CIiP-WS-2021-2022-Projektarbeit_Lithium/settings/settings.go

package settings

import (
	"encoding/json"
	"os"
	"path/filepath"
)

const (
	Local FileSystemType = iota
)

type FileSystemType int

type Settings struct {
	Endpoint        string
	Token           string
	StorageProvider StorageSettings
}

type StorageSettings struct {
	Type     FileSystemType
	BasePath string
}

func parseSettings(data []byte) Settings {
	settings := Settings{}

	json.Unmarshal(data, &settings)

	return settings
}

func LoadSettings() Settings {
	workingDirectory, _ := os.Getwd()
	path := filepath.Join(workingDirectory, "settings.json")

	// Load file and parse file
	data, err := os.ReadFile(path)

	if err == nil {
		return parseSettings(data)
	}

	// If file does not exist, create default settings
	defaultSettings := Settings{
		Endpoint: "127.0.0.1:8000",
		Token:    "changeme",
		StorageProvider: StorageSettings{
			Type:     Local,
			BasePath: "assets",
		},
	}

	serializedSettings, err := json.MarshalIndent(defaultSettings, "", "\t")
	os.WriteFile(path, serializedSettings, os.ModePerm)

	return defaultSettings
}