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diff --git a/src/data/yaml.js b/src/data/yaml.js new file mode 100644 index 0000000..fdb7d9c --- /dev/null +++ b/src/data/yaml.js @@ -0,0 +1,1251 @@ +// yaml.js - specification for HSMusic YAML data file format and utilities for +// loading and processing YAML files and documents + +import * as path from 'path'; +import yaml from 'js-yaml'; + +import { readFile } from 'fs/promises'; +import { inspect as nodeInspect } from 'util'; + +import { + Album, + Artist, + ArtTag, + Flash, + FlashAct, + Group, + GroupCategory, + HomepageLayout, + HomepageLayoutAlbumsRow, + HomepageLayoutRow, + NewsEntry, + StaticPage, + Thing, + Track, + TrackGroup, + WikiInfo, +} from './things.js'; + +import { + color, + ENABLE_COLOR, +} from '../util/cli.js'; + +import { + decorateErrorWithIndex, + mapAggregate, + openAggregate, + withAggregate, +} from '../util/sugar.js'; + +import { + sortByDate, + sortByName, +} from '../util/wiki-data.js'; + +import find, { bindFind } from '../util/find.js'; +import { findFiles } from '../util/io.js'; + +// --> General supporting stuff + +function inspect(value) { + return nodeInspect(value, {colors: ENABLE_COLOR}); +} + +// --> YAML data repository structure constants + +export const WIKI_INFO_FILE = 'wiki-info.yaml'; +export const HOMEPAGE_LAYOUT_DATA_FILE = 'homepage.yaml'; +export const ARTIST_DATA_FILE = 'artists.yaml'; +export const FLASH_DATA_FILE = 'flashes.yaml'; +export const NEWS_DATA_FILE = 'news.yaml'; +export const ART_TAG_DATA_FILE = 'tags.yaml'; +export const GROUP_DATA_FILE = 'groups.yaml'; +export const STATIC_PAGE_DATA_FILE = 'static-pages.yaml'; + +export const DATA_ALBUM_DIRECTORY = 'album'; + +// --> Document processing functions + +// General function for inputting a single document (usually loaded from YAML) +// and outputting an instance of a provided Thing subclass. +// +// makeProcessDocument is a factory function: the returned function will take a +// document and apply the configuration passed to makeProcessDocument in order +// to construct a Thing subclass. +function makeProcessDocument(thingClass, { + // Optional early step for transforming field values before providing them + // to the Thing's update() method. This is useful when the input format + // (i.e. values in the document) differ from the format the actual Thing + // expects. + // + // Each key and value are a field name (not an update() property) and a + // function which takes the value for that field and returns the value which + // will be passed on to update(). + fieldTransformations = {}, + + // Mapping of Thing.update() source properties to field names. + // + // Note this is property -> field, not field -> property. This is a + // shorthand convenience because properties are generally typical + // camel-cased JS properties, while fields may contain whitespace and be + // more easily represented as quoted strings. + propertyFieldMapping, + + // Completely ignored fields. These won't throw an unknown field error if + // they're present in a document, but they won't be used for Thing property + // generation, either. Useful for stuff that's present in data files but not + // yet implemented as part of a Thing's data model! + ignoredFields = [] +}) { + if (!propertyFieldMapping) { + throw new Error(`Expected propertyFieldMapping to be provided`); + } + + const knownFields = Object.values(propertyFieldMapping); + + // Invert the property-field mapping, since it'll come in handy for + // assigning update() source values later. + const fieldPropertyMapping = Object.fromEntries( + (Object.entries(propertyFieldMapping) + .map(([ property, field ]) => [field, property]))); + + const decorateErrorWithName = fn => { + const nameField = propertyFieldMapping['name']; + if (!nameField) return fn; + + return document => { + try { + return fn(document); + } catch (error) { + const name = document[nameField]; + error.message = (name + ? `(name: ${inspect(name)}) ${error.message}` + : `(${color.dim(`no name found`)}) ${error.message}`); + throw error; + } + }; + }; + + return decorateErrorWithName(document => { + const documentEntries = Object.entries(document) + .filter(([ field ]) => !ignoredFields.includes(field)); + + const unknownFields = documentEntries + .map(([ field ]) => field) + .filter(field => !knownFields.includes(field)); + + if (unknownFields.length) { + throw new makeProcessDocument.UnknownFieldsError(unknownFields); + } + + const