#!/bin/bash
# Monitor ISO build progress - checks every 3 minutes

LOG_FILE="/tmp/knel-iso-build.log"
CHECK_INTERVAL=180  # 3 minutes

echo "=== ISO Build Monitor ==="
echo "Started: $(date)"
echo "Checking every ${CHECK_INTERVAL}s"
echo ""

while true; do
    if [ -f "$LOG_FILE" ]; then
        LINES=$(wc -l < "$LOG_FILE")
        LAST_STAGE=$(grep -E "^\[.*\] lb (bootstrap|chroot|installer|binary|source)" "$LOG_FILE" 2>/dev/null | tail -1)
        ERRORS=$(grep -ic "error\|failed\|fatal" "$LOG_FILE" 2>/dev/null || echo "0")

        echo "[$(date '+%H:%M:%S')] Lines: $LINES | Errors: $ERRORS"
        [ -n "$LAST_STAGE" ] && echo "  Stage: $LAST_STAGE"

        # Check if build completed
        if grep -q "lb build completed" "$LOG_FILE" 2>/dev/null; then
            echo ""
            echo "=== BUILD COMPLETED ==="
            echo "Finished: $(date)"
            ls -lh output/*.iso 2>/dev/null || echo "No ISO found in output/"
            break
        fi

        # Check if build failed
        if grep -q "lb build failed" "$LOG_FILE" 2>/dev/null; then
            echo ""
            echo "=== BUILD FAILED ==="
            echo "Check log: $LOG_FILE"
            tail -20 "$LOG_FILE"
            break
        fi
    else
        echo "[$(date '+%H:%M:%S')] Waiting for build log..."
    fi

    sleep $CHECK_INTERVAL
done