evcc-io/meter/measurement/action.go

93 lines
1.9 KiB
Go

package measurement
import (
"context"
"errors"
"fmt"
"github.com/evcc-io/evcc/api/implement"
"github.com/evcc-io/evcc/plugin"
)
type Dimmer struct {
Dim *plugin.Config // optional
Dimmed *plugin.Config // optional
}
func (cc *Dimmer) Configure(ctx context.Context) (
func(bool) error,
func() (bool, error),
error,
) {
dimS, err := cc.Dim.BoolSetter(ctx, "dim")
if err != nil {
return nil, nil, fmt.Errorf("dim: %w", err)
}
dimmedG, err := cc.Dimmed.BoolGetter(ctx)
if err != nil {
return nil, nil, fmt.Errorf("dimmed: %w", err)
}
if (dimS == nil) != (dimmedG == nil) {
return nil, nil, errors.New("must have dim and dimmed or none of both")
}
return dimS, dimmedG, nil
}
func (cc *Dimmer) Implement(ctx context.Context, i implement.Caps) error {
dimS, dimmedG, err := cc.Configure(ctx)
if err != nil {
return err
}
implement.May(i, implement.Dimmer(dimS, dimmedG))
return nil
}
type Curtailer struct {
Curtail *plugin.Config // optional
Curtailed *plugin.Config // optional
}
func (cc *Curtailer) Configure(ctx context.Context) (
func(int64) error,
func() (int64, error),
error,
) {
curtailS, err := cc.Curtail.IntSetter(ctx, "curtail")
if err != nil {
return nil, nil, fmt.Errorf("curtail: %w", err)
}
curtailedG, err := cc.Curtailed.IntGetter(ctx)
if err != nil {
return nil, nil, fmt.Errorf("curtailed: %w", err)
}
if (curtailS == nil) != (curtailedG == nil) {
return nil, nil, errors.New("must have curtail and curtailed or none of both")
}
return curtailS, curtailedG, nil
}
func (cc *Curtailer) Implement(ctx context.Context, i implement.Caps) error {
curtailS, curtailedG, err := cc.Configure(ctx)
if err != nil {
return err
}
if curtailS != nil {
getPercent := func() (int, error) {
percent, err := curtailedG()
return int(percent), err
}
setPercent := func(percent int) error { return curtailS(int64(percent)) }
implement.May(i, implement.Curtailer(getPercent, setPercent))
}
return nil
}