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Fixed bug where off-by-one was giving incorrect result of ChoD calculation

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Felisp 2023-12-22 23:30:47 +01:00
parent 798bb4f403
commit 674f0447fc
1 changed files with 2 additions and 5 deletions
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src/rss_thread_watch/watcher.clj
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@ -38,10 +38,7 @@
:chod (* 100 (float (/ index threads-total)))}))))))
(defn build-cache
"Build cache of near-death threads so the values don't have to be recalculated on each request.
Bugs: There is probably off-by-one somewhere in the calculation because thread at position 150 doesn't
have 100% chance of death which is weird, however, 99.333% is considered close enough for now"
"Build cache of near-death threads so the values don't have to be recalculated on each request."
[pages-to-index pages-total threads-per-page threads-total]
(vec (flatten (map (fn [single-page]
;; We have to (dec page-number) bcs otherwise we would get the total number of threads
@ -64,7 +61,7 @@
;; universal calculation for total number of threads:
;; (pages-total-1) * threadsPerPage + threadsOnLastpage ;;accounts for boards which have stickied threads making them have 11pages
threads-per-page (count (:threads (first catalog)))
threads-total (+ (* threads-per-page (dec pages-total) (count (last catalog)))) ;; Todo: Yeah, maybe this calculation could be refactored into let
threads-total (+ (* threads-per-page (dec pages-total)) (count (:threads (last catalog)))) ;; Todo: Yeah, maybe this calculation could be refactored into let
to-index (filter (fn [item]
(<= starting-page (:page item))) catalog)]
(reset! chod-threads-cache (build-cache to-index pages-total threads-per-page threads-total))))