Merge pull request 'show-most-recent-feeding-session' (#39) from show-most-recent-feeding-session into main

Reviewed-on: #39

.gitea/workflows/refresh_showcase_data.yml

@@ -0,0 +1,43 @@
+name: Refresh Showcase Data
+
+on:
+  schedule:
+    # Run daily at 3 AM UTC
+    - cron: "0 3 * * *"
+  workflow_dispatch: # Allow manual triggering
+
+jobs:
+  refresh-data:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ vars.PYTHON_VERSION }}
+
+      - name: Install uv
+        run: curl -LsSf https://astral.sh/uv/install.sh | sh
+
+      - name: Install dependencies
+        run: |
+          uv sync --no-dev --all-extras
+
+      - name: Run showcase data seeding script
+        env:
+          ADMIN_USERNAME: ${{ secrets.ADMIN_USERNAME }}
+          ADMIN_PASSWORD: ${{ secrets.ADMIN_PASSWORD }}
+          POSTGRES_URI: ${{ secrets.POSTGRES_URI }}
+        run: |
+          uv run python scripts/seed_showcase_data.py
+
+      - name: Notify on success
+        if: success()
+        run: echo "✅ Showcase data refreshed successfully"
+
+      - name: Notify on failure
+        if: failure()
+        run: echo "❌ Failed to refresh showcase data"

pyproject.toml

@@ -71,3 +71,7 @@ markers = [
 [[tool.mypy.overrides]]
 module = "redis.*"
 ignore_missing_imports = true
+
+[[tool.mypy.overrides]]
+module = "showcase_data_definitions.*"
+ignore_missing_imports = true

scripts/seed_showcase_data.py

@@ -0,0 +1,185 @@
+"""Seed test data into the database for demo purposes."""
+
+import sys
+from pathlib import Path
+from datetime import datetime
+
+# Add parent directory to path to import baby_monitor modules
+sys.path.insert(0, str(Path(__file__).parent.parent / "src"))
+
+# Import after path is set up
+from baby_monitor.repositories.dependencies.get_database import (  # noqa: E402
+    get_database,
+    init_db,
+)
+from baby_monitor.repositories.user.sqlite_user import (  # noqa: E402
+    DatabaseUserRepository,
+)
+from baby_monitor.repositories.child.sqlite_child import (  # noqa: E402
+    DatabaseChildRepository,
+)
+from baby_monitor.repositories.feeding.sqlite_feeding import (  # noqa: E402
+    DatabaseFeedingRepository,
+)
+from baby_monitor.repositories.diaper_change.sqlite_diaper_change import (  # noqa: E402, E501
+    DatabaseDiaperChangeRepository,
+)
+from baby_monitor.repositories.sleep.sqlite_sleep import (  # noqa: E402
+    DatabaseSleepRepository,
+)
+from baby_monitor.routers.auth import hash_password  # noqa: E402
+from showcase_data_definitions import generate_showcase_data  # noqa: E402
+
+
+def seed_database(reference_time: datetime | None = None) -> None:
+    """
+    Seed the database with test data.
+
+    This function is idempotent - it will check if test users exist
+    and either create them or update timestamps of existing data.
+
+    Args:
+        reference_time: The "now" time to use for generating timestamps.
+            Defaults to current time.
+    """
+    # Initialize database
+    init_db()
+    db = next(get_database())
+
+    try:
+        # Initialize repositories
+        user_repo = DatabaseUserRepository(db)
+        child_repo = DatabaseChildRepository(db)
+        feeding_repo = DatabaseFeedingRepository(db)
+        diaper_repo = DatabaseDiaperChangeRepository(db)
+        sleep_repo = DatabaseSleepRepository(db)
+
+        # Generate showcase data
+        test_data = generate_showcase_data(reference_time)
+
+        print("Starting database seeding...")
+        print(f"Reference time: {test_data['reference_time']}")
+
+        # Create or get showcase users
+        user_ids = []
+        for user_data in test_data["users"]:
+            # Check if user exists
+            existing_user = user_repo.get_by_username(user_data["username"])
+
+            if existing_user:
+                print(f"✓ User '{user_data['username']}' already exists")
+                user_ids.append(existing_user["id"])
+            else:
+                # Create new user
+                hashed_pw = hash_password(user_data["password"])
+                user_id = user_repo.create(
+                    username=user_data["username"],
+                    hashed_password=hashed_pw,
+                )
+                user_ids.append(user_id["id"])
+                print(f"✓ Created user '{user_data['username']}'")
+
+        # Create or get shared child
+        child_data = test_data["child"]
+
+        # Check if child exists for first user
+        existing_children = child_repo.get_by_user_id(user_ids[0])
+        child_id: int | None = None
+
+        # Look for existing child with matching name
+        for child in existing_children:
+            if child["name"] == child_data["name"]:
+                child_id = child["id"]
+                print(f"✓ Child '{child_data['name']}' already exists")
+                break
+
+        if child_id is None:
+            # Create new child
+            created_child = child_repo.create(
+                name=child_data["name"],
+                birth_time=child_data["birth_time"],
+                birth_weight=child_data["birth_weight"],
+                user_id=user_ids[0],
+            )
+            child_id = created_child["id"]
+            print(f"✓ Created child '{child_data['name']}'")
+
+        # Ensure child_id is set
+        assert child_id is not None, "Child ID must be set at this point"
+
+        # Share child with second user if not already shared
+        parent_ids = child_repo.get_parent_ids(child_id)
+        if user_ids[1] not in parent_ids:
+            child_repo.add_parent(child_id, user_ids[1])
+            msg = f"✓ Shared child with '{test_data['users'][1]['username']}'"
+            print(msg)
+
+        # Clear existing logs to avoid duplicates
+        print("Clearing existing logs...")
+
+        # Get all logs for this child
+        existing_feedings = feeding_repo.get_by_child_id(child_id)
+        for feeding in existing_feedings:
+            feeding_repo.delete(feeding["id"])
+
+        existing_diapers = diaper_repo.get_by_child_id(child_id)
+        for diaper in existing_diapers:
+            diaper_repo.delete(diaper["id"])
+
+        existing_sleep = sleep_repo.get_by_child_id(child_id)
+        for sleep in existing_sleep:
+            sleep_repo.delete(sleep["id"])
+
+        print("✓ Cleared existing logs")
+
+        # Add feeding logs
+        print(f"Adding {len(test_data['feedings'])} feeding logs...")
+        for feeding in test_data["feedings"]:
+            feeding_repo.create(
+                child_id=child_id,
+                start_time=feeding["start_time"],
+                end_time=feeding["end_time"],
+                feeding_type=feeding["feeding_type"],
+            )
+        print(f"✓ Added {len(test_data['feedings'])} feedings")
+
+        # Add diaper changes
+        print(f"Adding {len(test_data['diapers'])} diaper changes...")
+        for diaper in test_data["diapers"]:
+            diaper_repo.create(
+                child_id=child_id,
+                change_time=diaper["time"],
+                poop_color=diaper.get("poop_color"),
+                poop_amount=diaper.get("poop_amount"),
+                pee_color=diaper.get("pee_color"),
+                pee_amount=diaper.get("pee_amount"),
+            )
+        print(f"✓ Added {len(test_data['diapers'])} diaper changes")
+
+        # Add sleep sessions
+        print(f"Adding {len(test_data['sleep'])} sleep sessions...")
+        for sleep in test_data["sleep"]:
+            sleep_repo.create(
+                child_id=child_id,
+                start_time=sleep["start_time"],
+                end_time=sleep["end_time"],
+            )
+        print(f"✓ Added {len(test_data['sleep'])} sleep sessions")
+
+        db.commit()
+        print("\n✅ Database seeding completed successfully!")
+        print("\nTest user credentials:")
+        print(f"  Username: {test_data['users'][0]['username']}")
+        print(f"  Password: {test_data['users'][0]['password']}")
+        print("  (Both users share the same password)")
+
+    except Exception as e:
+        db.rollback()
+        print(f"\n❌ Error seeding database: {e}")
+        raise
+    finally:
+        db.close()
+
+
+if __name__ == "__main__":
+    seed_database()