fieldValues = {}; + + for (const [ field, value ] of documentEntries) { + if (Object.hasOwn(fieldTransformations, field)) { + fieldValues[field] = fieldTransformations[field](value); + } else { + fieldValues[field] = value; + } + } + + const sourceProperties = {}; + + for (const [ field, value ] of Object.entries(fieldValues)) { + const property = fieldPropertyMapping[field]; + sourceProperties[property] = value; + } + + const thing = Reflect.construct(thingClass, []); + + withAggregate({message: `Errors applying ${color.green(thingClass.name)} properties`}, ({ call }) => { + for (const [ property, value ] of Object.entries(sourceProperties)) { + call(() => (thing[property] = value)); + } + }); + + return thing; + }); +} + +makeProcessDocument.UnknownFieldsError = class UnknownFieldsError extends Error { + constructor(fields) { + super(`Unknown fields present: ${fields.join(', ')}`); + this.fields = fields; + } +}; + +export const processAlbumDocument = makeProcessDocument(Album, { + fieldTransformations: { + 'Artists': parseContributors, + 'Cover Artists': parseContributors, + 'Default Track Cover Artists': parseContributors, + 'Wallpaper Artists': parseContributors, + 'Banner Artists': parseContributors, + + 'Date': value => new Date(value), + 'Date Added': value => new Date(value), + 'Cover Art Date': value => new Date(value), + 'Default Track Cover Art Date': value => new Date(value), + + 'Banner Dimensions': parseDimensions, + }, + + propertyFieldMapping: { + name: 'Album', + + color: 'Color', + directory: 'Directory', + urls: 'URLs', + + artistContribsByRef: 'Artists', + coverArtistContribsByRef: 'Cover Artists', + trackCoverArtistContribsByRef: 'Default Track Cover Artists', + + coverArtFileExtension: 'Cover Art File Extension', + trackCoverArtFileExtension: 'Track Art File Extension', + + wallpaperArtistContribsByRef: 'Wallpaper Artists', + wallpaperStyle: 'Wallpaper Style', + wallpaperFileExtension: 'Wallpaper File Extension', + + bannerArtistContribsByRef: 'Banner Artists', + bannerStyle: 'Banner Style', + bannerFileExtension: 'Banner File Extension', + bannerDimensions: 'Banner Dimensions', + + date: 'Date', + trackArtDate: 'Default Track Cover Art Date', + coverArtDate: 'Cover Art Date', + dateAddedToWiki: 'Date Added', + + hasTrackArt: 'Has Track Art', + isMajorRelease: 'Major Release', + isListedOnHomepage: 'Listed on Homepage', + + groupsByRef: 'Groups', + artTagsByRef: 'Art Tags', + commentary: 'Commentary', + } +}); + +export const processTrackGroupDocument = makeProcessDocument(TrackGroup, { + fieldTransformations: { + 'Date Originally Released': value => new Date(value), + }, + + propertyFieldMapping: { + name: 'Group', + color: 'Color', + dateOriginallyReleased: 'Date Originally Released', + } +}); + +export const processTrackDocument = makeProcessDocument(Track, { + fieldTransformations: { + 'Duration': getDurationInSeconds, + + 'Date First Released': value => new Date(value), + 'Cover Art Date': value => new Date(value), + + 'Artists': parseContributors, + 'Contributors': parseContributors, + 'Cover Artists': parseContributors, + }, + + propertyFieldMapping: { + name: 'Track', + + directory: 'Directory', + duration: 'Duration', + urls: 'URLs', + + coverArtDate: 'Cover Art Date', + coverArtFileExtension: 'Cover Art File Extension', + dateFirstReleased: 'Date First Released', + hasCoverArt: 'Has Cover Art', + hasURLs: 'Has URLs', + + referencedTracksByRef: 'Referenced Tracks', + artistContribsByRef: 'Artists', + contributorContribsByRef: 'Contributors', + coverArtistContribsByRef: 'Cover Artists', + artTagsByRef: 'Art Tags', + originalReleaseTrackByRef: 'Originally Released As', + + commentary: 'Commentary', + lyrics: 'Lyrics' + }, + + ignoredFields: ['Sampled Tracks'] +}); + +export const processArtistDocument = makeProcessDocument(Artist, { + propertyFieldMapping: { + name: 'Artist', + + directory: 'Directory', + urls: 'URLs', + hasAvatar: 'Has Avatar', + avatarFileExtension: 'Avatar File Extension', + + aliasNames: 'Aliases', + + contextNotes: 'Context Notes' + }, + + ignoredFields: ['Dead URLs'] +}); + +export const processFlashDocument = makeProcessDocument(Flash, { + fieldTransformations: { + 'Date': value => new Date(value), + + 'Contributors': parseContributors, + }, + + propertyFieldMapping: { + name: 'Flash', + + directory: 'Directory', + page: 'Page', + date: 'Date', + coverArtFileExtension: 'Cover Art File Extension', + + featuredTracksByRef: 'Featured