Remove service.Provider interface

This commit removes the service.Provider interface since web/api can use
service.Host itself as an implementation for retrieving components and
services.

Signed-off-by: Paschalis Tsilias <[email protected]>

pkg/flow/flow_services.go

@@ -26,6 +26,8 @@ func (f *Flow) GetServiceConsumers(serviceName string) []service.Consumer {
 	return consumers
 }
 
+// GetService implements [service.Host]. It looks up a [service.Service] by
+// name.
 func (f *Flow) GetService(name string) (service.Service, bool) {
 	for _, svc := range f.opts.Services {
 		if svc.Definition().Name == name {

service/service.go

@@ -37,12 +37,6 @@ type Definition struct {
 	DependsOn []string
 }
 
-// A Provider exposes information around services.
-type Provider interface {
-	// GetService looks up a running service using its name.
-	GetService(name string) (Service, bool)
-}
-
 // Host is a controller for services and Flow components.
 type Host interface {
 	// GetComponent gets a running component by ID.

web/api/api.go

@@ -18,16 +18,11 @@ import (
 
 // FlowAPI is a wrapper around the component API.
 type FlowAPI struct {
-	flow Provider
-}
-
-type Provider interface {
-	component.Provider
-	service.Provider
+	flow service.Host
 }
 
 // NewFlowAPI instantiates a new Flow API.
-func NewFlowAPI(flow Provider) *FlowAPI {
+func NewFlowAPI(flow service.Host) *FlowAPI {
 	return &FlowAPI{flow: flow}
 }