#!/bin/bash
# ZMB Webui Frontend Deployment Script

set -e

echo "=== ZMB Webui Frontend Deployment ==="

# Configuration
FRONTEND_DIR="/opt/zmb-webui/frontend"
NODE_VERSION="v20.19.2"
NPM_VERSION="9.2.0"

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

# Check Node.js and npm
echo -e "${YELLOW}1. Checking Node.js and npm...${NC}"
NODE_INSTALLED=$(node --version 2>/dev/null || echo "")
if [ -z "$NODE_INSTALLED" ]; then
    echo -e "${RED}✗ Node.js not installed${NC}"
    exit 1
fi
echo -e "${GREEN}✓ Node.js $NODE_INSTALLED installed${NC}"

NPM_INSTALLED=$(npm --version 2>/dev/null || echo "")
if [ -z "$NPM_INSTALLED" ]; then
    echo -e "${RED}✗ npm not installed${NC}"
    exit 1
fi
echo -e "${GREEN}✓ npm $NPM_INSTALLED installed${NC}"

# Check frontend directory
echo -e "${YELLOW}2. Checking frontend directory...${NC}"
if [ ! -d "$FRONTEND_DIR" ]; then
    echo -e "${RED}✗ Frontend directory not found: $FRONTEND_DIR${NC}"
    exit 1
fi
echo -e "${GREEN}✓ Frontend directory found${NC}"

# Install dependencies
echo -e "${YELLOW}3. Installing dependencies...${NC}"
cd "$FRONTEND_DIR"
npm install --prefer-offline --no-audit
echo -e "${GREEN}✓ Dependencies installed${NC}"

# Build project
echo -e "${YELLOW}4. Building Next.js project...${NC}"
npm run build
echo -e "${GREEN}✓ Build successful${NC}"

# Create systemd service
echo -e "${YELLOW}5. Setting up systemd service...${NC}"
sudo cp /tmp/zmb-webui-frontend.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable zmb-webui-frontend
echo -e "${GREEN}✓ Systemd service configured${NC}"

# Start service
echo -e "${YELLOW}6. Starting frontend service...${NC}"
sudo systemctl restart zmb-webui-frontend
sleep 2

# Verify service
if sudo systemctl is-active --quiet zmb-webui-frontend; then
    echo -e "${GREEN}✓ Frontend service running${NC}"
else
    echo -e "${RED}✗ Frontend service failed to start${NC}"
    sudo systemctl status zmb-webui-frontend
    exit 1
fi

# Test connectivity
echo -e "${YELLOW}7. Testing connectivity...${NC}"
sleep 2
if curl -s http://localhost:3000 > /dev/null 2>&1; then
    echo -e "${GREEN}✓ Frontend accessible at http://localhost:3000${NC}"
else
    echo -e "${YELLOW}⚠ Frontend not yet responding (may be starting)${NC}"
fi

# Summary
echo ""
echo -e "${GREEN}=== Deployment Complete ===${NC}"
echo ""
echo "Frontend is running at:"
echo "  Local:  http://localhost:3000"
echo "  Remote: http://$(hostname -I | awk '{print $1}'):9090"
echo ""
echo "Admin credentials:"
echo "  Username: admin"
echo "  Password: testpass123"
echo ""
echo "Service management:"
echo "  systemctl status zmb-webui-frontend"
echo "  systemctl restart zmb-webui-frontend"
echo "  systemctl stop zmb-webui-frontend"
echo ""
echo "Logs:"
echo "  journalctl -u zmb-webui-frontend -f"