scripts/showcase_data_definitions.py

@@ -0,0 +1,278 @@
+"""Definition of showcase data to be used for presenting the app."""
+
+from datetime import datetime, timedelta
+import random
+
+# User credentials
+SHOWCASE_USERS = [
+    {
+        "username": "user",
+        "password": "demo123",  # Will be hashed when inserted
+    },
+    {
+        "username": "user2",
+        "password": "demo123",  # Will be hashed when inserted
+    },
+]
+
+# Shared child (14 days old)
+CHILD_AGE_DAYS = 14
+
+
+def get_child_data(reference_time: datetime) -> dict:
+    """Get child data with birth time relative to reference time."""
+    birth_time = reference_time - timedelta(days=CHILD_AGE_DAYS)
+    return {
+        "name": "Emma Rose",
+        "birth_time": birth_time,
+        "birth_weight": 3420,  # grams (7.5 lbs)
+    }
+
+
+def get_feeding_schedule(reference_time: datetime) -> list[dict]:
+    """
+    Generate realistic feeding schedule for the last 14 days.
+
+    Newborns feed every 2-3 hours initially, gradually spacing out
+    to 3-4 hours.
+    """
+    feedings: list[dict] = []
+    current_time = reference_time - timedelta(days=CHILD_AGE_DAYS)
+    end_time = reference_time
+
+    feeding_types = ["left_breast", "right_breast", "bottle"]
+
+    # Day-by-day feeding patterns
+    day_number = 0
+    while current_time < end_time:
+        age_in_days = day_number
+
+        # Newborns feed more frequently
+        if age_in_days < 3:
+            interval_hours = random.uniform(2, 2.5)
+            duration_minutes = random.randint(15, 25)
+        elif age_in_days < 7:
+            interval_hours = random.uniform(2.5, 3)
+            duration_minutes = random.randint(20, 30)
+        else:
+            interval_hours = random.uniform(3, 3.5)
+            duration_minutes = random.randint(20, 35)
+
+        # Alternate between breasts and occasional bottle
+        if random.random() < 0.2:  # 20% bottle feeding
+            feeding_type = "bottle"
+        else:
+            # Alternate breasts
+            feeding_type = feeding_types[len(feedings) % 2]
+
+        start_time = current_time
+        end_time_feeding = start_time + timedelta(minutes=duration_minutes)
+
+        feedings.append(
+            {
+                "start_time": start_time,
+                "end_time": end_time_feeding,
+                "feeding_type": feeding_type,
+            }
+        )
+
+        current_time += timedelta(hours=interval_hours)
+
+        # Move to next day
+        prev_date = (current_time - timedelta(hours=interval_hours)).date()
+        if current_time.date() != prev_date:
+            day_number += 1
+
+    return feedings
+
+
+def get_diaper_changes(reference_time: datetime) -> list[dict]:
+    """
+    Generate realistic diaper changes for the last 14 days.
+
+    - First 2-3 days: Black/dark (meconium), minimal pee
+    - Days 3-5: Transition to yellow, more frequent
+    - Days 5+: Regular yellow stools, normal pee patterns
+    - 8-10 diaper changes per day initially, settling to 6-8
+    """
+    diapers = []
+    current_time = reference_time - timedelta(days=CHILD_AGE_DAYS)
+    end_time = reference_time
+
+    day_number = 0
+
+    while current_time < end_time:
+        age_in_days = day_number
+
+        # Determine number of diaper changes per day based on age
+        if age_in_days < 3:
+            changes_per_day = random.randint(8, 10)
+        elif age_in_days < 7:
+            changes_per_day = random.randint(7, 9)
+        else:
+            changes_per_day = random.randint(6, 8)
+
+        # Distribute changes throughout the day
+        day_start = current_time.replace(hour=0, minute=0, second=0, microsecond=0)
+        day_end = day_start + timedelta(days=1)
+
+        for _ in range(changes_per_day):
+            # Random time during the day
+            random_seconds = random.randint(0, 86400)
+            change_time = day_start + timedelta(seconds=random_seconds)
+
+            if change_time >= end_time:
+                break
+
+            # Determine diaper contents
+            has_poop = random.random() < 0.4  # 40% have poop
+            # 90% have pee, or always if no poop
+            has_pee = random.random() < 0.9 or not has_poop
+
+            diaper = {
+                "time": change_time,
+                "has_poop": has_poop,
+                "has_pee": has_pee,
+            }
+
+            # Poop characteristics based on age
+            if has_poop:
+                if age_in_days < 2:
+                    # Meconium phase
+                    diaper["poop_color"] = "black"
+                    diaper["poop_amount"] = "light"
+                elif age_in_days < 4:
+                    # Transition phase
+                    colors = ["black", "green", "yellow"]
