go-emlid/reach/client/protocol/v1/operations.go

319 lines
7.0 KiB
Go

package v1
import (
"context"
"strconv"
"strings"
"sync"
"forge.cadoles.com/cadoles/go-emlid/reach/client/logger"
"forge.cadoles.com/cadoles/go-emlid/reach/client/protocol"
"forge.cadoles.com/cadoles/go-emlid/reach/client/protocol/v1/model"
"forge.cadoles.com/cadoles/go-emlid/reach/client/socketio"
"github.com/pkg/errors"
)
type Operations struct {
addr string
client *socketio.Client
mutex sync.RWMutex
logger logger.Logger
}
// Close implements protocol.Operations.
func (o *Operations) Close(ctx context.Context) error {
o.mutex.Lock()
defer o.mutex.Unlock()
if o.client == nil {
return nil
}
o.client.Close()
return nil
}
const (
// EventBrowserConnected is emitted after the initial connection to the
// ReachView endpoint
eventBrowserConnected = "browser connected"
)
// Connect implements protocol.Operations.
func (o *Operations) Connect(ctx context.Context) error {
o.mutex.Lock()
defer o.mutex.Unlock()
if o.client != nil {
o.client.Close()
}
endpoint, err := socketio.EndpointFromAddr(o.addr)
if err != nil {
return errors.WithStack(err)
}
client := socketio.NewClient(endpoint)
o.logger.Debug("connecting", logger.Attr("endpoint", endpoint))
if err := client.Connect(); err != nil {
return errors.WithStack(err)
}
// Notifies the ReachView endpoint of a new connection.
// See misc/reachview/update_main.js line 297
payload := map[string]string{
"data": "I'm connected",
}
if err := client.Emit(eventBrowserConnected, payload); err != nil {
return errors.WithStack(err)
}
o.logger.Debug("connected")
o.client = client
return nil
}
// Emit implements protocol.Operations.
func (o *Operations) Emit(ctx context.Context, mType string, message any) error {
o.mutex.RLock()
defer o.mutex.RUnlock()
if o.client == nil || !o.client.Alive() {
return errors.WithStack(protocol.ErrClosed)
}
if err := o.client.Emit(mType, message); err != nil {
return errors.WithStack(err)
}
return nil
}
// On implements protocol.Operations.
func (o *Operations) On(ctx context.Context, event string) (chan any, error) {
o.mutex.RLock()
defer o.mutex.RUnlock()
if o.client == nil || !o.client.Alive() {
return nil, errors.WithStack(protocol.ErrClosed)
}
out := make(chan any)
closer := new(sync.Once)
handler := func(ch *socketio.Channel, data any) {
select {
case <-ctx.Done():
closer.Do(func() {
o.mutex.RLock()
defer o.mutex.RUnlock()
ch.Close()
close(out)
if o.client == nil {
return
}
})
return
default:
out <- data
}
}
if err := o.client.On(event, handler); err != nil {
return nil, errors.WithStack(err)
}
return out, nil
}
// Alive implements protocol.Operations.
func (o *Operations) Alive(ctx context.Context) (bool, error) {
o.mutex.RLock()
defer o.mutex.RUnlock()
if o.client == nil || !o.client.Alive() {
return false, errors.WithStack(protocol.ErrClosed)
}
return o.client.Alive(), nil
}
// Configuration implements protocol.Operations.
func (o *Operations) Configuration(ctx context.Context) (any, error) {
config, err := o.RequestConfiguration(ctx)
if err != nil {
return nil, errors.WithStack(err)
}
return config, nil
}
const (
eventReboot = "reboot"
)
// Reboot implements protocol.Operations.
