def calculate_bmi(w, h_cm):
+    h_m = h_cm / 100
+    return round(w / (h_m ** 2), 2)
 
-# --- Form Section ---
-with st.form("fitness_form"):
-    st.markdown("### 👤 Personal Information")
-    name = st.text_input("Full Name", placeholder="e.g. John Doe")
-    
-    col1, col2 = st.columns(2)
-    with col1:
-        height = st.number_input("Height (cm)", min_value=0.0, step=0.1, help="Enter your height in centimeters")
-    with col2:
-        weight = st.number_input("Weight (kg)", min_value=0.0, step=0.1, help="Enter your weight in kilograms")
+def get_bmi_status(bmi):
+    if bmi < 18.5: return "Underweight", "🔵", "Consider a nutrient-rich diet."
+    if bmi < 25: return "Normal", "🟢", "Great job! Maintain your current lifestyle."
+    if bmi < 30: return "Overweight", "🟠", "Incorporate more cardio and portion control."
+    return "Obese", "🔴", "Consult with a healthcare provider for a plan."
 
+# --- Sidebar Navigation ---
+with st.sidebar:
+    st.markdown("<h1 style='color: white;'>⚡ FitPulse Pro</h1>", unsafe_allow_html=True)
     st.markdown("---")
-    st.markdown("### 🎯 Fitness Details")
-    
-    goal = st.selectbox("Fitness Goal", 
-                        ["Build Muscle", "Weight Loss", "Strength Gain", "Abs Building", "Flexible"])
-    
-    level = st.select_slider("Fitness Level", 
-                             options=["Beginner", "Intermediate", "Advanced"])
-    
-    equipment = st.multiselect("Available Equipment", 
-                                ["Dumbbells", "Resistance Band", "Yoga Mat", "Barbell", "Kettlebell", "No Equipment"],
-                                default=["No Equipment"])
+    menu = st.radio(
+        "NAVIGATION",
+        ["🏠 Dashboard", "👤 User Profile", "📊 Health Metrics", "🥗 Meal Plan (Beta)"],
+        index=0 if not st.session_state.profile_created else 0
+    )
+    st.markdown("---")
+    st.info("System Status: Online")
+
+# --- Page Logic ---
 
-    submitted = st.form_submit_button("Generate My Profile")
+if menu == "👤 User Profile":
+    st.header("👤 Personal Information")
+    st.write("Complete your profile to sync your health data.")
+    
+    with st.container():
+        col1, col2 = st.columns(2)
+        with col1:
+            name = st.text_input("Full Name", value=st.session_state.user_data.get('name', ""))
+            height = st.number_input("Height (cm)", min_value=0.0, max_value=250.0, value=float(st.session_state.user_data.get('height', 170.0)))
+        with col2:
+            weight = st.number_input("Weight (kg)", min_value=0.0, max_value=300.0, value=float(st.session_state.user_data.get('weight', 70.0)))
+            level = st.select_slider("Fitness Level", options=["Beginner", "Intermediate", "Advanced"])
+        
+        goal = st.selectbox("Primary Fitness Goal", ["Build Muscle", "Weight Loss", "Strength Gain", "Abs Building", "Flexible"])
+        equip = st.multiselect("Available Equipment", ["Dumbbells", "Resistance Band", "Yoga Mat", "No Equipment", "Full Gym"], default=["No Equipment"])
+        
+        if st.button("Save & Update Profile"):
+            if name and height > 0 and weight > 0:
+                st.session_state.user_data = {
+                    "name": name, "height": height, "weight": weight,
+                    "goal": goal, "level": level, "equip": equip,
+                    "bmi": calculate_bmi(weight, height)
+                }
+                st.session_state.profile_created = True
+                st.success("Profile Updated!")
+                st.balloons()
+            else:
+                st.error("Please fill in all required fields accurately.")
 
