feat(server,module): add cast module

cmd/cli/command/app/run.go

@@ -8,6 +8,7 @@ import (
 	"forge.cadoles.com/arcad/edge/pkg/bus/memory"
 	appHTTP "forge.cadoles.com/arcad/edge/pkg/http"
 	"forge.cadoles.com/arcad/edge/pkg/module"
+	"forge.cadoles.com/arcad/edge/pkg/module/cast"
 	"forge.cadoles.com/arcad/edge/pkg/storage/sqlite"
 	"gitlab.com/wpetit/goweb/logger"
 
@@ -96,6 +97,7 @@ func RunCommand() *cli.Command {
 				appHTTP.WithServerModules(
 					module.ContextModuleFactory(),
 					module.ConsoleModuleFactory(),
+					cast.CastModuleFactory(),
 					module.LifecycleModuleFactory(bus),
 					module.NetModuleFactory(bus),
 					module.RPCModuleFactory(bus),

doc/apps/server-api/README.md

@@ -12,7 +12,7 @@ Comme son nom l'indique, elle permet d'exécuter des opérations d'initialisatio
 
 ```js
 function onInit() {
-    
+    console.log("My app booted !")
 }
 ```
 
@@ -26,3 +26,4 @@ Listes des modules disponibles côté serveur.
 - [`rpc`](./rpc.md)
 - [`store`](./store.md)
 - [`blob`](./blob.md)
+- [`cast`](./cast.md)

doc/apps/server-api/cast.md

@@ -0,0 +1,38 @@
+# Module `cast`
+
+Ce module permet de communiquer avec des appareils de présentation de type [Chromecast](https://store.google.com/fr/product/chromecast_setup?hl=fr).
+
+## Méthodes
+
+### `cast.refreshDevices(timeout?: string = '30s'): Promise<Device[]>`
+
+Rafraichit la liste locale des appareils de présentation disponibles sur les réseaux locaux de la borne.
+
+L'appel à cette méthode rafraîchit également la liste mise en cache et renvoyée par `cast.getDevices()`.
+
+### `cast.getDevices(): []Device`
+
+Retourne la liste mise en cache des appareils de présentation disponibles sur les réseaux locaux de la borne.
+
+La liste est initialement vide. Un appel initial à `cast.refreshDevices()` est nécessaire afin de mettre à jour celle ci.
+
+### `cast.loadUrl(deviceUuid: string, url: string, timeout?: string = '30s'): Promise<void>`
+
+Charge l'URL donnée sur l'appareil de présentation identifié par l'UUID `deviceUuid`.
+
+### `cast.stopCast(deviceUuid: string, timeout?: string = '30s'): Promise<void>`
+
+Stoppe l'application courante sur l'appareil de présentation identifié par l'UUID `deviceUuid`. 
+
+## Objets
+
+### `Device`
+
+```typescript
+interface Device {
+    uuid: string    // UUID de l'appareil
+    name: string    // Nom de l'appareil
+    host: string    // Adresse IPv4 de l'appareil
+    port: number    // Port distant du service
+}
+```

go.mod

@@ -4,9 +4,17 @@ go 1.19
 
 require modernc.org/sqlite v1.20.4
 
+require (
+	github.com/gogo/protobuf v0.0.0-20161014173244-50d1bd39ce4e // indirect
+	github.com/hashicorp/go.net v0.0.0-20151006203346-104dcad90073 // indirect
+	github.com/hashicorp/mdns v0.0.0-20151206042412-9d85cf22f9f8 // indirect
+	github.com/miekg/dns v0.0.0-20161006100029-fc4e1e2843d8 // indirect
+)
+
 require (
 	cdr.dev/slog v1.4.0 // indirect
 	github.com/alecthomas/chroma v0.7.0 // indirect
+	github.com/barnybug/go-cast v0.0.0-20201201064555-a87ccbc26692
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect

