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

import SwiftUI

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

        case .messagesUpdated(let messages):
            state.currentMessages = messages

        case .setReplyText(let text):
            if text.isEmpty {
                state.replyText = ""
            } else {
                state.replyText = text.makeReply
            }

        case .showAttachmentPicker(let flag):
            state.attachmentPickerVisible = flag

        default:
            break
        }
    }
}