package core

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

// AppSettings represents persistent application settings.
type AppSettings struct {
	RunOnStartup  bool   `json:"RunOnStartup"`
	AutoConnect   bool   `json:"AutoConnect"`
	AutoReconnect bool   `json:"AutoReconnect"`
	LastConfigID  string `json:"LastConfigId,omitempty"`
}

func settingsPath() string {
	appData, _ := os.UserConfigDir()
	return filepath.Join(appData, "kettuRay", "settings.json")
}

// LoadSettings loads settings from disk, returning defaults on error.
func LoadSettings() *AppSettings {
	data, err := os.ReadFile(settingsPath())
	if err != nil {
		return &AppSettings{}
	}
	var s AppSettings
	if err := json.Unmarshal(data, &s); err != nil {
		return &AppSettings{}
	}
	return &s
}

// Save writes settings to disk.
func (s *AppSettings) Save() error {
	path := settingsPath()
	_ = os.MkdirAll(filepath.Dir(path), 0o755)
	data, err := json.MarshalIndent(s, "", "  ")
	if err != nil {
		return err
	}
	return os.WriteFile(path, data, 0o644)
}