Migrate Message Data structure to hashmap

[AlexanderWangY]

As of now, all incoming messages are stored in an array. However this is inefficient and also hard to play around with (especially with replies and reactions). Therefore we need to migrate to a hashmap Map<Key, Value> where Key is the messageID and the value is the message.

Please also make it in chronological order please so the chat is normal :)

[KOrtizLedezma]

Can I get this one assigned?

[h1divp]

Messages are stored inside of the FlatList inside of components/chat/MessageChannel.tsx
I think all we simply need to do is update this component so that it uses a message timestamp as the key (keyExtractor={msg => msg.time}), and otherwise takes in message data normally (data={messages}). I don't think we would need to reverse the messages array either.
Moreover when it comes to rerendering elements already in the FlatList, say from someone sending a reaction, there's a parameter called extraData that looks convient (https://reactnative.dev/docs/flatlist)

Unless if there is any objection, I would update the FlatList in this way and then mark this issue as completed

[connor-kress]

I would like to have this issue assigned. I got this!