#!/bin/bash

# Script to clean up old Google Cloud Functions deployment files
BUCKET_NAME="gcf-v2-uploads-245796323861.us-central1.cloudfunctions.appspot.com"

echo "=== Google Cloud Functions Bucket Cleanup ==="
echo "Bucket: $BUCKET_NAME"
echo "Date: $(date)"
echo ""

# Check if gcloud is authenticated
if ! gcloud auth list --filter=status:ACTIVE --format="value(account)" | grep -q .; then
    echo "❌ Not authenticated with gcloud. Please run: gcloud auth login"
    exit 1
fi

echo "📊 Current bucket size:"
gsutil du -sh "gs://$BUCKET_NAME"

echo ""
echo "📋 Number of deployment files:"
gsutil ls "gs://$BUCKET_NAME" | wc -l

echo ""
echo "🔍 Recent deployments (last 5):"
echo "==============================="
gsutil ls -lh "gs://$BUCKET_NAME" | tail -5

echo ""
echo "⚠️  WARNING: This will delete old deployment files!"
echo "   Only recent deployments will be kept for safety."
echo ""
read -p "Do you want to proceed with cleanup? (y/N): " -n 1 -r
echo

if [[ ! $REPLY =~ ^[Yy]$ ]]; then
    echo "❌ Cleanup cancelled."
    exit 0
fi

echo ""
echo "🧹 Starting cleanup..."

# Get list of all files, sort by date (oldest first), and keep only the last 3
echo "📋 Files to be deleted:"
gsutil ls -l "gs://$BUCKET_NAME" | sort -k2 | head -n -3 | while read -r line; do
    if [[ $line =~ gs:// ]]; then
        filename=$(echo "$line" | awk '{print $NF}')
        echo "   Will delete: $filename"
    fi
done

echo ""
echo "🗑️  Deleting old files..."
# Delete all but the last 3 files
gsutil ls "gs://$BUCKET_NAME" | sort | head -n -3 | while read -r file; do
    echo "   Deleting: $file"
    gsutil rm "$file"
done

echo ""
echo "✅ Cleanup completed!"
echo ""
echo "📊 New bucket size:"
gsutil du -sh "gs://$BUCKET_NAME"

echo ""
echo "📋 Remaining files:"
gsutil ls -lh "gs://$BUCKET_NAME"