#!/bin/bash

set -e

echo "========================================="
echo "Building Angular for Air-Gapped Deployment"
echo "========================================="
echo ""

# Check if we're in the right directory
if [ ! -f "docker-compose.yml" ]; then
    echo "Error: Must run from project root directory"
    exit 1
fi

# Check if node is installed
if ! command -v node &> /dev/null; then
    echo "Error: Node.js is not installed. Please install Node.js 18+ first."
    exit 1
fi

# Check if npm is installed
if ! command -v npm &> /dev/null; then
    echo "Error: npm is not installed. Please install npm first."
    exit 1
fi

echo "Step 1/3: Installing dependencies..."
cd frontend
npm install

echo ""
echo "Step 2/3: Building Angular production bundle..."
npm run build:prod

echo ""
echo "Step 3/3: Verifying build output..."
if [ -d "dist/frontend/browser" ]; then
    echo "✓ Build successful!"
    echo "✓ Output: frontend/dist/frontend/browser"
    ls -lh dist/frontend/browser | head -5
else
    echo "✗ Build failed - output directory not found"
    exit 1
fi

cd ..

echo ""
echo "========================================="
echo "Build Complete!"
echo "========================================="
echo ""
echo "Next steps:"
echo "1. Update docker-compose.yml:"
echo "   Change: dockerfile: Dockerfile.frontend"
echo "   To:     dockerfile: Dockerfile.frontend.prebuilt"
echo ""
echo "2. Deploy:"
echo "   docker-compose up -d --build"
echo ""
echo "See DEPLOYMENT.md for more details."
echo "========================================="