#!/bin/bash

# Production Deployment Script for dk0.dev
# This script sets up the production environment and deploys the application

set -e

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# Logging functions
log() {
    echo -e "${BLUE}[$(date +'%Y-%m-%d %H:%M:%S')]${NC} $1"
}

error() {
    echo -e "${RED}[ERROR]${NC} $1" >&2
}

success() {
    echo -e "${GREEN}[SUCCESS]${NC} $1"
}

warning() {
    echo -e "${YELLOW}[WARNING]${NC} $1"
}

# Check if running as root
if [[ $EUID -eq 0 ]]; then
   error "This script should not be run as root"
   exit 1
fi

# Check if Docker is running
if ! docker info > /dev/null 2>&1; then
    error "Docker is not running. Please start Docker and try again."
    exit 1
fi

log "Starting production deployment for dk0.dev..."

# Create production environment file if it doesn't exist
if [ ! -f .env ]; then
    log "Creating production environment file..."
    cat > .env << EOF
# Production Environment Configuration for dk0.dev
NODE_ENV=production
NEXT_PUBLIC_BASE_URL=https://dk0.dev
MY_EMAIL=contact@dk0.dev
MY_INFO_EMAIL=info@dk0.dev
MY_PASSWORD=your-email-password
MY_INFO_PASSWORD=your-info-email-password
ADMIN_BASIC_AUTH=admin:your_secure_password_here
LOG_LEVEL=info
PORT=3000
EOF
    warning "Created .env file with default values. Please update with your actual credentials!"
fi

# Create proxy network if it doesn't exist
log "Creating proxy network..."
docker network create proxy 2>/dev/null || {
    log "Proxy network already exists"
}

# Build the application
log "Building production image..."
docker build -t portfolio-app:latest . || {
    error "Failed to build image"
    exit 1
}

# Stop existing containers
log "Stopping existing containers..."
docker-compose down 2>/dev/null || {
    log "No existing containers to stop"
}

# Start the application
log "Starting production containers..."
docker-compose up -d || {
    error "Failed to start containers"
    exit 1
}

# Wait for services to be healthy
log "Waiting for services to be healthy..."
HEALTH_CHECK_TIMEOUT=120
HEALTH_CHECK_INTERVAL=5
ELAPSED=0

while [ $ELAPSED -lt $HEALTH_CHECK_TIMEOUT ]; do
    if curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
        success "Application is healthy!"
        break
    fi
    
    sleep $HEALTH_CHECK_INTERVAL
    ELAPSED=$((ELAPSED + HEALTH_CHECK_INTERVAL))
    echo -n "."
done

if [ $ELAPSED -ge $HEALTH_CHECK_TIMEOUT ]; then
    error "Health check timeout. Application may not be running properly."
    log "Container logs:"
    docker-compose logs --tail=50
    exit 1
fi

# Run database migrations
log "Running database migrations..."
docker exec portfolio-app npx prisma db push || {
    warning "Database migration failed, but continuing..."
}

# Verify deployment
log "Verifying deployment..."
if curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
    success "Production deployment successful!"
    
    # Show container status
    log "Container status:"
    docker-compose ps
    
    # Show resource usage
    log "Resource usage:"
    docker stats --no-stream --format "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}"
    
else
    error "Deployment verification failed!"
    log "Container logs:"
    docker-compose logs --tail=50
    exit 1
fi

success "Production deployment completed successfully!"
log "Application is available at: http://localhost:3000/"
log "Health check endpoint: http://localhost:3000/api/health"
log "Admin panel: http://localhost:3000/manage"
log ""
log "Next steps:"
log "1. Update .env file with your actual credentials"
log "2. Set up SSL certificates for HTTPS"
log "3. Configure your reverse proxy (nginx/traefik) to point to localhost:3000"
log "4. Update DNS to point dk0.dev to your server"