Read current config when starting, check appropriate buttons. Fixes #1

config/config.go

@@ -5,6 +5,7 @@ import (
 	"github.com/getlantern/systray"
 	"io/ioutil"
 	"os"
+	"strings"
 	"tawesoft.co.uk/go/dialog"
 )
 
@@ -17,14 +18,17 @@ type EApoConfig struct {
 	MenuItem *systray.MenuItem
 }
 
+func fatalError(errMsg string) {
+	dialog.Alert("EACS Fatal Error", errMsg)
+	os.Exit(1)
+}
+
 func CreateConfigSlice() []*EApoConfig {
 	var configSlice []*EApoConfig
 
 	files, err := ioutil.ReadDir(configFileDir)
 	if err != nil {
-		errMsg := fmt.Sprintf("Cannot read config file directory: %s", configFileDir)
-		dialog.Alert("EACS Config Error", errMsg)
-		os.Exit(1)
+		fatalError("Cannot read EACS config file directory")
 	}
 
 	for _, file := range files {
@@ -51,8 +55,28 @@ func WriteConfigToMaster(configSlice []*EApoConfig) {
 
 	err := ioutil.WriteFile(configFileMaster, completeData, 0644)
 	if err != nil {
-		errMsg := fmt.Sprintf("Cannot write to master config file: %s", configFileMaster)
-		dialog.Alert("EACS Config Error", errMsg)
-		os.Exit(1)
+		fatalError("Cannot write to master config file")
+	}
+}
+
+func ReadConfigFromMaster() []string {
+	var currentConfigFileNames []string
+
+	includes, err := ioutil.ReadFile(configFileMaster)
+	if err != nil {
+		fatalError("Cannot read from master config file")
 	}
+
+	lines := strings.Split(string(includes), "\n")
+
+	for _, line := range lines {
+
+		parts := strings.Split(line, "\\")
+		fileName := parts[len(parts)-1]
+
+		currentConfigFileNames = append(currentConfigFileNames, fileName)
+
+	}
+
+	return currentConfigFileNames
 }

main.go

@@ -7,8 +7,15 @@ import (
 	"strings"
 )
 
-func main() {
-	systray.Run(onReady, onExit)
+// Find takes a slice and looks for an element in it. If found it will return true, else false.
+// https://golangcode.com/check-if-element-exists-in-slice/
+func find(slice []string, val string) bool {
+	for _, item := range slice {
+		if item == val {
+			return true
+		}
+	}
+	return false
 }
 
 func onReady() {
@@ -17,12 +24,18 @@ func onReady() {
 	systray.SetTooltip("Equalizer APO Config Switcher")
 
 	configSlice := config.CreateConfigSlice()
+	currentConfigFileNames := config.ReadConfigFromMaster()
 
 	for _, configStruct := range configSlice {
 		configName := strings.Replace(configStruct.FileName, ".txt", "", 1)
 		btn := systray.AddMenuItem(configName, "Activate / Deactivate this config")
 		configStruct.MenuItem = btn
 
+		// If this config is already in the config master file
+		if find(currentConfigFileNames, configStruct.FileName) {
+			btn.Check()
+		}
+
 		go func() {
 			for {
 				<-btn.ClickedCh
@@ -46,8 +59,13 @@ func onReady() {
 			systray.Quit()
 		}
 	}()
+
 }
 
 func onExit() {
 	// No cleanup needed
 }
+
+func main() {
+	systray.Run(onReady, onExit)
+}