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import {inspect} from 'node:util';
import {colors, logWarn} from '#cli';
import {typeAppearance} from '#sugar';
function warnOrThrow(mode, message) {
if (mode === 'error') {
throw new Error(message);
}
if (mode === 'warn') {
logWarn(message);
}
return null;
}
export function processAllAvailableMatches(data, {
getMatchableNames = thing =>
(Object.hasOwn(thing, 'name')
? [thing.name]
: []),
} = {}) {
const byName = Object.create(null);
const byDirectory = Object.create(null);
const multipleNameMatches = Object.create(null);
for (const thing of data) {
for (const name of getMatchableNames(thing)) {
if (typeof name !== 'string') {
logWarn`Unexpected ${typeAppearance(name)} returned in names for ${inspect(thing)}`;
continue;
}
const normalizedName = name.toLowerCase();
if (normalizedName in byName) {
byName[normalizedName] = null;
if (normalizedName in multipleNameMatches) {
multipleNameMatches[normalizedName].push(thing);
} else {
multipleNameMatches[normalizedName] = [thing];
}
} else {
byName[normalizedName] = thing;
}
}
byDirectory[thing.directory] = thing;
}
return {byName, byDirectory, multipleNameMatches};
}
function findHelper({
referenceTypes,
getMatchableNames = undefined,
}) {
const keyRefRegex =
new RegExp(String.raw`^(?:(${referenceTypes.join('|')}):(?=\S))?(.*)$`);
// Note: This cache explicitly *doesn't* support mutable data arrays. If the
// data array is modified, make sure it's actually a new array object, not
// the original, or the cache here will break and act as though the data
// hasn't changed!
const cache = new WeakMap();
// The mode argument here may be 'warn', 'error', or 'quiet'. 'error' throws
// errors for null matches (with details about the error), while 'warn' and
// 'quiet' both return null, with 'warn' logging details directly to the
// console.
return (fullRef, data, {mode = 'warn'} = {}) => {
if (!fullRef) return null;
if (typeof fullRef !== 'string') {
throw new TypeError(`Expected a string, got ${typeAppearance(fullRef)}`);
}
if (!data) {
throw new TypeError(`Expected data to be present`);
}
let subcache = cache.get(data);
if (!subcache) {
subcache =
processAllAvailableMatches(data, {
getMatchableNames,
});
cache.set(data, subcache);
}
const regexMatch = fullRef.match(keyRefRegex);
if (!regexMatch) {
warnOrThrow(mode, `Malformed link reference: "${fullRef}"`);
}
const typePart = regexMatch[1];
const refPart = regexMatch[2];
const match =
(typePart
? subcache.byDirectory[refPart]
: subcache.byName[refPart.toLowerCase()]);
if (!match && !typePart) {
if (subcache.multipleNameMatches[refPart]) {
return warnOrThrow(mode,
`Multiple matches for reference "${fullRef}". Please resolve:\n` +
subcache.multipleNameMatches[refPart]
.map(match => `- ${inspect(match)}\n`)
.join('') +
`Returning null for this reference.`);
}
}
if (!match) {
warnOrThrow(mode, `Didn't match anything for ${colors.bright(fullRef)}`);
return null;
}
return match;
};
}
const find = {
album: findHelper({
referenceTypes: ['album', 'album-commentary', 'album-gallery'],
}),
artist: findHelper({
referenceTypes: ['artist', 'artist-gallery'],
}),
artTag: findHelper({
referenceTypes: ['tag'],
getMatchableNames: artTag =>
(artTag.isContentWarning
? [`cw: ${artTag.name}`]
: [artTag.name]),
}),
flash: findHelper({
referenceTypes: ['flash'],
}),
group: findHelper({
referenceTypes: ['group', 'group-gallery'],
}),
listing: findHelper({
referenceTypes: ['listing'],
}),
newsEntry: findHelper({
referenceTypes: ['news-entry'],
}),
staticPage: findHelper({
referenceTypes: ['static'],
}),
track: findHelper({
referenceTypes: ['track'],
getMatchableNames: track =>
(track.alwaysReferenceByDirectory
? []
: [track.name]),
}),
};
export default find;
// Handy utility function for binding the find.thing() functions to a complete
// wikiData object, optionally taking default options to provide to the find
// function. Note that this caches the arrays read from wikiData right when it's
// called, so if their values change, you'll have to continue with a fresh call
// to bindFind.
export function bindFind(wikiData, opts1) {
return Object.fromEntries(
Object.entries({
album: 'albumData',
artist: 'artistData',
artTag: 'artTagData',
flash: 'flashData',
group: 'groupData',
listing: 'listingSpec',
newsEntry: 'newsData',
staticPage: 'staticPageData',
track: 'trackData',
}).map(([key, value]) => {
const findFn = find[key];
const thingData = wikiData[value];
return [
key,
opts1
? (ref, opts2) =>
opts2
? findFn(ref, thingData, {...opts1, ...opts2})
: findFn(ref, thingData, opts1)
: (ref, opts2) =>
opts2
? findFn(ref, thingData, opts2)
: findFn(ref, thingData),
];
})
);
}
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