Merge pull request #28 from jwetzell/feat/artnet-module

add artnet module and processors

go.mod

@@ -1,12 +1,13 @@
 module github.com/jwetzell/showbridge-go
 
-go 1.25.3
+go 1.25.5
 
 require (
 	github.com/eclipse/paho.mqtt.golang v1.5.1
 	github.com/emiago/diago v0.23.1-0.20251211215055-e1d875617111
 	github.com/emiago/sipgo v1.0.1
 	github.com/expr-lang/expr v1.17.7
+	github.com/jwetzell/artnet-go v0.0.0-20251223201031-5097901aa9db
 	github.com/jwetzell/free-d-go v0.1.0
 	github.com/jwetzell/osc-go v0.1.0
 	github.com/jwetzell/psn-go v0.3.0

go.sum

@@ -30,6 +30,8 @@ github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs
 github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/icholy/digest v1.1.0 h1:HfGg9Irj7i+IX1o1QAmPfIBNu/Q5A5Tu3n/MED9k9H4=
 github.com/icholy/digest v1.1.0/go.mod h1:QNrsSGQ5v7v9cReDI0+eyjsXGUoRSUZQHeQ5C4XLa0Y=
+github.com/jwetzell/artnet-go v0.0.0-20251223201031-5097901aa9db h1:PR9sdDEWBufi8/3yiQHRXncLNKUHBMKiEBDtdNWsK/E=
+github.com/jwetzell/artnet-go v0.0.0-20251223201031-5097901aa9db/go.mod h1:gli97Z32a0kMkZ6taoTiK7/lqHcF/dhiGjGJdx/PxqA=
 github.com/jwetzell/free-d-go v0.1.0 h1:xHt6dvyit98X+OC3jVzV0aLidxbyzi3vI9QiYkteEtA=
 github.com/jwetzell/free-d-go v0.1.0/go.mod h1:KmrkooRARRaxJTBSPvwt/6IMAIaHH1R8bSA8cwbbELw=
 github.com/jwetzell/osc-go v0.1.0 h1:EXxup5VWBErHot2Ri4MFToPf6KCzLDTbCt2x6GLfw8I=

internal/processor/artnet-packet-decode.go

@@ -0,0 +1,42 @@
+package processor
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/jwetzell/artnet-go"
+	"github.com/jwetzell/showbridge-go/internal/config"
+)
+
+type ArtNetPacketDecode struct {
+	config config.ProcessorConfig
+}
+
+func (apd *ArtNetPacketDecode) Process(ctx context.Context, payload any) (any, error) {
+	payloadBytes, ok := payload.([]byte)
+
+	if !ok {
+		return nil, fmt.Errorf("artnet.packet.decode processor only accepts a []byte")
+	}
+
+	payloadMessage, err := artnet.Decode(payloadBytes)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return payloadMessage, nil
+}
+
+func (apd *ArtNetPacketDecode) Type() string {
+	return apd.config.Type
+}
+
+func init() {
+	RegisterProcessor(ProcessorRegistration{
+		Type: "artnet.packet.decode",
+		New: func(config config.ProcessorConfig) (Processor, error) {
+			return &ArtNetPacketDecode{config: config}, nil
+		},
+	})
+}

internal/processor/artnet-packet-encode.go

@@ -0,0 +1,41 @@
+package processor
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/jwetzell/artnet-go"
+	"github.com/jwetzell/showbridge-go/internal/config"
+)
+
+type ArtNetPacketEncode struct {
+	config config.ProcessorConfig
+}
+
+func (ape *ArtNetPacketEncode) Process(ctx context.Context, payload any) (any, error) {
+	payloadPacket, ok := payload.(artnet.ArtNetPacket)
+
+	if !ok {
+		return nil, fmt.Errorf("artnet.packet.encode processor only accepts an ArtNetPacket")
+	}
+
+	payloadBytes, err := payloadPacket.MarshalBinary()
+	if err != nil {
+		return nil, err
+	}
+
+	return payloadBytes, nil
+}
+
+func (ape *ArtNetPacketEncode) Type() string {
+	return ape.config.Type
+}
+
+func init() {
+	RegisterProcessor(ProcessorRegistration{
+		Type: "artnet.packet.encode",
+		New: func(config config.ProcessorConfig) (Processor, error) {
+			return &ArtNetPacketEncode{config: config}, nil
+		},
+	})
+}

internal/processor/artnet-packet-filter.go

@@ -0,0 +1,52 @@
+package processor
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/jwetzell/artnet-go"
+	"github.com/jwetzell/showbridge-go/internal/config"
+)
+
+type ArtNetPacketFilter struct {
+	config config.ProcessorConfig
+	OpCode uint16
+}
+
+func (apf *ArtNetPacketFilter) Process(ctx context.Context, payload any) (any, error) {
+	payloadPacket, ok := payload.(artnet.ArtNetPacket)
+
+	if !ok {
+		return nil, fmt.Errorf("artnet.packet.filter processor only accepts an ArtNetPacket")
+	}
+
+	if payloadPacket.GetOpCode() != apf.OpCode {
+		return nil, nil
+	}
+
+	return payloadPacket, nil
+}
+
+func (apf *ArtNetPacketFilter) Type() string {
+	return apf.config.Type
+}
+
+func init() {
+	RegisterProcessor(ProcessorRegistration{
+		Type: "artnet.packet.filter",
+		New: func(config config.ProcessorConfig) (Processor, error) {
+			params := config.Params
+
+			opCode, ok := params["opCode"]
+			if !ok {
+				return nil, fmt.Errorf("artnet.packet.filter requires an opCode parameter")
+			}
+			opCodeNum, ok := opCode.(float64)
+			if !ok {
+				return nil, fmt.Errorf("artnet.packet.filter opCode must be a number")
+			}
+
+			return &ArtNetPacketFilter{config: config, OpCode: uint16(opCodeNum)}, nil
+		},
+	})
+}