switch modules to accept an InputHandler instead of the full router

internal/common/module.go

@@ -8,7 +8,7 @@ import (
 type Module interface {
 	Id() string
 	Type() string
-	Start(context.Context, RouteIO) error
+	Start(context.Context, InputHandler) error
 	Stop()
 }
 

internal/common/payload.go

@@ -1,9 +1,9 @@
 package common
 
 type WrappedPayload struct {
-	Payload any
-	Router  RouteIO
-	Modules map[string]Module
-	Source  string
-	End     bool
+	Payload      any
+	InputHandler InputHandler
+	Modules      map[string]Module
+	Source       string
+	End          bool
 }

internal/common/routing.go

@@ -4,9 +4,7 @@ import (
 	"context"
 )
 
-type RouteIO interface {
-	HandleInput(ctx context.Context, sourceId string, payload any) (bool, []RouteIOError)
-}
+type InputHandler func(ctx context.Context, sourceId string, payload any) (bool, []RouteIOError)
 
 type RouteIOError struct {
 	Index        int   `json:"index"`