evcc-io/charger/charger.go
2021-08-21 12:53:25 +02:00

94 lines
2.3 KiB
Go

package charger
import (
"fmt"
"github.com/evcc-io/evcc/api"
"github.com/evcc-io/evcc/provider"
"github.com/evcc-io/evcc/util"
)
// Charger is an api.Charger implementation with configurable getters and setters.
type Charger struct {
statusG func() (string, error)
enabledG func() (bool, error)
enableS func(bool) error
maxCurrentS func(int64) error
}
func init() {
registry.Add("default", NewConfigurableFromConfig)
registry.Add(api.Custom, NewConfigurableFromConfig)
}
// NewConfigurableFromConfig creates a new configurable charger
func NewConfigurableFromConfig(other map[string]interface{}) (api.Charger, error) {
cc := struct{ Status, Enable, Enabled, MaxCurrent provider.Config }{}
if err := util.DecodeOther(other, &cc); err != nil {
return nil, err
}
status, err := provider.NewStringGetterFromConfig(cc.Status)
if err != nil {
return nil, fmt.Errorf("status: %w", err)
}
enabled, err := provider.NewBoolGetterFromConfig(cc.Enabled)
if err != nil {
return nil, fmt.Errorf("enabled: %w", err)
}
enable, err := provider.NewBoolSetterFromConfig("enable", cc.Enable)
if err != nil {
return nil, fmt.Errorf("enable: %w", err)
}
maxcurrent, err := provider.NewIntSetterFromConfig("maxcurrent", cc.MaxCurrent)
if err != nil {
return nil, fmt.Errorf("maxcurrent: %w", err)
}
return NewConfigurable(status, enabled, enable, maxcurrent)
}
// NewConfigurable creates a new charger
func NewConfigurable(
statusG func() (string, error),
enabledG func() (bool, error),
enableS func(bool) error,
maxCurrentS func(int64) error,
) (api.Charger, error) {
c := &Charger{
statusG: statusG,
enabledG: enabledG,
enableS: enableS,
maxCurrentS: maxCurrentS,
}
return c, nil
}
// Status implements the api.Charger interface
func (m *Charger) Status() (api.ChargeStatus, error) {
s, err := m.statusG()
if err != nil {
return api.StatusNone, err
}
return api.ChargeStatus(s), nil
}
// Enabled implements the api.Charger interface
func (m *Charger) Enabled() (bool, error) {
return m.enabledG()
}
// Enable implements the api.Charger interface
func (m *Charger) Enable(enable bool) error {
return m.enableS(enable)
}
// MaxCurrent implements the api.Charger interface
func (m *Charger) MaxCurrent(current int64) error {
return m.maxCurrentS(current)
}