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app.py

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+# app.py
+
+import streamlit as st
+from utils.translator import get_translator
+import os
+
+# -----------------------------
+# Configure app layout 
+# -----------------------------
+st.set_page_config(
+    page_title="Childhood Obesity Risk Dashboard",
+    layout="wide",
+    initial_sidebar_state="expanded"
+)
+
+# -----------------------------
+# Translator setup (default English)
+# -----------------------------
+if 'translator' not in st.session_state:
+    st.session_state['translator'] = get_translator('en')  # default language
+
+# Language selector
+lang = st.selectbox(
+    "🌐 Select Language",
+    ['English', 'Italiano', 'Ελληνικά', '中文'],
+    key="language_select"
+)
+
+if lang == 'English':
+    st.session_state['translator'] = get_translator('en')
+elif lang == 'Italiano':
+    st.session_state['translator'] = get_translator('it')
+elif lang == 'Ελληνικά':
+    st.session_state['translator'] = get_translator('el')
+elif lang == '中文':
+    st.session_state['translator'] = get_translator('zh-cn')
+
+_ = st.session_state['translator'].translate
+
+# -----------------------------
+# Homepage content
+# -----------------------------
+st.title(_("🏠 Welcome to the Childhood Obesity Risk Dashboard"))
+
+st.markdown(_("""
+This dashboard uses publicly available Australian health data to predict childhood obesity risk 
+based on lifestyle and demographic factors.  
+
+Navigate using the sidebar to explore key features:
+- 📊 Data Explorer
+- ⚖️ Fairness & Ethics
+- 🔍 Insights
+- 🎯 Predictor
+- 🧑‍🤝‍🧑 Caregiver Engine
+- 🔒 Privacy
+- 🎮 Healthy Habits Streaks (NEW!)
+- 📍 Resource Hub
+
+**Note:** This is an educational prototype — no personal data is collected or stored.
+"""))
+
+st.info(_("Tip: Start with the Predictor or Healthy Habits Streaks to try out the core features."))
+
+# -----------------------------
+# Sidebar navigation
+# -----------------------------
+with st.sidebar:
+    st.header("Go to pages")
+    st.page_link("pages/5_Predictor.py", label="🎯 Predictor")
+    st.page_link("pages/7_Resource_Hub.py", label="📍 Resource Hub")
+    if os.path.exists("pages/08_Healthy_Habits_Streaks.py"):
+        st.page_link("pages/08_Healthy_Habits_Streaks.py", label="🎮 Healthy Habits Streaks")
+    else:
+        st.caption("⚠️ Streaks page not found. Expected: pages/08_Healthy_Habits_Streaks.py")

pages/00_Subscription.py

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+import streamlit as st
+import json, os
+
+st.set_page_config(page_title="Subscription Plans", page_icon="💳")
+
+st.title("💳 Subscription Plans")
+st.caption("Choose a plan that works best for you or your family.")
+
+# -----------------------------
+# 1. Subscription Plans
+# -----------------------------
+plans = {
+    "free": {
+        "name": "Free Plan",
+        "price": "$0 / week",
+        "features": [
+            "✅ Track personal streaks (Activity, Sleep, Memory Aids)",
+            "✅ Daily habit reminders",
+            "❌ No social or family sharing"
+        ]
+    },
+    "standard": {
+        "name": "Standard Plan",
+        "price": "$20.99 / week",
+        "features": [
+            "✅ Track streaks (Activity, Sleep, Memory Aids)",
+            "✅ Social Sharing with community",
+            "✅ Connect with other dashboard users",
+            "❌ No family sharing features"
+        ]
+    },
+    "premium": {
+        "name": "Premium Plan",
+        "price": "$79.99 / week",
+        "features": [
+            "✅ Everything in Free + Standard",
+            "✅ Family Sharing Portal",
+            "✅ Family Support & Messaging",
+            "✅ Social Connections",
+            "✅ Weekly Reports & Alerts",
+            "✅ Caregiver monitoring"
+        ]
+    }
+}
+
+# -----------------------------
+# 2. Display Plan Options
+# -----------------------------
+cols = st.columns(3)
+
+for i, key in enumerate(plans.keys()):
+    plan = plans[key]
+    with cols[i]:
+        st.subheader(plan["name"])
+        st.metric("Price", plan["price"])
+        for f in plan["features"]:
+            st.write(f)
+        if st.button(f"Subscribe to {plan['name']}", key=key):
+            st.session_state["active_plan"] = key
+            st.success(f"✅ You have subscribed to {plan['name']}")
+
+# -----------------------------
+# 3. Persist Subscription Choice
+# -----------------------------
+FILE = "subscription.json"
+
+if "active_plan" not in st.session_state:
+    # Load from file if exists
+    if os.path.exists(FILE):
+        with open(FILE, "r") as f:
+            data = json.load(f)
+            st.session_state["active_plan"] = data.get("plan", "free")
+    else:
+        st.session_state["active_plan"] = "free"
+
+# Save selection when changed
+if "active_plan" in st.session_state:
+    with open(FILE, "w") as f:
+        json.dump({"plan": st.session_state["active_plan"]}, f)
+
+st.info(f"Your current plan: **{plans[st.session_state['active_plan']]['name']}**")
+

