A music player that connects to your cloud/distributed storage. diffuse.sh
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/** * @import { InputActions as Actions, ConsultGrouping } from "@specs/components/input/types.d.ts"; * @import { Track } from "~/definitions/types.d.ts" */
////////////////////////////////////////////// ACTIONS////////////////////////////////////////////
/** * @type {Actions['artwork']} */export async function artwork(uri) { try { const parsed = parseURI(uri); if (!parsed) return null;
const directory = dirname(parsed.path); if (!directory) return null;
const handles = await loadHandles(); const handle = handles[parsed.tid]; if (!handle) return null;
const dirHandle = await getDirectoryHandle(handle, directory); if (!dirHandle) return null;
// Collect sibling image files, then prefer a cover-named one. /** @type {{ name: string; file: File }[]} */ const images = []; for await (const [name, entry] of dirHandle.entries()) { if (entry.kind !== "file" || !isImageFile(name)) continue; const file = await /** @type {FileSystemFileHandle} */ (entry).getFile(); images.push({ name, file }); }
const image = pickCoverArt(images, (i) => i.name); if (!image) return null;
return new Uint8Array(await image.file.arrayBuffer()); } catch { return null; }}
/** * @type {Actions['consult']} */export async function consult(fileUriOrScheme) { if (!isSupported()) { return { supported: false, reason: "No browser support" }; }
if (!fileUriOrScheme.includes(":")) { return { supported: true, consult: "undetermined" }; }
const parsed = parseURI(fileUriOrScheme); if (!parsed) return { supported: false, reason: "Unknown handle" };
const handles = await loadHandles(); const handle = handles[parsed.tid];
if (!handle) return { supported: false, reason: "Unknown handle" };
const permission = await /** @type {any} */ (handle).queryPermission({ mode: "read", });
return { supported: true, consult: permission === "granted" ? "yes" : "no" };}
/** * @type {Actions['detach']} */export async function detach({ fileUriOrScheme, tracks }) { if (!fileUriOrScheme.includes("://")) { if (fileUriOrScheme === SCHEME) return []; return tracks; }
const parsed = parseURI(fileUriOrScheme); if (!parsed) return tracks;
const { tid } = parsed; const groups = groupTracksByTid(tracks); delete groups[tid]; const filteredTracks = Object.values(groups).map((g) => g.tracks).flat(1);
try { const handles = await loadHandles(); delete handles[tid]; await saveHandles(handles); } catch { // IDB cleanup failure must not prevent track removal }
return filteredTracks;}
/** * @type {Actions['groupConsult']} */export async function groupConsult(uris) { const groups = groupUrisByTid(uris); const handles = await loadHandles();
const promises = Object.entries(groups).flatMap(async ([tid, { uris }]) => { const handle = handles[tid]; if (!handle) return [];
const available = (await /** @type {any} */ (handle).queryPermission({ mode: "read" })) === "granted" ? /** @type {const} */ ("yes") : /** @type {const} */ ("no");
/** @type {ConsultGrouping} */ const grouping = available === "yes" ? { available, scheme: SCHEME, uris } : { available, reason: "Permission not granted", scheme: SCHEME, uris };
return [{ key: groupKey(SCHEME, tid), grouping }]; });
const results = (await Promise.all(promises)).flat(1); return Object.fromEntries(results.map((e) => [e.key, e.grouping]));}
/** * @type {Actions['list']} */export async function list(cachedTracks = []) { const handles = await loadHandles(); const now = new Date().toISOString();
/** @type {Record<string, Track>} */ const cacheByUri = {};
cachedTracks.forEach((t) => { cacheByUri[t.uri] = t; });
const trackGroups = groupTracksByTid(cachedTracks);
const allTids = new Set(Object.keys(trackGroups));
const promises = [...allTids].map(async (tid) => { const handle = handles[tid]; if (!handle) return trackGroups[tid]?.tracks ?? /** @type {Track[]} */ ([]);
const perm = await /** @type {any} */ (handle).queryPermission({ mode: "read", });
if (perm !== "granted") { const cached = trackGroups[tid]?.tracks[0];
/** @type {Track} */ const placeholder = { $type: "sh.diffuse.output.track", id: cached?.id ?? TID.now(), createdAt: cached?.createdAt ?? now, updatedAt: now, kind: "placeholder", uri: buildURI(tid), };
return [placeholder]; }
if (handle.kind === "file") { const uri = buildURI(tid); const cached = cacheByUri[uri];
/** @type {Track} */ const track = { $type: "sh.diffuse.output.track", id: cached?.id ?? TID.now(), createdAt: cached?.createdAt ?? now, updatedAt: cached?.updatedAt ?? now, stats: cached?.stats, tags: cached?.tags, uri, };
return [track]; }
const paths = await enumerateAudioFiles( /** @type {FileSystemDirectoryHandle} */ (handle), );
if (!paths.length) { /** @type {Track} */ const placeholder = { $type: "sh.diffuse.output.track", id: TID.now(), createdAt: now, updatedAt: now, kind: "placeholder", uri: buildURI(tid), };
return [placeholder]; }
return paths.map((path) => { const uri = buildURI(tid, path); const cached = cacheByUri[uri];
/** @type {Track} */ const track = { $type: "sh.diffuse.output.track", id: cached?.id ?? TID.now(), createdAt: cached?.createdAt ?? now, updatedAt: cached?.updatedAt ?? now, stats: cached?.stats, tags: cached?.tags, uri, };
return track; }); });
const tracks = (await Promise.all(promises)).flat(1); return tracks;}
/** * @type {Actions['resolve']} */export async function resolve({ uri }) { const parsed = parseURI(uri); if (!parsed) return undefined;
const handles = await loadHandles(); const handle = handles[parsed.tid]; const path = parsed.path.replace(/^\//, "");
if (!handle) return undefined; if (handle.kind === "directory" && path === "") return undefined;
const fileHandle = await getHandleFile(handle, path); const file = await fileHandle.getFile();
const url = URL.createObjectURL(file); return { url, expiresAt: Infinity };}
////////////////////////////////////////////// ⚡️////////////////////////////////////////////
ostiary((context) => { rpc(context, { artwork, consult, detach, groupConsult, list, resolve, });});