Detect delay causes and improve chat loading time

[tomastiminskas]

When entering a chat from chats list, the chat messages take a few seconds to load and show even when it's a new chat with just a few messages. We are showing a shimmering view while loading them and scrolling to bottom, then hiding it when it's ready

Base branch: develop: project needs to be compiled and run from develop branch where the latest changes are pushed.

Context

• On screenInit() of ChatViewModel we are calling the right getAllMessages method of messageRepository to get the chat messages/thread messages. We are fetching a small amount first (100), then loading more.
• On getAllMessagesToShowByChatId of the SphinxRepository we are querying the db, wrapping the messageDbo object into Message objects and linking reactions, replies, purchase msgs, etc to each of them.
• On getMessageHolderViewStateList of the ChatViewModel we are processing the list of Messages coming from repository and returning a list of MessageHolderViewState that will be finally set on messageHolderViewStateFlow which is collected on MessageListAdapter
• MessageHolderViewState class contains lazy vars for each Message row section like statusHeader, imageAttachment, etc

Requirements

• Debug, understand and detect which part of this process takes more time to process causing the delay on chat view load.
• Implement change on logic or UI to improve significantly the loading time of the chat
• If solutions are complex and require any architecture changes that must be handled in a separated ticket, provide details on how this would improve the loading time and general directions on how to implement them

Acceptance Criteria

• Detect the causes or performance issues producing the chat view loading delay
• Implement improvements to reduce it significantly or provide detailed feedback on how to accomplish that

[Ekep-Obasi]

@tomastiminskas, I'd love to work on this. Could you please assign me?

[tomastiminskas]

@Ekep-Obasi give me some time please since I have a hunter who already asked for this ticket. So I need to check with him first, otherwise I will assign to you

[Ekep-Obasi]

@Ekep-Obasi give me some time please since I have a hunter who already asked for this ticket. So I need to check with him first, otherwise I will assign to you

@tomastiminskas, thank you. I'll be waiting

[tomastiminskas]

@Ekep-Obasi you can give it a try!