update config with get, gettoggle methods

config/main.go

@@ -7,12 +7,36 @@ import (
 )
 
 var (
-	Global     = NewDefaultConfig()
-	log        = logging.Init()
-	configChan = make(chan ConfigMsg)
+	Global = NewDefaultConfig()
+	log    = logging.Init()
 )
 
-type Config map[string]string
+type Config struct {
+	params  map[string]string
+	toggles map[string]bool
+	updates chan ConfigMsg
+}
+
+// Return param value
+func Get(k string) string {
+	if _, ok := Global.params[k]; ok == true {
+		return Global.params[k]
+	}
+	return ""
+}
+
+// Return toggle value
+func GetToggle(k string) bool {
+	if _, ok := Global.toggles[k]; ok == true {
+		return Global.toggles[k]
+	}
+	return false
+}
+
+// Toggle a boolean option
+func Toggle(k string) {
+	Global.toggles[k] = Global.toggles[k] != true
+}
 
 type ConfigMsg struct {
 	key string
@@ -21,16 +45,7 @@ type ConfigMsg struct {
 
 func Update(k, v string) {
 	log.Noticef("config update: %s = %s", k, v)
-	configChan <- ConfigMsg{k, v}
-}
-
-// Toggle a boolean option
-func Toggle(k string) {
-	if Global[k] == "0" {
-		Global[k] = "1"
-	} else {
-		Global[k] = "0"
-	}
+	Global.updates <- ConfigMsg{k, v}
 }
 
 func NewDefaultConfig() Config {
@@ -38,17 +53,23 @@ func NewDefaultConfig() Config {
 	if docker == "" {
 		docker = "unix:///var/run/docker.sock"
 	}
-	config := Config{
-		"dockerHost":     docker,
-		"filterStr":      "",
-		"sortField":      "id",
-		"sortReverse":    "0",
-		"enableHeader":   "0",
-		"loggingEnabled": "1",
+
+	params := map[string]string{
+		"dockerHost": docker,
+		"filterStr":  "",
+		"sortField":  "id",
 	}
+
+	toggles := map[string]bool{
+		"sortReverse":    false,
+		"enableHeader":   false,
+		"loggingEnabled": true,
+	}
+
+	config := Config{params, toggles, make(chan ConfigMsg)}
 	go func() {
-		for m := range configChan {
-			config[m.key] = m.val
+		for m := range config.updates {
+			config.params[m.key] = m.val
 		}
 	}()
 	return config