#!/bin/bash

# VIP Coordinator Quick Deploy Script
# This script helps you deploy the VIP Coordinator application using Docker

set -e

echo "🚀 VIP Coordinator Deployment Script"
echo "===================================="

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

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

# Check if .env file exists
if [ ! -f ".env" ]; then
    echo "⚠️  No .env file found. Creating one from .env.example..."
    if [ -f ".env.example" ]; then
        cp .env.example .env
        echo "✅ Created .env file from .env.example"
        echo ""
        echo "🔧 IMPORTANT: Please edit the .env file and update the following:"
        echo "   - POSTGRES_PASSWORD (set a secure password)"
        echo "   - GOOGLE_CLIENT_ID (from Google Cloud Console)"
        echo "   - GOOGLE_CLIENT_SECRET (from Google Cloud Console)"
        echo "   - VITE_API_URL (your backend URL)"
        echo "   - VITE_FRONTEND_URL (your frontend URL)"
        echo ""
        echo "📖 For Google OAuth setup instructions, see:"
        echo "   https://console.cloud.google.com/"
        echo ""
        read -p "Press Enter after updating the .env file to continue..."
    else
        echo "❌ .env.example file not found. Please create a .env file manually."
        exit 1
    fi
fi

# Validate required environment variables
echo "🔍 Validating environment configuration..."

# Source the .env file
set -a
source .env
set +a

# Check required variables
REQUIRED_VARS=("POSTGRES_PASSWORD" "GOOGLE_CLIENT_ID" "GOOGLE_CLIENT_SECRET")
MISSING_VARS=()

for var in "${REQUIRED_VARS[@]}"; do
    if [ -z "${!var}" ] || [ "${!var}" = "your_secure_password_here" ] || [ "${!var}" = "your_google_client_id_here" ] || [ "${!var}" = "your_google_client_secret_here" ]; then
        MISSING_VARS+=("$var")
    fi
done

if [ ${#MISSING_VARS[@]} -ne 0 ]; then
    echo "❌ The following required environment variables are missing or have default values:"
    for var in "${MISSING_VARS[@]}"; do
        echo "   - $var"
    done
    echo ""
    echo "Please update your .env file with the correct values."
    exit 1
fi

echo "✅ Environment configuration looks good!"

# Pull the latest images
echo ""
echo "📥 Pulling latest Docker images..."
docker pull t72chevy/vip-coordinator:backend-latest
docker pull t72chevy/vip-coordinator:frontend-latest

# Stop existing containers if running
echo ""
echo "🛑 Stopping existing containers (if any)..."
docker-compose down --remove-orphans || true

# Start the application
echo ""
echo "🚀 Starting VIP Coordinator application..."
docker-compose up -d

# Wait for services to be healthy
echo ""
echo "⏳ Waiting for services to start..."
sleep 10

# Check service status
echo ""
echo "📊 Service Status:"
docker-compose ps

# Check if services are healthy
echo ""
echo "🏥 Health Checks:"

# Check backend health
if curl -f -s http://localhost:3000/health > /dev/null 2>&1; then
    echo "✅ Backend is healthy"
else
    echo "⚠️  Backend health check failed (may still be starting up)"
fi

# Check frontend
if curl -f -s http://localhost > /dev/null 2>&1; then
    echo "✅ Frontend is accessible"
else
    echo "⚠️  Frontend health check failed (may still be starting up)"
fi

echo ""
echo "🎉 Deployment complete!"
echo ""
echo "📱 Access your application:"
echo "   Frontend: http://localhost"
echo "   Backend API: http://localhost:3000"
echo "   Health Check: http://localhost:3000/health"
echo ""
echo "📋 Useful commands:"
echo "   View logs: docker-compose logs -f"
echo "   Stop app: docker-compose down"
echo "   Restart: docker-compose restart"
echo "   Update: docker-compose pull && docker-compose up -d"
echo ""
echo "🆘 If you encounter issues:"
echo "   1. Check logs: docker-compose logs"
echo "   2. Verify .env configuration"
echo "   3. Ensure Google OAuth is properly configured"
echo "   4. Check that ports 80 and 3000 are available"