Tracks', + contributorContribsByRef: 'Contributors', + urls: 'URLs' + }, +}); + +export const processFlashActDocument = makeProcessDocument(FlashAct, { + propertyFieldMapping: { + name: 'Act', + color: 'Color', + anchor: 'Anchor', + jump: 'Jump', + jumpColor: 'Jump Color' + } +}); + +export const processNewsEntryDocument = makeProcessDocument(NewsEntry, { + fieldTransformations: { + 'Date': value => new Date(value) + }, + + propertyFieldMapping: { + name: 'Name', + directory: 'Directory', + date: 'Date', + content: 'Content', + } +}); + +export const processArtTagDocument = makeProcessDocument(ArtTag, { + propertyFieldMapping: { + name: 'Tag', + directory: 'Directory', + color: 'Color', + isContentWarning: 'Is CW' + } +}); + +export const processGroupDocument = makeProcessDocument(Group, { + propertyFieldMapping: { + name: 'Group', + directory: 'Directory', + description: 'Description', + urls: 'URLs', + } +}); + +export const processGroupCategoryDocument = makeProcessDocument(GroupCategory, { + propertyFieldMapping: { + name: 'Category', + color: 'Color', + } +}); + +export const processStaticPageDocument = makeProcessDocument(StaticPage, { + propertyFieldMapping: { + name: 'Name', + nameShort: 'Short Name', + directory: 'Directory', + + content: 'Content', + stylesheet: 'Style', + + showInNavigationBar: 'Show in Navigation Bar' + } +}); + +export const processWikiInfoDocument = makeProcessDocument(WikiInfo, { + propertyFieldMapping: { + name: 'Name', + nameShort: 'Short Name', + color: 'Color', + description: 'Description', + footerContent: 'Footer Content', + defaultLanguage: 'Default Language', + canonicalBase: 'Canonical Base', + enableFlashesAndGames: 'Enable Flashes & Games', + enableListings: 'Enable Listings', + enableNews: 'Enable News', + enableArtTagUI: 'Enable Art Tag UI', + enableGroupUI: 'Enable Group UI', + } +}); + +export const processHomepageLayoutDocument = makeProcessDocument(HomepageLayout, { + propertyFieldMapping: { + sidebarContent: 'Sidebar Content' + }, + + ignoredFields: ['Homepage'] +}); + +export function makeProcessHomepageLayoutRowDocument(rowClass, spec) { + return makeProcessDocument(rowClass, { + ...spec, + + propertyFieldMapping: { + name: 'Row', + color: 'Color', + type: 'Type', + ...spec.propertyFieldMapping, + } + }); +} + +export const homepageLayoutRowTypeProcessMapping = { + albums: makeProcessHomepageLayoutRowDocument(HomepageLayoutAlbumsRow, { + propertyFieldMapping: { + sourceGroupByRef: 'Group', + countAlbumsFromGroup: 'Count', + sourceAlbumsByRef: 'Albums', + actionLinks: 'Actions' + } + }) +}; + +export function processHomepageLayoutRowDocument(document) { + const type = document['Type']; + + const match = Object.entries(homepageLayoutRowTypeProcessMapping) + .find(([ key ]) => key === type); + + if (!match) { + throw new TypeError(`No processDocument function for row type ${type}!`); + } + + return match[1](document); +} + +// --> Utilities shared across document parsing functions + +export function getDurationInSeconds(string) { + if (typeof string === 'number') { + return string; + } + + if (typeof string !== 'string') { + throw new TypeError(`Expected a string or number, got ${string}`); + } + + const parts = string.split(':').map(n => parseInt(n)) + if (parts.length === 3) { + return parts[0] * 3600 + parts[1] * 60 + parts[2] + } else if (parts.length === 2) { + return parts[0] * 60 + parts[1] + } else { + return 0 + } +} + +export function parseCommentary(text) { + if (text) { + const lines = String(text).split('\n'); + if (!lines[0].replace(/<\/b>/g, '').includes(':</i>')) { + return {error: `An entry is missing commentary citation: "${lines[0].slice(0, 40)}..."`}; + } + return text; + } else { + return null; + } +} + +export function parseContributors(contributors) { + if (!contributors) { + return null; + } + + if (contributors.length === 1 && contributors[0].startsWith('<i>')) { + const arr = []; + arr.textContent = contributors[0]; + return arr; + } + + contributors = contributors.map(contrib => { + // 8asically, the format is "Who (What)", or just "Who". 8e sure to + // keep in mind that "what" doesn't necessarily have a value! + const match = contrib.match(/^(.*?)( \((.*)\))?$/); + if (!match) { + return contrib; + } + const who = match[1]; + const what = match[3] || null; + return {who, what}; + }); + + const badContributor = contributors.find(val => typeof val === 'string'); + if (badContributor) { + return {error: `An entry has an incorrectly formatted contributor, "${badContributor}".