Feat/firebase data

[danpecher]

• Updated firebase credentials to our test DB: https://console.firebase.google.com/project/chatappios-1225b
• Added FirebaseFirestoreSwift pod which is part of firebase-ios-sdk (albeit undocumented 😞 - but it does simplify decoding, including documentID property and timestamps)
• Added decoding of models' properties
• Added a button to conversations list to create some test conversations

Comments

• I'm not sure if the message_type property is necessary since the decoding process decides the message type based on presence of either "text" field or "imageUrl" field.
• In conversations/members I used map of [id: [name: "..."]] instead of just array of IDs because we need the names in the conversation list. We will need to think about updating those names whenever any user's name updates. I wasn't sure about this but it seems denormalization is pretty common with Firebase databases ¯_(ツ)_/¯ https://www.youtube.com/watch?v=vKqXSZLLnHA (Sorry if this is something obvious, I haven't worked with Firebase that much..)

[danpecher]

@schwarja I added some new commits.

I added a new method load to the core to be able to load all users before the conversations are loaded. I think in the future it could be used also for some other loading tasks that might be needed.

I used notifications to call the temporary createTestConversation method for simplicity, because if I wanted to call Firebase methods from controller or appdelegate I would have to mess around with dependencies to be able to import them.

[danpecher]

@schwarja I added commits and some comments 🙂

[danpecher]

@schwarja ok I managed to do the load without exposing through the core by adding onLoadListeners to ChatNetworkingFirebase so that even if listenToConversations is called before the init is done, the code will wait until loading is complete. I hope this solution is not too ugly 😬 this specific code change is here: https://github.com/strvcom/ios-research-chat-component-imperative/pull/2/commits/f0846b2fa0653c4dc59a5a3aefac89a52036a003

[danpecher]

@schwarja done