From d8fe214da54d2495b433cd3c1e6a17e52106eda3 Mon Sep 17 00:00:00 2001
From: Matt Johnson <mj@k7zvx.com>
Date: Fri, 17 Jul 2026 06:59:29 +0000
Subject: [PATCH] fix(dashboard): hard-disable the Central feed_source option
 (retired backend)
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Central's NATS broker is gone and its database was dropped 2026-07-15, but
the per-adapter Native/Central toggle on the Environment page still let an
operator pick "central" for 11 of 12 adapters and have it save successfully
(config.py's validator still accepts central|native; env/store.py's gate
just silently skips registration when feed_source != "native"). The result:
flip the switch, save cleanly, feed dies with no error anywhere.

This is a minimal stopgap, not the real fix. A separate refactor will strip
feed_source/hasCentral/nativeOnly and the whole toggle out once Central's
removal is complete; that's out of scope here and backend behavior (config
validator, store gate) is intentionally untouched so existing YAML with
feed_source: central doesn't break.

For now: hard-disable the Central button in FeedSourceToggle regardless of
hasCentral/nativeOnly (kept referenced, not deleted, for the pending
refactor), and make the accompanying copy tell the truth — "Central feed
source has been retired — native only" — instead of the old adapter-scoped
"not available for this adapter" text that no longer describes what's
happening.

Verified: GaugeSites.tsx only reads usgs.feed_source to gate its lookup
button, never writes it — not a second instance of this trap. tsc --noEmit
and the pytest suite show zero new failures vs. pre-edit baseline.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 work/dashboard-frontend/src/pages/Environment.tsx | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/work/dashboard-frontend/src/pages/Environment.tsx b/work/dashboard-frontend/src/pages/Environment.tsx
index a9f6a4e..eebe5fc 100644
--- a/work/dashboard-frontend/src/pages/Environment.tsx
+++ b/work/dashboard-frontend/src/pages/Environment.tsx
@@ -188,7 +188,7 @@ function FeedSourceToggle({ value, onChange, disabled, centralDisabled }: {
    <button
     type="button"
     disabled={disabled || centralDisabled}
-    title={centralDisabled ? 'Central not available for this adapter' : ''}
+    title={centralDisabled ? 'Central feed source has been retired — native only' : ''}
     onClick={() => { if (!centralDisabled) onChange('central') }}
     className={`${base} ${centralDisabled ? 'text-[#666] cursor-not-allowed' : value === 'central' ? 'bg-accent text-white' : 'text-[#777] hover:text-white'}`}
    >central</button>
@@ -208,7 +208,13 @@ function AdapterPanel({ title, subtitle, enabled, onEnabled, feedSource, onFeedS
  /** Called when user toggles include_in_llm_context */
  onLlmContext?: (v: boolean) => void
 }) {
- const centralDisabled = nativeOnly || !hasCentral
+ // The Central service was retired 2026-07-15 (NATS broker gone, DB dropped) — there is
+ // nothing left to serve a "central" feed_source for ANY adapter, so the button is
+ // hard-disabled here regardless of `hasCentral`/`nativeOnly`. Those two stay wired in
+ // (rather than deleted) because the full removal of feed_source/hasCentral/nativeOnly and
+ // this whole toggle is a separate, larger refactor still pending; this is just the stopgap
+ // that keeps operators from picking a feed source that silently stops working.
+ const centralDisabled = true || nativeOnly || !hasCentral
  return (
   <div className="border border-border p-4 space-y-3">
    <div className="flex items-center justify-between">
@@ -240,8 +246,8 @@ function AdapterPanel({ title, subtitle, enabled, onEnabled, feedSource, onFeedS
      API key required — set it in the field below
     </div>
    )}
-   {nativeOnly && (
-    <div className="text-[11px] text-[#666]">Central not available for this adapter — native only</div>
+   {centralDisabled && (
+    <div className="text-[11px] text-[#666]">Central feed source has been retired — native only</div>
    )}
    <div className={enabled ? 'space-y-3' : 'space-y-3 opacity-40 pointer-events-none select-none'}>
     {children}