From 798218a9a3ab6495313533a298e1e29e55dd1bff Mon Sep 17 00:00:00 2001
From: David Czihak <git@dcz.at>
Date: Tue, 12 May 2026 09:51:15 +0200
Subject: Fix: Throttle step discovery

---
 Zig.novaextension/Scripts/main.js | 50 ++++++++++++++++++++++++++++++++-------
 1 file changed, 41 insertions(+), 9 deletions(-)

(limited to 'Zig.novaextension/Scripts')

diff --git a/Zig.novaextension/Scripts/main.js b/Zig.novaextension/Scripts/main.js
index 178f376..04cfb22 100644
--- a/Zig.novaextension/Scripts/main.js
+++ b/Zig.novaextension/Scripts/main.js
@@ -8,6 +8,7 @@ const LANGUAGE_CLIENT_ID = `${EXTENSION_ID}.zls`;
 const ISSUE_MATCHER = "zig.compiler";
 const USER_OPTION_REGEX = /^[A-Za-z_][A-Za-z0-9_-]*(=.+)?$/;
 const STEP_CACHE_TTL_MS = 5 * 60 * 1000;
+const STEP_DISCOVERY_RETRY_DELAY_MS = 30 * 1000;
 
 const CONFIG_KEYS = {
   zigPath: `${EXTENSION_ID}.toolchain.zig-path`,
@@ -553,6 +554,7 @@ const stepCache = {
   entries: new Map(),
   pending: new Map(),
   lastWarnedAt: new Map(),
+  retryTimers: new Map(),
 
   getOrFetch(cwd) {
     if (!cwd) return null;
@@ -578,22 +580,48 @@ const stepCache = {
     if (fresh) return cached.steps;
 
     if (!this.pending.has(cwd)) {
-      const promise = this.fetch(cwd, buildZigMtimeMs, buildZonMtimeMs).finally(
-        () => {
-          this.pending.delete(cwd);
-          if (typeof nova.workspace.reloadTasks === "function") {
-            try {
-              nova.workspace.reloadTasks(TASK_ASSISTANT_ID);
-            } catch (_) {}
+      clearTimeout(this.retryTimers.get(cwd));
+      this.retryTimers.delete(cwd);
+
+      const promise = this.fetch(cwd, buildZigMtimeMs, buildZonMtimeMs)
+        .then((steps) => {
+          if (steps !== null) {
+            if (typeof nova.workspace.reloadTasks === "function") {
+              try {
+                nova.workspace.reloadTasks(TASK_ASSISTANT_ID);
+              } catch (_) {}
+            }
+          } else {
+            this._scheduleRetry(cwd);
           }
-        },
-      );
+        })
+        .catch(() => {
+          this._scheduleRetry(cwd);
+        })
+        .finally(() => {
+          this.pending.delete(cwd);
+        });
       this.pending.set(cwd, promise);
     }
 
     return cached ? cached.steps : null;
   },
 
+  _scheduleRetry(cwd) {
+    clearTimeout(this.retryTimers.get(cwd));
+    this.retryTimers.set(
+      cwd,
+      setTimeout(() => {
+        this.retryTimers.delete(cwd);
+        if (typeof nova.workspace.reloadTasks === "function") {
+          try {
+            nova.workspace.reloadTasks(TASK_ASSISTANT_ID);
+          } catch (_) {}
+        }
+      }, STEP_DISCOVERY_RETRY_DELAY_MS),
+    );
+  },
+
   async fetch(cwd, buildZigMtimeMs, buildZonMtimeMs) {
     console.log(`[${TASK_ASSISTANT_ID}] stepCache.fetch: cwd=${cwd}`);
     const zigPath = await resolveZigExecutable();
@@ -636,9 +664,13 @@ const stepCache = {
     if (cwd) {
       this.entries.delete(cwd);
       this.lastWarnedAt.delete(cwd);
+      clearTimeout(this.retryTimers.get(cwd));
+      this.retryTimers.delete(cwd);
     } else {
       this.entries.clear();
       this.lastWarnedAt.clear();
+      for (const t of this.retryTimers.values()) clearTimeout(t);
+      this.retryTimers.clear();
     }
   },
 };
-- 
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