+                    diaper["poop_color"] = random.choice(colors)
+                    amounts = ["light", "medium"]
+                    diaper["poop_amount"] = random.choice(amounts)
+                else:
+                    # Normal phase
+                    colors = ["yellow", "yellow", "yellow", "green"]
+                    diaper["poop_color"] = random.choice(colors)
+                    # Amount increases with age
+                    if age_in_days < 7:
+                        amounts = ["light", "medium"]
+                        diaper["poop_amount"] = random.choice(amounts)
+                    else:
+                        amounts = ["medium", "heavy"]
+                        diaper["poop_amount"] = random.choice(amounts)
+
+            # Pee characteristics based on age
+            if has_pee:
+                if age_in_days < 2:
+                    # Very light pee initially
+                    diaper["pee_amount"] = "light"
+                    diaper["pee_color"] = random.choice(["clear", "yellow"])
+                elif age_in_days < 5:
+                    # Increasing output
+                    diaper["pee_amount"] = random.choice(["light", "medium"])
+                    diaper["pee_color"] = random.choice(["clear", "yellow"])
+                else:
+                    # Normal output
+                    if age_in_days < 10:
+                        amounts = ["medium", "medium", "heavy"]
+                        diaper["pee_amount"] = random.choice(amounts)
+                    else:
+                        amounts = ["medium", "heavy", "heavy"]
+                        diaper["pee_amount"] = random.choice(amounts)
+                    colors = ["clear", "yellow", "yellow"]
+                    diaper["pee_color"] = random.choice(colors)
+
+            diapers.append(diaper)
+
+        day_number += 1
+        current_time = day_end
+
+    # Sort by time (type: ignore for mypy - we know time is datetime)
+    diapers.sort(
+        key=lambda x: x["time"]  # type: ignore[arg-type,return-value]
+    )
+    return diapers
+
+
+def get_sleep_sessions(reference_time: datetime) -> list[dict]:
+    """
+    Generate realistic sleep patterns for the last 14 days.
+
+    Newborns sleep 16-18 hours per day in short bursts (30min - 4 hours).
+    Sleep gradually consolidates over time.
+    """
+    sleep_sessions = []
+    current_time = reference_time - timedelta(days=CHILD_AGE_DAYS)
+    end_time = reference_time
+
+    day_number = 0
+
+    while current_time < end_time:
+        age_in_days = day_number
+
+        # Sleep patterns evolve with age
+        if age_in_days < 3:
+            # Very short, frequent naps
+            avg_wake_time = 1.5  # hours
+            sleep_duration_range = (30, 120)  # minutes
+        elif age_in_days < 7:
+            # Slightly longer sleep periods
+            avg_wake_time = 2
+            sleep_duration_range = (45, 180)
+        else:
+            # More consolidated sleep
+            avg_wake_time = 2.5
+            sleep_duration_range = (60, 240)
+
+        # Random wake time with variation
+        wake_minutes = random.randint(int(avg_wake_time * 45), int(avg_wake_time * 75))
+
+        # Sleep start time
+        start_time = current_time + timedelta(minutes=wake_minutes)
+
+        if start_time >= end_time:
+            break
+
+        # Sleep duration
+        duration_minutes = random.randint(*sleep_duration_range)
+
+        # Longer sleep at night
+        if 20 <= start_time.hour or start_time.hour < 6:
+            duration_minutes = int(duration_minutes * 1.3)
+
+        end_time_sleep = start_time + timedelta(minutes=duration_minutes)
+
+        sleep_sessions.append(
+            {
+                "start_time": start_time,
+                "end_time": end_time_sleep,
+            }
+        )
+
+        current_time = end_time_sleep
+        birth_time = reference_time - timedelta(days=CHILD_AGE_DAYS)
+        day_number = (current_time - birth_time).days
+
+    return sleep_sessions
+
+
+def generate_showcase_data(reference_time: datetime | None = None) -> dict:
+    """
+    Generate all test data with timestamps relative to reference time.
+
+    Args:
+        reference_time: The "now" time to use as reference.
+            Defaults to current time.
+
+    Returns:
+        Dictionary containing all test data
+    """
+    if reference_time is None:
+        reference_time = datetime.now()
+
+    return {
+        "users": SHOWCASE_USERS,
+        "child": get_child_data(reference_time),
+        "feedings": get_feeding_schedule(reference_time),
+        "diapers": get_diaper_changes(reference_time),
+        "sleep": get_sleep_sessions(reference_time),
+        "reference_time": reference_time,
+    }

