package httpctx

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

func helloHandler(w http.ResponseWriter, req *http.Request) {
	log.Println("hello handler started")
	ctx := req.Context()
	defer log.Println("hello handler finishing")

	select {
	case <-time.After(10 * time.Second):
		fmt.Fprintln(w, "hello there!")
	case <-ctx.Done():
		err := ctx.Err()
		log.Println("hello error:", err.Error())
		internalError := http.StatusInternalServerError
		http.Error(w, err.Error(), internalError)
	}
}

func HttpCtx() {
	log.Println("Server listening on :8002")
	http.HandleFunc("/hello", helloHandler)
	http.ListenAndServe(":8002", nil)
}