package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
	"time"
)

func main() {
	// 获取环境变量或使用默认值
	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}

	// 创建一个简单的HTTP服务器
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		hostname, _ := os.Hostname()
		fmt.Fprintf(w, "Hello from DevContainer!\n")
		fmt.Fprintf(w, "Server time: %s\n", time.Now().Format(time.RFC1123))
		fmt.Fprintf(w, "Hostname: %s\n", hostname)
		fmt.Fprintf(w, "Remote Address: %s\n", r.RemoteAddr)
		fmt.Fprintf(w, "User-Agent: %s\n", r.UserAgent())
	})

	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusOK)
		fmt.Fprintf(w, "Healthy")
	})

	// 启动服务器
	log.Printf("Starting server on port %s", port)
	log.Fatal(http.ListenAndServe(":"+port, nil))
}