120 lines
2.5 KiB
Go
120 lines
2.5 KiB
Go
package vehicle
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import (
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"context"
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"strings"
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"time"
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"github.com/evcc-io/evcc/api"
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"github.com/evcc-io/evcc/api/proto/pb"
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"github.com/evcc-io/evcc/provider"
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"github.com/evcc-io/evcc/util"
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"github.com/evcc-io/evcc/util/cloud"
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"github.com/evcc-io/evcc/util/request"
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"github.com/evcc-io/evcc/util/sponsor"
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)
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// Cloud is an api.Vehicle implementation
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type Cloud struct {
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*embed
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token string
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brand string
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config map[string]string
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client pb.VehicleClient
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vehicleID int64
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chargeStateG func() (float64, error)
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}
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func init() {
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registry.Add("cloud", NewCloudFromConfig)
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}
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// NewCloudFromConfig creates a new vehicle
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func NewCloudFromConfig(other map[string]interface{}) (api.Vehicle, error) {
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cc := struct {
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embed `mapstructure:",squash"`
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Brand string
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Other map[string]string `mapstructure:",remain"`
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Cache time.Duration
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}{
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Cache: interval,
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}
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if err := util.DecodeOther(other, &cc); err != nil {
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return nil, err
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}
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if !sponsor.IsAuthorized() {
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return nil, api.ErrSponsorRequired
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}
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host := util.Getenv("GRPC_URI", cloud.Host)
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conn, err := cloud.Connection(host)
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if err != nil {
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return nil, err
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}
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v := &Cloud{
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embed: &cc.embed,
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token: sponsor.Token,
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brand: cc.Brand,
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config: cc.Other,
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client: pb.NewVehicleClient(conn),
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}
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if err == nil {
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err = v.prepareVehicle()
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}
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v.chargeStateG = provider.Cached(v.chargeState, cc.Cache)
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return v, err
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}
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// prepareVehicle obtains new vehicle handle from cloud server
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func (v *Cloud) prepareVehicle() error {
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req := &pb.NewRequest{
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Token: v.token,
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Type: v.brand,
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Config: v.config,
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}
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ctx, cancel := context.WithTimeout(context.Background(), 3*request.Timeout)
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defer cancel()
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res, err := v.client.New(ctx, req)
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if err == nil {
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v.vehicleID = res.VehicleId
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}
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return err
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}
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// chargeState implements the api.Vehicle interface
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func (v *Cloud) chargeState() (float64, error) {
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req := &pb.SoCRequest{
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Token: v.token,
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VehicleId: v.vehicleID,
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}
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ctx, cancel := context.WithTimeout(context.Background(), request.Timeout)
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defer cancel()
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res, err := v.client.SoC(ctx, req)
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if err != nil && strings.Contains(err.Error(), api.ErrMustRetry.Error()) {
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return 0, api.ErrMustRetry
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}
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if err != nil && strings.Contains(err.Error(), cloud.ErrVehicleNotAvailable.Error()) && v.prepareVehicle() == nil {
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req.VehicleId = v.vehicleID
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res, err = v.client.SoC(ctx, req)
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}
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return res.GetSoc(), err
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}
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// SoC implements the api.Vehicle interface
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func (v *Cloud) SoC() (float64, error) {
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return v.chargeStateG()
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}
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