#!/bin/bash

# TimeSafari Daily Migration Summary
# Usage: ./daily-migration-summary.sh

LOG_FILE="migration-times.log"
TODAY=$(date +"%Y-%m-%d")

echo "📊 Daily Migration Summary - $TODAY"
echo "=================================="

if [ ! -f "$LOG_FILE" ]; then
    echo "❌ No migration log found. Start tracking with ./time-migration.sh"
    exit 1
fi

# Count components completed today
COMPLETED_TODAY=$(grep "^.*,$TODAY" "$LOG_FILE" | grep -v ",,,," | wc -l)
TOTAL_TIME=$(grep "^.*,$TODAY" "$LOG_FILE" | grep -v ",,,," | cut -d',' -f4 | awk '{sum+=$1} END {print sum}')

if [ "$COMPLETED_TODAY" -eq 0 ]; then
    echo "No components completed today"
    exit 0
fi

# Calculate average time
AVG_TIME=$(echo "scale=1; $TOTAL_TIME / $COMPLETED_TODAY" | bc -l)

echo "Components completed today: $COMPLETED_TODAY"
echo "Total time spent: $TOTAL_TIME minutes"
echo "Average time per component: $AVG_TIME minutes"
echo

# Show today's completions
echo "Today's Completions:"
echo "==================="
grep "^.*,$TODAY" "$LOG_FILE" | grep -v ",,,," | while IFS=',' read -r component start end duration complexity issues commit; do
    echo "✅ $component ($duration minutes) - $commit"
done

echo

# Show overall progress
TOTAL_COMPLETED=$(grep -v "Component,Start Time" "$LOG_FILE" | grep -v ",,,," | wc -l)
REMAINING=$((92 - TOTAL_COMPLETED))

echo "Overall Progress:"
echo "=================="
echo "Total components: 92"
echo "Completed: $TOTAL_COMPLETED"
echo "Remaining: $REMAINING"
echo "Progress: $(echo "scale=1; $TOTAL_COMPLETED * 100 / 92" | bc -l)%"

# Estimate completion time
if [ "$TOTAL_COMPLETED" -gt 0 ]; then
    OVERALL_AVG=$(grep -v "Component,Start Time" "$LOG_FILE" | grep -v ",,,," | cut -d',' -f4 | awk '{sum+=$1} END {print sum/'$TOTAL_COMPLETED'}')
    ESTIMATED_HOURS=$(echo "scale=1; $REMAINING * $OVERALL_AVG / 60" | bc -l)
    echo "Estimated remaining time: $ESTIMATED_HOURS hours"
fi