evcc-io/charger/shelly.go
2023-12-22 13:15:39 +01:00

83 lines
1.8 KiB
Go

package charger
import (
"fmt"
"github.com/evcc-io/evcc/api"
"github.com/evcc-io/evcc/meter/shelly"
"github.com/evcc-io/evcc/util"
)
// Shelly charger implementation
type Shelly struct {
conn *shelly.Switch
*switchSocket
}
func init() {
registry.Add("shelly", NewShellyFromConfig)
}
// NewShellyFromConfig creates a Shelly charger from generic config
func NewShellyFromConfig(other map[string]interface{}) (api.Charger, error) {
var cc struct {
embed `mapstructure:",squash"`
URI string
User string
Password string
Channel int
StandbyPower float64
}
if err := util.DecodeOther(other, &cc); err != nil {
return nil, err
}
return NewShelly(cc.embed, cc.URI, cc.User, cc.Password, cc.Channel, cc.StandbyPower)
}
// NewShelly creates Shelly charger
func NewShelly(embed embed, uri, user, password string, channel int, standbypower float64) (*Shelly, error) {
conn, err := shelly.NewConnection(uri, user, password, channel)
if err != nil {
return nil, err
}
c := &Shelly{
conn: shelly.NewSwitch(conn),
}
c.switchSocket = NewSwitchSocket(&embed, c.Enabled, c.conn.CurrentPower, standbypower)
return c, nil
}
// Enabled implements the api.Charger interface
func (c *Shelly) Enabled() (bool, error) {
return c.conn.Enabled()
}
// Enable implements the api.Charger interface
func (c *Shelly) Enable(enable bool) error {
if err := c.conn.Enable(enable); err != nil {
return err
}
enabled, err := c.Enabled()
switch {
case err != nil:
return err
case enable != enabled:
onoff := map[bool]string{true: "on", false: "off"}
return fmt.Errorf("switch %s failed", onoff[enable])
default:
return nil
}
}
var _ api.MeterEnergy = (*Shelly)(nil)
// TotalEnergy implements the api.MeterEnergy interface
func (c *Shelly) TotalEnergy() (float64, error) {
return c.conn.TotalEnergy()
}