[V2] Consider total bandwidth limitations

[samsonsin]

Hello!

I love this project, without it using ARR suite apps would be much more cumbersome. That said, there is a glaring fault in the logic used.

Most people have hard caps on the speeds they have available, and when downloading many files / season packs for shows, you very easily run into bandwidth limits. Naturally, some torrents will then not get any bandwidth and may be flagged as "slow download". You can easily circumvent this issue by allowing slow downloads, but this is naturally subpar.

I suggest the implementation of a parameter for what the max cap should be. Then, if total download bandwidth is say within 10-20% (or maybe a some expression dependent on total torrents and slow download threshold) of this number, the slow download condition is ignored.

This would ensure healthy torrents aren't mistakenly marked as failed when they were merely waiting for their turn.

I do want to note that I do not know if decluttarr takes into account the torrent queue implemented in QBittorrent. If it does, then while implementing this would still be a good idea, it wouldnt be as necessary since qbittorrent can then ensure only a few torrents are active at a time.

[samsonsin]

Had a brief look at torrent queuing. It would likely fix this issue if I were to limit active downloads. The problem is that you cannot do this in reference to download speeds, and even if you are conservative, turning it on enables queueing which normally prioritises torrents over others. This can likely exacerbate the issue.

I believe the suggestion of disabling the detection of slow torrents while close to a total bandwidth usage is optimal. For sonarr requests I including whole season, which can sometimes end up with 20+ separate torrents, you are essentially guaranteed to have multiple torrents removed where such action is unneeded

Additionally, stalling behaviour would likely need to be modified as well.

[ManiMatter]

hi @samsonsin - I borrowed the idea you shared in your code, and ported it into the V2.
I just pushed the version.

Keen to hear your thoughts