66 lines
2.2 KiB
TypeScript
66 lines
2.2 KiB
TypeScript
/**
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* Turns the rows the playlist and follow services read from `playlists` into
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* the {@link Playlist} the API sends.
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*
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* @module
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*/
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import type { SQLOutputValue } from "node:sqlite";
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import type { Playlist } from "../../shared/playlist.ts";
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/**
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* Returned by the playlist and follow services' `SELECT`s on `playlists`. A
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* query may add `dump_count` and `owner_username` columns, which
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* {@link playlistRowToApi} carries over when present.
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*/
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export interface PlaylistRow {
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id: string;
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user_id: string;
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title: string;
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slug: string | null;
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description: string | null;
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is_public: number;
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created_at: string;
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updated_at: string | null;
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image_mime: string | null;
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[key: string]: SQLOutputValue;
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}
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/** Checks whether a row `node:sqlite` returned is a {@link PlaylistRow}. */
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export function isPlaylistRow(
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obj: unknown,
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): obj is PlaylistRow {
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return !!obj && typeof obj === "object" &&
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"id" in obj && typeof obj.id === "string" &&
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"user_id" in obj && typeof obj.user_id === "string" &&
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"title" in obj && typeof obj.title === "string" &&
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"slug" in obj && (typeof obj.slug === "string" || obj.slug === null) &&
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"description" in obj &&
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(typeof obj.description === "string" || obj.description === null) &&
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"is_public" in obj && typeof obj.is_public === "number" &&
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"created_at" in obj && typeof obj.created_at === "string" &&
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"updated_at" in obj &&
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(typeof obj.updated_at === "string" || obj.updated_at === null) &&
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"image_mime" in obj &&
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(typeof obj.image_mime === "string" || obj.image_mime === null);
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}
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/** Converts `row` to the {@link Playlist} the playlist routes send. */
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export function playlistRowToApi(row: PlaylistRow): Playlist {
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return {
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id: row.id,
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userId: row.user_id,
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title: row.title,
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slug: row.slug ?? undefined,
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description: row.description ?? undefined,
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isPublic: Boolean(row.is_public),
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createdAt: new Date(row.created_at),
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updatedAt: row.updated_at ? new Date(row.updated_at) : undefined,
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imageMime: row.image_mime ?? undefined,
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dumpCount: typeof row.dump_count === "number" ? row.dump_count : undefined,
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ownerUsername: typeof row.owner_username === "string"
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? row.owner_username
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: undefined,
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};
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}
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