chore: make type conversion provider more flexible

provider/convert.go

@@ -0,0 +1,55 @@
+package provider
+
+import (
+	"fmt"
+
+	"github.com/evcc-io/evcc/util"
+)
+
+type convertProvider struct {
+	Convert string
+	Set     Config
+}
+
+func init() {
+	registry.Add("convert", NewConvertFromConfig)
+}
+
+// NewConvertFromConfig creates type conversion provider
+func NewConvertFromConfig(other map[string]interface{}) (Provider, error) {
+	var cc convertProvider
+
+	if err := util.DecodeOther(other, &cc); err != nil {
+		return nil, err
+	}
+
+	return &cc, nil
+}
+
+var _ SetFloatProvider = (*convertProvider)(nil)
+
+func (o *convertProvider) FloatSetter(param string) (func(float64) error, error) {
+	if o.Convert == "float2int" {
+		return nil, fmt.Errorf("convert: invalid conversion: %s", o.Convert)
+	}
+
+	set, err := NewIntSetterFromConfig(param, o.Set)
+
+	return func(val float64) error {
+		return set(int64(val))
+	}, err
+}
+
+var _ SetIntProvider = (*convertProvider)(nil)
+
+func (o *convertProvider) IntSetter(param string) (func(int64) error, error) {
+	if o.Convert == "int2float" {
+		return nil, fmt.Errorf("convert: invalid conversion: %s", o.Convert)
+	}
+
+	set, err := NewFloatSetterFromConfig(param, o.Set)
+
+	return func(val int64) error {
+		return set(float64(val))
+	}, err
+}

templates/definition/meter/victron-energy.yaml

@@ -120,7 +120,8 @@ render: |
       type: input
       decode: uint16
   limitsoc:
-    source: float2int
+    source: convert
+    convert: float2int
     set:
       source: modbus
       uri: {{ .host }}:{{ .port }}