audiobookshelf/server/models/LibraryItem.js

795 lines
30 KiB
JavaScript

const { DataTypes, Model } = require('sequelize')
const Logger = require('../Logger')
const oldLibraryItem = require('../objects/LibraryItem')
const libraryFilters = require('../utils/queries/libraryFilters')
const { areEquivalent } = require('../utils/index')
module.exports = (sequelize) => {
class LibraryItem extends Model {
/**
* Loads all podcast episodes, all library items in chunks of 500, then maps them to old library items
* @todo this is a temporary solution until we can use the sqlite without loading all the library items on init
*
* @returns {Promise<objects.LibraryItem[]>} old library items
*/
static async loadAllLibraryItems() {
let start = Date.now()
Logger.info(`[LibraryItem] Loading podcast episodes...`)
const podcastEpisodes = await sequelize.models.podcastEpisode.findAll()
Logger.info(`[LibraryItem] Finished loading ${podcastEpisodes.length} podcast episodes in ${((Date.now() - start) / 1000).toFixed(2)}s`)
start = Date.now()
Logger.info(`[LibraryItem] Loading library items...`)
let libraryItems = await this.getAllOldLibraryItemsIncremental()
Logger.info(`[LibraryItem] Finished loading ${libraryItems.length} library items in ${((Date.now() - start) / 1000).toFixed(2)}s`)
// Map LibraryItem to old library item
libraryItems = libraryItems.map(li => {
if (li.mediaType === 'podcast') {
li.media.podcastEpisodes = podcastEpisodes.filter(pe => pe.podcastId === li.media.id)
}
return this.getOldLibraryItem(li)
})
return libraryItems
}
/**
* Loads all LibraryItem in batches of 500
* @todo temporary solution
*
* @param {Model<LibraryItem>[]} libraryItems
* @param {number} offset
* @returns {Promise<Model<LibraryItem>[]>}
*/
static async getAllOldLibraryItemsIncremental(libraryItems = [], offset = 0) {
const limit = 500
const rows = await this.getLibraryItemsIncrement(offset, limit)
libraryItems.push(...rows)
if (!rows.length || rows.length < limit) {
return libraryItems
}
Logger.info(`[LibraryItem] Loaded ${rows.length} library items. ${libraryItems.length} loaded so far.`)
return this.getAllOldLibraryItemsIncremental(libraryItems, offset + rows.length)
}
/**
* Gets library items partially expanded, not including podcast episodes
* @todo temporary solution
*
* @param {number} offset
* @param {number} limit
* @returns {Promise<Model<LibraryItem>[]>} LibraryItem
*/
static getLibraryItemsIncrement(offset, limit) {
return this.findAll({
benchmark: true,
logging: (sql, timeMs) => {
console.log(`[Query] Elapsed ${timeMs}ms.`)
},
include: [
{
model: sequelize.models.book,
include: [
{
model: sequelize.models.author,
through: {
attributes: ['createdAt']
}
},
{
model: sequelize.models.series,
through: {
attributes: ['sequence', 'createdAt']
}
}
]
},
{
model: sequelize.models.podcast
}
],
order: [
['createdAt', 'ASC'],
// Ensure author & series stay in the same order
[sequelize.models.book, sequelize.models.author, sequelize.models.bookAuthor, 'createdAt', 'ASC'],
[sequelize.models.book, sequelize.models.series, 'bookSeries', 'createdAt', 'ASC']
],
offset,
limit
})
}
/**
* Currently unused because this is too slow and uses too much mem
*
* @returns {Array<objects.LibraryItem>} old library items
*/
static async getAllOldLibraryItems() {
let libraryItems = await this.findAll({
include: [
{
model: sequelize.models.book,
include: [
{
model: sequelize.models.author,
through: {
attributes: []
}
},
{
model: sequelize.models.series,