go.sum

@@ -52,6 +52,8 @@ github.com/alecthomas/kong v0.1.17-0.20190424132513-439c674f7ae0/go.mod h1:+inYU
 github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae/go.mod h1:+inYUSluD+p4L8KdviBSgzcqEjUQOfC5fQDRFuc36lI=
 github.com/alecthomas/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8/go.mod h1:MRgZdU3vrFd05IQ89AxUZ0aYdF39BYoNFa324SodPCA=
 github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
+github.com/barnybug/go-cast v0.0.0-20201201064555-a87ccbc26692 h1:JW4WZlqyaNWUUahfr7MigeDW6jmtam5cTzzo1lwsFhE=
+github.com/barnybug/go-cast v0.0.0-20201201064555-a87ccbc26692/go.mod h1:Au0ipPuCBA7zsOC61SnyrYetm8VT3vo1UJtwHeYke44=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
@@ -66,6 +68,7 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/daaku/go.zipexe v1.0.0/go.mod h1:z8IiR6TsVLEYKwXAoE/I+8ys/sDkgTzSL0CLnGVd57E=
 github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 h1:y5HC9v93H5EPKqaS1UYVg1uYah5Xf51mBfIoWehClUQ=
 github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964/go.mod h1:Xd9hchkHSWYkEqJwUGisez3G1QY8Ryz0sdWrLPMGjLk=
+github.com/davecgh/go-spew v1.0.1-0.20160907170601-6d212800a42e/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -105,6 +108,8 @@ github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3yg
 github.com/go-playground/universal-translator v0.16.0/go.mod h1:1AnU7NaIRDWWzGEKwgtJRd2xk99HeFyHw3yid4rvQIY=
 github.com/go-sourcemap/sourcemap v2.1.3+incompatible h1:W1iEw64niKVGogNgBN3ePyLFfuisuzeidWPMPWmECqU=
 github.com/go-sourcemap/sourcemap v2.1.3+incompatible/go.mod h1:F8jJfvm2KbVjc5NqelyYJmf/v5J0dwNLS2mL4sNA1Jg=
+github.com/gogo/protobuf v0.0.0-20161014173244-50d1bd39ce4e h1:eeyMpoxANuWNQ9O2auv4wXxJsrXzLUhdHaOmNWEGkRY=
+github.com/gogo/protobuf v0.0.0-20161014173244-50d1bd39ce4e/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191027212112-611e8accdfc9/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -172,9 +177,13 @@ github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+
 github.com/gorilla/sessions v1.2.0/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/hashicorp/go.net v0.0.0-20151006203346-104dcad90073 h1:9dodOMuH6u7LvPEkVydBv6KTHdm+SqsHOxHTzRW+1+w=
+github.com/hashicorp/go.net v0.0.0-20151006203346-104dcad90073/go.mod h1:hjKkEWcCURg++eb33jQU7oqQcI9XDCnUzHA0oac0k90=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/hashicorp/mdns v0.0.0-20151206042412-9d85cf22f9f8 h1:yupxZNIxm5U8Tfb8g65irIuHkgF8c4koHC7daPSyMTE=
+github.com/hashicorp/mdns v0.0.0-20151206042412-9d85cf22f9f8/go.mod h1:aa76Av3qgPeIQp9Y3qIkTBPieQYNkQ13Kxe7pze9Wb0=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/igm/sockjs-go/v3 v3.0.2 h1:2m0k53w0DBiGozeQUIEPR6snZFmpFpYvVsGnfLPNXbE=
@@ -202,6 +211,8 @@ github.com/mattn/go-isatty v0.0.11 h1:FxPOTFNqGkuDUGi3H/qkUbQO4ZiBa2brKq5r0l8TGe
 github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE=
 github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/miekg/dns v0.0.0-20161006100029-fc4e1e2843d8 h1:ALvJ9V8nNf04PFHMR2sot56N/pjrx5LzZGvUlnhdiCE=
+github.com/miekg/dns v0.0.0-20161006100029-fc4e1e2843d8/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
@@ -217,6 +228,7 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/sftp v1.13.1/go.mod h1:3HaPG6Dq1ILlpPZRO0HVMrsydcdLt6HRDccSgb87qRg=
+github.com/pmezard/go-difflib v0.0.0-20151028094244-d8ed2627bdf0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
@@ -229,11 +241,13 @@ github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAm
 github.com/spf13/afero v1.9.3 h1:41FoI0fD7OR7mGcKE/aOiLkGreyf8ifIOQmJANWogMk=
 github.com/spf13/afero v1.9.3/go.mod h1:iUV7ddyEEZPO5gA3zD4fJt6iStLlL+Lg4m2cihcDf8Y=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.1.5-0.20160925220609-976c720a22c8/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli/v2 v2.24.3 h1:7Q1w8VN8yE0MJEHP06bv89PjYsN4IHWED2s1v/Zlfm0=
 github.com/urfave/cli/v2 v2.24.3/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
@@ -299,6 +313,7 @@ golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 h1:6zppjxzCulZykYSLyVDYbneBfbaBIQPYMevg0bEwv2s=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/net v0.0.0-20161013035702-8b4af36cd21a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=

