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Add chapter title scraping and improve error logging

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This commit is contained in:
Harry Rose 2026-03-10 20:43:57 +00:00
parent e8d65ceb88
commit b4b126e39f
2 changed files with 61 additions and 45 deletions
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40
server/models/PodcastEpisode.js
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@ -1,6 +1,7 @@
const { DataTypes, Model } = require('sequelize')
const libraryItemsPodcastFilters = require('../utils/queries/libraryItemsPodcastFilters')
const Logger = require('../Logger')
const { logger } = require('sequelize/lib/utils/logger')
/**
* @typedef ChapterObject
* @property {number} id
@ -87,11 +88,15 @@ class PodcastEpisode extends Model {
} else if (rssPodcastEpisode.chapters?.length) {
podcastEpisode.chapters = rssPodcastEpisode.chapters.map((ch) => ({ ...ch }))
} else {
const timeMarkerRegex = /\b(\d{1,2}):(\d{1,2})(?::(\d{1,2}))?\b/m
const timeMarkerRegex = /\b(\d{1,2}):(\d{1,2})(?::(\d{1,2}))?\b/
const chapterTitleRegex = /\b\d{1,2}:\d{1,2}(?::\d{1,2})?\b(.+)$/
Logger.debug("Podcast didn't have chapters", rssPodcastEpisode.title)
Logger.debug("Podcast episode doesn't have chapters, attempting to generate them from timestamps", rssPodcastEpisode.title)
var errorMessage = null
var descriptionLines = podcastEpisode.description.split('</p>')
var chaptersToPush = []
for (let i = 0; i < descriptionLines.length; i++) {
let line = descriptionLines[i]
Logger.debug('Description Line:', line)
@ -99,7 +104,7 @@ class PodcastEpisode extends Model {
let match = timeMarkerRegex.exec(line)
if (match == null) continue
Logger.debug('matches:', match)
Logger.debug('Matches:', match)
let first = match[1]
let second = match[2]
@ -118,23 +123,42 @@ class PodcastEpisode extends Model {
{
minutes = Number(first)
seconds = Number(second)
} else {
// Unknown timestamp state
errorMessage = `Unknown timestamp format in description, line ${line}`
break
}
let startTime = seconds + minutes * 60 + hours * 60 * 60
let chapter = { title: `Chapter ${i}`, id: i, start: startTime }
let chapterTitleMatch = chapterTitleRegex.exec(line)
Logger.debug('Chapter Title Matches:', chapterTitleMatch)
if (chapterTitleMatch == null && chapterTitleMatch.length >= 2) {
// Unknown chapter state
errorMessage = `Unable to get chapter title from description, line ${line}`
break
}
let chapter = { title: chapterTitleMatch[1].trim(), id: i, start: startTime }
if (podcastEpisode.chapters.length > 0) {
podcastEpisode.chapters[podcastEpisode.chapters.length - 1].end = startTime
}
podcastEpisode.chapters.push(chapter)
chaptersToPush.push(chapter)
Logger.debug('Added chapter', chapter)
}
if (podcastEpisode.chapters.length > 0) {
podcastEpisode.chapters[podcastEpisode.chapters.length - 1].end = podcastEpisode.audioFile.duration
if (errorMessage == null) {
if (podcastEpisode.chapters.length > 0) {
podcastEpisode.chapters[podcastEpisode.chapters.length - 1].end = podcastEpisode.audioFile.duration
}
podcastEpisode.chapters.push(...chaptersToPush)
Logger.debug(`Successfully gnerated ${podcastEpisode.chapters.length} chapters`)
} else {
logger.error(`Unable generate chapters from podcast description, error '${errorMessage}`)
}
Logger.debug('Chapters', podcastEpisode.chapters)
}
return this.create(podcastEpisode)