Misc chat updates

[gabek]

While in the future I'm sure there will be a major update, I wanted to add an issue for short term things to add.

• Change message IDs from being client generated to server generated. Mentioned again here: Decouple chat from core and add chat rest api #25 (comment)
• Persist the chat. Mentioned here Project restructure #18 (comment)
• @gingervitis suggested disabling chat when a stream is no longer active. A timeout here would make sense, to allow chat after N minutes of a stream being disconnected, but lock it down when we think a "session" has ended.
• Include timestamps with each message

[graywolf336]

Updated the list and added persist chat

[gabek]

Disable chat after stream ends.

With 8878ca1 the web frontend now knows the time the stream disconnected. We can add a grace period so N minutes after a disconnect is when the chat is locked down. What should that value be? 5 minutes comes to mind as a middle ground. Anything longer than that and the streamer probably isn't coming back, but I could see somebody dropping off for a few minutes for whatever reason. Rebooting their computer, changing streaming settings, etc. What do you think?

[gabek]

Persist chat

How far back should we persist?

We were earlier talking about Boltdb, but it might make more sense to use SQLite so we can efficiently query against timestamps and use it more as live storage than just on-disk source of restoring an array of messages.

[gingervitis]

I'll look into implementing checkbox 3 - with tis logic
When status.online has flipped to false; then disable chat after X time.

[gingervitis]

Re: persisting chat - include timestamps with each message.

[gabek]

@graywolf336 Curious about your thoughts on using an ORM like https://github.com/go-gorm/gorm for working with the chat persistence, have you ever used it or anything similar? I've only used the database/sql stuff, but I'm curious if there's any niceties around an ORM or if it's worth it for something simple like this.

[gabek]

Added basic chat persistence.