#!/bin/bash

echo "🔧 监控和告警系统环境检查..."

# 检查 Docker
if ! command -v docker &> /dev/null; then
    echo "❌ Docker 未安装"
    echo "请访问 https://docs.docker.com/get-docker/ 安装 Docker"
    exit 1
else
    echo "✅ Docker 已安装: $(docker --version)"
fi

# 检查 Docker Compose
if ! command -v docker-compose &> /dev/null; then
    echo "❌ Docker Compose 未安装"
    echo "请运行: sudo curl -L \"https://github.com/docker/compose/releases/latest/download/docker-compose-\$(uname -s)-\$(uname -m)\" -o /usr/local/bin/docker-compose"
    echo "然后运行: sudo chmod +x /usr/local/bin/docker-compose"
    exit 1
else
    echo "✅ Docker Compose 已安装: $(docker-compose --version)"
fi

# 检查端口占用
echo ""
echo "📊 检查端口占用情况..."

check_port() {
    if lsof -Pi :$1 -sTCP:LISTEN -t >/dev/null 2>&1; then
        echo "⚠️  端口 $1 已被占用"
        return 1
    else
        echo "✅ 端口 $1 可用"
        return 0
    fi
}

check_port 3000  # 应用服务
check_port 9090  # Prometheus
check_port 3001  # Grafana
check_port 9093  # Alertmanager

echo ""
echo "✅ 环境检查完成！"