src/baby_monitor/repositories/dependencies/get_token_repository.py

@@ -6,7 +6,7 @@ import logging
 from baby_monitor.repositories.interfaces import (
     TokenRepositoryInterface,
 )
-from baby_monitor.repositories.token.memory_token import (
+from baby_monitor.repositories.token import (
     InMemoryTokenRepository,
 )
 
@@ -43,7 +43,7 @@ def _initialize_token_repository() -> TokenRepositoryInterface:
         ) from e
 
     try:
-        from baby_monitor.repositories.token.redis_token import (
+        from baby_monitor.repositories.token import (
             RedisTokenRepository,
         )
 

src/baby_monitor/repositories/token/__init__.py

@@ -0,0 +1,11 @@
+"""Token repository implementations and configurations."""
+
+from .default_ttl import DEFAULT_TTL
+from .memory_token import InMemoryTokenRepository
+from .redis_token import RedisTokenRepository
+
+__all__ = [
+    "DEFAULT_TTL",
+    "InMemoryTokenRepository",
+    "RedisTokenRepository",
+]

src/baby_monitor/repositories/token/default_ttl.py

@@ -0,0 +1,3 @@
+"""Definition of Token default TTL."""
+
+DEFAULT_TTL = 28800  # seconds -> 8 hours

src/baby_monitor/repositories/token/memory_token.py

@@ -3,6 +3,7 @@
 from datetime import datetime, timedelta, UTC
 
 from baby_monitor.repositories.interfaces import TokenRepositoryInterface
+from baby_monitor.repositories.token import DEFAULT_TTL
 
 
 class InMemoryTokenRepository(TokenRepositoryInterface):
@@ -16,9 +17,8 @@ class InMemoryTokenRepository(TokenRepositoryInterface):
     def __init__(self) -> None:
         # token -> (user_id, expiry_time)
         self._tokens: dict[str, tuple[int, datetime]] = {}
-        self._default_ttl = 3600  # Store default TTL for sliding expiration
 
-    def store(self, token: str, user_id: int, ttl: int = 3600) -> None:
+    def store(self, token: str, user_id: int, ttl: int = DEFAULT_TTL) -> None:
         """Store a token with TTL (time to live in seconds)."""
         expiry = datetime.now(UTC) + timedelta(seconds=ttl)
         self._tokens[token] = (user_id, expiry)
@@ -39,7 +39,7 @@ class InMemoryTokenRepository(TokenRepositoryInterface):
             return None
 
         # Sliding expiration: extend the token lifetime
-        new_expiry = datetime.now(UTC) + timedelta(seconds=self._default_ttl)
+        new_expiry = datetime.now(UTC) + timedelta(seconds=DEFAULT_TTL)
         self._tokens[token] = (user_id, new_expiry)
 
         return user_id

src/baby_monitor/repositories/token/redis_token.py

@@ -3,14 +3,14 @@
 from typing import Any
 
 from baby_monitor.repositories.interfaces import TokenRepositoryInterface
+from baby_monitor.repositories.token import DEFAULT_TTL
 
 
 class RedisTokenRepository(TokenRepositoryInterface):
     """
     Redis-based token storage.
 
