package main

import (
	"encoding/json"
	"net/http"
	"os"

	"git.pyer.club/kingecg/gohttpd/admin"
	handler "git.pyer.club/kingecg/gohttpd/hander"
	"git.pyer.club/kingecg/gohttpd/model"
	"git.pyer.club/kingecg/gohttpd/server"
	"git.pyer.club/kingecg/gologger"
)

type GoHttp struct {
	conf   model.GoHttpdConfig
	logger gologger.Logger
}

func (g *GoHttp) Start() {
	g.logger.Info("start gohttpd")
	// if g.conf != nil {
	port := model.DefaultAdminConfig.Port
	if g.conf.Admin != nil {
		port = g.conf.Admin.Port
	}

	g.makeServer("admin", port, admin.AdminServerMux)

	for _, server := range g.conf.Servers {
		sHandler := g.assembleServerMux(server.Paths)
		g.makeServer(server.ServerName, server.Port, sHandler)
	}

	for _, listener := range server.ServerManager {
		listener.Start()
		listener.Serve()

	}
	g.logger.Info("gohttpd start success")
}

func (g *GoHttp) makeServer(name string, port int, mux http.Handler) {
	s := &http.Server{
		Handler: mux,
	}
	server.AddServer(name, s, port)
}

func (g *GoHttp) assembleServerMux(p []model.HttpPath) http.Handler {
	s := http.NewServeMux()
	for _, httpPath := range p {
		if httpPath.Root != "" {
			fileHandler := handler.NewFileHandler(handler.FileHandler{
				Root:    httpPath.Root,
				Default: httpPath.Default,
			})
			s.Handle(httpPath.Path, fileHandler)
		} else if len(httpPath.Upstreams) != 0 {
			proxyHandler := handler.NewProxyHandler(&httpPath)
			s.Handle(httpPath.Path, proxyHandler)
		} else {
			g.logger.Error("Not supportted server path type :", httpPath.Path)
		}
	}
	return s
}

func (g *GoHttp) Stop() {}

func (g *GoHttp) LoadConfig(configPath string) {
	cpath := configPath
	if cpath == "" {
		cpath = GetExecDir() + "/config.json"
	}

	// read content from cpath
	content, _ := os.ReadFile(cpath)
	json.Unmarshal(content, &g.conf)
	gologger.Configure(g.conf.Logging)
	g.logger = gologger.GetLogger("Server")
	g.logger.Info("Load config success")
}