-# --- Logic & Output ---
-if submitted:
-    # Validation
-    if not name:
-        st.error("Please enter your name.")
-    elif height <= 0 or weight <= 0:
-        st.error("Height and Weight must be greater than zero.")
+elif menu == "🏠 Dashboard":
+    if not st.session_state.profile_created:
+        st.warning("⚠️ Please complete your **User Profile** section first.")
+        st.image("https://illustrations.popsy.co/gray/fitness-stats.svg", width=400)
     else:
-        # Calculations
-        bmi_val = calculate_bmi(weight, height)
-        category, color = get_bmi_category(bmi_val)
+        ud = st.session_state.user_data
+        st.title(f"Welcome back, {ud['name']}! 👋")
         
-        # Results Display
-        st.success(f"Profile Created Successfully for **{name}**!")
+        # Dashboard Row 1: Key Metrics
+        m1, m2, m3, m4 = st.columns(4)
+        status, icon, advice = get_bmi_status(ud['bmi'])
         
-        res_col1, res_col2 = st.columns(2)
+        m1.metric("Current BMI", f"{ud['bmi']}")
+        m2.metric("Status", status)
+        m3.metric("Goal", ud['goal'])
+        m4.metric("Level", ud['level'])
         
-        with res_col1:
-            st.metric(label="Calculated BMI", value=f"{bmi_val}")
+        st.markdown("---")
         
-        with res_col2:
-            st.markdown(f"**Category:**")
-            if category == "Normal":
-                st.info(f"✨ {category}")
-            elif category == "Underweight":
-                st.warning(f"⚠️ {category}")
-            else:
-                st.error(f"🚨 {category}")
+        # Dashboard Row 2: Visual Insights
+        c1, c2 = st.columns([2, 1])
+        with c1:
+            st.subheader("🚀 Activity Overview")
+            st.info(f"**Recommended focus:** Based on your goal of **{ud['goal']}**, you should prioritize protein intake and consistent training.")
+            
+            # Simulated Chart
+            chart_data = pd.DataFrame({
+                'Week': ['W1', 'W2', 'W3', 'W4'],
+                'Consistency': [70, 85, 80, 95]
+            })
+            st.line_chart(chart_data.set_index('Week'))
+            
+        with c2:
+            st.subheader("🛠️ Setup")
+            st.write("**Equipment:**")
+            for item in ud['equip']:
+                st.write(f"✅ {item}")
+            
+            st.markdown(f"""
+            <div class="metric-card">
+                <h4>Health Advice</h4>
+                <p>{icon} {advice}</p>
+            </div>
+            """, unsafe_allow_html=True)
+
+elif menu == "📊 Health Metrics":
+    if not st.session_state.profile_created:
+        st.error("No data found. Please enter details in Profile.")
+    else:
+        st.header("📊 Deep Dive Metrics")
+        ud = st.session_state.user_data
+        
+        # Detailed BMI Breakdown
+        st.subheader("BMI Analysis")
+        st.progress(min(ud['bmi']/40, 1.0))
+        st.write(f"Your BMI is **{ud['bmi']}**. Ideal range is 18.5 - 24.9.")
+        
+        # Calculations for calories (Simplified BMR)
+        bmr = 10 * ud['weight'] + 6.25 * ud['height'] - 5 * 25 + 5 # Simplified Male BMR for logic demo
+        st.write(f"**Estimated Daily Maintenance Calories:** {int(bmr)} kcal")
 
-        # Summary Table
-        st.markdown("### 📋 Profile Summary")
-        data = {
-            "Detail": ["Goal", "Level", "Equipment"],
-            "Value": [goal, level, ", ".join(equipment)]
-        }
-        st.table(data)
+else: # Meal Plan Beta
+    st.header("🥗 Personalized Meal Plan")
+    st.info("This feature is currently in Beta. Based on your goal, we recommend a 40/30/30 Macro split.")
+    st.image("https://illustrations.popsy.co/gray/healthy-food.svg", width=300)
 
 # --- Footer ---
-st.caption("Data is processed locally and not stored. Stay healthy!")
+st.sidebar.markdown("---")
+st.sidebar.caption("FitPulse v2.1.0-Stable")