package application

import (
	"flag"
	"os"
	"strings"
	"sync"

	"gitee.com/wangshuo1986/jframe/web"

	"gitee.com/wangshuo1986/jframe/config"
	"gitee.com/wangshuo1986/jframe/logger"
)

// App The JFramework's singleton
var App *application
var once sync.Once

type startParams struct {
	HttpListenIP   string  `json:"http_listen_ip"`   // HttpServer 监听IP地址
	HttpListenPort int     `json:"http_listen_port"` // HttpServer监听端口
	AppEnv         APP_ENV `json:"app_env"`          // APP环境（DEV、PROD）
}

type application struct {
	startParams
	Logger *logger.JLogger
	config.AppConfig
	web.Web
}

// init 创建一个JFrame框架单例
func init() {
	once.Do(
		func() {
			params := handleParams()
			App = &application{
				params,
				logger.GetMultiWriteLogger("", os.Stdout),
				*config.Config,
				*web.Server,
			}
		},
	)
}

// handleParams 处理启动参数
func handleParams() startParams {
	httpListenIP := flag.String(
		"listen", "127.0.0.1", "HTTP server listening IPv4 address.",
	)
	httpListenPort := flag.Int("port", 8080, "HTTP server listening port.")
	appEnv := flag.String("env", "dev", "Serve mode.")
	flag.Parse()
	return startParams{
		HttpListenIP:   *httpListenIP,
		HttpListenPort: *httpListenPort,
		AppEnv:         APP_ENV(strings.ToUpper(*appEnv)),
	}
}