pkg/app/server.go

@@ -145,7 +145,7 @@ func (s *Server) Stop() {
 func (s *Server) initModules(factories ...ServerModuleFactory) {
 	runtime := goja.New()
 
-	runtime.SetFieldNameMapper(goja.UncapFieldNameMapper())
+	runtime.SetFieldNameMapper(goja.TagFieldNameMapper("goja", true))
 	runtime.SetRandSource(createRandomSource())
 
 	modules := make([]ServerModule, 0, len(factories))

pkg/module/cast/cast.go

@@ -0,0 +1,209 @@
+package cast
+
+import (
+	"context"
+	"net"
+	"time"
+
+	"github.com/barnybug/go-cast"
+	"github.com/barnybug/go-cast/discovery"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/logger"
+)
+
+type Device struct {
+	UUID string `goja:"uuid"`
+	Host net.IP `goja:"host"`
+	Port int    `goja:"port"`
+	Name string `goja:"name"`
+}
+
+type DeviceStatus struct {
+	CurrentApp DeviceStatusCurrentApp `goja:"currentApp"`
+	Volume     DeviceStatusVolume     `goja:"volume"`
+}
+
+type DeviceStatusCurrentApp struct {
+	ID          string `goja:"id"`
+	DisplayName string `goja:"displayName"`
+	StatusText  string `goja:"statusText"`
+}
+
+type DeviceStatusVolume struct {
+	Level float64 `goja:"level"`
+	Muted bool    `goja:"muted"`
+}
+
+const (
+	serviceDiscoveryPollingInterval time.Duration = 2 * time.Second
+)
+
+func getDeviceClientByUUID(ctx context.Context, uuid string) (*cast.Client, error) {
+	device, err := findDeviceByUUID(ctx, uuid)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	client := cast.NewClient(device.Host, device.Port)
+
+	return client, nil
+}
+
+func findDeviceByUUID(ctx context.Context, uuid string) (*Device, error) {
+	service := discovery.NewService(ctx)
+	defer service.Stop()
+
+	go func() {
+		if err := service.Run(ctx, serviceDiscoveryPollingInterval); err != nil {
+			logger.Error(ctx, "error while running cast service discovery", logger.E(errors.WithStack(err)))
+		}
+	}()
+
+LOOP:
+	for {
+		select {
+		case c := <-service.Found():
+			if c.Uuid() == uuid {
+				return &Device{
+					Host: c.IP().To4(),
+					Port: c.Port(),
+					Name: c.Name(),
+					UUID: c.Uuid(),
+				}, nil
+			}
+		case <-ctx.Done():
+			break LOOP
+		}
+	}
+
+	if err := ctx.Err(); err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return nil, errors.WithStack(ErrDeviceNotFound)
+}
+
+func findDevices(ctx context.Context) ([]*Device, error) {
+	service := discovery.NewService(ctx)
+	defer service.Stop()
+
+	go func() {
+		if err := service.Run(ctx, serviceDiscoveryPollingInterval); err != nil && !errors.Is(err, context.DeadlineExceeded) {
+			logger.Error(ctx, "error while running cast service discovery", logger.E(errors.WithStack(err)))
+		}
+	}()
+
+	devices := make([]*Device, 0)
+	found := make(map[string]struct{})
+
+LOOP:
+	for {
+		select {
+		case c := <-service.Found():
+			if _, exists := found[c.Uuid()]; exists {
+				continue
+			}
+
+			devices = append(devices, &Device{
+				Host: c.IP().To4(),
+				Port: c.Port(),
+				Name: c.Name(),
+				UUID: c.Uuid(),
+			})
+			found[c.Uuid()] = struct{}{}
+
+		case <-ctx.Done():
+			break LOOP
+		}
+	}
+
+	if err := ctx.Err(); err != nil && !errors.Is(err, context.DeadlineExceeded) {
+		return nil, errors.WithStack(err)
+	}
+
+	return devices, nil
+}
+
+func loadURL(ctx context.Context, deviceUUID string, url string) error {
+	client, err := getDeviceClientByUUID(ctx, deviceUUID)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	if err := client.Connect(ctx); err != nil {
+		return errors.WithStack(err)
+	}
+	defer client.Close()
+
+	controller, err := client.URL(ctx)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	// Ignore context.DeadlineExceeded errors. github.com/barnybug/go-cast bug ?
+	if _, err := controller.LoadURL(ctx, url); err != nil && !isLoadURLContextExceeded(err) {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+// False positive workaround.
+func isLoadURLContextExceeded(err error) bool {
+	return err.Error() == "Failed to send load command: context deadline exceeded"
+}
+
+func stopCast(ctx context.Context, deviceUUID string) error {
+	client, err := getDeviceClientByUUID(ctx, deviceUUID)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	if err := client.Connect(ctx); err != nil {
+		return errors.WithStack(err)
+	}
+	defer client.Close()
+
+	if _, err := client.Receiver().QuitApp(ctx); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+func getStatus(ctx context.Context, deviceUUID string) (*DeviceStatus, error) {
+	client, err := getDeviceClientByUUID(ctx, deviceUUID)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	if err := client.Connect(ctx); err != nil {
+		return nil, errors.WithStack(err)
+	}
+	defer client.Close()
+
+	ctrlStatus, err := client.Receiver().GetStatus(ctx)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	status := &DeviceStatus{
+		CurrentApp: DeviceStatusCurrentApp{
+			ID:          "",
+			DisplayName: "",
+			StatusText:  "",
+		},
+		Volume: DeviceStatusVolume{
+			Level: *ctrlStatus.Volume.Level,
+			Muted: *ctrlStatus.Volume.Muted,
+		},
+	}
+
+	if len(ctrlStatus.Applications) > 0 {
+		status.CurrentApp.ID = *ctrlStatus.Applications[0].AppID
+		status.CurrentApp.DisplayName = *ctrlStatus.Applications[0].DisplayName
+		status.CurrentApp.StatusText = *ctrlStatus.Applications[0].StatusText
+	}
+
+	return status, nil
+}

