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Code Issues 1 Packages Projects Releases Wiki Activity

Genre with id and name, rather than just name

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This commit is contained in:
simojenki
2021-03-19 20:31:39 +11:00
parent 852cc34a43
commit 0e3fd9d781
8 changed files with 168 additions and 112 deletions
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15
tests/in_memory_music_service.ts
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@@ -1,8 +1,8 @@
import { option as O } from "fp-ts";
import * as A from "fp-ts/Array";
import { eqString } from "fp-ts/lib/Eq";
import { fromEquals } from "fp-ts/lib/Eq";
import { pipe } from "fp-ts/lib/function";
import { ordString } from "fp-ts/lib/Ord";
import { ordString, fromCompare } from "fp-ts/lib/Ord";
import {
MusicService,
@@ -19,13 +19,14 @@ import {
albumToAlbumSummary,
Album,
Track,
Genre,
} from "../src/music_service";
type P<T> = (t: T) => boolean;
const all: P<any> = (_: any) => true;
const albumWithGenre = (genre: string): P<[Artist, Album]> => ([_, album]) =>
album.genre === genre;
const albumWithGenre = (genreId: string): P<[Artist, Album]> => ([_, album]) =>
album.genre?.id === genreId;
export class InMemoryMusicService implements MusicService {
users: Record<string, string> = {};
@@ -103,8 +104,10 @@ export class InMemoryMusicService implements MusicService {
A.flatten,
A.map((it) => O.fromNullable(it.genre)),
A.compact,
A.uniq(eqString),
A.sort(ordString)
A.uniq(fromEquals((x, y) => x.id === y.id)),
A.sort(
fromCompare<Genre>((x, y) => ordString.compare(x.id, y.id))
)
)
),
tracks: (albumId: string) =>