1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889 |
- //
- // MessageTableViewCellViewModel.swift
- // Bark
- //
- // Created by huangfeng on 2020/11/21.
- // Copyright © 2020 Fin. All rights reserved.
- //
- import Differentiator
- import Foundation
- import RxCocoa
- import RxDataSources
- enum MessageListCellDateStyle {
- /// 相对时间,例如 1分钟前、1小时前
- case relative
- /// 精确时间,例如 2024-01-01 12:00
- case exact
- }
- class MessageTableViewCellViewModel: ViewModel {
- let message: Message
-
- let title: BehaviorRelay<String>
- let body: BehaviorRelay<String>
- let url: BehaviorRelay<String>
-
- let date = BehaviorRelay<String>(value: "")
- var dateStyle = BehaviorRelay<MessageListCellDateStyle>(value: .relative)
-
- init(message: Message) {
- self.message = message
-
- self.title = BehaviorRelay<String>(value: message.title ?? "")
- self.body = BehaviorRelay<String>(value: message.body ?? "")
- self.url = BehaviorRelay<String>(value: message.url ?? "")
- super.init()
-
- dateStyle.map { style in
- switch style {
- case .relative:
- return self.message.createDate?.agoFormatString() ?? ""
- case .exact:
- return self.message.createDate?.formatString(format: "yyyy-MM-dd HH:mm") ?? ""
- }
- }
- .bind(to: date)
- .disposed(by: rx.disposeBag)
- }
- }
- struct MessageSection {
- var header: String
- var messages: [MessageTableViewCellViewModel]
- }
- extension MessageSection: AnimatableSectionModelType {
- typealias Item = MessageTableViewCellViewModel
- typealias Identity = String
-
- var items: [MessageTableViewCellViewModel] {
- return self.messages
- }
-
- init(original: MessageSection, items: [MessageTableViewCellViewModel]) {
- self = original
- self.messages = items
- }
-
- var identity: String {
- return header
- }
- }
- extension MessageTableViewCellViewModel: IdentifiableType {
- typealias Identity = String
-
- var identity: String {
- return "\(self.message.id)"
- }
-
- override func isEqual(_ object: Any?) -> Bool {
- if let obj = object as? MessageTableViewCellViewModel {
- return self.identity == obj.identity
- }
- return super.isEqual(object)
- }
- }
|