init.go

package main

import (
	"fmt"
	"os"
	"path/filepath"

	"github.com/ahui2016/temp-files/util"
	"github.com/pelletier/go-toml/v2"
	"github.com/samber/lo"
)

const (
	MB = 1024 * 1024
)

const (
	AppConfigTOML          = "app_config.toml"
	AppConfigDefaultTOML   = "app_config_default.toml"
	PublicFolderName       = "public"
	FilesFolderName        = "files"
	OldTextFilesFolderName = "old"
)

var (
	Separator             = string(filepath.Separator)
	app_root              = filepath.Dir(executable())
	app_config            *AppConfig
	app_config_path       = filepath.Join(app_root, AppConfigTOML)
	app_cfg_default_path  = filepath.Join(app_root, AppConfigDefaultTOML)
	public_folder         = filepath.Join(app_root, PublicFolderName)
	files_folder          = filepath.Join(app_root, FilesFolderName)
	old_text_files_folder = filepath.Join(app_root, OldTextFilesFolderName)
)

func init() {
	initAppConfig()
	readAppConfig()
	fmt.Println(app_config)
}

func initAppConfig() {
	if util.PathNotExists(app_config_path) {
		err := util.CopyFile(app_config_path, app_cfg_default_path)
		lo.Must0(err)
	}
}

// executable returns lo.Must1(os.Executable())
func executable() string {
	return lo.Must1(os.Executable())
}

func readAppConfig() {
	data := lo.Must(os.ReadFile(app_config_path))
	lo.Must0(toml.Unmarshal(data, &app_config))
}