through: {
attributes: ['sequence']
}
}
]
},
{
model: sequelize.models.podcast,
include: [
{
model: sequelize.models.podcastEpisode
}
]
}
]
})
return libraryItems.map(ti => this.getOldLibraryItem(ti))
}
/**
* Convert an expanded LibraryItem into an old library item
*
* @param {Model<LibraryItem>} libraryItemExpanded
* @returns {oldLibraryItem}
*/
static getOldLibraryItem(libraryItemExpanded) {
let media = null
if (libraryItemExpanded.mediaType === 'book') {
media = sequelize.models.book.getOldBook(libraryItemExpanded)
} else if (libraryItemExpanded.mediaType === 'podcast') {
media = sequelize.models.podcast.getOldPodcast(libraryItemExpanded)
}
return new oldLibraryItem({
id: libraryItemExpanded.id,
ino: libraryItemExpanded.ino,
oldLibraryItemId: libraryItemExpanded.extraData?.oldLibraryItemId || null,
libraryId: libraryItemExpanded.libraryId,
folderId: libraryItemExpanded.libraryFolderId,
path: libraryItemExpanded.path,
relPath: libraryItemExpanded.relPath,
isFile: libraryItemExpanded.isFile,
mtimeMs: libraryItemExpanded.mtime?.valueOf(),
ctimeMs: libraryItemExpanded.ctime?.valueOf(),
birthtimeMs: libraryItemExpanded.birthtime?.valueOf(),
addedAt: libraryItemExpanded.createdAt.valueOf(),
updatedAt: libraryItemExpanded.updatedAt.valueOf(),
lastScan: libraryItemExpanded.lastScan?.valueOf(),
scanVersion: libraryItemExpanded.lastScanVersion,
isMissing: !!libraryItemExpanded.isMissing,
isInvalid: !!libraryItemExpanded.isInvalid,
mediaType: libraryItemExpanded.mediaType,
media,
libraryFiles: libraryItemExpanded.libraryFiles
})
}
static async fullCreateFromOld(oldLibraryItem) {
const newLibraryItem = await this.create(this.getFromOld(oldLibraryItem))
if (oldLibraryItem.mediaType === 'book') {
const bookObj = sequelize.models.book.getFromOld(oldLibraryItem.media)
bookObj.libraryItemId = newLibraryItem.id
const newBook = await sequelize.models.book.create(bookObj)
const oldBookAuthors = oldLibraryItem.media.metadata.authors || []
const oldBookSeriesAll = oldLibraryItem.media.metadata.series || []
for (const oldBookAuthor of oldBookAuthors) {
await sequelize.models.bookAuthor.create({ authorId: oldBookAuthor.id, bookId: newBook.id })
}
for (const oldSeries of oldBookSeriesAll) {
await sequelize.models.bookSeries.create({ seriesId: oldSeries.id, bookId: newBook.id, sequence: oldSeries.sequence })
}
} else if (oldLibraryItem.mediaType === 'podcast') {
const podcastObj = sequelize.models.podcast.getFromOld(oldLibraryItem.media)
podcastObj.libraryItemId = newLibraryItem.id
const newPodcast = await sequelize.models.podcast.create(podcastObj)
const oldEpisodes = oldLibraryItem.media.episodes || []
for (const oldEpisode of oldEpisodes) {
const episodeObj = sequelize.models.podcastEpisode.getFromOld(oldEpisode)
episodeObj.libraryItemId = newLibraryItem.id
episodeObj.podcastId = newPodcast.id
await sequelize.models.podcastEpisode.create(episodeObj)
}
}
return newLibraryItem
}
static async fullUpdateFromOld(oldLibraryItem) {
const libraryItemExpanded = await this.findByPk(oldLibraryItem.id, {
include: [
{
model: sequelize.models.book,
include: [
{
model: sequelize.models.author,
through: {
attributes: []
}
},
{
model: sequelize.models.series,
through: {
attributes: ['id', 'sequence']
}
}
]
},
{
model: sequelize.models.podcast,
include: [
{
model: sequelize.models.podcastEpisode
}
]
}
]
})
if (!libraryItemExpanded) return false
let hasUpdates = false
// Check update Book/Podcast
if (libraryItemExpanded.media) {
