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Migrate Feed updating and build xml to new model

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advplyr 2024-12-15 16:56:59 -06:00
parent 369c05936b
commit f8fbd3ac8c
10 changed files with 373 additions and 426 deletions
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169
server/objects/Feed.js
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@ -1,15 +1,6 @@
const Path = require('path')
const uuidv4 = require('uuid').v4
const FeedMeta = require('./FeedMeta')
const FeedEpisode = require('./FeedEpisode')
const date = require('../libs/dateAndTime')
const RSS = require('../libs/rss')
const { createNewSortInstance } = require('../libs/fastSort')
const naturalSort = createNewSortInstance({
comparer: new Intl.Collator(undefined, { numeric: true, sensitivity: 'base' }).compare
})
class Feed {
constructor(feed) {
this.id = null
@ -82,165 +73,5 @@ class Feed {
if (!episode) return null
return episode.fullPath
}
/**
* If chapters for an audiobook match the audio tracks then use chapter titles instead of audio file names
*
* @param {import('../objects/LibraryItem')} libraryItem
* @returns {boolean}
*/
checkUseChapterTitlesForEpisodes(libraryItem) {
const tracks = libraryItem.media.tracks
const chapters = libraryItem.media.chapters
if (tracks.length !== chapters.length) return false
for (let i = 0; i < tracks.length; i++) {
if (Math.abs(chapters[i].start - tracks[i].startOffset) >= 1) {
return false
}
}
return true
}
updateFromItem(libraryItem) {
const media = libraryItem.media
const mediaMetadata = media.metadata
const isPodcast = libraryItem.mediaType === 'podcast'
const author = isPodcast ? mediaMetadata.author : mediaMetadata.authorName
this.entityUpdatedAt = libraryItem.updatedAt
this.coverPath = media.coverPath || null
const coverFileExtension = this.coverPath ? Path.extname(media.coverPath) : null
this.meta.title = mediaMetadata.title
this.meta.description = mediaMetadata.description
this.meta.author = author
this.meta.imageUrl = media.coverPath ? `/feed/${this.slug}/cover${coverFileExtension}` : `/Logo.png`
this.meta.explicit = !!mediaMetadata.explicit
this.meta.type = mediaMetadata.type
this.meta.language = mediaMetadata.language
this.episodes = []
if (isPodcast) {
// PODCAST EPISODES
media.episodes.forEach((episode) => {
if (episode.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = episode.updatedAt
const feedEpisode = new FeedEpisode()
feedEpisode.setFromPodcastEpisode(libraryItem, this.serverAddress, this.slug, episode, this.meta)
this.episodes.push(feedEpisode)
})
} else {
// AUDIOBOOK EPISODES
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(libraryItem)
media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(libraryItem, this.serverAddress, this.slug, audioTrack, this.meta, useChapterTitles)
this.episodes.push(feedEpisode)
})
}
this.updatedAt = Date.now()
}
updateFromCollection(collectionExpanded) {
const itemsWithTracks = collectionExpanded.books.filter((libraryItem) => libraryItem.media.tracks.length)
const firstItemWithCover = itemsWithTracks.find((item) => item.media.coverPath)
this.entityUpdatedAt = collectionExpanded.lastUpdate
this.coverPath = firstItemWithCover?.media.coverPath || null
const coverFileExtension = this.coverPath ? Path.extname(this.coverPath) : null
this.meta.title = collectionExpanded.name
this.meta.description = collectionExpanded.description || ''
this.meta.author = this.getAuthorsStringFromLibraryItems(itemsWithTracks)
this.meta.imageUrl = this.coverPath ? `/feed/${this.slug}/cover${coverFileExtension}` : `/Logo.png`
this.meta.explicit = !!itemsWithTracks.some((li) => li.media.metadata.explicit) // explicit if any item is explicit
this.episodes = []
// Used for calculating pubdate
const earliestItemAddedAt = itemsWithTracks.reduce((earliest, item) => (item.addedAt < earliest ? item.addedAt : earliest), itemsWithTracks[0].addedAt)
itemsWithTracks.forEach((item, index) => {
if (item.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = item.updatedAt
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(item)
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
// Offset pubdate to ensure correct order
let trackTimeOffset = isNaN(audioTrack.index) ? 0 : Number(audioTrack.index) * 1000 // Offset track
trackTimeOffset += index * 1000 // Offset item
const episodePubDateOverride = date.format(new Date(earliestItemAddedAt + trackTimeOffset), 'ddd, DD MMM YYYY HH:mm:ss [GMT]')
feedEpisode.setFromAudiobookTrack(item, this.serverAddress, this.slug, audioTrack, this.meta, useChapterTitles, episodePubDateOverride)
this.episodes.push(feedEpisode)
})
})
this.updatedAt = Date.now()
}
updateFromSeries(seriesExpanded) {
let itemsWithTracks = seriesExpanded.books.filter((libraryItem) => libraryItem.media.tracks.length)
// Sort series items by series sequence
itemsWithTracks = naturalSort(itemsWithTracks).asc((li) => li.media.metadata.getSeriesSequence(seriesExpanded.id))
const firstItemWithCover = itemsWithTracks.find((item) => item.media.coverPath)
this.entityUpdatedAt = seriesExpanded.updatedAt
this.coverPath = firstItemWithCover?.media.coverPath || null
const coverFileExtension = this.coverPath ? Path.extname(this.coverPath) : null
this.meta.title = seriesExpanded.name
this.meta.description = seriesExpanded.description || ''
this.meta.author = this.getAuthorsStringFromLibraryItems(itemsWithTracks)
this.meta.imageUrl = this.coverPath ? `/feed/${this.slug}/cover${coverFileExtension}` : `/Logo.png`
this.meta.explicit = !!itemsWithTracks.some((li) => li.media.metadata.explicit) // explicit if any item is explicit
this.episodes = []
// Used for calculating pubdate
const earliestItemAddedAt = itemsWithTracks.reduce((earliest, item) => (item.addedAt < earliest ? item.addedAt : earliest), itemsWithTracks[0].addedAt)
itemsWithTracks.forEach((item, index) => {
if (item.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = item.updatedAt
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(item)
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
// Offset pubdate to ensure correct order
let trackTimeOffset = isNaN(audioTrack.index) ? 0 : Number(audioTrack.index) * 1000 // Offset track
trackTimeOffset += index * 1000 // Offset item
const episodePubDateOverride = date.format(new Date(earliestItemAddedAt + trackTimeOffset), 'ddd, DD MMM YYYY HH:mm:ss [GMT]')
feedEpisode.setFromAudiobookTrack(item, this.serverAddress, this.slug, audioTrack, this.meta, useChapterTitles, episodePubDateOverride)
this.episodes.push(feedEpisode)
})
})
this.updatedAt = Date.now()
}
buildXml(originalHostPrefix) {
var rssfeed = new RSS(this.meta.getRSSData(originalHostPrefix))
this.episodes.forEach((ep) => {
rssfeed.item(ep.getRSSData(originalHostPrefix))
})
return rssfeed.xml()
}
getAuthorsStringFromLibraryItems(libraryItems) {
let itemAuthors = []
libraryItems.forEach((item) => itemAuthors.push(...item.media.metadata.authors.map((au) => au.name)))
itemAuthors = [...new Set(itemAuthors)] // Filter out dupes
let author = itemAuthors.slice(0, 3).join(', ')
if (itemAuthors.length > 3) {
author += ' & more'
}
return author
}
}
module.exports = Feed