KittyCam Time-lapse

upgrade-timelapse.sh

#!/bin/bash
# Kevin & Todd Cam - Time-lapse Feature
# Run on Pi

echo "🎬 Installing time-lapse feature..."

# Create directories
sudo mkdir -p /opt/kittycam/snapshots
sudo mkdir -p /opt/kittycam/timelapses
sudo chown andy:andy /opt/kittycam/snapshots /opt/kittycam/timelapses

# Snapshot capture script
sudo tee /opt/kittycam/capture_snapshot.sh > /dev/null << 'EOF'
#!/bin/bash
# Capture a snapshot for time-lapse

SNAP_DIR="/opt/kittycam/snapshots"
DATE=$(date +%Y%m%d)
TIME=$(date +%H%M%S)
FILENAME="${SNAP_DIR}/${DATE}_${TIME}.jpg"

# Grab frame from mjpg_streamer
curl -s "http://127.0.0.1:8081/?action=snapshot" -o "$FILENAME" 2>/dev/null

# Keep only last 2 days of snapshots (cleanup)
find "$SNAP_DIR" -name "*.jpg" -mtime +2 -delete 2>/dev/null
EOF

sudo chmod +x /opt/kittycam/capture_snapshot.sh

# Time-lapse generator script
sudo tee /opt/kittycam/generate_timelapse.sh > /dev/null << 'EOF'
#!/bin/bash
# Generate daily time-lapse from yesterday's snapshots

SNAP_DIR="/opt/kittycam/snapshots"
TL_DIR="/opt/kittycam/timelapses"
YESTERDAY=$(date -d "yesterday" +%Y%m%d)
OUTPUT="${TL_DIR}/timelapse_${YESTERDAY}.mp4"

# Check if we have snapshots from yesterday
SNAP_COUNT=$(ls -1 ${SNAP_DIR}/${YESTERDAY}_*.jpg 2>/dev/null | wc -l)

if [ "$SNAP_COUNT" -lt 10 ]; then
    echo "Not enough snapshots for yesterday ($SNAP_COUNT found)"
    exit 0
fi

echo "Generating time-lapse from $SNAP_COUNT snapshots..."

# Create file list
LISTFILE=$(mktemp)
ls -1 ${SNAP_DIR}/${YESTERDAY}_*.jpg | sort | while read f; do
    echo "file '$f'" >> "$LISTFILE"
done

# Generate time-lapse (10 fps, good quality but small)
ffmpeg -y -f concat -safe 0 -i "$LISTFILE" \
    -vf "scale=720:-2" \
    -c:v libx264 -preset fast -crf 28 \
    -movflags +faststart \
    "$OUTPUT" 2>/dev/null

rm -f "$LISTFILE"

# Keep only last 14 days of time-lapses
find "$TL_DIR" -name "timelapse_*.mp4" -mtime +14 -delete 2>/dev/null

if [ -f "$OUTPUT" ]; then
    echo "Created: $OUTPUT"
else
    echo "Failed to create time-lapse"
fi
EOF

sudo chmod +x /opt/kittycam/generate_timelapse.sh

# Add cron jobs
(crontab -l 2>/dev/null | grep -v capture_snapshot | grep -v generate_timelapse
echo "*/10 * * * * /opt/kittycam/capture_snapshot.sh"
echo "0 4 * * * /opt/kittycam/generate_timelapse.sh >> /var/log/kittycam_timelapse.log 2>&1"
) | crontab -

# Update nginx config to serve timelapses
sudo tee /etc/nginx/sites-enabled/kittycam > /dev/null << 'NGINXEOF'
server {
    listen 8080;
    server_name _;
    root /opt/kittycam/web;
    index index.html;

    proxy_buffering off;
    proxy_request_buffering off;

    location = /auth {
        if ($arg_key != "7jYVuk7F3cv0djjAQeNqURK8") { return 403; }
        return 200;
    }

    location /stream {
        proxy_pass http://127.0.0.1:8081/;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 3600s;
        proxy_send_timeout 3600s;
        chunked_transfer_encoding off;
        add_header Cache-Control "no-cache, no-store, must-revalidate";
        add_header Pragma "no-cache";
    }

    location = /api/events {
        alias /opt/kittycam/events.json;
        default_type application/json;
        add_header Cache-Control "no-cache";
    }

    location /api/gacha/ {
        proxy_pass http://127.0.0.1:8082;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        add_header Cache-Control "no-cache";
    }

    location = /api/log-view {
        proxy_pass http://127.0.0.1:8082;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
    }

    location = /api/views/today {
        proxy_pass http://127.0.0.1:8082;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
    }

    location /clips/ {
        alias /opt/kittycam/clips/;
        autoindex on;
        autoindex_format json;
        add_header Cache-Control "no-cache";
    }

    location /timelapses/ {
        alias /opt/kittycam/timelapses/;
        autoindex on;
        autoindex_format json;
        add_header Cache-Control "no-cache";
    }

    location /static/ {
        alias /opt/kittycam/web/static/;
        add_header Cache-Control "public, max-age=31536000";
    }

    location ~* (sw\.js|manifest\.json)$ {
        add_header Cache-Control "no-cache, no-store, must-revalidate";
    }

    location / {
        try_files $uri $uri/ =404;
        add_header Cache-Control "no-cache";
    }
}
NGINXEOF

sudo nginx -t && sudo systemctl reload nginx

# Take first snapshot now
/opt/kittycam/capture_snapshot.sh

echo "✅ Time-lapse installed!"
echo ""
echo "• Snapshots every 10 min: /opt/kittycam/snapshots/"
echo "• Daily time-lapse at 4am: /opt/kittycam/timelapses/"
echo "• Accessible at: /timelapses/"