package f5

import (
	"net/http"
	"sync"
	"fmt"
	"q5"
)

type HttpServer struct {
	handlersMutex sync.RWMutex
	handlers map[string]func(http.ResponseWriter, *http.Request)
}

func (this *HttpServer) Init() *HttpServer {
	this.handlers = make(map[string]func(http.ResponseWriter, *http.Request))
	http.HandleFunc("/webapp/index.php", this.dispatchRequest)
	this.RegisterHandle("Ops", "selfChecking", func (w http.ResponseWriter,r *http.Request) {
		w.Write([]byte(`{"errcode":0, "errmsg":"", "health":1, "max_rundelay": 10}`))
	})
	fmt.Println("HttpServer.Init\n")
	return this
}

func (this *HttpServer) UnInit() {
	fmt.Println("HttpServer.UnInit\n")
}

func (this *HttpServer) Start(listen_port int32) {
	go http.ListenAndServe(fmt.Sprintf("0.0.0.0:%d", listen_port), nil)
}

func (this *HttpServer) dispatchRequest(w http.ResponseWriter, r *http.Request) {
	handleName := q5.Request(r, "c").GetString() + "$" + q5.Request(r, "a").GetString()
	handle := this.getHandle(handleName)
	if handle != nil {
		handle(w, r)
	} else {
		w.Write([]byte(`{"errcode":404, "errmsg":"接口不存在"}`))
	}
}

func (this *HttpServer) getHandle(handleName string) (func(http.ResponseWriter, *http.Request)) {
	this.handlersMutex.Lock()
	defer this.handlersMutex.Unlock()
	handle, _ := this.handlers[handleName]
	return handle
}

func (this *HttpServer) RegisterHandle(c string, a string, handle func(http.ResponseWriter, *http.Request)) {
	this.handlersMutex.Lock()
	defer this.handlersMutex.Unlock()
	handleName := c + "$" + a
	this.handlers[handleName] = handle
}