yiekheng
4f5d74e1c8
git-subtree-dir: manga-site git-subtree-split: f2ef775f7095dc2b107b576cd4053593e89dd887
32 lines
799 B
TypeScript
32 lines
799 B
TypeScript
/**
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* A manga's `genre` field may hold multiple comma-separated genres
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* (e.g. "冒险, 恋爱, 魔幻"). This normalizes the raw string into a
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* deduped, trimmed list.
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*/
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export function parseGenres(raw: string): string[] {
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if (!raw) return [];
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const seen = new Set<string>();
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const out: string[] = [];
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for (const part of raw.split(",")) {
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const g = part.trim();
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if (!g) continue;
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if (seen.has(g)) continue;
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seen.add(g);
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out.push(g);
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}
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return out;
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}
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/**
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* Flatten all genres across a collection of manga into a sorted unique list.
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*/
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export function collectGenres(
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mangas: { genre: string }[]
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): string[] {
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const seen = new Set<string>();
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for (const m of mangas) {
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for (const g of parseGenres(m.genre)) seen.add(g);
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}
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return [...seen].sort();
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}
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