`}; + } + + if (contributors.length === 1 && contributors[0].who === 'none') { + return null; + } + + return contributors; +} + +function parseDimensions(string) { + if (!string) { + return null; + } + + const parts = string.split(/[x,* ]+/g); + if (parts.length !== 2) throw new Error(`Invalid dimensions: ${string} (expected width & height)`); + const nums = parts.map(part => Number(part.trim())); + if (nums.includes(NaN)) throw new Error(`Invalid dimensions: ${string} (couldn't parse as numbers)`); + return nums; +} + +// --> Data repository loading functions and descriptors + +// documentModes: Symbols indicating sets of behavior for loading and processing +// data files. +export const documentModes = { + // onePerFile: One document per file. Expects files array (or function) and + // processDocument function. Obviously, each specified data file should only + // contain one YAML document (an error will be thrown otherwise). Calls save + // with an array of processed documents (wiki objects). + onePerFile: Symbol('Document mode: onePerFile'), + + // headerAndEntries: One or more documents per file; the first document is + // treated as a "header" and represents data which pertains to all following + // "entry" documents. Expects files array (or function) and + // processHeaderDocument and processEntryDocument functions. Calls save with + // an array of {header, entries} objects. + // + // Please note that the final results loaded from each file may be "missing" + // data objects corresponding to entry documents if the processEntryDocument + // function throws on any entries, resulting in partial data provided to + // save() - errors will be caught and thrown in the final buildSteps + // aggregate. However, if the processHeaderDocument function fails, all + // following documents in the same file will be ignored as well (i.e. an + // entire file will be excempt from the save() function's input). + headerAndEntries: Symbol('Document mode: headerAndEntries'), + + // allInOne: One or more documents, all contained in one file. Expects file + // string (or function) and processDocument function. Calls save with an + // array of processed documents (wiki objects). + allInOne: Symbol('Document mode: allInOne'), + + // oneDocumentTotal: Just a single document, represented in one file. + // Expects file string (or function) and processDocument function. Calls + // save with the single processed wiki document (data object). + // + // Please note that if the single document fails to process, the save() + // function won't be called at all, generally resulting in an altogether + // missing property from the global wikiData object. This should be caught + // and handled externally. + oneDocumentTotal: Symbol('Document mode: oneDocumentTotal'), +}; + +// dataSteps: Top-level array of "steps" for loading YAML document files. +// +// title: +// Name of the step (displayed in build output) +// +// documentMode: +// Symbol which indicates by which "mode" documents from data files are +// loaded and processed. See documentModes export. +// +// file, files: +// String or array of strings which are paths to YAML data files, or a +// function which returns the above (may be async). All paths are appended to +// the global dataPath provided externally (e.g. HSMUSIC_DATA env variable). +// Which to provide (file or files) depends on documentMode. If this is a +// function, it will be provided with dataPath (e.g. so that a sub-path may be +// readdir'd), but don't path.join(dataPath) the returned value(s) yourself - +// this will be done automatically. +// +// processDocument, processHeaderDocument, processEntryDocument: +// Functions which take a YAML document and return an actual wiki data object; +// all actual conversion between YAML and wiki data happens here. Which to +// provide (one or a combination) depend on documentMode. +// +// save: +// Function which takes all documents processed (now as wiki data objects) and +// actually applies them to a global wiki data object, for use in page +// generation and other behavior. Returns an object to be assigned over the +// global wiki data object (so specify any new properties here). This is also +// the place to perform any final post-processing on data objects (linking +// them to each other, setting additional properties, etc). Input argument +// format depends on documentMode. +// +export const