let updatedMedia = null
if (libraryItemExpanded.mediaType === 'podcast') {
updatedMedia = sequelize.models.podcast.getFromOld(oldLibraryItem.media)
const existingPodcastEpisodes = libraryItemExpanded.media.podcastEpisodes || []
const updatedPodcastEpisodes = oldLibraryItem.media.episodes || []
for (const existingPodcastEpisode of existingPodcastEpisodes) {
// Episode was removed
if (!updatedPodcastEpisodes.some(ep => ep.id === existingPodcastEpisode.id)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" episode "${existingPodcastEpisode.title}" was removed`)
await existingPodcastEpisode.destroy()
hasUpdates = true
}
}
for (const updatedPodcastEpisode of updatedPodcastEpisodes) {
const existingEpisodeMatch = existingPodcastEpisodes.find(ep => ep.id === updatedPodcastEpisode.id)
if (!existingEpisodeMatch) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" episode "${updatedPodcastEpisode.title}" was added`)
await sequelize.models.podcastEpisode.createFromOld(updatedPodcastEpisode)
hasUpdates = true
} else {
const updatedEpisodeCleaned = sequelize.models.podcastEpisode.getFromOld(updatedPodcastEpisode)
let episodeHasUpdates = false
for (const key in updatedEpisodeCleaned) {
let existingValue = existingEpisodeMatch[key]
if (existingValue instanceof Date) existingValue = existingValue.valueOf()
if (!areEquivalent(updatedEpisodeCleaned[key], existingValue, true)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" episode "${existingEpisodeMatch.title}" ${key} was updated from "${existingValue}" to "${updatedEpisodeCleaned[key]}"`)
episodeHasUpdates = true
}
}
if (episodeHasUpdates) {
await existingEpisodeMatch.update(updatedEpisodeCleaned)
hasUpdates = true
}
}
}
} else if (libraryItemExpanded.mediaType === 'book') {
updatedMedia = sequelize.models.book.getFromOld(oldLibraryItem.media)
const existingAuthors = libraryItemExpanded.media.authors || []
const existingSeriesAll = libraryItemExpanded.media.series || []
const updatedAuthors = oldLibraryItem.media.metadata.authors || []
const updatedSeriesAll = oldLibraryItem.media.metadata.series || []
for (const existingAuthor of existingAuthors) {
// Author was removed from Book
if (!updatedAuthors.some(au => au.id === existingAuthor.id)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" author "${existingAuthor.name}" was removed`)
await sequelize.models.bookAuthor.removeByIds(existingAuthor.id, libraryItemExpanded.media.id)
hasUpdates = true
}
}
for (const updatedAuthor of updatedAuthors) {
// Author was added
if (!existingAuthors.some(au => au.id === updatedAuthor.id)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" author "${updatedAuthor.name}" was added`)
await sequelize.models.bookAuthor.create({ authorId: updatedAuthor.id, bookId: libraryItemExpanded.media.id })
hasUpdates = true
}
}
for (const existingSeries of existingSeriesAll) {
// Series was removed
if (!updatedSeriesAll.some(se => se.id === existingSeries.id)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" series "${existingSeries.name}" was removed`)
await sequelize.models.bookSeries.removeByIds(existingSeries.id, libraryItemExpanded.media.id)
hasUpdates = true
}
}
for (const updatedSeries of updatedSeriesAll) {
// Series was added/updated
const existingSeriesMatch = existingSeriesAll.find(se => se.id === updatedSeries.id)
if (!existingSeriesMatch) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" series "${updatedSeries.name}" was added`)