pkg/module/cast/cast_test.go

@@ -0,0 +1,63 @@
+package cast
+
+import (
+	"context"
+	"os"
+	"testing"
+	"time"
+
+	"cdr.dev/slog"
+	"github.com/davecgh/go-spew/spew"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/logger"
+)
+
+func TestCastLoadURL(t *testing.T) {
+	t.Parallel()
+
+	if os.Getenv("TEST_CAST_MODULE") != "yes" {
+		t.Skip("Test skipped. Set environment variable TEST_CAST_MODULE=yes to run.")
+
+		return
+	}
+
+	logger.SetLevel(slog.LevelDebug)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	devices, err := findDevices(ctx)
+	if err != nil {
+		t.Error(errors.WithStack(err))
+	}
+
+	if e, g := 1, len(devices); e != g {
+		t.Fatalf("len(devices): expected '%v', got '%v'", e, g)
+	}
+
+	dev := devices[0]
+
+	ctx, cancel2 := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel2()
+
+	if err := loadURL(ctx, dev.UUID, "https://go.dev"); err != nil {
+		t.Error(errors.WithStack(err))
+	}
+
+	ctx, cancel3 := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel3()
+
+	status, err := getStatus(ctx, dev.UUID)
+	if err != nil {
+		t.Error(errors.WithStack(err))
+	}
+
+	spew.Dump(status)
+
+	ctx, cancel4 := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel4()
+
+	if err := stopCast(ctx, dev.UUID); err != nil {
+		t.Error(errors.WithStack(err))
+	}
+}

pkg/module/cast/error.go

@@ -0,0 +1,5 @@
+package cast
+
+import "errors"
+
+var ErrDeviceNotFound = errors.New("device not found")

