#!/bin/bash
set -euo pipefail

# --- Configuration -----------------------------------------------------------
# Provide your own values via environment variables or edit the defaults below.
BUCKET_NAME="${BUCKET_NAME:-lenssim-static-prod}"
CLOUDFRONT_ID="${CLOUDFRONT_ID:-EM92WLNGPGOVA}"
CLOUDFRONT_DOMAIN="${CLOUDFRONT_DOMAIN:-d3z407nghipey.cloudfront.net}"
AWS_REGION="${AWS_REGION:-eu-central-1}"

if [[ -z "${BUCKET_NAME}" ]]; then
  echo "❌ Please set BUCKET_NAME (env var or inside deploy.sh) before deploying." >&2
  exit 1
fi

if [[ "${CLOUDFRONT_ID}" == "YOUR_CLOUDFRONT_DIST_ID" || -z "${CLOUDFRONT_ID}" ]]; then
  echo "❌ Please set CLOUDFRONT_ID (env var or inside deploy.sh) before deploying." >&2
  exit 1
fi

echo "🚀 Building LensSim SPA..."
npm run build

echo "📦 Syncing hashed assets to s3://${BUCKET_NAME}..."
aws s3 sync dist/ s3://${BUCKET_NAME} \
  --delete \
  --exclude "index.html" \
  --cache-control "public, max-age=31536000, immutable"

echo "🗂  Uploading index.html with no-cache headers..."
aws s3 cp dist/index.html s3://${BUCKET_NAME}/index.html \
  --cache-control "no-cache, no-store, must-revalidate" \
  --content-type "text/html"

echo "🔄 Creating CloudFront invalidation for shell files..."
aws cloudfront create-invalidation \
  --distribution-id "${CLOUDFRONT_ID}" \
  --paths "/" "/index.html" \
  --output text > /dev/null

echo
echo "✅ Deployment finished."
echo "🌐 CloudFront URL: https://${CLOUDFRONT_DOMAIN}/"
echo "🪣  S3 Website (if enabled): http://${BUCKET_NAME}.s3-website.${AWS_REGION}.amazonaws.com/"
echo "⏱️  Note: CloudFront edge caches can take a few minutes to refresh."