await sequelize.models.bookSeries.create({ seriesId: updatedSeries.id, bookId: libraryItemExpanded.media.id, sequence: updatedSeries.sequence })
hasUpdates = true
} else if (existingSeriesMatch.bookSeries.sequence !== updatedSeries.sequence) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" series "${updatedSeries.name}" sequence was updated from "${existingSeriesMatch.bookSeries.sequence}" to "${updatedSeries.sequence}"`)
await existingSeriesMatch.bookSeries.update({ id: updatedSeries.id, sequence: updatedSeries.sequence })
hasUpdates = true
}
}
}
let hasMediaUpdates = false
for (const key in updatedMedia) {
let existingValue = libraryItemExpanded.media[key]
if (existingValue instanceof Date) existingValue = existingValue.valueOf()
if (!areEquivalent(updatedMedia[key], existingValue, true)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" ${libraryItemExpanded.mediaType}.${key} updated from ${existingValue} to ${updatedMedia[key]}`)
hasMediaUpdates = true
}
}
if (hasMediaUpdates && updatedMedia) {
await libraryItemExpanded.media.update(updatedMedia)
hasUpdates = true
}
}
const updatedLibraryItem = this.getFromOld(oldLibraryItem)
let hasLibraryItemUpdates = false
for (const key in updatedLibraryItem) {
let existingValue = libraryItemExpanded[key]
if (existingValue instanceof Date) existingValue = existingValue.valueOf()
if (!areEquivalent(updatedLibraryItem[key], existingValue, true)) {
Logger.dev(`[LibraryItem] "${libraryItemExpanded.media.title}" ${key} updated from ${existingValue} to ${updatedLibraryItem[key]}`)
hasLibraryItemUpdates = true
}
}
if (hasLibraryItemUpdates) {
await libraryItemExpanded.update(updatedLibraryItem)
Logger.info(`[LibraryItem] Library item "${libraryItemExpanded.id}" updated`)
hasUpdates = true
}
return hasUpdates
}
static getFromOld(oldLibraryItem) {
const extraData = {}
if (oldLibraryItem.oldLibraryItemId) {
extraData.oldLibraryItemId = oldLibraryItem.oldLibraryItemId
}
return {
id: oldLibraryItem.id,
ino: oldLibraryItem.ino,
path: oldLibraryItem.path,
relPath: oldLibraryItem.relPath,
mediaId: oldLibraryItem.media.id,
mediaType: oldLibraryItem.mediaType,
isFile: !!oldLibraryItem.isFile,
isMissing: !!oldLibraryItem.isMissing,
isInvalid: !!oldLibraryItem.isInvalid,
mtime: oldLibraryItem.mtimeMs,
ctime: oldLibraryItem.ctimeMs,
birthtime: oldLibraryItem.birthtimeMs,
size: oldLibraryItem.size,
lastScan: oldLibraryItem.lastScan,
lastScanVersion: oldLibraryItem.scanVersion,
libraryId: oldLibraryItem.libraryId,
libraryFolderId: oldLibraryItem.folderId,
libraryFiles: oldLibraryItem.libraryFiles?.map(lf => lf.toJSON()) || [],
extraData
}
}
static removeById(libraryItemId) {
return this.destroy({
where: {
id: libraryItemId
},
individualHooks: true
})
}
/**
* Get old library item by id
* @param {string} libraryItemId
* @returns {oldLibraryItem}
*/
static async getOldById(libraryItemId) {
if (!libraryItemId) return null
const libraryItem = await this.findByPk(libraryItemId, {
include: [
{
model: sequelize.models.book,
include: [
{
model: sequelize.models.author,
through: {
attributes: []
}
},
{
model: sequelize.models.series,
through: {
attributes: ['sequence']
}
}
]
},
{
model: sequelize.models.podcast,
include: [
{
model: sequelize.models.podcastEpisode
}
]
}
]
})
if (!libraryItem) return null
return this.getOldLibraryItem(libraryItem)
}
/**
* Get library items using filter and sort
* @param {oldLibrary} library
* @param {oldUser} user
* @param {object} options