pages/08_Healthy_Habits_Streaks.py

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+import streamlit as st
+import datetime as dt
+import json, os
+
+st.title("🎮 Healthy Habits Streaks")
+
+# --------------------------
+# Step 1: Setup JSON persistence
+# --------------------------
+FILE = "streaks.json"
+
+# Load streaks from file if exists
+if os.path.exists(FILE):
+    with open(FILE, "r") as f:
+        streaks = json.load(f)
+else:
+    streaks = {
+        "screen_time_ok": 0,
+        "activity_done": 0,
+        "sleep_ok": 0,
+        "memory_ok": 0,
+        "last_date": None,
+        "logged_today": [],
+    }
+
+# Put into session_state
+if "streaks" not in st.session_state:
+    st.session_state.streaks = streaks
+
+today = dt.date.today()
+last_date = (
+    dt.date.fromisoformat(st.session_state.streaks["last_date"])
+    if st.session_state.streaks["last_date"]
+    else None
+)
+
+# --------------------------
+# Step 2: Reset if day skipped
+# --------------------------
+if last_date and (today - last_date).days > 1:
+    for k in ("screen_time_ok", "activity_done", "sleep_ok", "memory_ok"):
+        st.session_state.streaks[k] = 0
+    st.session_state.streaks["logged_today"] = []
+
+# --------------------------
+# Step 3: Habit logging
+# --------------------------
+col1, col2, col3 = st.columns(3)
+
+# Screen time
+with col1:
+    st.subheader("📱 Screen time")
+    ok = st.toggle("≤ 2 hrs today?", key="screen_time")
+    if ok and "screen_time_ok" not in st.session_state.streaks["logged_today"]:
+        st.session_state.streaks["screen_time_ok"] += 1
+        st.session_state.streaks["logged_today"].append("screen_time_ok")
+        st.session_state.streaks["last_date"] = str(today)
+        with open(FILE, "w") as f:
+            json.dump(st.session_state.streaks, f)
+
+# Activity
+with col2:
+    st.subheader("🏃 Activity")
+    done = st.toggle("≥ 60 mins activity?", key="activity")
+    if done and "activity_done" not in st.session_state.streaks["logged_today"]:
+        st.session_state.streaks["activity_done"] += 1
+        st.session_state.streaks["logged_today"].append("activity_done")
+        st.session_state.streaks["last_date"] = str(today)
+        with open(FILE, "w") as f:
+            json.dump(st.session_state.streaks, f)
+
+# Sleep
+with col3:
+    st.subheader("🛌 Sleep")
+    good = st.toggle("7–9 hrs sleep?", key="sleep")
+    if good and "sleep_ok" not in st.session_state.streaks["logged_today"]:
+        st.session_state.streaks["sleep_ok"] += 1
+        st.session_state.streaks["logged_today"].append("sleep_ok")
+        st.session_state.streaks["last_date"] = str(today)
+        with open(FILE, "w") as f:
+            json.dump(st.session_state.streaks, f)
+
+st.divider()
+
+# --------------------------
+# Step 4: Metrics
+# --------------------------
+c1, c2, c3, c4 = st.columns(4)
+with c1:
+    st.metric("Screen-time streak", st.session_state.streaks["screen_time_ok"])
+with c2:
+    st.metric("Activity streak", st.session_state.streaks["activity_done"])
+with c3:
+    st.metric("Sleep streak", st.session_state.streaks["sleep_ok"])
+with c4:
+    st.metric("Memory streak", st.session_state.streaks["memory_ok"])
+
+st.info("Tip: streaks reset if you miss a day. Each habit only counts once per day.")
+
+# --------------------------
+# Step 5: Memory Aids
+# --------------------------
+st.header("📝 Memory Aids")
+
+reminders = [
+    "Don’t forget your morning walk 🏃",
+    "Drink a glass of water 💧 now",
+    "Stretch for 5 minutes 🙆",
+]
+
+today_idx = today.day % len(reminders)
+st.info(reminders[today_idx])
+
+if st.button("✅ I did it! (Memory Aid)") and "memory_ok" not in st.session_state.streaks["logged_today"]:
+    st.session_state.streaks["memory_ok"] += 1
+    st.session_state.streaks["logged_today"].append("memory_ok")
+    st.session_state.streaks["last_date"] = str(today)
+    with open(FILE, "w") as f:
+        json.dump(st.session_state.streaks, f)
+    st.success(f"Great job! Your memory streak is now {st.session_state.streaks['memory_ok']} 🔥")

