#!/usr/bin/env bash
set -e

# Configuration with smart defaults (overridable via environment variables)
REGISTRY=${REGISTRY:-"quay.atyg.org"}
NAMESPACE=${NAMESPACE:-"library"}
IMAGE_NAME=${IMAGE_NAME:-"custom-nas-web"}
TAG=${TAG:-"latest"}

FULL_IMAGE_NAME="$REGISTRY/$NAMESPACE/$IMAGE_NAME:$TAG"

# Auto-detect container engine (podman or docker)
if command -v podman &> /dev/null; then
    ENGINE="podman"
elif command -v docker &> /dev/null; then
    ENGINE="docker"
else
    echo "❌ Error: Neither podman nor docker found in PATH."
    exit 1
fi

echo "🚀 Building image using $ENGINE..."
echo "📦 Target: $FULL_IMAGE_NAME"

# Build the image
$ENGINE build -t "$FULL_IMAGE_NAME" .

# Handle optional push flag
if [[ "$1" == "--push" || "$2" == "--push" ]]; then
    echo "☁️  Pushing to registry..."
    $ENGINE push "$FULL_IMAGE_NAME"
    echo "✅ Push complete!"
else
    echo "✅ Build complete!"
    echo "💡 Tip: To build and push in one step, run: ./build.sh --push"
fi