* @returns {object} { libraryItems:oldLibraryItem[], count:number }
*/
static async getByFilterAndSort(library, user, options) {
let start = Date.now()
const { libraryItems, count } = await libraryFilters.getFilteredLibraryItems(library, user, options)
Logger.debug(`Loaded ${libraryItems.length} of ${count} items for libary page in ${((Date.now() - start) / 1000).toFixed(2)}s`)
return {
libraryItems: libraryItems.map(li => {
const oldLibraryItem = this.getOldLibraryItem(li).toJSONMinified()
if (li.collapsedSeries) {
oldLibraryItem.collapsedSeries = li.collapsedSeries
}
if (li.series) {
oldLibraryItem.media.metadata.series = li.series
}
if (li.rssFeed) {
oldLibraryItem.rssFeed = sequelize.models.feed.getOldFeed(li.rssFeed).toJSONMinified()
}
if (li.media.numEpisodes) {
oldLibraryItem.media.numEpisodes = li.media.numEpisodes
}
if (li.size && !oldLibraryItem.media.size) {
oldLibraryItem.media.size = li.size
}
if (li.numEpisodesIncomplete) {
oldLibraryItem.numEpisodesIncomplete = li.numEpisodesIncomplete
}
return oldLibraryItem
}),
count
}
}
/**
* Get home page data personalized shelves
* @param {oldLibrary} library
* @param {oldUser} user
* @param {string[]} include
* @param {number} limit
* @returns {object[]} array of shelf objects
*/
static async getPersonalizedShelves(library, user, include, limit) {
const fullStart = Date.now() // Used for testing load times
const shelves = []
// "Continue Listening" shelf
const itemsInProgressPayload = await libraryFilters.getMediaItemsInProgress(library, user, include, limit, false)
if (itemsInProgressPayload.items.length) {
const ebookOnlyItemsInProgress = itemsInProgressPayload.items.filter(li => li.media.isEBookOnly)
const audioOnlyItemsInProgress = itemsInProgressPayload.items.filter(li => !li.media.isEBookOnly)
shelves.push({
id: 'continue-listening',
label: 'Continue Listening',
labelStringKey: 'LabelContinueListening',
type: library.isPodcast ? 'episode' : 'book',
entities: audioOnlyItemsInProgress,
total: itemsInProgressPayload.count
})
if (ebookOnlyItemsInProgress.length) {
// "Continue Reading" shelf
shelves.push({
id: 'continue-reading',
label: 'Continue Reading',
labelStringKey: 'LabelContinueReading',
type: 'book',
entities: ebookOnlyItemsInProgress,
total: itemsInProgressPayload.count
})
}
}
Logger.debug(`Loaded ${itemsInProgressPayload.items.length} of ${itemsInProgressPayload.count} items for "Continue Listening/Reading" in ${((Date.now() - fullStart) / 1000).toFixed(2)}s`)
let start = Date.now()
if (library.isBook) {
start = Date.now()
// "Continue Series" shelf
const continueSeriesPayload = await libraryFilters.getLibraryItemsContinueSeries(library, user, include, limit)
if (continueSeriesPayload.libraryItems.length) {
shelves.push({
id: 'continue-series',
label: 'Continue Series',
labelStringKey: 'LabelContinueSeries',
type: 'book',
entities: continueSeriesPayload.libraryItems,
total: continueSeriesPayload.count
})
}
Logger.debug(`Loaded ${continueSeriesPayload.libraryItems.length} of ${continueSeriesPayload.count} items for "Continue Series" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
} else if (library.isPodcast) {
// "Newest Episodes" shelf
const newestEpisodesPayload = await libraryFilters.getNewestPodcastEpisodes(library, user, limit)
if (newestEpisodesPayload.libraryItems.length) {
shelves.push({
id: 'newest-episodes',
label: 'Newest Episodes',
labelStringKey: 'LabelNewestEpisodes',
type: 'episode',
entities: newestEpisodesPayload.libraryItems,