func (o *Operations) Reboot(ctx context.Context) error {
o.mutex.RLock()
defer o.mutex.RUnlock()
if o.client == nil || !o.client.Alive() {
return errors.WithStack(protocol.ErrClosed)
}
var err error
var wg sync.WaitGroup
var once sync.Once
done := func() {
o.client.Off(socketio.OnDisconnection)
wg.Done()
}
wg.Add(1)
go func() {
<-ctx.Done()
err = ctx.Err()
once.Do(done)
}()
err = o.client.On(socketio.OnDisconnection, func(h *socketio.Channel, data any) {
once.Do(done)
})
if err != nil {
return errors.Wrapf(err, "error while binding to '%s' event", socketio.OnDisconnection)
}
if err = o.client.Emit(eventReboot, nil); err != nil {
return err
}
wg.Wait()
return err
}
const (
// ConfigurationApplySuccess -
configurationApplySuccess = "success"
// ConfigurationApplyFailed -
configurationApplyFailed = "failed"
)
// SetBase implements protocol.Operations.
func (o *Operations) SetBase(ctx context.Context, funcs ...protocol.SetBaseOptionFunc) error {
rawConfig, err := o.Configuration(ctx)
if err != nil {
return errors.WithStack(err)
}
config := rawConfig.(*model.Configuration)
baseMode := config.BaseMode
var baseCoordinates *model.BaseCoordinates
if baseMode != nil && baseMode.BaseCoordinates != nil {
baseCoordinates = baseMode.BaseCoordinates
}
opts := protocol.NewSetBaseOptions(funcs...)
var lat string
if opts.Latitude != nil {
lat = strconv.FormatFloat(*opts.Latitude, 'f', -1, 64)
} else if baseCoordinates != nil && baseCoordinates.Coordinates != nil && len(baseCoordinates.Coordinates) > 1 {
lat = *baseCoordinates.Coordinates[0]
} else {
lat = "0"
}
var lon string
if opts.Longitude != nil {
lon = strconv.FormatFloat(*opts.Longitude, 'f', -1, 64)
} else if baseCoordinates != nil && baseCoordinates.Coordinates != nil && len(baseCoordinates.Coordinates) > 1 {
lon = *baseCoordinates.Coordinates[1]
} else {
lon = "0"
}
var alt string
if opts.Height != nil {
alt = strconv.FormatFloat(*opts.Height, 'f', -1, 64)
} else if baseCoordinates != nil && baseCoordinates.Coordinates != nil && len(baseCoordinates.Coordinates) > 1 {
alt = *baseCoordinates.Coordinates[2]
} else {
alt = "0"
}
var antennaHeight string
if opts.AntennaOffset != nil {
antennaHeight = strconv.FormatFloat(*opts.AntennaOffset, 'f', -1, 64)
} else if baseCoordinates != nil && baseCoordinates.AntennaOffset != nil && baseCoordinates.AntennaOffset.Up != nil {
antennaHeight = *baseCoordinates.AntennaOffset.Up
} else {
antennaHeight = "0"
}
newConfig := &model.Configuration{
BaseMode: &model.BaseMode{
BaseCoordinates: &model.BaseCoordinates{
Accumulation: model.String("1"),
Coordinates: []*string{
model.String(lat),
model.String(lon),
model.String(alt),
},
AntennaOffset: &model.AntennaOffset{
East: model.String("0"),
North: model.String("0"),
Up: model.String(antennaHeight),
},
Format: model.BaseCoordinatesFormatLLH,
Mode: model.BaseCoordinatesModeManual,
},
},
}
result, _, err := o.ApplyConfiguration(ctx, newConfig)
if err != nil {
return errors.New("configuration update failed")
}
if result != configurationApplySuccess {
return errors.New("configuration update failed")
}
return nil
}
const (
eventGetReachViewVersion = "get reachview version"
eventReachViewVersionResults = "current reachview version"
)
type reachViewVersion struct {
Version string `json:"version"`
Stable bool `json:"bool"`
}
// Version implements protocol.Operations.
func (o *Operations) Version(ctx context.Context) (string, bool, error) {
res := &reachViewVersion{}
if err := o.ReqResp(ctx, eventGetReachViewVersion, nil, eventReachViewVersionResults, res); err != nil {
return "", false, err
}
return strings.TrimSpace(res.Version), res.Stable, nil
}
var _ protocol.Operations = &Operations{}