pkg/module/cast/module.go

@@ -0,0 +1,263 @@
+package cast
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"forge.cadoles.com/arcad/edge/pkg/app"
+	"forge.cadoles.com/arcad/edge/pkg/module"
+	"github.com/dop251/goja"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/logger"
+)
+
+const (
+	defaultTimeout = 30 * time.Second
+)
+
+type Module struct {
+	ctx    context.Context
+	server *app.Server
+	mutex  struct {
+		devices        sync.RWMutex
+		refreshDevices sync.Mutex
+		loadURL        sync.Mutex
+		quitApp        sync.Mutex
+		getStatus      sync.Mutex
+	}
+	devices []*Device
+}
+
+func (m *Module) Name() string {
+	return "cast"
+}
+
+func (m *Module) Export(export *goja.Object) {
+	if err := export.Set("refreshDevices", m.refreshDevices); err != nil {
+		panic(errors.Wrap(err, "could not set 'refreshDevices' function"))
+	}
+
+	if err := export.Set("getDevices", m.getDevices); err != nil {
+		panic(errors.Wrap(err, "could not set 'getDevices' function"))
+	}
+
+	if err := export.Set("loadUrl", m.loadUrl); err != nil {
+		panic(errors.Wrap(err, "could not set 'loadUrl' function"))
+	}
+
+	if err := export.Set("stopCast", m.stopCast); err != nil {
+		panic(errors.Wrap(err, "could not set 'stopCast' function"))
+	}
+
+	if err := export.Set("getStatus", m.getStatus); err != nil {
+		panic(errors.Wrap(err, "could not set 'getStatus' function"))
+	}
+}
+
+func (m *Module) refreshDevices(call goja.FunctionCall, rt *goja.Runtime) goja.Value {
+	rawTimeout := call.Argument(0).String()
+
+	timeout, err := m.parseTimeout(rawTimeout)
+	if err != nil {
+		panic(errors.WithStack(err))
+	}
+
+	promise := m.server.NewPromise()
+
+	go func() {
+		m.mutex.refreshDevices.Lock()
+		defer m.mutex.refreshDevices.Unlock()
+
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		devices, err := findDevices(ctx)
+		if err != nil && !errors.Is(err, context.DeadlineExceeded) {
+			err = errors.WithStack(err)
+			logger.Error(ctx, "error refreshing casting devices list", logger.E(errors.WithStack(err)))
+
+			promise.Reject(err)
+
+			return
+		}
+
+		if err == nil {
+			m.mutex.devices.Lock()
+			m.devices = devices
+			m.mutex.devices.Unlock()
+		}
+
+		devicesCopy := m.getDevicesCopy(devices)
+		promise.Resolve(devicesCopy)
+	}()
+
+	return rt.ToValue(promise)
+}
+
+func (m *Module) getDevices(call goja.FunctionCall, rt *goja.Runtime) goja.Value {
+	m.mutex.devices.RLock()
+	defer m.mutex.devices.RUnlock()
+
+	devices := m.getDevicesCopy(m.devices)
+
+	return rt.ToValue(devices)
+}
+
+func (m *Module) loadUrl(call goja.FunctionCall, rt *goja.Runtime) goja.Value {
+	if len(call.Arguments) < 2 {
+		panic(errors.WithStack(module.ErrUnexpectedArgumentsNumber))
+	}
+
+	deviceUUID := call.Argument(0).String()
+	url := call.Argument(1).String()
+
+	rawTimeout := call.Argument(2).String()
+
+	timeout, err := m.parseTimeout(rawTimeout)
+	if err != nil {
+		panic(errors.WithStack(err))
+	}
+
+	promise := m.server.NewPromise()
