evcc-io/provider/combined.go
2024-10-12 12:20:22 +02:00

76 lines
1.6 KiB
Go

package provider
import (
"context"
"github.com/evcc-io/evcc/api"
"github.com/evcc-io/evcc/util"
)
func init() {
registry.AddCtx("combined", NewCombinedFromConfig)
registry.AddCtx("openwb", NewCombinedFromConfig)
}
// combinedProvider implements status conversion from openWB to api.Status
type combinedProvider struct {
plugged, charging func() (bool, error)
}
// NewCombinedFromConfig creates combined provider
func NewCombinedFromConfig(ctx context.Context, other map[string]interface{}) (Provider, error) {
var cc struct {
Plugged, Charging Config
}
if err := util.DecodeOther(other, &cc); err != nil {
return nil, err
}
plugged, err := NewBoolGetterFromConfig(ctx, cc.Plugged)
if err != nil {
return nil, err
}
charging, err := NewBoolGetterFromConfig(ctx, cc.Charging)
if err != nil {
return nil, err
}
o := NewCombinedProvider(plugged, charging)
return o, nil
}
// NewCombinedProvider creates provider for OpenWB status converted from MQTT topics
func NewCombinedProvider(plugged, charging func() (bool, error)) *combinedProvider {
return &combinedProvider{
plugged: plugged,
charging: charging,
}
}
var _ StringProvider = (*combinedProvider)(nil)
// StringGetter returns string from OpenWB charging/ plugged status
func (o *combinedProvider) StringGetter() (func() (string, error), error) {
return func() (string, error) {
charging, err := o.charging()
if err != nil {
return "", err
}
if charging {
return string(api.StatusC), nil
}
plugged, err := o.plugged()
if err != nil {
return "", err
}
if plugged {
return string(api.StatusB), nil
}
return string(api.StatusA), nil
}, nil
}