-    Requires redis package: pip install redis
-    Set REDIS_URI environment variable (e.g., redis://localhost:6379/0)
+    This implementation uses Redis to store tokens with TTL. Implements sliding expiration.
     """
 
     def __init__(self, redis_client: Any) -> None:
@@ -21,9 +21,8 @@ class RedisTokenRepository(TokenRepositoryInterface):
             redis_client: Redis client instance from redis.from_url()
         """
         self.redis = redis_client
-        self.default_ttl = 3600  # Store default TTL for sliding expiration
 
-    def store(self, token: str, user_id: int, ttl: int = 3600) -> None:
+    def store(self, token: str, user_id: int, ttl: int = DEFAULT_TTL) -> None:
         """Store a token with TTL (time to live in seconds)."""
         key = f"token:{token}"
         self.redis.setex(key, ttl, str(user_id))
@@ -37,7 +36,7 @@ class RedisTokenRepository(TokenRepositoryInterface):
         user_id_str = self.redis.get(key)
         if user_id_str:
             # Sliding expiration: extend the token lifetime
-            self.redis.expire(key, self.default_ttl)
+            self.redis.expire(key, DEFAULT_TTL)
             return int(user_id_str)
         return None
 

src/baby_monitor/static/admin.html

@@ -506,8 +506,8 @@
                 ID: ${user.id} • Created: ${new Date(user.created_at).toLocaleDateString()}
               </div>
             </div>
-            <button 
-              class="delete-user-btn" 
+            <button
+              class="delete-user-btn"
               onclick="showDeleteModal(${user.id}, '${user.username}', ${user.is_admin})"
               ${user.is_admin ? 'disabled title="Cannot delete admin users"' : ""}
             >

src/baby_monitor/static/diapers.html

@@ -281,6 +281,9 @@
       let currentDaysRange =
         parseInt(localStorage.getItem("lastDiaperTimeRange")) || 7;
       let selectedChildId = null; // null means show first/only child
+      let barChartInstance = null; // Track chart instance for proper cleanup
+      let poopPieChartInstance = null;
+      let peePieChartInstance = null;
 
       // Restore last selected child from localStorage
       const lastChildId = localStorage.getItem("lastDiaperChildFilter");
@@ -782,7 +785,12 @@
       function renderBarChart(chartData) {
         const ctx = document.getElementById("diaperChart").getContext("2d");
 
-        new Chart(ctx, {
+        // Destroy existing chart instance if it exists
+        if (barChartInstance) {
+          barChartInstance.destroy();
+        }
+
+        barChartInstance = new Chart(ctx, {
           type: "bar",
           data: {
             labels: chartData.labels,
@@ -875,6 +883,11 @@
       function renderPoopPieChart(chartData) {
         const ctx = document.getElementById("poopPieChart").getContext("2d");
 
+        // Destroy existing chart instance if it exists
+        if (poopPieChartInstance) {
+          poopPieChartInstance.destroy();
+        }
+
         const colors = {
           Light: {
             bg: "rgba(139, 69, 19, 0.5)",
@@ -901,7 +914,7 @@
           (label) => colors[label]?.border || "rgba(200, 200, 200, 1)",
         );
 
-        new Chart(ctx, {
+        poopPieChartInstance = new Chart(ctx, {
           type: "pie",
           data: {
             labels: chartData.labels,
@@ -957,6 +970,11 @@
       function renderPeePieChart(chartData) {
         const ctx = document.getElementById("peePieChart").getContext("2d");
 
+        // Destroy existing chart instance if it exists
+        if (peePieChartInstance) {
+          peePieChartInstance.destroy();
+        }
+
         const colors = {
           Light: {
             bg: "rgba(255, 215, 0, 0.5)",
@@ -983,7 +1001,7 @@
           (label) => colors[label]?.border || "rgba(200, 200, 200, 1)",
         );
 
-        new Chart(ctx, {
+        peePieChartInstance = new Chart(ctx, {
           type: "pie",
           data: {
             labels: chartData.labels,

src/baby_monitor/static/feedings.html

@@ -319,6 +319,8 @@
         parseInt(localStorage.getItem("lastFeedingTimeRange")) || 7;
       let selectedChildId = null; // null means show first/only child
       let barChartInstance = null;
+      let pieChartInstance = null;
+      let durationChartInstance = null;
 
