Refactor presence implementation and re-enable skipped presence tests (umbrella issue).

[maratal]

Also, I would love someone to go through the current presence implementation and check if it's compatible with spec https://sdk.ably.com/builds/ably/specification/main/features/#RTP1. You can refer to https://github.com/ably/ably-go/blob/14cd5a206e18571f1012f992397e1092c535919e/ably/realtime_presence.go file for more refined implementation in accordance with spec.

Originally posted by sacOO7 in https://github.com/ably/ably-cocoa/pull/1714#discussion_r1423840044

Umbrella issue for:

• [x] https://github.com/ably/ably-cocoa/issues/1875
• [x] https://github.com/ably/ably-cocoa/issues/1876
• [x] https://github.com/ably/ably-cocoa/issues/1890
• [ ] https://github.com/ably/ably-cocoa/issues/1889

┆Issue is synchronized with this Jira Task by Unito

[sync-by-unito[bot]]

➤ Automation for Jira commented:

The link to the corresponding Jira issue is https://ably.atlassian.net/browse/SDK-4009

[sacOO7]

As a part of refactor, we also need to move presence code from channel to separate presence file