Adding extra functionality and refinements to !remind

[scragly]

trafficstars

Possible improvements have been discussed for the reminder command:

• Repeating reminders e.g. !remind "@Admins meeting in 5 minutes" every Sunday at 20:55
• More natural time parsing
• DM reminders
• Allowing reminders in functional channels such as #dev-contribs which currently is disallowed for non-staff.

[sco1]

Adding a couple more enhancements:

• Add reminder ID to the confirmation embed
• Add the target datetime to the confirmation embed (in addition to the currently provided timedelta)

[scragly]

I seem to have forgotten to add also:

• Jump link to original invoke msg in non-repeating reminder msg (not the confirmation msg)

[sco1]

That was added by #466

[scragly]

Oh, very nice.

[sco1]

For scoping this should be split into a few discrete chunks:

Chunk the First (low hanging fruit) #749

• Reminder ID in confirmation embed
• Target datetime in confirmation embed
• Expand whitelist for non-staff

Chunk the Second (requires backend changes)

• Repeating reminders
• DM reminders

Chunk the Third (converter change has broader implications)

• More natural time parsing

[Shivansh-007]

For the more language time parsing feature, can we make use of parsedatetime?

[ChrisLovering]

we already have arrow as a dependency, so maybe we can make use of that?

[wookie184]

The points here other than "Repeating reminders" and "DM reminders" seem to have been completed or have their own tracking issues. I don't think repeating/dm reminders are super important so i'll close this and let anyone create separate issues for them if they have a use case.