dataSteps = [ + { + title: `Process wiki info file`, + file: WIKI_INFO_FILE, + + documentMode: documentModes.oneDocumentTotal, + processDocument: processWikiInfoDocument, + + save(wikiInfo) { + if (!wikiInfo) { + return; + } + + return {wikiInfo}; + } + }, + + { + title: `Process album files`, + files: async dataPath => ( + (await findFiles(path.join(dataPath, DATA_ALBUM_DIRECTORY), { + filter: f => path.extname(f) === '.yaml', + joinParentDirectory: false + })).map(file => path.join(DATA_ALBUM_DIRECTORY, file))), + + documentMode: documentModes.headerAndEntries, + processHeaderDocument: processAlbumDocument, + processEntryDocument(document) { + return ('Group' in document + ? processTrackGroupDocument(document) + : processTrackDocument(document)); + }, + + save(results) { + const albumData = []; + const trackData = []; + + for (const { header: album, entries } of results) { + // We can't mutate an array once it's set as a property + // value, so prepare the tracks and track groups that will + // show up in a track list all the way before actually + // applying them. + const trackGroups = []; + let currentTracksByRef = null; + let currentTrackGroup = null; + + const albumRef = Thing.getReference(album); + + function closeCurrentTrackGroup() { + if (currentTracksByRef) { + let trackGroup; + + if (currentTrackGroup) { + trackGroup = currentTrackGroup; + } else { + trackGroup = new TrackGroup(); + trackGroup.name = `Default Track Group`; + trackGroup.isDefaultTrackGroup = true; + } + + trackGroup.album = album; + trackGroup.tracksByRef = currentTracksByRef; + trackGroups.push(trackGroup); + } + } + + for (const entry of entries) { + if (entry instanceof TrackGroup) { + closeCurrentTrackGroup(); + currentTracksByRef = []; + currentTrackGroup = entry; + continue; + } + + trackData.push(entry); + + entry.dataSourceAlbumByRef = albumRef; + + const trackRef = Thing.getReference(entry); + if (currentTracksByRef) { + currentTracksByRef.push(trackRef); + } else { + currentTracksByRef = [trackRef]; + } + } + + closeCurrentTrackGroup(); + + album.trackGroups = trackGroups; + albumData.push(album); + } + + return {albumData, trackData}; + } + }, + + { + title: `Process artists file`, + file: ARTIST_DATA_FILE, + + documentMode: documentModes.allInOne, + processDocument: processArtistDocument, + + save(results) { + const artistData = results; + + const artistAliasData = results.flatMap(artist => { + const origRef = Thing.getReference(artist); + return (artist.aliasNames?.map(name => { + const alias = new Artist(); + alias.name = name; + alias.isAlias = true; + alias.aliasedArtistRef = origRef; + alias.artistData = artistData; + return alias; + }) ?? []); + }); + + return {artistData, artistAliasData}; + } + }, + + // TODO: WD.wikiInfo.enableFlashesAndGames && + { + title: `Process flashes file`, + file: FLASH_DATA_FILE, + + documentMode: documentModes.allInOne, + processDocument(document) { + return ('Act' in document + ? processFlashActDocument(document) + : processFlashDocument(document)); + }, + + save(results) { + let flashAct; + let flashesByRef = []; + + if (results[0] && !(results[0] instanceof FlashAct)) { + throw new Error(`Expected an act at top of flash data file`); + } + + for (const thing of results) { + if (thing instanceof FlashAct) { + if (flashAct) { + Object.assign(flashAct, {flashesByRef}); + } + + flashAct = thing; + flashesByRef = []; + } else { + flashesByRef.push(Thing.getReference(thing)); + } + } + + if (flashAct) { + Object.assign(flashAct, {flashesByRef}); + } + + const flashData = results.filter(x => x instanceof Flash); + const flashActData = results.filter(x => x instanceof FlashAct); + + return {flashData, flashActData}; + } + }, + + { + title: `Process groups file`, + file: GROUP_DATA_FILE, + + documentMode: documentModes.allInOne, + processDocument(document) { + return ('Category' in document + ? processGroupCategoryDocument(document) + : processGroupDocument(document)); + }, + + save(results) { + let groupCategory; + let groupsByRef = []; + + if (results[0] && !