#!/bin/bash

# VIP Coordinator - Quick Deployment Script
# This script helps you deploy VIP Coordinator with Docker

set -e

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

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

echo "✅ Docker and Docker Compose are installed"

# Check if .env file exists
if [ ! -f ".env" ]; then
    if [ -f ".env.example" ]; then
        echo "📝 Creating .env file from template..."
        cp .env.example .env
        echo "⚠️  IMPORTANT: Please edit .env file with your configuration before continuing!"
        echo "   Required changes:"
        echo "   - DB_PASSWORD: Set a secure database password"
        echo "   - ADMIN_PASSWORD: Set a secure admin password"
        echo "   - GOOGLE_CLIENT_ID: Your Google OAuth Client ID"
        echo "   - GOOGLE_CLIENT_SECRET: Your Google OAuth Client Secret"
        echo "   - Update domain settings for production deployment"
        echo ""
        read -p "Press Enter after you've updated the .env file..."
    else
        echo "❌ .env.example file not found. Please ensure you have the deployment files."
        exit 1
    fi
fi

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

source .env

if [ -z "$DB_PASSWORD" ] || [ "$DB_PASSWORD" = "VipCoord2025SecureDB" ]; then
    echo "⚠️  Warning: Please change DB_PASSWORD from the default value"
fi

if [ -z "$ADMIN_PASSWORD" ] || [ "$ADMIN_PASSWORD" = "ChangeThisSecurePassword" ]; then
    echo "⚠️  Warning: Please change ADMIN_PASSWORD from the default value"
fi

if [ -z "$GOOGLE_CLIENT_ID" ] || [ "$GOOGLE_CLIENT_ID" = "your-google-client-id.apps.googleusercontent.com" ]; then
    echo "❌ Error: GOOGLE_CLIENT_ID must be configured"
    echo "   Please set up Google OAuth and update your .env file"
    exit 1
fi

if [ -z "$GOOGLE_CLIENT_SECRET" ] || [ "$GOOGLE_CLIENT_SECRET" = "your-google-client-secret" ]; then
    echo "❌ Error: GOOGLE_CLIENT_SECRET must be configured"
    echo "   Please set up Google OAuth and update your .env file"
    exit 1
fi

echo "✅ Configuration validated"

# Pull latest images
echo "📥 Pulling latest images from Docker Hub..."
docker-compose pull

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

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

# Check service status
echo "🔍 Checking service status..."
docker-compose ps

# Check if backend is healthy
echo "🏥 Checking backend health..."
for i in {1..30}; do
    if curl -s http://localhost:3000/health > /dev/null 2>&1; then
        echo "✅ Backend is healthy"
        break
    fi
    if [ $i -eq 30 ]; then
        echo "❌ Backend health check failed"
        echo "   Check logs with: docker-compose logs backend"
        exit 1
    fi
    sleep 2
done

# Check if frontend is accessible
echo "🌐 Checking frontend..."
if curl -s http://localhost/ > /dev/null 2>&1; then
    echo "✅ Frontend is accessible"
else
    echo "⚠️  Frontend check failed, but this might be normal during startup"
fi

echo ""
echo "🎉 VIP Coordinator deployment completed!"
echo "============================================="
echo "📍 Access your application:"
echo "   Frontend: http://localhost"
echo "   Backend API: http://localhost:3000"
echo ""
echo "📋 Next steps:"
echo "   1. Open http://localhost in your browser"
echo "   2. Click 'Continue with Google' to set up your admin account"
echo "   3. The first user to log in becomes the administrator"
echo ""
echo "🔧 Management commands:"
echo "   View logs:    docker-compose logs"
echo "   Stop app:     docker-compose down"
echo "   Update app:   docker-compose pull && docker-compose up -d"
echo ""
echo "📖 For production deployment, see DEPLOYMENT.md"