fix(anime): align due cover rendering with due classification

1 files changed, 93 insertions, 1 deletions

diff --git a/src/lib/Media/Anime/Airing/classify.test.ts b/src/lib/Media/Anime/Airing/classify.test.ts
index fb7f2c8f..b05be83b 100644
--- a/src/lib/Media/Anime/Airing/classify.test.ts
+++ b/src/lib/Media/Anime/Airing/classify.test.ts
@@ -6,7 +6,10 @@ import {
 	hasDueEpisodes,
 	getAnimeEpisodeState,
 } from "$lib/Media/Anime/Airing/classify";
-import { injectAiringTime } from "$lib/Media/Anime/Airing/Subtitled/match";
+import {
+	clearInjectAiringTimeCache,
+	injectAiringTime,
+} from "$lib/Media/Anime/Airing/Subtitled/match";
 import type { SubsPlease } from "$lib/Media/Anime/Airing/Subtitled/subsPlease";
 
 const toScheduleTime = (epochSeconds: number) => {
@@ -196,4 +199,93 @@ describe("injectAiringTime cache safety", () => {
 		expect(typeof second.nextAiringEpisode?.airingAt).toBe("number");
 		expect(typeof second.nextAiringEpisode?.nativeAiringAt).toBe("number");
 	});
+
+	it("does not reuse stale progress across cache hits for media 194028", () => {
+		clearInjectAiringTimeCache();
+
+		const media = baseMedia(194028);
+		const subtitledAiringAt = Math.floor(Date.now() / 1000) + 24 * 60 * 60;
+		const nativeAiringAt = subtitledAiringAt + 12 * 60 * 60;
+		const nativeAiringDate = new Date(nativeAiringAt * 1000);
+		const airingDay = nativeAiringDate.toLocaleString("en-US", {
+			weekday: "long",
+		});
+		const subsPlease = {
+			tz: "America/Los_Angeles",
+			schedule: {
+				[airingDay]: [
+					{
+						title: media.title.romaji,
+						page: "",
+						image_url: "",
+						time: toScheduleTime(subtitledAiringAt),
+					},
+				],
+			},
+		} as unknown as SubsPlease;
+
+		media.nextAiringEpisode = {
+			episode: 10,
+			airingAt: nativeAiringAt,
+		};
+
+		settings.setKey("displayNativeCountdown", false);
+
+		const caughtUp = {
+			...media,
+			mediaListEntry: {
+				...(media.mediaListEntry || {}),
+				progress: 9,
+			},
+		} as Media;
+		const behind = {
+			...media,
+			mediaListEntry: {
+				...(media.mediaListEntry || {}),
+				progress: 8,
+			},
+		} as Media;
+		const cachedCaughtUp = injectAiringTime(caughtUp, subsPlease);
+		const updatedBehind = injectAiringTime(behind, subsPlease);
+
+		expect(hasDueEpisodes(cachedCaughtUp)).toBe(false);
+		expect(hasDueEpisodes(updatedBehind)).toBe(true);
+	});
+
+	it("does not let caller mutate cached mediaListEntry progress", () => {
+		clearInjectAiringTimeCache();
+
+		const media = baseMedia(194028);
+		const subtitledAiringAt = Math.floor(Date.now() / 1000) + 24 * 60 * 60;
+		const nativeAiringAt = subtitledAiringAt + 12 * 60 * 60;
+		const nativeAiringDate = new Date(nativeAiringAt * 1000);
+		const airingDay = nativeAiringDate.toLocaleString("en-US", {
+			weekday: "long",
+		});
+		const subsPlease = {
+			tz: "America/Los_Angeles",
+			schedule: {
+				[airingDay]: [
+					{
+						title: media.title.romaji,
+						page: "",
+						image_url: "",
+						time: toScheduleTime(subtitledAiringAt),
+					},
+				],
+			},
+		} as unknown as SubsPlease;
+
+		settings.setKey("displayNativeCountdown", false);
+
+		const originalProgress = media.mediaListEntry?.progress || 0;
+		const first = injectAiringTime(media, subsPlease);
+
+		if (first.mediaListEntry) first.mediaListEntry.progress = 999;
+
+		const second = injectAiringTime(media, subsPlease);
+
+		expect(media.mediaListEntry?.progress).toBe(originalProgress);
+		expect(second.mediaListEntry?.progress).toBe(originalProgress);
+	});
 });