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package settings
import (
"encoding/json"
"fmt"
"os"
)
const settingsLocation = "Settings.json"
type Settings struct {
SongsLocation string
Distribution distributionOptions
}
var defaultSettings = Settings {
SongsLocation: "./Songs",
Distribution: distributionOptions{
RandomisationChance: 0.5,
MaxPointPercent: 0.75,
StartSnapPercent: 0.1,
},
}
func (base Settings) String() string {
var outp, jsonErr = json.Marshal(base)
if jsonErr != nil {
return fmt.Sprintf("Failed to parse settings: %s", jsonErr.Error())
}
return string(outp)
}
var Current Settings = Settings{}
func ReadSettings() {
var file, fopenerr = os.ReadFile(settingsLocation)
if fopenerr != nil {
var success, inintBody = createSettingsFile()
if success {
file = inintBody
} else {
panic(fmt.Sprintf("Unable to load or create settings file. \nOriginal error: %v\n", fopenerr.Error()))
}
}
var data = Settings{}
json.Unmarshal(file, &data)
var validationErr = data.Validate()
if validationErr != nil {
panic(fmt.Sprintf("Failed to load settings file: %s", validationErr.Error()))
}
Current = data
}
func createSettingsFile() (bool, []byte ) {
var file, err = os.Create(settingsLocation)
if err != nil {
return false, nil
}
defer file.Close()
var inititalData = defaultSettings
var body, jsonerr = json.MarshalIndent(inititalData, "", " ")
if jsonerr != nil {
return false, nil
}
fmt.Fprint(file, string(body))
return true, body
}
// Returns an error with the issue description if the settings are invalid
func (base *Settings) Validate() error {
return nil
}
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