pages/09_Cognitive_Lifestyle_Support.py

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+import streamlit as st
+import datetime
+import time
+
+st.set_page_config(page_title="Cognitive & Lifestyle Support", page_icon="🧠")
+
+st.title("🧠 Cognitive & Lifestyle Support")
+st.markdown("Tools to support memory, lifestyle habits, and relaxation — designed for both children & elders.")
+
+# Initialize streaks in session_state
+if "memory_streak" not in st.session_state:
+    st.session_state.memory_streak = 0
+if "sleep_streak" not in st.session_state:
+    st.session_state.sleep_streak = 0
+
+today = datetime.date.today()
+
+# -------------------------
+# Section 1: Memory Aids
+# -------------------------
+st.header("📝 Memory Aids")
+
+reminders = [
+    "Don’t forget your morning walk 🏃",
+    "Drink a glass of water 💧 now",
+    "Stretch for 5 minutes 🙆",
+    "Call a friend or family member ☎️",
+    "Do a quick brain puzzle 🧩"
+]
+
+today_idx = today.day % len(reminders)
+st.info(reminders[today_idx])
+
+if st.button("✅ I did it! (Memory Aid)"):
+    st.session_state.memory_streak += 1
+    st.success(f"Great job! Your memory streak is now {st.session_state.memory_streak} 🔥")
+
+st.metric("Memory Streak", st.session_state.memory_streak)
+
+st.divider()
+
+# -------------------------
+# Section 2: Educational Tips
+# -------------------------
+st.header("📘 Daily Health Tip")
+
+tips = [
+    "Stretch while watching TV 📺",
+    "Choose fruit instead of sugary snacks 🍎",
+    "Go for a 10-min walk after meals 🚶",
+    "Keep a water bottle nearby 💧",
+    "Practice gratitude before bed 🙏",
+    "Limit caffeine in the evening ☕"
+]
+
+today_tip = tips[today.day % len(tips)]
+st.success(today_tip)
+
+st.divider()
+
+# -------------------------
+# Section 3: Relaxation Guide
+# -------------------------
+st.header("🌙 Relaxation & Sleep Tracking")
+
+st.markdown("Follow a simple breathing exercise to relax:")
+
+if st.button("Start Breathing Exercise"):
+    for i in range(3):
+        st.write("🌬️ Breathe in...")
+        time.sleep(3)
+        st.write("😌 Hold...")
+        time.sleep(2)
+        st.write("🎈 Breathe out...")
+        time.sleep(4)
+    st.success("Well done! Feeling calmer already 😌")
+
+# Sleep logging
+sleep_hours = st.slider("How many hours did you sleep last night?", 0, 12, 7)
+st.write(f"You logged **{sleep_hours} hours** of sleep 😴")
+
+if sleep_hours >= 7:
+    if st.button("✅ Mark Sleep as Healthy"):
+        st.session_state.sleep_streak += 1
+        st.success(f"Awesome! Your sleep streak is {st.session_state.sleep_streak} 🌟")
+else:
+    st.warning("Try to get at least 7–8 hours for better health 💡")
+
+st.metric("Sleep Streak", st.session_state.sleep_streak)
+
+st.divider()
+
+# -------------------------
+# Section 4: Quick Tips Panel
+# -------------------------
+st.header("💡 Quick Lifestyle Reminders")
+st.write("- Stay hydrated 💧")
+st.write("- Move every hour 🕒")
+st.write("- Keep a consistent bedtime 🛌")
+st.write("- Connect socially with friends/family 🤝")

pages/10_Streak_Summary.py

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+import streamlit as st
+
+st.title("🔥 Overall Streak Summary")
+
+st.write("Here’s how you’re doing across all lifestyle habits:")
+
+st.metric("Memory Aids Streak", st.session_state.get("memory_streak", 0))
+st.metric("Sleep Streak", st.session_state.get("sleep_streak", 0))
+st.metric("Healthy Habits Streak (from page 08)", st.session_state.get("healthy_streak", 0))