From e99fd0710b851e00b9c55d2cf8e39c5b0ecdbb9b Mon Sep 17 00:00:00 2001
From: Adrian Zuercher <adrianzuercher@MacBook-Air-von-Adrian.local>
Date: Sun, 24 Aug 2025 07:52:26 +0200
Subject: [PATCH] new subsrcribe topic with wildcard *

---
 pubSub.go      | 11 ++++++++---
 utils/utils.go | 14 ++++++++++++++
 2 files changed, 22 insertions(+), 3 deletions(-)
 create mode 100644 utils/utils.go

diff --git a/pubSub.go b/pubSub.go
index 1211ddd..d9b8532 100644
--- a/pubSub.go
+++ b/pubSub.go
@@ -5,6 +5,7 @@ import (
 	"sync"
 
 	"gitea.tecamino.com/paadi/pubSub/models"
+	"gitea.tecamino.com/paadi/pubSub/utils"
 )
 
 // Pubsub implements a simple topic-based publish/subscribe system
@@ -43,9 +44,13 @@ func (ps *Pubsub) worker() {
 	defer ps.wg.Done()
 	for job := range ps.jobQueue {
 		ps.mu.RLock()
-		subs := make([]func(any), 0, len(ps.subs[job.Topic]))
-		for _, cb := range ps.subs[job.Topic] {
-			subs = append(subs, cb)
+		var subs []func(any)
+		for pattern, callbacks := range ps.subs {
+			if utils.Matches(pattern, job.Topic) {
+				for _, cb := range callbacks {
+					subs = append(subs, cb)
+				}
+			}
 		}
 		ps.mu.RUnlock()
 
diff --git a/utils/utils.go b/utils/utils.go
new file mode 100644
index 0000000..25699e5
--- /dev/null
+++ b/utils/utils.go
@@ -0,0 +1,14 @@
+package utils
+
+import "strings"
+
+func Matches(pattern, topic string) bool {
+	if pattern == "*" {
+		return true
+	}
+	if strings.HasSuffix(pattern, "/*") {
+		prefix := strings.TrimSuffix(pattern, "/*")
+		return strings.HasPrefix(topic, prefix+"/")
+	}
+	return pattern == topic
+}