[Enhancement]: Add episode number and date to file name

[peterpepo]

Describe the feature/enhancement

Adding the episode number and (or - configurable) date to downloaded file name. After downloading (archiving) my favourite podcast, its folder looks like a huge mess inside without indicating date or number of the episode.

I've seen alternative podcast app, where you can configure to prepend episode number and date to downloaded file name. Adding this would be a huge improvement. Optionally renaming all previous files (without redownloading from scratch).

Implementing this would greatly improve organization inside podcast folder, which currently can be only alphabetically ordered, and really makes no sense when accessed from outside of audiobookshelf gui (for example windows explorer, when I play in my mp3 player)

Example of such file names:

<episode_num>_<YYYY-MM-DD>_<Episode_name>.<ext>
004_2024-01-03_Hello.mp3
003_2024-01-01_World.mp3
002_2023-10-17_Lorem.mp3
001_2022-11-15_Ipsum.mp3

My favourite podcast folder currently looks like this:

[kxseven]

I would like to suggest a revision to this enhancement that on the basis that the episode number won't always be known for podcasts unless it is already part of RSS feed data.

Example podcast RSS

Suggested revision:

• Allow the user to configure the podcast filename based on tokens similar to that used in other media management software
• Allow tokens for
  • Episode title (%E)
  • Podcast title (%P)
  • Published date (%D) - raw value from the RSS Feed
  • Published date (%YMD) - simple date in YYYY-MM-DD format that allows for normal file sorting to work as expected
• Set the default value for this configuration to "%E" to prevent breaking existing deployments