70 lines
2.2 KiB
TypeScript
70 lines
2.2 KiB
TypeScript
import { state } from "../state";
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type EpisodeTitle = { number: number; title: string };
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const episodeElements = (): HTMLElement[] => {
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const elements: HTMLElement[] = [];
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for (const container of [state.elements.episodeGrid, state.elements.episodeList]) {
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container?.querySelectorAll<HTMLElement>("[data-episode-id]").forEach((element) => {
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elements.push(element);
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});
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}
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return elements;
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};
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const hasMissingTitles = (): boolean =>
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episodeElements().some((element) => {
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const number = Number.parseInt(element.dataset.episodeId ?? "", 10);
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return number > 0 && element.dataset.episodeTitle?.trim() === `Episode ${number}`;
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});
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export const parseEpisodeTitles = (value: unknown): EpisodeTitle[] => {
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if (!Array.isArray(value)) {
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return [];
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}
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return value.flatMap((item): EpisodeTitle[] => {
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if (typeof item !== "object" || item === null) {
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return [];
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}
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const candidate = item as { number?: unknown; title?: unknown };
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if (
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typeof candidate.number !== "number" ||
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!Number.isInteger(candidate.number) ||
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candidate.number <= 0 ||
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typeof candidate.title !== "string" ||
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candidate.title.trim() === ""
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) {
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return [];
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}
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return [{ number: candidate.number, title: candidate.title.trim() }];
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});
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};
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export const applyEpisodeTitles = (titles: EpisodeTitle[]): void => {
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const byNumber = new Map(titles.map((episode) => [episode.number, episode.title]));
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episodeElements().forEach((element) => {
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const number = Number.parseInt(element.dataset.episodeId ?? "", 10);
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const title = byNumber.get(number);
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if (!title) {
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return;
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}
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element.dataset.episodeTitle = title;
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const label = element.querySelector<HTMLElement>("[data-episode-title]");
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if (label) {
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label.textContent = title;
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}
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});
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};
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export const hydrateEpisodeTitles = async (signal: AbortSignal): Promise<void> => {
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if (!hasMissingTitles() || state.episode.malID <= 0) {
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return;
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}
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const response = await fetch(`/api/watch/episodes/${state.episode.malID}/titles`, { signal });
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if (!response.ok) {
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return;
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}
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applyEpisodeTitles(parseEpisodeTitles(await response.json()));
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};
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