(results[0] instanceof GroupCategory)) { + throw new Error(`Expected a category at top of group data file`); + } + + for (const thing of results) { + if (thing instanceof GroupCategory) { + if (groupCategory) { + Object.assign(groupCategory, {groupsByRef}); + } + + groupCategory = thing; + groupsByRef = []; + } else { + groupsByRef.push(Thing.getReference(thing)); + } + } + + if (groupCategory) { + Object.assign(groupCategory, {groupsByRef}); + } + + const groupData = results.filter(x => x instanceof Group); + const groupCategoryData = results.filter(x => x instanceof GroupCategory); + + return {groupData, groupCategoryData}; + } + }, + + { + title: `Process homepage layout file`, + files: [HOMEPAGE_LAYOUT_DATA_FILE], + + documentMode: documentModes.headerAndEntries, + processHeaderDocument: processHomepageLayoutDocument, + processEntryDocument: processHomepageLayoutRowDocument, + + save(results) { + if (!results[0]) { + return; + } + + const { header: homepageLayout, entries: rows } = results[0]; + Object.assign(homepageLayout, {rows}); + return {homepageLayout}; + } + }, + + // TODO: WD.wikiInfo.enableNews && + { + title: `Process news data file`, + file: NEWS_DATA_FILE, + + documentMode: documentModes.allInOne, + processDocument: processNewsEntryDocument, + + save(newsData) { + sortByDate(newsData); + newsData.reverse(); + + return {newsData}; + } + }, + + { + title: `Process art tags file`, + file: ART_TAG_DATA_FILE, + + documentMode: documentModes.allInOne, + processDocument: processArtTagDocument, + + save(artTagData) { + artTagData.sort(sortByName); + + return {artTagData}; + } + }, + + { + title: `Process static pages file`, + file: STATIC_PAGE_DATA_FILE, + + documentMode: documentModes.allInOne, + processDocument: processStaticPageDocument, + + save(staticPageData) { + return {staticPageData}; + } + }, +]; + +export async function loadAndProcessDataDocuments({ + dataPath, +}) { + const processDataAggregate = openAggregate({message: `Errors processing data files`}); + const wikiDataResult = {}; + + function decorateErrorWithFile(fn) { + return (x, index, array) => { + try { + return fn(x, index, array); + } catch (error) { + error.message += ( + (error.message.includes('\n') ? '\n' : ' ') + + `(file: ${color.bright(color.blue(path.relative(dataPath, x.file)))})` + ); + throw error; + } + }; + } + + for (const dataStep of dataSteps) { + await processDataAggregate.nestAsync( + {message: `Errors during data step: ${dataStep.title}`}, + async ({call, callAsync, map, mapAsync, nest}) => { + const { documentMode } = dataStep; + + if (!(Object.values(documentModes).includes(documentMode))) { + throw new Error(`Invalid documentMode: ${documentMode.toString()}`); + } + + if (documentMode === documentModes.allInOne || documentMode === documentModes.oneDocumentTotal) { + if (!dataStep.file) { + throw new Error(`Expected 'file' property for ${documentMode.toString()}`); + } + + const file = path.join(dataPath, + (typeof dataStep.file === 'function' + ? await callAsync(dataStep.file, dataPath) + : dataStep.file)); + + const readResult = await callAsync(readFile, file, 'utf-8'); + + if (!readResult) { + return; + } + + const yamlResult = (documentMode === documentModes.oneDocumentTotal + ? call(yaml.load, readResult) + : call(yaml.loadAll, readResult)); + + if (!yamlResult) { + return; + } + + let processResults; + + if (documentMode === documentModes.oneDocumentTotal) { + nest({message: `Errors processing document`}, ({ call }) => { + processResults = call(dataStep.processDocument, yamlResult); + }); + } else { + const { result, aggregate } = mapAggregate( + yamlResult, + decorateErrorWithIndex(dataStep.processDocument), + {message: `Errors processing documents`} + ); + processResults = result; + call(aggregate.close); + } + + if (!processResults) return; + + const saveResult = call(dataStep.save, processResults); + + if (!saveResult) return; + + Object.assign(wikiDataResult, saveResult); + + return; + } + + if (!dataStep.files) { + throw new Error(`Expected 'files' property for ${documentMode.toString()}`); + } + + const files = ( + (typeof dataStep.files === 'function' + ? await callAsync(dataStep.files, dataPath) + : dataStep.files) + .map(file => path.join(dataPath, file))); + + const readResults = await mapAsync( + files, + file => (readFile(file, 'utf-8') + .then(contents => ({file, contents}))), + {message: `Errors reading data files`}); + + const yamlResults = map( + readResults, + decorateErrorWithFile( + ({ file, contents }) => ({file, documents: yaml.loadAll(contents)})), + {message: `Errors parsing data files as valid YAML`}); + + let processResults; + + if (documentMode === documentModes.headerAndEntries) { + nest({message: `Errors processing data files as valid documents`}, ({ call, map }) => { + processResults = []; + + yamlResults.forEach(({ file, documents }) => { + const [ headerDocument, ...entryDocuments ] = documents; + + const header = call( + decorateErrorWithFile( + ({ document }) => dataStep.processHeaderDocument(document)), + {file, document: headerDocument}); + + // Don't continue processing files whose header + // document is invalid - the entire file is excempt + // from data in this case. + if (!header) { + return; + } + + const entries = map( + entryDocuments.map(document => ({file, document})), + decorateErrorWithFile( + decorateErrorWithIndex( + ({ document }) => dataStep.processEntryDocument(document))), + {message: `Errors processing entry documents`}); + + // Entries may be incomplete (i.e. any errored + // documents won't have a processed output + // represented here) - this is intentional! By + // principle, partial output is preferred over + // erroring an entire file. + processResults.push({header, entries}); + }); + }); + } + + if (documentMode === documentModes.onePerFile) { + nest({message: `Errors processing data files as valid documents`}, ({ call, map }) => { + processResults = []; + + yamlResults.forEach(({ file, documents }) => { + if (documents.length > 1) { + call(decorateErrorWithFile(() => { + throw new Error(`Only expected one document to be present per file`); + })); + return; + } + + const result = call( + decorateErrorWithFile( + ({ document }) => dataStep.processDocument(document)), + {file, document: documents[0]}); + + if (!result) { + return; + } + + processResults.push(result); + }); + }); + } + + const saveResult = call(dataStep.save, processResults); + + if (!saveResult) return; + + Object.assign(wikiDataResult, saveResult); + }); + } + + return { + aggregate: processDataAggregate, + result: wikiDataResult + }; +} + +// Data linking! Basically, provide (portions of) wikiData to the Things which +// require it - they'll expose dynamically computed properties as a result (many +// of which are required for page HTML generation). +export function linkWikiDataArrays(wikiData) { + function assignWikiData(things, ...keys) { + for (let i = 0; i < things.length; i++) { + for (let j = 0; j < keys.length; j++) { + const key = keys[j]; + things[i][key] = wikiData[key]; + } + } + } + + const WD = wikiData; + + assignWikiData(WD.albumData, 'artistData', 'artTagData', 'groupData', 'trackData'); + WD.albumData.forEach(album => assignWikiData(album.trackGroups, 'trackData')); + + assignWikiData(WD.trackData, 'albumData', 'artistData', 'artTagData', 'flashData', 'trackData'); + assignWikiData(WD.artistData, 'albumData', 'artistData', 'flashData', 'trackData'); + assignWikiData(WD.groupData, 'albumData', 'groupCategoryData'); + assignWikiData(WD.groupCategoryData, 'groupData'); + assignWikiData(WD.flashData, 'artistData', 'flashActData', 'trackData'); + assignWikiData(WD.flashActData, 'flashData'); + assignWikiData(WD.artTagData, 'albumData', 'trackData'); + assignWikiData(WD.homepageLayout.rows, 'albumData', 'groupData'); +} + +export function sortWikiDataArrays(wikiData) { + Object.assign(wikiData, { + albumData: sortByDate(wikiData.albumData.slice()), + trackData: sortByDate(wikiData.trackData.slice()) + }); + + // Re-link data arrays, so that every object has the new, sorted versions. + // Note that the sorting step deliberately creates new arrays (mutating + // slices instead of the original arrays) - this is so that the object + // caching system understands that it's working with a new ordering. + // We still need to actually provide those updated arrays over again! + linkWikiDataArrays(wikiData); +} + +// Warn about directories which are reused across more than one of the same type +// of Thing. Directories are the unique identifier for most data objects across +// the wiki, so we have to make sure they aren't duplicated! This also +// altogether filters out instances of things with duplicate directories (so if +// two tracks share the directory "megalovania", they'll both be skipped for the +// build, for example). +export function filterDuplicateDirectories(wikiData) { + const deduplicateSpec = [ + 'albumData', + 'artTagData', + 'flashData', + 'groupData', + 'newsData', + 'trackData', + ]; + + const aggregate = openAggregate({message: `Duplicate directories found`}); + for (const thingDataProp of deduplicateSpec) { + const thingData = wikiData[thingDataProp]; + aggregate.nest({message: `Duplicate directories found in ${color.green('wikiData.' + thingDataProp)}`}, ({ call }) => { + const directoryPlaces = Object.create(null); + const duplicateDirectories = []; + for (const thing of thingData) { + const { directory } = thing; + if (directory in directoryPlaces) { + directoryPlaces[directory].push(thing); + duplicateDirectories.push(directory); + } else { + directoryPlaces[directory] = [thing]; + } + } + if (!duplicateDirectories.length) return; + duplicateDirectories.sort((a, b) => { + const aL = a.toLowerCase(); + const bL = b.toLowerCase(); + return aL < bL ? -1 : aL > bL ? 