package agent

import (
	"nginx-ui/server/models"
	"nginx-ui/server/nginx"
)

var proxyNginx *nginx.Instance

func GetInstance(ngx *models.Nginx) *nginx.Instance {
	var instance = proxyNginx
	if instance != nil {
		old := instance.GetNginx()
		if old.IpAddr != ngx.IpAddr || old.Port != ngx.Port || old.User != ngx.User || old.Password != ngx.Password {
			instance.Close(false)
			instance = nil
		} else {
			instance.SetNginx(ngx)
			return instance
		}
	}
	if ngx.IsLocal {
		instance = nginx.NewInstance(nginx.NewLocalNginx(ngx), ngx)
	} else {
		instance = nginx.NewInstance(nginx.NewRemoteInstance(ngx), ngx)
	}
	instance.SetNginx(ngx)
	proxyNginx = instance
	return instance
}