total: newestEpisodesPayload.count
})
}
Logger.debug(`Loaded ${newestEpisodesPayload.libraryItems.length} of ${newestEpisodesPayload.count} episodes for "Newest Episodes" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
}
start = Date.now()
// "Recently Added" shelf
const mostRecentPayload = await libraryFilters.getLibraryItemsMostRecentlyAdded(library, user, include, limit)
if (mostRecentPayload.libraryItems.length) {
shelves.push({
id: 'recently-added',
label: 'Recently Added',
labelStringKey: 'LabelRecentlyAdded',
type: library.mediaType,
entities: mostRecentPayload.libraryItems,
total: mostRecentPayload.count
})
}
Logger.debug(`Loaded ${mostRecentPayload.libraryItems.length} of ${mostRecentPayload.count} items for "Recently Added" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
if (library.isBook) {
start = Date.now()
// "Recent Series" shelf
const seriesMostRecentPayload = await libraryFilters.getSeriesMostRecentlyAdded(library, user, include, 5)
if (seriesMostRecentPayload.series.length) {
shelves.push({
id: 'recent-series',
label: 'Recent Series',
labelStringKey: 'LabelRecentSeries',
type: 'series',
entities: seriesMostRecentPayload.series,
total: seriesMostRecentPayload.count
})
}
Logger.debug(`Loaded ${seriesMostRecentPayload.series.length} of ${seriesMostRecentPayload.count} series for "Recent Series" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
start = Date.now()
// "Discover" shelf
const discoverLibraryItemsPayload = await libraryFilters.getLibraryItemsToDiscover(library, user, include, limit)
if (discoverLibraryItemsPayload.libraryItems.length) {
shelves.push({
id: 'discover',
label: 'Discover',
labelStringKey: 'LabelDiscover',
type: library.mediaType,
entities: discoverLibraryItemsPayload.libraryItems,
total: discoverLibraryItemsPayload.count
})
}
Logger.debug(`Loaded ${discoverLibraryItemsPayload.libraryItems.length} of ${discoverLibraryItemsPayload.count} items for "Discover" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
}
start = Date.now()
// "Listen Again" shelf
const mediaFinishedPayload = await libraryFilters.getMediaFinished(library, user, include, limit)
if (mediaFinishedPayload.items.length) {
const ebookOnlyItemsInProgress = mediaFinishedPayload.items.filter(li => li.media.isEBookOnly)
const audioOnlyItemsInProgress = mediaFinishedPayload.items.filter(li => !li.media.isEBookOnly)
shelves.push({
id: 'listen-again',
label: 'Listen Again',
labelStringKey: 'LabelListenAgain',
type: library.isPodcast ? 'episode' : 'book',
entities: audioOnlyItemsInProgress,
total: mediaFinishedPayload.count
})
// "Read Again" shelf
if (ebookOnlyItemsInProgress.length) {
shelves.push({
id: 'read-again',
label: 'Read Again',
labelStringKey: 'LabelReadAgain',
type: 'book',
entities: ebookOnlyItemsInProgress,
total: mediaFinishedPayload.count
})
}
}
Logger.debug(`Loaded ${mediaFinishedPayload.items.length} of ${mediaFinishedPayload.count} items for "Listen/Read Again" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
if (library.isBook) {
start = Date.now()
// "Newest Authors" shelf
const newestAuthorsPayload = await libraryFilters.getNewestAuthors(library, user, limit)
if (newestAuthorsPayload.authors.length) {
shelves.push({
id: 'newest-authors',
label: 'Newest Authors',
labelStringKey: 'LabelNewestAuthors',
type: 'authors',
entities: newestAuthorsPayload.authors,
total: newestAuthorsPayload.count
})
}
