peter
e257e2aca0
Prettier 3 (pinned), printWidth 100, double quotes — chosen to match the existing hand-formatting and minimise reflow. This commit is ONLY the mechanical format pass (`prettier --write`) plus the config/ignore/scripts, isolated so it never pollutes a feature diff. Verified behaviour-neutral: typecheck, eslint (0 errors), and vitest all green before and after. See .git-blame-ignore-revs — `git blame` skips this sha.
43 lines
1.7 KiB
TypeScript
43 lines
1.7 KiB
TypeScript
import { sortRows, type SortState } from "./columnSort";
|
|
|
|
// The playlist detail's VIEW derivation: what the reader sees, as opposed to the playlist's stored
|
|
// order. Kept structural (no `Column`, no component imports) like `columnSort.ts`, so it stays pure
|
|
// and testable — the "save this order" button writes whatever `applyView` returned, which is reason
|
|
// enough for this to be covered rather than eyeballed.
|
|
|
|
interface Grouped {
|
|
channel_title?: string | null;
|
|
}
|
|
interface Sortable<T> {
|
|
key: string;
|
|
sortValue?: (row: T) => string | number;
|
|
}
|
|
|
|
/** Filters are applied by the caller; this is sort, then optional channel grouping. Groups are
|
|
* ordered by channel name in the sort's direction, and the sort applies WITHIN each group (with no
|
|
* sort, each group keeps its stored order). */
|
|
export function applyView<T extends Grouped>(
|
|
rows: T[],
|
|
columns: Sortable<T>[],
|
|
sort: SortState,
|
|
group: boolean,
|
|
): T[] {
|
|
const sorted = sortRows(rows, columns, sort);
|
|
if (!group) return sorted;
|
|
const groups = new Map<string, T[]>();
|
|
for (const v of sorted) {
|
|
const k = v.channel_title ?? "";
|
|
const g = groups.get(k);
|
|
if (g) g.push(v);
|
|
else groups.set(k, [v]);
|
|
}
|
|
const sign = sort?.dir === "desc" ? -1 : 1;
|
|
const keys = [...groups.keys()].sort((a, b) => sign * a.localeCompare(b));
|
|
return keys.flatMap((k) => groups.get(k)!);
|
|
}
|
|
|
|
/** Same items in the same positions. Identity is the id, so a refetch that changed only a title
|
|
* doesn't read as a reorder — and a shorter list (a filtered view) is never "the same order". */
|
|
export const sameOrder = (a: { id: string }[], b: { id: string }[]) =>
|
|
a.length === b.length && a.every((v, i) => v.id === b[i]!.id);
|