       // Restore last selected child from localStorage
       const lastChildId = localStorage.getItem("lastFeedingChildFilter");
@@ -979,6 +981,11 @@
       function renderPieChart(chartData) {
         const ctx = document.getElementById("pieChart").getContext("2d");
 
+        // Destroy existing chart instance if it exists
+        if (pieChartInstance) {
+          pieChartInstance.destroy();
+        }
+
         // Color mapping for each type
         const colorMap = {
           "Left Breast": {
@@ -1003,7 +1010,7 @@
           (label) => colorMap[label]?.border || "rgba(200, 200, 200, 1)",
         );
 
-        new Chart(ctx, {
+        pieChartInstance = new Chart(ctx, {
           type: "pie",
           data: {
             labels: chartData.labels,
@@ -1059,7 +1066,12 @@
       function renderDurationChart(chartData) {
         const ctx = document.getElementById("durationChart").getContext("2d");
 
-        new Chart(ctx, {
+        // Destroy existing chart instance if it exists
+        if (durationChartInstance) {
+          durationChartInstance.destroy();
+        }
+
+        durationChartInstance = new Chart(ctx, {
           type: "bar",
           data: {
             labels: chartData.labels,

src/baby_monitor/static/index.html

@@ -167,6 +167,52 @@
         margin-top: 0.5rem;
         opacity: 0.9;
       }
+      .recent-activity {
+        margin-top: 2rem;
+        padding: 1.5rem;
+        background: #f8f9fa;
+        border-radius: 8px;
+      }
+      .recent-activity h3 {
+        margin-top: 0;
+        margin-bottom: 1rem;
+        color: #333;
+        font-size: 1.1rem;
+      }
+      .activity-grid {
+        display: flex;
+        flex-direction: column;
+        gap: 1rem;
+      }
+      .activity-card {
+        background: white;
+        padding: 1rem;
+        border-radius: 6px;
+        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+      }
+      .activity-card .icon {
+        font-size: 1.5rem;
+        margin-bottom: 0.5rem;
+      }
+      .activity-card .type {
+        font-weight: 600;
+        color: #333;
+        margin-bottom: 0.25rem;
+      }
+      .activity-card .time {
+        font-size: 0.85rem;
+        color: #666;
+      }
+      .activity-card .details {
+        font-size: 0.85rem;
+        color: #888;
+        margin-top: 0.5rem;
+      }
+      .activity-card.empty {
+        opacity: 0.5;
+        font-style: italic;
+        color: #999;
+      }
     </style>
   </head>
   <body>
@@ -321,6 +367,7 @@
       let activeSleep = null;
       let lastSleep = null;
       let sleepUpdateTimerInterval = null;
+      let lastDiaperChange = null;
 
       async function loadFeedingStatus(children) {
         userChildren = children;
@@ -337,8 +384,8 @@
             activeFeeding = await activeResponse.json();
           }
 
-          // Fetch all feedings to get the last one
-          const feedingsResponse = await fetch("/api/feedings", {
+          // Fetch the 10 most recent feedings to calculate the most recent session
+          const feedingsResponse = await fetch("/api/feedings?limit=10", {
             headers: {
               Authorization: `Bearer ${token}`,
             },
@@ -347,8 +394,68 @@
           if (feedingsResponse.ok) {
             const feedings = await feedingsResponse.json();
             if (feedings.length > 0) {
-              // Feedings are ordered by start_time desc, so first is most recent
-              lastFeeding = feedings[0];
+              // Calculate the most recent feeding session
+              let sessionStart = feedings[0].start_time;
+              let sessionEnd = feedings[0].end_time || feedings[0].start_time;
+              let sessionChildId = feedings[0].child_id;
+              let sessionEntries = [feedings[0]];
+
+              for (let i = 1; i < feedings.length; i++) {
+                const entry = feedings[i];
+                // Only group entries for the same child (ignore feeding type)
+                if (entry.child_id !== sessionChildId) {
+                  break;
+                }
+                // If the gap between this entry's end_time and current sessionStart is more than 30 min, stop
+                const prevEnd = entry.end_time || entry.start_time;
+                const sessionStartDate = new Date(sessionStart);
+                const prevEndDate = new Date(prevEnd);
+                const diffMins = Math.abs(
+                  (sessionStartDate - prevEndDate) / 60000,
+                );
+                if (diffMins > 30) {
+                  break;
+                }
+                // Extend session to include this entry
+                sessionStart = entry.start_time;
+                sessionEntries.push(entry);
+              }
+
+              // Calculate accumulated feeding time for all events in the session
+              let accumulatedMinutes = 0;
+              sessionEntries.forEach((entry) => {
+                if (entry.end_time && entry.start_time) {
+                  const start = new Date(entry.start_time);
+                  const end = new Date(entry.end_time);
+                  const diffMs = end - start;
+                  if (diffMs > 0) {
+                    accumulatedMinutes += Math.floor(diffMs / 60000);
+                  }
+                }
+              });
+
+              // Build a string showing all feeding types used during the session
+              const feedingTypesSet = new Set();
+              sessionEntries.forEach((entry) => {
+                if (entry.feeding_type) {
+                  feedingTypesSet.add(entry.feeding_type);
+                }
+              });
+              const feedingTypesString = Array.from(feedingTypesSet)
+                .map(formatFeedingType)
+                .join(", ");
+
+              // Compose a session object
+              lastFeeding = {
+                child_id: sessionChildId,
+                feeding_type: feedings[0].feeding_type,
+                start_time: sessionStart,
+                end_time: sessionEnd,
+                entries: sessionEntries,
+                child_name: feedings[0].child_name,
+                accumulated_minutes: accumulatedMinutes,
+                feeding_types_string: feedingTypesString,
+              };
             }
           }
 
