Add "Trending" - Filter to Blueprints on front page.

[MvBonin]

2nd try :)

I have added the "Trending"-Filter option to the front page in the blueprints section. adds #75
Since I don't have access to the production blueprints data it would be nice, if you could test it @gabriel-dehan and @mattr-.

It's basically this:

Calculate trending score for all blueprints (no time restriction)
Older blueprints can trend again if they get recent engagement

What counts:

• Votes (likes): Recent votes (last 7 days) × 3.0, Total votes × 2.0
• Copies/Downloads: Recent copies (last 7 days) × 1.5, Total copies × 1.0
• Upload Time boost: 7 days = 30% boost, 30 days = 15% boost, older = no boost

Feel free to tweak the multipliers to your liking.

For adding the test I used AI and for the Chinese Translation I used a translation tool, hope it is right.

[MvBonin]

Hey @gabriel-dehan could you please approve the workflows for me to see if i need to fix anything? :)

[gabriel-dehan]

@MvBonin Just did! Sorry for the delay in reviewing, I'll try to do it this week-end, it's hard during the week with the work.

[gabriel-dehan]

Thanks for the PR!

I am worried about the performances and left a few comments.

Additionally I think it would be good to add new indexes to support this feature:

 add_index :votes, [:votable_type, :votable_id, :created_at]
 add_index :blueprint_usage_metrics, [:blueprint_id, :last_used_at]

[MvBonin]

Thanks for all your input!
Indeed this was not very performant but I think with your proposed changes it should be a lot faster.
I didn't have time yet to test with the data from the db dump though.

Also with this data it will be a bit easier to tweak the constants for trending blueprints, feel free to play around with them to your liking!

[MvBonin]

Hey @gabriel-dehan,

I think I changed everything that you requested and just fixed some rubocop errors.
Waiting for the workflows to run but then all should be fine, right?
Github tells me, there is 1 requested change still, but I cannot seem to find it or maybe it was the comment about indexes?

If you still want me to change something, I would love to do it.

[gabriel-dehan]

@MvBonin thanks a lot man! I just need to take some time to test the feature before merging but it looks all good to me!

Requested changes are not specific AFAIK it's about the PR as a whole when I did the first review. Don't worry about it I'll merge it once I am done testing

[gabriel-dehan]

Life being life and holidays being done it's been hard to find time to move forward with anything else than work, but I am approving this PR and will (soonish) test it on staging.

Thanks a lot for that, again.