Mattermost-server: [Help Wanted] [PLT-4341] Do Not Disturb and "/dnd" command

[esethna]

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Notes: Jira ticket

Command

/dnd [off]
Do not disturb disables desktop and mobile push notifications.

1. /dnd
   
   
   
   • Posts System message: “Do Not Disturb is enabled. You will not receive desktop or mobile push notifications until Do Not Disturb is turned off.”
   
   
   • If DND is already on, using /dnd again will turn it off and post the system message: "Do Not Disturb is disabled."
   
   
2. /dnd off
   
   
   
   • Turns off DND and sets the status to online
   
   
   • System message: "Do Not Disturb is disabled."
   
   
3. “/online”, “/away”, “/offline”
   
   
   
   • Disables DND and sets the status accordingly
   
   
   • Post the corresponding system message.
   
   

UI
Enable via Status dropdown:

Update Status Icons:
New Away

New DND

• SVG Away Icons:
  
  
  
  • Channel sidebar: https://mattermost.atlassian.net/secure/attachment/36752/awayIcon.svg
  
  
  • Status indicator: https://mattermost.atlassian.net/secure/attachment/36753/awayIconCenter.svg
  
  
• SVG DND Icons: Use the current away icon (horizontal line).

Functionality
When Do Not Disturb mode is on,

1. Desktop and push notifications are not sent.
2. Unread channels in the left-hand-side still bolded and show mention jewels as normal.

When Do Not Disturb mode is off,

1. Desktop and push notifications are sent as normal (per Account Preferences > Notifications and channel notification preferences)

[cpanato]

I will work on this @esethna

[esethna]

Sweet, thanks @cpanato!