#!/bin/bash

# SPORE Multiarch Build Setup Script
# This script sets up Docker buildx for multiarch image building

set -e

echo "🚀 SPORE Multiarch Build Setup"
echo "================================"
echo ""

# Check if buildx is installed
if ! command -v docker &> /dev/null; then
    echo "❌ Docker is not installed. Please install Docker first."
    exit 1
fi

echo "✅ Docker is installed"

# Install QEMU emulation for cross-architecture builds
echo ""
echo "📦 Installing QEMU emulation..."
docker run --rm --privileged tonistiigi/binfmt:latest --install all

echo "✅ QEMU emulation installed"

# Check if multiarch builder already exists
EXISTING_BUILDER=$(docker buildx ls --format '{{.Name}}' | grep -w multiarch || true)

if [ -z "$EXISTING_BUILDER" ]; then
    echo ""
    echo "📦 Creating multiarch builder..."
    docker buildx create --name multiarch --use
    echo "✅ Multiarch builder created"
else
    echo ""
    echo "✅ Multiarch builder already exists"
    echo "📦 Switching to multiarch builder..."
    docker buildx use multiarch
fi

echo ""
echo "🔧 Inspecting builder..."
docker buildx inspect --bootstrap

echo ""
echo "✅ Multiarch build setup complete!"
echo ""
echo "Available platforms:"
docker buildx inspect --bootstrap | grep "Platform:"

echo ""
echo "📚 Usage:"
echo "  Build and push all multiarch images:"
echo "    cd spore-deployment"
echo "    make push-multiarch"
echo ""
echo "  Build without pushing:"
echo "    make build-multiarch"
echo ""
echo "  Build with custom tag:"
echo "    make push-multiarch IMAGE_TAG=v1.0.0"
echo ""