+
+	go func() {
+		m.mutex.loadURL.Lock()
+		defer m.mutex.loadURL.Unlock()
+
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		err := loadURL(ctx, deviceUUID, url)
+		if err != nil {
+			err = errors.WithStack(err)
+			logger.Error(ctx, "error while casting url", logger.E(err))
+
+			promise.Reject(err)
+
+			return
+		}
+
+		promise.Resolve(nil)
+	}()
+
+	return m.server.ToValue(promise)
+}
+
+func (m *Module) stopCast(call goja.FunctionCall) goja.Value {
+	if len(call.Arguments) < 1 {
+		panic(errors.WithStack(module.ErrUnexpectedArgumentsNumber))
+	}
+
+	deviceUUID := call.Argument(0).String()
+	rawTimeout := call.Argument(1).String()
+
+	timeout, err := m.parseTimeout(rawTimeout)
+	if err != nil {
+		panic(errors.WithStack(err))
+	}
+
+	promise := m.server.NewPromise()
+
+	go func() {
+		m.mutex.quitApp.Lock()
+		defer m.mutex.quitApp.Unlock()
+
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		err := stopCast(ctx, deviceUUID)
+		if err != nil {
+			err = errors.WithStack(err)
+			logger.Error(ctx, "error while quitting casting device app", logger.E(errors.WithStack(err)))
+
+			promise.Reject(err)
+
+			return
+		}
+
+		promise.Resolve(nil)
+	}()
+
+	return m.server.ToValue(promise)
+}
+
+func (m *Module) getStatus(call goja.FunctionCall) goja.Value {
+	if len(call.Arguments) < 1 {
+		panic(errors.WithStack(module.ErrUnexpectedArgumentsNumber))
+	}
+
+	deviceUUID := call.Argument(0).String()
+	rawTimeout := call.Argument(1).String()
+
+	timeout, err := m.parseTimeout(rawTimeout)
+	if err != nil {
+		panic(errors.WithStack(err))
+	}
+
+	promise := m.server.NewPromise()
+
+	go func() {
+		m.mutex.getStatus.Lock()
+		defer m.mutex.getStatus.Unlock()
+
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		status, err := getStatus(ctx, deviceUUID)
+		if err != nil {
+			err = errors.WithStack(err)
+			logger.Error(ctx, "error while getting casting device status", logger.E(err))
+
+			promise.Reject(err)
+
+			return
+		}
+
+		promise.Resolve(status)
+	}()
+
+	return m.server.ToValue(promise)
+}
+
+func (m *Module) getDevicesCopy(devices []*Device) []Device {
+	devicesCopy := make([]Device, 0, len(m.devices))
+
+	for _, d := range devices {
+		devicesCopy = append(devicesCopy, Device{
+			UUID: d.UUID,
+			Name: d.Name,
+			Host: d.Host,
+			Port: d.Port,
+		})
+	}
+
+	return devicesCopy
+}
+
+func (m *Module) parseTimeout(rawTimeout string) (time.Duration, error) {
+	var (
+		timeout time.Duration
+		err     error
+	)
+
+	if rawTimeout == "undefined" {
+		timeout = defaultTimeout
+	} else {
+		timeout, err = time.ParseDuration(rawTimeout)
+		if err != nil {
+			return defaultTimeout, errors.Wrapf(err, "invalid duration format '%s'", rawTimeout)
+		}
+	}
+
+	return timeout, nil
+}
+
+func CastModuleFactory() app.ServerModuleFactory {
+	return func(server *app.Server) app.ServerModule {
+		return &Module{
+			server:  server,
+			devices: make([]*Device, 0),
+		}
+	}
+}

