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main.go
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main.go
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package main
import (
"context"
"encoding/json"
"fmt"
"log"
"os"
"path/filepath"
"time"
"github.com/hrko/streamdeck"
sdcontext "github.com/hrko/streamdeck/context"
"github.com/onyx-and-iris/voicemeeter/v2"
"github.com/hrko/streamdeck-voicemeeter/internal/action/gain_controll"
"github.com/hrko/streamdeck-voicemeeter/internal/action/gain_controll_combo"
"github.com/hrko/streamdeck-voicemeeter/internal/action/macro"
"github.com/hrko/streamdeck-voicemeeter/pkg/graphics"
)
var (
chGlobalSettings chan *GlobalSettings
)
type GlobalSettings struct {
VoiceMeeterKind string `json:"voiceMeeterKind"`
}
func main() {
log.SetPrefix("package main: ")
streamdeck.Log().SetOutput(os.Stderr)
streamdeck.Log().SetPrefix("package streamdeck: ")
cacheDir := setupPluginCacheDir()
graphics.SetMaterialSymbolsCacheDir(cacheDir)
ctx := context.Background()
log.Println("Starting voicemeeter-streamdeck-plugin")
if err := run(ctx); err != nil {
panic(err)
}
}
func setupPluginCacheDir() string {
userCacheDir := ""
userCacheDir, err := os.UserCacheDir()
if err != nil {
log.Printf("error getting user cache dir: %v, fallback to temp dir\n", err)
userCacheDir = os.TempDir()
}
cacheDir := filepath.Join(userCacheDir, "streamdeck-voicemeeter")
if err := os.MkdirAll(cacheDir, 0755); err != nil {
log.Printf("error creating cache dir: %v\n", err)
}
return cacheDir
}
func run(ctx context.Context) error {
params, err := streamdeck.ParseRegistrationParams(os.Args)
if err != nil {
return err
}
log.Printf("Registration params: %v", params)
client := streamdeck.NewClient(ctx, params)
log.Println("Client created")
registerNoActionHandlers(client)
gain_controll.SetupPreClientRun(client)
gain_controll_combo.SetupPreClientRun(client)
macro.SetupPreClientRun(client)
chErr := make(chan error)
go func() {
log.Println("Starting client")
chErr <- client.Run(ctx)
}()
waitClientConnected(client)
globalSettings, err := fetchGlobalSettings(ctx, client)
if err != nil {
log.Fatal(err)
}
log.Printf("Global settings: %v\n", globalSettings)
vm, err := loginVoicemeeter(globalSettings.VoiceMeeterKind)
if err != nil {
log.Fatal(err)
}
defer vm.Logout()
vm.EventAdd("ldirty")
go gain_controll.SetupPostClientRun(client, vm)
go gain_controll_combo.SetupPostClientRun(client, vm)
go macro.SetupPostClientRun(client, vm)
return <-chErr
}
func registerNoActionHandlers(client *streamdeck.Client) {
chGlobalSettings = make(chan *GlobalSettings)
client.RegisterNoActionHandler(streamdeck.DidReceiveGlobalSettings, func(ctx context.Context, client *streamdeck.Client, event streamdeck.Event) error {
payload := new(struct {
Settings *GlobalSettings `json:"settings"`
})
err := json.Unmarshal(event.Payload, payload)
if err != nil {
log.Printf("error unmarshaling payload: %v\n", err)
return err
}
select {
case chGlobalSettings <- payload.Settings:
log.Println("global settings received and sent to channel")
default:
log.Println("global settings received but no one is waiting for channel")
}
return nil
})
}
func fetchGlobalSettings(ctx context.Context, client *streamdeck.Client) (*GlobalSettings, error) {
if !client.IsConnected() {
return nil, fmt.Errorf("client is not connected")
}
var gs *GlobalSettings
eventReceived := make(chan struct{})
defer close(eventReceived)
go func() {
gs = <-chGlobalSettings
eventReceived <- struct{}{}
}()
ctx = sdcontext.WithContext(ctx, client.UUID())
if err := client.GetGlobalSettings(ctx); err != nil {
return nil, err
}
select {
case <-eventReceived:
return gs, nil
case <-ctx.Done():
return nil, ctx.Err()
}
}
func loginVoicemeeter(kindId string) (*voicemeeter.Remote, error) {
switch kindId {
case "basic", "banana", "potato":
default:
log.Printf("unknown kindId: '%v', fallback to 'basic'\n", kindId)
kindId = "basic"
}
vm, err := voicemeeter.NewRemote(kindId, 0)
if err != nil {
return nil, err
}
log.Println("Login to voicemeeter")
err = vm.Login()
if err != nil {
return nil, err
}
return vm, nil
}
func waitClientConnected(client *streamdeck.Client) error {
if !client.IsConnected() {
log.Println("Waiting for client to connect")
for !client.IsConnected() {
time.Sleep(time.Second / 10)
}
}
return nil
}