#!/bin/bash
# Build CI Docker Image on Production Server
# This script builds the php-ci image and loads it into docker-dind
# Usage: ./build-ci-image-production.sh

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"

# PHP CI Image
PHP_CI_IMAGE="${CI_IMAGE_NAME:-php-ci:latest}"
REGISTRY="${CI_REGISTRY:-registry.michaelschiemer.de}"
PHP_CI_REGISTRY_IMAGE="${REGISTRY}/ci/php-ci:latest"

# Docker Build Image
DOCKER_BUILD_IMAGE="${DOCKER_BUILD_IMAGE_NAME:-docker-build:latest}"
DOCKER_BUILD_REGISTRY_IMAGE="${REGISTRY}/ci/docker-build:latest"

echo "🔨 Building CI Docker Images on Production Server..."
echo ""
echo "1. PHP CI Image: ${PHP_CI_IMAGE}"
echo "   Dockerfile: ${PROJECT_ROOT}/docker/ci/Dockerfile"
echo ""
echo "2. Docker Build Image: ${DOCKER_BUILD_IMAGE}"
echo "   Dockerfile: ${PROJECT_ROOT}/docker/ci/Dockerfile.build"
echo ""

cd "$PROJECT_ROOT"

# Check if docker-dind is running
if ! docker ps | grep -q "gitea-runner-dind"; then
    echo "⚠️  Warning: gitea-runner-dind container not found"
    echo "   Make sure the Gitea runner stack is running:"
    echo "   cd ${SCRIPT_DIR} && docker compose up -d"
    echo ""
    read -p "Continue anyway? (y/N) " -n 1 -r
    echo
    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
        exit 1
    fi
fi

# Build PHP CI image
echo ""
echo "📦 Building PHP CI image..."
docker build \
  -f docker/ci/Dockerfile \
  -t "${PHP_CI_IMAGE}" \
  -t "${PHP_CI_REGISTRY_IMAGE}" \
  --platform linux/amd64 \
  .

# Build Docker Build image
echo ""
echo "📦 Building Docker Build image..."
docker build \
  -f docker/ci/Dockerfile.build \
  -t "${DOCKER_BUILD_IMAGE}" \
  -t "${DOCKER_BUILD_REGISTRY_IMAGE}" \
  --platform linux/amd64 \
  .

echo ""
echo "✅ Images built successfully!"
echo ""

# Load images into docker-dind
if docker ps | grep -q "gitea-runner-dind"; then
    echo "📥 Loading images into docker-dind..."
    
    echo "   Loading php-ci:latest..."
    docker save "${PHP_CI_IMAGE}" | docker exec -i gitea-runner-dind docker load
    
    echo "   Loading docker-build:latest..."
    docker save "${DOCKER_BUILD_IMAGE}" | docker exec -i gitea-runner-dind docker load
    
    echo ""
    echo "✅ Images loaded into docker-dind"
else
    echo "⚠️  docker-dind container not running - skipping image load"
    echo "   To load images later, run:"
    echo "   docker save ${PHP_CI_IMAGE} | docker exec -i gitea-runner-dind docker load"
    echo "   docker save ${DOCKER_BUILD_IMAGE} | docker exec -i gitea-runner-dind docker load"
fi

echo ""
echo "📋 Summary:"
echo ""
echo "✅ Built images:"
echo "   - ${PHP_CI_IMAGE}"
echo "   - ${DOCKER_BUILD_IMAGE}"
echo ""

# Check if .env exists and show label configuration
if [ -f "${SCRIPT_DIR}/.env" ]; then
    echo "📝 Current GITEA_RUNNER_LABELS in .env:"
    grep "^GITEA_RUNNER_LABELS=" "${SCRIPT_DIR}/.env" || echo "   (not found)"
    echo ""
    echo "💡 Make sure your .env contains:"
    echo "   GITEA_RUNNER_LABELS=...,php-ci:docker://${PHP_CI_IMAGE}"
    echo ""
    echo "   Or for registry images:"
    echo "   GITEA_RUNNER_LABELS=...,php-ci:docker://${PHP_CI_REGISTRY_IMAGE}"
else
    echo "⚠️  .env file not found at ${SCRIPT_DIR}/.env"
    echo "   Create it from .env.example and add php-ci label"
fi

echo ""
echo "✅ Setup complete! The php-ci image is now available for Gitea workflows."
echo ""
echo "📝 Next steps (if needed):"
echo "   1. Verify runner labels in Gitea UI"
echo "   2. Test a workflow with runs-on: php-ci"
echo ""