@@ -376,6 +483,20 @@
               lastSleep = sleeps[0];
             }
           }
+
+          // Fetch all diaper changes to get the last one
+          const diaperResponse = await fetch("/api/diaper-changes", {
+            headers: {
+              Authorization: `Bearer ${token}`,
+            },
+          });
+
+          if (diaperResponse.ok) {
+            const diapers = await diaperResponse.json();
+            if (diapers.length > 0) {
+              lastDiaperChange = diapers[0];
+            }
+          }
         } catch (error) {
           console.error("Error loading feeding status:", error);
         }
@@ -449,7 +570,7 @@
             </button>
           `
           : `
-            <button class="feeding-button" onclick="showStartFeedingModal()">
+            <button class="feeding-button" onclick="window.location.href='/log-feeding.html'">
               🍼 Started Feeding
             </button>
           `;
@@ -478,9 +599,100 @@
           </button>
           ${feedingButtonHtml}
           ${sleepButtonHtml}
+          ${buildRecentActivitySection()}
         `;
       }
 
+      function buildRecentActivitySection() {
+        // Build diaper card
+        const diaperCard = lastDiaperChange
+          ? `
+            <a href="/diapers.html" class="activity-card" style="text-decoration:none; color:inherit;">
+              <div class="icon">🧷</div>
+              <div class="type">Last Diaper</div>
+              <div class="time">${formatTime(lastDiaperChange.change_time)}</div>
+              <div class="details">
+                ${lastDiaperChange.poop_amount ? `💩 ${lastDiaperChange.poop_amount}` : ""}
+                ${lastDiaperChange.poop_amount && lastDiaperChange.pee_amount ? " • " : ""}
+                ${lastDiaperChange.pee_amount ? `💧 ${lastDiaperChange.pee_amount}` : ""}
+              </div>
+            </a>
+          `
+          : `
+            <a href="/diapers.html" class="activity-card empty" style="text-decoration:none; color:inherit;">
+              <div class="icon">🧷</div>
+              <div class="type">No diaper changes yet</div>
+            </a>
+          `;
+
+        // Build feeding card
+        const feedingCard = lastFeeding
+          ? `
+            <a href="/feedings.html" class="activity-card" style="text-decoration:none; color:inherit;">
+              <div class="icon">🍼</div>
+              <div class="type">Last Feeding Session</div>
+              <div class="time">${formatTime(lastFeeding.start_time)}</div>
+              <div class="details">
+                ${lastFeeding.feeding_types_string ? `${lastFeeding.feeding_types_string}` : ""}
+                ${lastFeeding.feeding_types_string && lastFeeding.accumulated_minutes ? " • " : ""}
+                ${lastFeeding.accumulated_minutes} minutes total
+                ${lastFeeding.end_time ? "" : " (ongoing)"}
+              </div>
+            </a>
+          `
+          : `
+            <a href="/feedings.html" class="activity-card empty" style="text-decoration:none; color:inherit;">
+              <div class="icon">🍼</div>
+              <div class="type">No feedings yet</div>
+            </a>
+          `;
+
+        // Build sleep card
+        const sleepCard = lastSleep
+          ? `
+            <a href="/sleep.html" class="activity-card" style="text-decoration:none; color:inherit;">
+              <div class="icon">😴</div>
+              <div class="type">Last Sleep</div>
+              <div class="time">${formatTime(lastSleep.start_time)}</div>
+              <div class="details">
+                Duration: ${lastSleep.end_time ? calculateDuration(lastSleep.start_time, lastSleep.end_time) : "ongoing"}
+              </div>
+            </a>
+          `
+          : `
+            <a href="/sleep.html" class="activity-card empty" style="text-decoration:none; color:inherit;">
+              <div class="icon">😴</div>
+              <div class="type">No sleep sessions yet</div>
+            </a>
+          `;
+
+        return `
+          <div class="recent-activity">
+            <h3>📊 Recent Activity</h3>
+            <div class="activity-grid">
+              ${diaperCard}
+              ${feedingCard}
+              ${sleepCard}
+            </div>
+          </div>
+        `;
+      }
+
+      function calculateDuration(startTime, endTime) {
+        const start = new Date(startTime);
+        const end = new Date(endTime);
+        const diffMs = end - start;
+        const diffMins = Math.floor(diffMs / 60000);
+
+        if (diffMins < 60) {
+          return `${diffMins} min`;
+        }
+
+        const hours = Math.floor(diffMins / 60);
+        const mins = diffMins % 60;
+        return `${hours}h ${mins}m`;
+      }
+
       function formatFeedingType(type) {
         const types = {
           left_breast: "Left Breast",
@@ -652,42 +864,7 @@
       }
 