pkg/module/cast/module_test.go

@@ -0,0 +1,95 @@
+package cast
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+	"time"
+
+	"cdr.dev/slog"
+	"forge.cadoles.com/arcad/edge/pkg/app"
+	"forge.cadoles.com/arcad/edge/pkg/module"
+	"github.com/davecgh/go-spew/spew"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/logger"
+)
+
+func TestCastModule(t *testing.T) {
+	t.Parallel()
+
+	if os.Getenv("TEST_CAST_MODULE") != "yes" {
+		t.Skip("Test skipped. Set environment variable TEST_CAST_MODULE=yes to run.")
+
+		return
+	}
+
+	logger.SetLevel(slog.LevelDebug)
+
+	server := app.NewServer(
+		module.ConsoleModuleFactory(),
+		CastModuleFactory(),
+	)
+
+	data, err := ioutil.ReadFile("testdata/cast.js")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := server.Load("testdata/cast.js", string(data)); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := server.Start(); err != nil {
+		t.Fatalf("%+v", errors.WithStack(err))
+	}
+
+	defer server.Stop()
+
+	time.Sleep(20 * time.Second)
+}
+
+func TestCastModuleRefreshDevices(t *testing.T) {
+	t.Parallel()
+
+	if os.Getenv("TEST_CAST_MODULE") != "yes" {
+		t.Skip("Test skipped. Set environment variable TEST_CAST_MODULE=yes to run.")
+
+		return
+	}
+
+	logger.SetLevel(slog.LevelDebug)
+
+	server := app.NewServer(
+		module.ConsoleModuleFactory(),
+		CastModuleFactory(),
+	)
+
+	data, err := ioutil.ReadFile("testdata/refresh_devices.js")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := server.Load("testdata/refresh_devices.js", string(data)); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := server.Start(); err != nil {
+		t.Fatalf("%+v", errors.WithStack(err))
+	}
+
+	defer server.Stop()
+
+	result, err := server.ExecFuncByName("refreshDevices")
+	if err != nil {
+		t.Error(errors.WithStack(err))
+	}
+
+	promise, ok := server.IsPromise(result)
+	if !ok {
+		t.Fatal("expected promise")
+	}
+
+	value := server.WaitForPromise(promise)
+
+	spew.Dump(value.Export())
+}

pkg/module/cast/testdata/cast.js

@@ -0,0 +1,21 @@
+
+cast.refreshDevices('5s')
+  .then(function(devices) {  
+    console.log(devices)
+  
+    if (devices === null) {
+      throw new Error("devices should not be null");
+    }
+    
+    if (devices.length === 0) {
+      throw new Error("devices.length should not be 0");
+    }
+
+    return devices
+  })
+  .then(function(devices) {
+    return cast.getStatus(devices[0].uuid)
+  })
+  .then(function(status) {
+    console.log(status)
+  })

pkg/module/cast/testdata/refresh_devices.js

@@ -0,0 +1,6 @@
+function refreshDevices() {
+  return cast.refreshDevices('5s')
+    .then(function(devices) {
+      return devices
+    })
+}