prefs.go

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"

	"github.com/chinenual/synergize/logger"
)

type Preferences struct {
	LibraryPath        string
	OscAutoConfig      bool
	OscCSurfaceAddress string
	OscCSurfacePort    uint
	OscPort            uint
	SerialBaud         uint
	SerialPort         string
	SerialFlowControl  bool
	UseOsc             bool
	UseSerial          bool

	// hidden from user
	HTTPDebug bool
}

var preferencesPathname = getWorkingDirectory() + "/preferences.json"

var prefsUserPreferences = Preferences{
	OscAutoConfig:     false,
	OscCSurfacePort:   9000,
	OscPort:           8000,
	SerialBaud:        9600,
	SerialFlowControl: true,
	UseOsc:            false,
	UseSerial:         true,
}

func prefsLoadPreferences() (err error) {
	var b []byte
	if b, err = ioutil.ReadFile(preferencesPathname); err != nil {
		logger.Errorf("Error loading preferences.  Using defaults %#v: %v", prefsUserPreferences, err)
		return
	}
	if err = json.Unmarshal(b, &prefsUserPreferences); err != nil {
		logger.Errorf("Error parsing preferences.  Using defaults %#v: %v", prefsUserPreferences, err)
		return
	}
	logger.Infof("Loaded preferences %#v from file %s\n", prefsUserPreferences, preferencesPathname)
	return
}

func prefsSavePreferences() (err error) {
	var b []byte
	if b, err = json.MarshalIndent(prefsUserPreferences, "", " "); err != nil {
		logger.Error("Error saving preferences", err)
	}
	logger.Infof("Save preferences %#v to file %s\n", prefsUserPreferences, preferencesPathname)
	if err = ioutil.WriteFile(preferencesPathname, b, 0644); err != nil {
		logger.Error("Error saving preferences", err)
	}
	return
}

func prefsSynergyName() string {
	hostname, _ := os.Hostname()
	return fmt.Sprintf("%s [%s]", hostname, prefsUserPreferences.SerialPort)
}