#!/bin/sh

# Usage: ./scripts/build-images.sh [version]

set -e

get_latest_version() {
  # Get the latest version tag from podman images for pb-backend or pb-frontend
  podman images --format '{{.Repository}}:{{.Tag}}' | \
    grep -E 'pb-(backend|frontend):v[0-9]+\.[0-9]+\.[0-9]+' | \
    sed -E 's/.*:(v[0-9]+\.[0-9]+\.[0-9]+)$/\1/' | \
    sort -V | tail -n 1
}

increment_minor_version() {
  # Takes a version string like v1.2.3 and increments the minor version
  local version=$1
  local major_minor_patch=$(echo $version | sed -E 's/v([0-9]+)\.([0-9]+)\.([0-9]+)/\1 \2 \3/')
  set -- $major_minor_patch
  local major=$1
  local minor=$2
  local patch=$3
  minor=$((minor + 1))
  echo "v${major}.${minor}.0"
}

if [ -z "$1" ]; then
  LATEST=$(get_latest_version)
  if [ -z "$LATEST" ]; then
    VERSION="v1.0.0"
  else
    VERSION=$(increment_minor_version $LATEST)
  fi
  echo "No version argument provided. Using auto-incremented version: $VERSION"
else
  VERSION=$1
fi

# Build backend image
echo "Building backend image..."
podman build --platform=linux/arm64 -t pb-backend:$VERSION ./backend

echo "Building frontend image..."
podman build --platform=linux/arm64 -t pb-frontend:$VERSION ./frontend

echo "\nBuild complete. Images:"
echo "  pb-backend:$VERSION"
echo "  pb-frontend:$VERSION" 

echo "\nSaving images to tar files:"
podman image save -o frontend.tar pb-frontend:$VERSION
podman image save -o backend.tar pb-backend:$VERSION