Compilations feature

[broquemonsieur]

Addresses #3857

To try this out, pull the fork/branch

1. Sign In/Register
2. Click on Settings, enable "Autoplay" and "Save preferences"
3. Go to the feeds menu
4. Select "Compilations", click "Create Compilation" and title it
5. "Add videos", type a search term and add 0, 1, or many videos
6. Go back to the feeds menu
7. Select "Compilations" and click on the most recently created compilation followed by "Edit"
8. For each compilation_video, adjust the starting timestamp and the ending timestamp, either or none (using legal or illegal arguments)
9. Click "Save"
10. Rearrange the videos using the arrows on the left
11. "Play"

[unixfox]

Make sure to run crystal tool format.

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Mmh this requires database changes, I guess this won't be able to get merged anytime soon.

Explained here: #2254 (comment)

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Note: this includes typo fixes and "utils" minor changes.

[unixfox]

Can you revert the changes where you remove the newline at the end of a file? It's unnecessary thank you.

I see that on many files.

[unixfox]

Additional questions:

• Does this work without JavaScript?
• Can you add screenshots on the first comment of your PR?
• Does this work on old browsers like at least internet explorer 11?

[broquemonsieur]

Additional questions:

* Does this work without JavaScript?

* Can you add screenshots on the first comment of your PR?

* Does this work on old browsers like at least internet explorer 11?

Regarding JavaScript, I'm unsure - but will address this right after IE 11
Regarding Internet Explorer 11, I'm unsure - I'm currently running a Windows container via VMWare Fusion on my macOS. It seems though that Docker doesn't support this scenario. Are addressing these questions necessary for the PR?

[broquemonsieur]

I finished testing and determined JavaScript-less and IE 11 functionality are out-of-scope for this PR

Explanation: My feature is contingent on the ability to start a video after timestamp 0:00. This is done by setting the t URL Query Parameter as seen currently in production when one switches invidious instances. Rerunning this very workflow on a production instance in a JavaScript-less environment or IE 11 starts the video at 0:00 which means this issue should've already been solved prior to my PR if invidious were truly accessible.

(All good and no disrespect meant! I believe the fact that invidious already allow basic functionality on JavaScript-less environments or IE 11 is more than apt for the accessibility cause - glad the maintainers care!)

[ChunkyProgrammer]

I'm curious, is there a reason why compilations are separate from playlists? I feel like this feature might be easier to maintain if it updated playlists to allow specifying start and end times for playlist videos instead of creating new tables and views for compilations.

[unixfox]

True and maybe this way it would have probably necessitate no schema change in the database (no migrations to do probably).

[broquemonsieur]

@ChunkyProgrammer Why don't you visit 000136.xyz (@unixfox add this to public invidious list - it's been a month-thanks!) and see for yourself? If you are sold on the idea, fork my fork and simplify it yourself :)
I have taken this concept as far as I intended, for my personal use as and you can see, I'm having a blast

[broquemonsieur]

True and maybe this way it would have probably necessitate no schema change in the database (no migrations to do probably).

It would also allow you to consider #4359