chore: refactor plugin structure (#18335)

plugin/sequence.go

@@ -0,0 +1,100 @@
+package plugin
+
+import (
+	"context"
+
+	"github.com/evcc-io/evcc/util"
+)
+
+type sequencePlugin struct {
+	ctx context.Context
+	set []Config
+}
+
+func init() {
+	registry.AddCtx("sequence", NewSequenceFromConfig)
+}
+
+// NewSequenceFromConfig creates sequence provider
+func NewSequenceFromConfig(ctx context.Context, other map[string]interface{}) (Plugin, error) {
+	var cc struct {
+		Set []Config
+	}
+
+	if err := util.DecodeOther(other, &cc); err != nil {
+		return nil, err
+	}
+
+	o := &sequencePlugin{
+		ctx: ctx,
+		set: cc.Set,
+	}
+
+	return o, nil
+}
+
+var _ IntSetter = (*sequencePlugin)(nil)
+
+func (o *sequencePlugin) IntSetter(param string) (func(int64) error, error) {
+	set := make([]func(int64) error, 0, len(o.set))
+	for _, cc := range o.set {
+		s, err := cc.IntSetter(o.ctx, param)
+		if err != nil {
+			return nil, err
+		}
+		set = append(set, s)
+	}
+
+	return func(val int64) error {
+		for _, s := range set {
+			if err := s(val); err != nil {
+				return err
+			}
+		}
+		return nil
+	}, nil
+}
+
+var _ FloatSetter = (*sequencePlugin)(nil)
+
+func (o *sequencePlugin) FloatSetter(param string) (func(float64) error, error) {
+	set := make([]func(float64) error, 0, len(o.set))
+	for _, cc := range o.set {
+		s, err := cc.FloatSetter(o.ctx, param)
+		if err != nil {
+			return nil, err
+		}
+		set = append(set, s)
+	}
+
+	return func(val float64) error {
+		for _, s := range set {
+			if err := s(val); err != nil {
+				return err
+			}
+		}
+		return nil
+	}, nil
+}
+
+var _ BoolSetter = (*sequencePlugin)(nil)
+
+func (o *sequencePlugin) BoolSetter(param string) (func(bool) error, error) {
+	set := make([]func(bool) error, 0, len(o.set))
+	for _, cc := range o.set {
+		s, err := cc.BoolSetter(o.ctx, param)
+		if err != nil {
+			return nil, err
+		}
+		set = append(set, s)
+	}
+
+	return func(val bool) error {
+		for _, s := range set {
+			if err := s(val); err != nil {
+				return err
+			}
+		}
+		return nil
+	}, nil
+}