From 7841f97cde6182359bb3f2b0f6117c6379ef18dc Mon Sep 17 00:00:00 2001
From: "(quasar) nebula" <qznebula@protonmail.com>
Date: Sun, 5 Nov 2023 18:29:22 -0400
Subject: data, find: use clean-logic, cached find.trackOriginalReleasesOnly

---
 .../things/track/withAlwaysReferenceByDirectory.js | 60 +++++++---------------
 src/find.js                                        | 18 +++++++
 2 files changed, 37 insertions(+), 41 deletions(-)

diff --git a/src/data/composite/things/track/withAlwaysReferenceByDirectory.js b/src/data/composite/things/track/withAlwaysReferenceByDirectory.js
index 52d7212..fac8e21 100644
--- a/src/data/composite/things/track/withAlwaysReferenceByDirectory.js
+++ b/src/data/composite/things/track/withAlwaysReferenceByDirectory.js
@@ -2,22 +2,15 @@
 // just to the track's name, which means you don't have to always reference
 // some *other* (much more commonly referenced) track by directory instead
 // of more naturally by name.
-//
-// See the implementation for an important caveat about matching the original
-// track against other tracks, which uses a custom implementation pulling (and
-// duplicating) details from #find instead of using withOriginalRelease and the
-// usual withResolvedReference / find.track() utilities.
-//
 
 import {input, templateCompositeFrom} from '#composite';
+import find from '#find';
 import {isBoolean} from '#validators';
 
 import {exitWithoutDependency, exposeUpdateValueOrContinue}
   from '#composite/control-flow';
 import {withPropertyFromObject} from '#composite/data';
-
-// TODO: Kludge. (The usage of this, not so much the import.)
-import CacheableObject from '../../../things/cacheable-object.js';
+import {withResolvedReference} from '#composite/wiki-data';
 
 export default templateCompositeFrom({
   annotation: `withAlwaysReferenceByDirectory`,
@@ -44,38 +37,23 @@ export default templateCompositeFrom({
       value: input.value(false),
     }),
 
-    // "Slow" / uncached, manual search from trackData (with this track
-    // excluded). Otherwise there end up being pretty bad recursion issues
-    // (track1.alwaysReferencedByDirectory depends on searching through data
-    // including track2, which depends on evaluating track2.alwaysReferenced-
-    // ByDirectory, which depends on searcing through data including track1...)
-    // That said, this is 100% a kludge, since it involves duplicating find
-    // logic on a completely unrelated context.
-    {
-      dependencies: [input.myself(), 'trackData', 'originalReleaseTrack'],
-      compute(continuation, {
-        [input.myself()]: thisTrack,
-        ['trackData']: trackData,
-        ['originalReleaseTrack']: ref,
-      }) {
-        let originalRelease;
-
-        if (ref.startsWith('track:')) {
-          const refDirectory = ref.slice('track:'.length);
-          originalRelease =
-            trackData.find(track => track.directory === refDirectory);
-        } else {
-          const refName = ref.toLowerCase();
-          originalRelease =
-            trackData.find(track =>
-              track.name.toLowerCase() === refName &&
-              track !== thisTrack &&
-              !CacheableObject.getUpdateValue(track, 'originalReleaseTrack'));
-        }
-
-        return continuation({['#originalRelease']: originalRelease});
-      },
-    },
+    // It's necessary to use the custom trackOriginalReleasesOnly find function
+    // here, so as to avoid recursion issues - the find.track() function depends
+    // on accessing each track's alwaysReferenceByDirectory, which means it'll
+    // hit *this track* - and thus this step - and end up recursing infinitely.
+    // By definition, find.trackOriginalReleasesOnly excludes tracks which have
+    // an originalReleaseTrack update value set, which means even though it does
+    // still access each of tracks' `alwaysReferenceByDirectory` property, it
+    // won't access that of *this* track - it will never proceed past the
+    // `exitWithoutDependency` step directly above, so there's no opportunity
+    // for recursion.
+    withResolvedReference({
+      ref: 'originalReleaseTrack',
+      data: 'trackData',
+      find: input.value(find.trackOriginalReleasesOnly),
+    }).outputs({
+      '#resolvedReference': '#originalRelease',
+    }),
 
     exitWithoutDependency({
       dependency: '#originalRelease',
diff --git a/src/find.js b/src/find.js
index d8c08ec..dfcaa9a 100644
--- a/src/find.js
+++ b/src/find.js
@@ -2,6 +2,7 @@ import {inspect} from 'node:util';
 
 import {colors, logWarn} from '#cli';
 import {typeAppearance} from '#sugar';
+import {CacheableObject} from '#things';
 
 function warnOrThrow(mode, message) {
   if (mode === 'error') {
@@ -185,6 +186,22 @@ const find = {
         ? []
         : [track.name]),
   }),
+
+  trackOriginalReleasesOnly: findHelper({
+    referenceTypes: ['track'],
+
+    include: track =>
+      !CacheableObject.getUpdateValue(track, 'originalReleaseTrack'),
+
+    // It's still necessary to check alwaysReferenceByDirectory here, since it
+    // may be set manually (with the `Always Reference By Directory` field), and
+    // these shouldn't be matched by name (as per usual). See the definition for
+    // that property for more information.
+    getMatchableNames: track =>
+      (track.alwaysReferenceByDirectory
+        ? []
+        : [track.name]),
+  }),
 };
 
 export default find;
@@ -207,6 +224,7 @@ export function bindFind(wikiData, opts1) {
       newsEntry: 'newsData',
       staticPage: 'staticPageData',
       track: 'trackData',
+      trackOriginalReleasesOnly: 'trackData',
     }).map(([key, value]) => {
       const findFn = find[key];
       const thingData = wikiData[value];
-- 
cgit 1.3.0-6-gf8a5