       function showStartSleepModal() {
-        const modal = document.getElementById("startSleepModal");
-        const childSelect = document.getElementById("modalSleepChildId");
-
-        // Clear and populate child select or show single child
-        if (userChildren.length === 1) {
-          // Single child: replace dropdown with text display
-          const child = userChildren[0];
-          const formGroup = childSelect.parentElement;
-          formGroup.innerHTML = `
-            <label for="modalSleepChildName">Child</label>
-            <input
-              type="text"
-              id="modalSleepChildName"
-              value="${child.name}"
-              readonly
-              style="background-color: #f5f5f5; cursor: default;"
-            />
-            <input type="hidden" id="modalSleepChildId" value="${child.id}" />
-          `;
-        } else {
-          // Multiple children: show dropdown
-          childSelect.innerHTML = '<option value="">Select a child</option>';
-          userChildren.forEach((child) => {
-            const option = document.createElement("option");
-            option.value = child.id;
-            option.textContent = child.name;
-            childSelect.appendChild(option);
-          });
-
-          // Set default based on last sleep
-          if (lastSleep) {
-            childSelect.value = lastSleep.child_id;
-          }
-        }
-
-        modal.classList.add("show");
+        window.location.href = "/log-sleep.html";
       }
 
       function closeStartSleepModal() {

src/baby_monitor/static/log-diaper.html

@@ -336,6 +336,29 @@
                     lastDiaperChange.child_id;
                 }
               }
+
+              // Prepopulate poop and pee fields from most recent entry
+              try {
+                const response = await fetch("/api/diaper-changes", {
+                  headers: { Authorization: `Bearer ${token}` },
+                });
+                if (response.ok) {
+                  const changes = await response.json();
+                  if (changes.length > 0) {
+                    const last = changes[0];
+                    document.getElementById("poopAmount").value =
+                      last.poop_amount || "";
+                    document.getElementById("poopColor").value =
+                      last.poop_color || "";
+                    document.getElementById("peeAmount").value =
+                      last.pee_amount || "";
+                    document.getElementById("peeColor").value =
+                      last.pee_color || "";
+                  }
+                }
+              } catch (error) {
+                // Ignore error, just use default
+              }
             }
           } else {
             showMessage("Failed to load children", "error");

src/baby_monitor/static/log-feeding.html

@@ -303,6 +303,22 @@
             // If editing, load the feeding data
             if (isEditMode) {
               loadFeedingData();
+            } else {
+              // Set default feeding type to most recent log entry
+              try {
+                const response = await fetch("/api/feedings", {
+                  headers: { Authorization: `Bearer ${token}` },
+                });
+                if (response.ok) {
+                  const feedings = await response.json();
+                  if (feedings.length > 0) {
+                    document.getElementById("feedingType").value =
+                      feedings[0].feeding_type;
+                  }
+                }
+              } catch (error) {
+                // Ignore error, just use default
+              }
             }
           } else {
             showMessage("Failed to load children", "error");

src/baby_monitor/static/sleep.html

@@ -345,13 +345,16 @@
         }
       }
 
-      document
-        .getElementById("timeRangeFilter")
-        .addEventListener("change", function () {
-          // Save selection to localStorage
-          localStorage.setItem("lastSleepTimeRange", this.value);
-          loadData();
-        });
+      function attachTimeRangeListener() {
+        const timeRangeFilter = document.getElementById("timeRangeFilter");
+        if (timeRangeFilter) {
+          timeRangeFilter.addEventListener("change", function () {
+            // Save selection to localStorage
+            localStorage.setItem("lastSleepTimeRange", this.value);
+            renderCharts();
+          });
+        }
+      }
 
       async function loadData() {
         try {
@@ -387,7 +390,7 @@
                 readonly
                 style="background-color: #f5f5f5; cursor: default; padding: 8px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px;"
               />
-              
+
               <label for="timeRangeFilter">Time Range:</label>
               <select id="timeRangeFilter">
                 <option value="1">Last 24 hours</option>
@@ -443,6 +446,9 @@
             attachChildFilterListener();
           }
 
+          // Always attach time range listener after recreating the controls
+          attachTimeRangeListener();
+
           renderCharts();
         } catch (error) {
           console.error("Error loading data:", error);
@@ -1098,6 +1104,9 @@
               </div>
               <div class="sleep-duration">${durationText}</div>
             </div>
+            <div class="sleep-actions">
+              <button class="edit-button" onclick="window.location.href='/log-sleep.html?id=${sleep.id}'">Edit</button>
+            </div>
           </div>
         `;
       }