#!/bin/bash
# Entrypoint script for YouTube Sync Docker container

set -e

echo "=========================================="
echo "YouTube Channel Sync Docker"
echo "=========================================="
echo "Download Directory: $DOWNLOAD_DIR"
echo "Config Directory: $CONFIG_DIR"

# settings.json (managed via the web UI) overrides the env-var defaults
# baked into the image / docker-compose. Same hierarchy as app.py:get_settings().
SETTINGS_FILE="${CONFIG_DIR}/settings.json"
if [ -f "$SETTINGS_FILE" ]; then
    if VAL=$(jq -er '.sync_schedule // empty' "$SETTINGS_FILE" 2>/dev/null); then
        SYNC_SCHEDULE="$VAL"
    fi
fi

echo "Sync Schedule: $SYNC_SCHEDULE"
echo "Max Quality: ${MAX_QUALITY}p"
echo "Sleep Interval: ${SLEEP_INTERVAL}s"
echo "Timezone: $TZ"
echo "Web UI: http://localhost:8080"
echo "=========================================="

# Create example channels file if it doesn't exist
if [ ! -f "$CONFIG_DIR/channels.txt" ]; then
    echo "[INFO] Creating example channels.txt..."
    cat > "$CONFIG_DIR/channels.txt" << 'EOF'
# YouTube Channel Configuration
# Format: CHANNEL_ID|Channel Name
# One channel per line. Lines starting with # are ignored.
#
# Examples:
# UCfDNi1aEljAQ17mUrfUjkvg|Alton Brown
# UCoq2qlWgvvKJzW_hBkLIE8w|Flavour Trip
#
# To find a channel ID:
# 1. Go to the channel's main page
# 2. View page source (Ctrl+U or Cmd+U)
# 3. Search for "channelId" or look in the URL
EOF
fi

# Create log file
touch /var/log/youtube-sync.log

# Set up cron job if SYNC_SCHEDULE is provided
if [ "$SYNC_SCHEDULE" != "manual" ]; then
    echo "[INFO] Setting up cron schedule: $SYNC_SCHEDULE"
    echo "$SYNC_SCHEDULE /app/sync.sh >> /var/log/youtube-sync.log 2>&1" > /etc/crontabs/root

    # Start crond in the background
    crond -f -l 2 &
    CRON_PID=$!
    # Record PID so the Flask UI can SIGHUP crond when the schedule changes.
    echo "$CRON_PID" > /var/run/crond.pid
    echo "[INFO] Cron daemon started (PID: $CRON_PID)"
else
    echo "[INFO] Manual mode enabled. Use Web UI to trigger syncs."
fi

# Start Flask web UI
echo "[INFO] Starting web UI on port 8080..."
cd /app
exec python3 app.py