move route and module into internal

internal/module/midi-client.go

@@ -0,0 +1,118 @@
+//go:build cgo
+
+package module
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+
+	"github.com/jwetzell/showbridge-go/internal/config"
+	"github.com/jwetzell/showbridge-go/internal/route"
+	"gitlab.com/gomidi/midi/v2"
+	_ "gitlab.com/gomidi/midi/v2/drivers/rtmididrv"
+)
+
+type MIDIClient struct {
+	config     config.ModuleConfig
+	ctx        context.Context
+	router     route.RouteIO
+	InputPort  string
+	OutputPort string
+	SendFunc   func(midi.Message) error
+}
+
+func init() {
+	RegisterModule(ModuleRegistration{
+		//TODO(jwetzell): find a better namespace than "misc"
+		Type: "misc.midi.client",
+		New: func(ctx context.Context, config config.ModuleConfig, router route.RouteIO) (Module, error) {
+			params := config.Params
+			input, ok := params["input"]
+
+			if !ok {
+				return nil, fmt.Errorf("misc.midi.client requires a input parameter")
+			}
+
+			inputString, ok := input.(string)
+
+			if !ok {
+				return nil, fmt.Errorf("misc.midi.client input must be a string")
+			}
+
+			output, ok := params["output"]
+
+			if !ok {
+				return nil, fmt.Errorf("misc.midi.client requires a output parameter")
+			}
+
+			outputString, ok := output.(string)
+
+			if !ok {
+				return nil, fmt.Errorf("misc.midi.client output must be a string")
+			}
+
+			return &MIDIClient{config: config, InputPort: inputString, OutputPort: outputString, ctx: ctx, router: router}, nil
+		},
+	})
+}
+
+func (mc *MIDIClient) Id() string {
+	return mc.config.Id
+}
+
+func (mc *MIDIClient) Type() string {
+	return mc.config.Type
+}
+
+func (mc *MIDIClient) Run() error {
+	defer midi.CloseDriver()
+
+	in, err := midi.FindInPort(mc.InputPort)
+	if err != nil {
+		return fmt.Errorf("misc.midi.client can't find input port: %s", mc.InputPort)
+	}
+
+	stop, err := midi.ListenTo(in, func(msg midi.Message, timestampms int32) {
+		if mc.router != nil {
+			mc.router.HandleInput(mc.Id(), msg)
+		}
+	}, midi.UseSysEx())
+
+	if err != nil {
+		return err
+	}
+
+	defer stop()
+
+	out, err := midi.FindOutPort(mc.OutputPort)
+
+	if err != nil {
+		return fmt.Errorf("misc.midi.client can't find output port: %s", mc.OutputPort)
+	}
+
+	send, err := midi.SendTo(out)
+	if err != nil {
+		return err
+	}
+
+	mc.SendFunc = send
+
+	<-mc.ctx.Done()
+	slog.Debug("router context done in module", "id", mc.config.Id)
+	return nil
+}
+
+func (mc *MIDIClient) Output(payload any) error {
+	if mc.SendFunc == nil {
+		return fmt.Errorf("misc.midi.client output is not setup")
+	}
+
+	payloadMessage, ok := payload.(midi.Message)
+
+	if !ok {
+		return fmt.Errorf("misc.midi.client can only ouptut midi.Message")
+	}
+
+	return mc.SendFunc(payloadMessage)
+}