bulk invites

Value

• admins just starting a channel would often like to invite a whole list of people to join
• it's annoying to have to invite everyone with seperate commands
• let's make INVITE accommodate multiple phone numbers so they can do it in a single call to INVITE!

Behavior

multiple invites

GIVEN an admin alice on a channel #foo, a user bob with phone number +12223334444, and a user cassie with phone number +14443332222

• WHEN alice issues INVITE +1(222)333-4444, +1 444 333 2222 (or other variants)
• THEN both bob and cassie receive invites (as specified in #99 (closed) and #137 (closed))

single invite

GIVEN the above

• WHEN alice issues INVITE +1(222)333-4444
• THEN bob receives an invite (as specified in #99 (closed) and #137 (closed))

phone number validation

GIVEN the above

• WHEN alice issues INVITE foo, +1(222)333-4444, INVITE foo, +1(222)333-4444, INVITE +1(222)333-4444 +1(444)333 2222 or INVITE foo
• THEN alice receives an error message and nobody is invited

deduplication

GIVEN the above

• WHEN alice issues INVITE foo, +1(222)333-4444,+12223334444
• THEN bob receives a single invite (and alice is notified of one invite being sent)