chore: remove subscriber (#16)

internal/cache/cache.go

@@ -10,7 +10,7 @@ import (
 type WorkspaceConfigCache struct {
 	configs        *modelv2.WorkspaceConfigs
 	updateLock     sync.Mutex
-	subscribers    []*Subscriber
+	subscribers    []chan notifications.WorkspaceConfigNotification
 	subscriberLock sync.Mutex
 }
 
@@ -44,7 +44,7 @@ func (c *WorkspaceConfigCache) Set(configs *modelv2.WorkspaceConfigs) {
 	defer c.subscriberLock.Unlock()
 
 	for _, subscriber := range c.subscribers {
-		subscriber.notify(notifications.WorkspaceConfigNotification{})
+		subscriber <- notifications.WorkspaceConfigNotification{}
 	}
 }
 
@@ -86,13 +86,12 @@ func (c *WorkspaceConfigCache) merge(configs *modelv2.WorkspaceConfigs) {
 // Subscribers are notified in the order they are subscribed.
 // They can monitor for updates by reading from the notifications channel, provided by the Notifications function.
 // It is expected to handle any notifications in a timely manner, otherwise it will block the cache from updating.
-func (c *WorkspaceConfigCache) Subscribe() *Subscriber {
+func (c *WorkspaceConfigCache) Subscribe() chan notifications.WorkspaceConfigNotification {
 	c.subscriberLock.Lock()
 	defer c.subscriberLock.Unlock()
 
-	subscriber := &Subscriber{
-		notifications: make(chan notifications.WorkspaceConfigNotification),
-	}
+	subscriber := make(chan notifications.WorkspaceConfigNotification)
+
 	c.subscribers = append(c.subscribers, subscriber)
 
 	return subscriber

internal/cache/cache_test.go

@@ -30,7 +30,7 @@ func TestCacheSubscriptions(t *testing.T) {
 	wg := sync.WaitGroup{}
 	wg.Add(2)
 	go func() {
-		for range s.Notifications() {
+		for range s {
 			configs = append(configs, c.Get())
 			wg.Done()
 			if len(configs) == 2 {

sdk.go

@@ -158,6 +158,6 @@ type Subscriber interface {
 	Notifications() chan notifications.WorkspaceConfigNotification
 }
 
-func (cp *ControlPlane) Subscribe() *cache.Subscriber {
+func (cp *ControlPlane) Subscribe() chan notifications.WorkspaceConfigNotification {
 	return cp.configsCache.Subscribe()
 }