Logger.debug(`Loaded ${newestAuthorsPayload.authors.length} of ${newestAuthorsPayload.count} authors for "Newest Authors" in ${((Date.now() - start) / 1000).toFixed(2)}s`)
}
Logger.debug(`Loaded ${shelves.length} personalized shelves in ${((Date.now() - fullStart) / 1000).toFixed(2)}s`)
return shelves
}
/**
* Get book library items for author, optional use user permissions
* @param {oldAuthor} author
* @param {[oldUser]} user
* @returns {Promise<oldLibraryItem[]>}
*/
static async getForAuthor(author, user = null) {
const { libraryItems } = await libraryFilters.getLibraryItemsForAuthor(author, user, undefined, undefined)
return libraryItems.map(li => this.getOldLibraryItem(li))
}
/**
* Get book library items in a collection
* @param {oldCollection} collection
* @returns {Promise<oldLibraryItem[]>}
*/
static async getForCollection(collection) {
const libraryItems = await libraryFilters.getLibraryItemsForCollection(collection)
return libraryItems.map(li => this.getOldLibraryItem(li))
}
/**
* Check if library item exists
* @param {string} libraryItemId
* @returns {Promise<boolean>}
*/
static async checkExistsById(libraryItemId) {
return (await this.count({ where: { id: libraryItemId } })) > 0
}
getMedia(options) {
if (!this.mediaType) return Promise.resolve(null)
const mixinMethodName = `get${sequelize.uppercaseFirst(this.mediaType)}`
return this[mixinMethodName](options)
}
}
LibraryItem.init({
id: {
type: DataTypes.UUID,
defaultValue: DataTypes.UUIDV4,
primaryKey: true
},
ino: DataTypes.STRING,
path: DataTypes.STRING,
relPath: DataTypes.STRING,
mediaId: DataTypes.UUIDV4,
mediaType: DataTypes.STRING,
isFile: DataTypes.BOOLEAN,
isMissing: DataTypes.BOOLEAN,
isInvalid: DataTypes.BOOLEAN,
mtime: DataTypes.DATE(6),
ctime: DataTypes.DATE(6),
birthtime: DataTypes.DATE(6),
size: DataTypes.BIGINT,
lastScan: DataTypes.DATE,
lastScanVersion: DataTypes.STRING,
libraryFiles: DataTypes.JSON,
extraData: DataTypes.JSON
}, {
sequelize,
modelName: 'libraryItem',
indexes: [
{
fields: ['createdAt']
},
{
fields: ['mediaId']
},
{
fields: ['libraryId', 'mediaType']
},
{
fields: ['birthtime']
},
{
fields: ['mtime']
}
]
})
const { library, libraryFolder, book, podcast } = sequelize.models
library.hasMany(LibraryItem)
LibraryItem.belongsTo(library)
libraryFolder.hasMany(LibraryItem)
LibraryItem.belongsTo(libraryFolder)
book.hasOne(LibraryItem, {
foreignKey: 'mediaId',
constraints: false,
scope: {
mediaType: 'book'
}
})
LibraryItem.belongsTo(book, { foreignKey: 'mediaId', constraints: false })
podcast.hasOne(LibraryItem, {
foreignKey: 'mediaId',
constraints: false,
scope: {
mediaType: 'podcast'
}
})
LibraryItem.belongsTo(podcast, { foreignKey: 'mediaId', constraints: false })
LibraryItem.addHook('afterFind', findResult => {
if (!findResult) return
if (!Array.isArray(findResult)) findResult = [findResult]
for (const instance of findResult) {
if (instance.mediaType === 'book' && instance.book !== undefined) {
instance.media = instance.book
instance.dataValues.media = instance.dataValues.book
} else if (instance.mediaType === 'podcast' && instance.podcast !== undefined) {
instance.media = instance.podcast
instance.dataValues.media = instance.dataValues.podcast
}
// To prevent mistakes:
delete instance.book
delete instance.dataValues.book
delete instance.podcast
delete instance.dataValues.podcast
}
})
LibraryItem.addHook('afterDestroy', async instance => {
if (!instance) return
const media = await instance.getMedia()
if (media) {
media.destroy()
}
})
return LibraryItem
}