Brendon/gameyfin
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Update rating algorithm

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This commit is contained in:
grimsi
2025-09-04 18:19:22 +02:00
parent 183e1fc192
commit 24eacc0196
2 changed files with 33 additions and 15 deletions
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app/src/main/frontend/util/utils.ts
+27 -7
View File
@@ -241,6 +241,30 @@ function convertRange(value: number, originalRange: number[], targetRange: numbe
return (value - originalRange[0]) * (targetRange[1] - targetRange[0]) / (originalRange[1] - originalRange[0]) + targetRange[0];
}
/**
* Calculate a compound rating for a GameDto based on its criticRating and userRating.
* If both ratings are present, a weighted average is calculated (40% critic, 60% user).
* If only one rating is present, that rating is returned.
* If neither rating is present, 0 is returned.
* @param game The GameDto object containing the ratings.
* @returns The compound rating as a number between 0 and 100.
*/
export function compoundRating(game: GameDto): number {
const weights = {
critic: 0.4,
user: 0.6
};
const criticRating = game.criticRating ?? 0;
const userRating = game.userRating ?? 0;
if (criticRating === 0 && userRating === 0) return 0;
if (criticRating === 0) return userRating;
if (userRating === 0) return criticRating;
return Math.round((criticRating * weights.critic + userRating * weights.user) * 10) / 10;
}
/**
* Convert a GameDto's ratings to a star rating out of 5.
* If both criticRating and userRating are present, their average is taken.
@@ -249,15 +273,11 @@ function convertRange(value: number, originalRange: number[], targetRange: numbe
* @returns A string representing the star rating out of 5, or "N/A" if no ratings are available.
*/
export function gameRatingInStars(game: GameDto) {
if (!game.criticRating && !game.userRating) return "N/A";
const originalRange = [0, 100];
const starRange = [1, 5];
const ratings = [];
if (game.criticRating) ratings.push(game.criticRating);
if (game.userRating) ratings.push(game.userRating);
const avgRating = ratings.reduce((a, b) => a + b, 0) / ratings.length;
const rating = compoundRating(game);
if (rating === 0) return "N/A";
return convertRange(avgRating, originalRange, starRange).toFixed(1);
return convertRange(rating, originalRange, starRange).toFixed(1);
}
app/src/main/frontend/views/SearchView.tsx
+6 -8
View File
@@ -9,7 +9,7 @@ import {Fzf} from "fzf";
import GameDto from "Frontend/generated/org/gameyfin/app/games/dto/GameDto";
import LibraryDto from "Frontend/generated/org/gameyfin/app/libraries/dto/LibraryDto";
import CoverGrid from "Frontend/components/general/covers/CoverGrid";
import {gameRatingInStars, toTitleCase} from "Frontend/util/utils";
import {compoundRating, toTitleCase} from "Frontend/util/utils";
export default function SearchView() {
const games = useSnapshot(gameState).sortedAlphabetically as GameDto[];
@@ -138,7 +138,7 @@ export default function SearchView() {
const [sortKey, sortDirection] = sortBy.split("_");
return [...games].sort((a, b) => {
return games.slice().sort((a, b) => {
let cmp: number;
switch (sortKey) {
@@ -149,7 +149,7 @@ export default function SearchView() {
cmp = (a.release || "").localeCompare(b.release || "");
break;
case "rating":
cmp = (a.criticRating ?? 0) - (b.criticRating ?? 0);
cmp = compoundRating(a) - compoundRating(b);
break;
case "added":
cmp = new Date(a.createdAt).getTime() - new Date(b.createdAt).getTime();
@@ -235,13 +235,11 @@ export default function SearchView() {
// Apply minimum rating filter
if (minRating > 1) {
filtered = filtered.filter(game => {
const ratingStr = gameRatingInStars(game);
if (ratingStr === "N/A") return false;
const ratingNum = parseFloat(ratingStr);
const rating = compoundRating(game);
if (minRating === 5) {
return ratingNum > 4.5;
return rating > 4.5;
}
return ratingNum >= minRating;
return rating >= minRating;
});
}
return filtered;