Remove unused eventpool package, improve logging levels, standardize websocket handling, and add HandleClose functionality.

app/handle-close.go

@@ -1 +1,37 @@
 package app
+
+import (
+	"errors"
+
+	"encoders.orly/envelopes/closeenvelope"
+	"lol.mleku.dev/chk"
+	"lol.mleku.dev/log"
+)
+
+// HandleClose processes a CLOSE envelope by unmarshalling the request,
+// validates the presence of an <id> field, and signals cancellation for
+// the associated listener through the server's publisher mechanism.
+func (l *Listener) HandleClose(
+	req []byte,
+) (err error) {
+	var rem []byte
+	env := closeenvelope.New()
+	if rem, err = env.Unmarshal(req); chk.E(err) {
+		return
+	}
+	if len(rem) > 0 {
+		log.I.F("extra '%s'", rem)
+	}
+	if len(env.ID) == 0 {
+		return errors.New("CLOSE has no <id>")
+	}
+	l.publishers.Receive(
+		&W{
+			Cancel: true,
+			remote: l.remote,
+			Conn:   l.conn,
+			Id:     string(env.ID),
+		},
+	)
+	return
+}