another.im-ios/ConversationsClassic/AppCore/Reducers/ConversationReducer.swift

extension ConversationState {
    static func reducer(state: inout ConversationState, action: ConversationAction) {
        switch action {
        case .makeConversationActive(let chat):
            state.currentChat = chat

        case .messageForCurrentConversationReceived(let message):
            state.currentMessages.append(message)

        default:
            break
        }
    }
}