move route and module into internal

internal/route/route.go

@@ -0,0 +1,86 @@
+package route
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/jwetzell/showbridge-go/internal/config"
+	"github.com/jwetzell/showbridge-go/internal/processing"
+)
+
+type RouteError struct {
+	Index  int
+	Config config.RouteConfig
+	Error  error
+}
+
+type RouteIOError struct {
+	Index int
+	Error error
+}
+
+type RouteIO interface {
+	HandleInput(sourceId string, payload any) []RouteIOError
+	HandleOutput(sourceId string, destinationId string, payload any) error
+}
+
+type Route interface {
+	Input() string
+	Output() string
+	HandleInput(ctx context.Context, sourceId string, payload any, router RouteIO) error
+	HandleOutput(ctx context.Context, sourceId string, payload any, router RouteIO) error
+}
+
+type ProcessorRoute struct {
+	input      string
+	processors []processing.Processor
+	output     string
+}
+
+func NewRoute(config config.RouteConfig) (Route, error) {
+	processors := []processing.Processor{}
+
+	if len(config.Processors) > 0 {
+		for _, processorDecl := range config.Processors {
+			processorInfo, ok := processing.ProcessorRegistry[processorDecl.Type]
+			if !ok {
+				return nil, fmt.Errorf("problem loading processor registration for processor type: %s", processorDecl.Type)
+			}
+
+			processor, err := processorInfo.New(processorDecl)
+			if err != nil {
+				return nil, err
+			}
+			processors = append(processors, processor)
+		}
+	}
+
+	return &ProcessorRoute{input: config.Input, processors: processors, output: config.Output}, nil
+}
+
+func (r *ProcessorRoute) Input() string {
+	return r.input
+}
+
+func (r *ProcessorRoute) Output() string {
+	return r.output
+}
+
+func (r *ProcessorRoute) HandleInput(ctx context.Context, sourceId string, payload any, router RouteIO) error {
+	var err error
+	for _, processor := range r.processors {
+		payload, err = processor.Process(ctx, payload)
+		if err != nil {
+			return err
+		}
+		//NOTE(jwetzell) nil payload will result in the route being "terminated"
+		if payload == nil {
+			return nil
+		}
+	}
+	return r.HandleOutput(ctx, sourceId, payload, router)
+}
+
+func (r *ProcessorRoute) HandleOutput(ctx context.Context, sourceId string, payload any, router RouteIO) error {
+	return router.HandleOutput(sourceId, r.output, payload)
+}