Add validation and limits to current input

cmd/configure/localization/de.toml

@@ -115,6 +115,8 @@ ValueError_Used = "Dieser Wert wird bereits verwendet."
 ValueError_Empty = "Der Wert darf nicht leer sein."
 ValueError_Float = "Der Wert muss eine Zahl sein. Nachkommastellen mit . anstatt mit , trennen."
 ValueError_Number = "Der Wert muss eine ganzzahlige Zahl sein."
+ValueError_NumberLowerThanMin = "Der Wert muss größer oder gleich {{ .Min }} sein."
+ValueError_NumberBiggerThanMax = "Der Wert muss kleiner oder gleich {{ .Max }} sein."
 
 Device_Configure = "Konfiguration"
 Device_Added = "wurde erfolgreich hinzugefügt."

cmd/configure/localization/en.toml

@@ -115,6 +115,8 @@ ValueError_Used = "This value is aready in use."
 ValueError_Empty = "The value may not be empty."
 ValueError_Float = "The value has to be a number."
 ValueError_Number = "The value has to be an integer."
+ValueError_NumberLowerThanMin = "The value must be bigger or equal to {{ .Min }}."
+ValueError_NumberBiggerThanMax = "The value must be smaller or equal to {{ .Max }}."
 
 Device_Configure = "Configuration"
 Device_Added = "was successfully added."

cmd/configure/main.go

@@ -275,6 +275,7 @@ func (c *CmdConfigure) configureLoadpoints() {
 		}
 		fmt.Println()
 		powerIndex, _ := c.askChoice(c.localizedString("Loadpoint_WallboxMaxPower", nil), powerChoices)
+		loadpoint.MinCurrent = 6
 		switch powerIndex {
 		case 0:
 			loadpoint.MaxCurrent = 16
@@ -293,9 +294,11 @@ func (c *CmdConfigure) configureLoadpoints() {
 			}
 		case 3:
 			amperage := c.askValue(question{
-				label:     c.localizedString("Loadpoint_WallboxMaxAmperage", nil),
-				valueType: templates.ParamValueTypeNumber,
-				required:  true})
+				label:          c.localizedString("Loadpoint_WallboxMaxAmperage", nil),
+				valueType:      templates.ParamValueTypeNumber,
+				minNumberValue: 6,
+				maxNumberValue: 32,
+				required:       true})
 			loadpoint.MaxCurrent, _ = strconv.Atoi(amperage)
 
 			if !chargerHasMeter {

cmd/configure/survey.go

@@ -111,12 +111,13 @@ func (c *CmdConfigure) askYesNo(label string) bool {
 }
 
 type question struct {
-	label, help                string
-	defaultValue, exampleValue interface{}
-	invalidValues              []string
-	valueType                  string
-	mask, required             bool
-	excludeNone                bool
+	label, help                    string
+	defaultValue, exampleValue     interface{}
+	invalidValues                  []string
+	valueType                      string
+	minNumberValue, maxNumberValue int64
+	mask, required                 bool
+	excludeNone                    bool
 }
 
 // askBoolValue asks for a boolean value selection for a given question
@@ -177,10 +178,16 @@ func (c *CmdConfigure) askValue(q question) string {
 		}
 
 		if q.valueType == templates.ParamValueTypeNumber {
-			_, err := strconv.ParseInt(value, 10, 64)
+			intValue, err := strconv.ParseInt(value, 10, 64)
 			if err != nil {
 				return errors.New(c.localizedString("ValueError_Number", nil))
 			}
+			if q.minNumberValue != 0 && intValue < q.minNumberValue {
+				return errors.New(c.localizedString("ValueError_NumberLowerThanMin", localizeMap{"Min": q.minNumberValue}))
+			}
+			if q.maxNumberValue != 0 && intValue > q.maxNumberValue {
+				return errors.New(c.localizedString("ValueError_NumberBiggerThanMax", localizeMap{"Max": q.maxNumberValue}))
+			}
 		}
 
 		return nil