1 : 0; + }); + for (const directory of duplicateDirectories) { + const places = directoryPlaces[directory]; + call(() => { + throw new Error(`Duplicate directory ${color.green(directory)}:\n` + + places.map(thing => ` - ` + inspect(thing)).join('\n')); + }); + } + const allDuplicatedThings = Object.values(directoryPlaces).filter(arr => arr.length > 1).flat(); + const filteredThings = thingData.filter(thing => !allDuplicatedThings.includes(thing)); + wikiData[thingDataProp] = filteredThings; + }); + } + + try { + aggregate.close(); + return aggregate; + } catch (error) { + // Duplicate entries were found and filtered out, resulting in altered + // wikiData arrays. These must be re-linked so objects receive the new + // data. + linkWikiDataArrays(wikiData); + return error; + } +} + +// Warn about references across data which don't match anything. This involves +// using the find() functions on all references, setting it to 'error' mode, and +// collecting everything in a structured logged (which gets logged if there are +// any errors). At the same time, we remove errored references from the thing's +// data array. +export function filterReferenceErrors(wikiData) { + const referenceSpec = [ + ['albumData', { + artistContribsByRef: '_contrib', + coverArtistContribsByRef: '_contrib', + trackCoverArtistContribsByRef: '_contrib', + wallpaperArtistContribsByRef: '_contrib', + bannerArtistContribsByRef: '_contrib', + groupsByRef: 'group', + artTagsByRef: 'artTag', + }], + + ['trackData', { + artistContribsByRef: '_contrib', + contributorContribsByRef: '_contrib', + coverArtistContribsByRef: '_contrib', + referencedTracksByRef: 'track', + artTagsByRef: 'artTag', + originalReleaseTrackByRef: 'track', + }], + + ['groupCategoryData', { + groupsByRef: 'group', + }], + + ['homepageLayout.rows', { + sourceGroupsByRef: 'group', + sourceAlbumsByRef: 'album', + }], + + ['flashData', { + contributorContribsByRef: '_contrib', + featuredTracksByRef: 'track', + }], + + ['flashActData', { + flashesByRef: 'flash', + }], + ]; + + function getNestedProp(obj, key) { + const recursive = (o, k) => (k.length === 1 + ? o[k[0]] + : recursive(o[k[0]], k.slice(1))); + const keys = key.split(/(?<=(?<!\\)(?:\\\\)*)\./); + return recursive(obj, keys); + } + + const aggregate = openAggregate({message: `Errors validating between-thing references in data`}); + const boundFind = bindFind(wikiData, {mode: 'error'}); + for (const [ thingDataProp, propSpec ] of referenceSpec) { + const thingData = getNestedProp(wikiData, thingDataProp); + aggregate.nest({message: `Reference errors in ${color.green('wikiData.' + thingDataProp)}`}, ({ nest }) => { + for (const thing of thingData) { + nest({message: `Reference errors in ${inspect(thing)}`}, ({ filter }) => { + for (const [ property, findFnKey ] of Object.entries(propSpec)) { + if (!thing[property]) continue; + if (findFnKey === '_contrib') { + thing[property] = filter(thing[property], + decorateErrorWithIndex(({ who }) => { + const alias = find.artist(who, wikiData.artistAliasData, {mode: 'quiet'}); + if (alias) { + const original = find.artist(alias.aliasedArtistRef, wikiData.artistData, {mode: 'quiet'}); + throw new Error(`Reference ${color.red(who)} is to an alias, should be ${color.green(original.name)}`); + } + return boundFind.artist(who); + }), + {message: `Reference errors in contributions ${color.green(property)} (${color.green('find.artist')})`}); + continue; + } + const findFn = boundFind[findFnKey]; + const value = thing[property]; + if (Array.isArray(value)) { + thing[property] = filter(value, decorateErrorWithIndex(findFn), + {message: `Reference errors in property ${color.green(property)} (${color.green('find.' + findFnKey)})`}); + } else { + nest({message: `Reference error in property ${color.green(property)} (${color.green('find.' + findFnKey)})`}, ({ call }) => { + try { + call(findFn, value); + } catch (error) { + thing[property] = null; + throw error; + } + }); + } + } + }); + } + }); + } + + return aggregate; +} |