83 lines
1.7 KiB
TypeScript
83 lines
1.7 KiB
TypeScript
import { Ring } from "./config";
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export type ItemAttributes = {
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name: string;
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ring: Ring;
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quadrant: string;
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title: string;
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featured: boolean;
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};
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export type FlagType = "new" | "changed" | "default";
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export type Item = ItemAttributes & {
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featured: boolean;
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body: string;
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info: string;
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flag: FlagType;
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revisions: Revision[];
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};
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export type Revision = ItemAttributes & {
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body: string;
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fileName: string;
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release: string;
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};
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export type Quadrant = {
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[name: string]: Item[];
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};
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export type Radar = {
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items: Item[];
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releases: string[];
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};
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export type Group = {
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[quadrant: string]: Quadrant;
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};
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export const featuredOnly = (items: Item[]) =>
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items.filter((item) => item.featured);
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export const groupByQuadrants = (items: Item[]): Group =>
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items.reduce(
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(quadrants, item: Item) => ({
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...quadrants,
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[item.quadrant]: addItemToQuadrant(quadrants[item.quadrant], item),
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}),
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{} as { [k: string]: Quadrant }
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);
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export const groupByFirstLetter = (items: Item[]) => {
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const index = items.reduce(
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(letterIndex, item) => ({
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...letterIndex,
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[getFirstLetter(item)]: addItemToList(
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letterIndex[getFirstLetter(item)],
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item
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),
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}),
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{} as { [k: string]: Item[] }
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);
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return Object.keys(index)
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.sort()
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.map((letter) => ({
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letter,
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items: index[letter],
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}));
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};
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const addItemToQuadrant = (quadrant: Quadrant = {}, item: Item): Quadrant => ({
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...quadrant,
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[item.ring]: addItemToRing(quadrant[item.ring], item),
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});
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const addItemToList = (list: Item[] = [], item: Item) => [...list, item];
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const addItemToRing = (ring: Item[] = [], item: Item) => [...ring, item];
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export const getFirstLetter = (item: Item) =>
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item.title.substr(0, 1).toUpperCase();
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