package main

import (
	"log"
	"os"
	"path"
)

var (
	CFG   *Config
	LOG   *log.Logger
	USERS *UserManager
)

func Singletons() {
	// Initialize Config
	CFG = LoadConfig()

	// Check Paths (Data, Messages, Files, and Logs)
	if !Exists(CFG.DataPath) {
		err := os.Mkdir(CFG.DataPath, os.ModeDir)
		if err != nil {
			panic("init >> mkdir data ('" + CFG.DataPath + "') >> " + err.Error())
		}
	}
	if !Exists(CFG.MessagePath) {
		err := os.Mkdir(CFG.MessagePath, os.ModeDir)
		if err != nil {
			panic("init >> mkdir msgs ('" + CFG.MessagePath + "') >> " + err.Error())
		}
	}
	if !Exists(CFG.FilePath) {
		err := os.Mkdir(CFG.FilePath, os.ModeDir)
		if err != nil {
			panic("init >> mkdir files ('" + CFG.FilePath + "') >> " + err.Error())
		}
	}
	if !Exists(CFG.LogPath) {
		err := os.Mkdir(CFG.LogPath, os.ModeDir)
		if err != nil {
			panic("init >> mkdir logs ('" + CFG.LogPath + "') >> " + err.Error())
		}
	}

	// Establish connection to main Log file ('logs/lunar_hub.log')
	log_path := path.Join(CFG.LogPath, "lunar_hub.log")
	f, err := os.OpenFile(log_path, os.O_CREATE|os.O_APPEND|os.O_RDWR|os.O_SYNC, 0666)
	if err != nil {
		panic("init >> opening main log ('" + log_path + "') >> " + err.Error())
	}
	LOG = log.New(f, "", log.Ldate|log.Ltime|log.Lshortfile)
	LOG.Println("")
}