110 lines
4.6 KiB
Swift
110 lines
4.6 KiB
Swift
//
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// MPPositive_LoadMusicModel.swift
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// MusicPlayer
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//
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// Created by Mr.Zhou on 2024/4/25.
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//
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import UIKit
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///b面音乐数据管理load
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class MPPositive_BrowseLoadViewModel: NSObject {
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static let shared = MPPositive_BrowseLoadViewModel()
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///预览模块数据组(通过网络请求刷新)
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var browseModuleLists:[MPPositive_BrowseModuleListViewModel] = []
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override init() {
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super.init()
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//当网络请求工具触发browse请求闭包时
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MP_NetWorkManager.shared.browseRequestStateBlock = {
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[weak self] (lists,isCompleted) in
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guard let self = self else {return}
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DispatchQueue.main.async {
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[weak self] in
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guard let self = self else {return}
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//配置预览模块数据
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browseModuleLists.append(contentsOf: lists)
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//移除为空的数据
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browseModuleLists = browseModuleLists.filter{($0.items.count != 0)}
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//通知首页刷新UI
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NotificationCenter.notificationKey.post(notificationName: .positive_browses_reload)
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}
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if isCompleted == true {
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//将视频移动到最后
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.2, execute: {
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[weak self] in
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guard let self = self else {
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return
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}
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// 查找目标元素的索引
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if let index = browseModuleLists.firstIndex(where: {$0.items.first?.browseItem.pageType == "MUSIC_VIDEO_TYPE_OMV"}) {
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// 移除目标元素
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let removedElement = browseModuleLists.remove(at: index)
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// 将目标元素添加到数组的最后
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browseModuleLists.append(removedElement)
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}
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NotificationCenter.notificationKey.post(notificationName: .positive_browses_reload)
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})
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//加载完毕后
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MP_AnalyticsManager.shared.home_b_module_showsucces_actionAction()
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//将加载完毕的数据移入缓存
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cacheResponseData(browseModuleLists)
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}
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}
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//当网络请求工具触发error闭包时
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MP_NetWorkManager.shared.browseRequestErrorBlock = {
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[weak self] in
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guard let self = self else {return}
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//当前因为某原因导致网络请求数据失败，现在从缓存中获取数据
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guard let array = chachedData() else {
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//并没有缓存数据
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NotificationCenter.notificationKey.post(notificationName: .netWork_error_deal)
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return
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}
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//有缓存数据
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browseModuleLists = array
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//通知首页刷新UI
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NotificationCenter.notificationKey.post(notificationName: .positive_browses_reload)
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}
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}
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///刷新预览数据
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func reloadBrowseLists() {
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//清空预览模块数据
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browseModuleLists.removeAll()
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//调用网络请求工具的预览请求
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MP_NetWorkManager.shared.requestBrowseDatas()
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}
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///缓存预览数据
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private func cacheResponseData(_ array: [MPPositive_BrowseModuleListViewModel]) {
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guard browseModuleLists.count != 0 else {
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print("Home Browse数据未加载，无法缓存")
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return
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}
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//将数据转为jsonData
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do{
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let jsonData = try JSONEncoder().encode(array)
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//使用UserDefaults存入缓存数据
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UserDefaults.standard.set(jsonData, forKey: "HomeBrowse")
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print("已经将Home Browse数据缓存")
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}catch{
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//转为jsonData失败
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print("Home Browse数据转为Data失败，失败原因\(error)")
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}
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}
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//读取预览数据
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private func chachedData() -> [MPPositive_BrowseModuleListViewModel]? {
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guard let cacheData = UserDefaults.standard.data(forKey: "HomeBrowse") else {
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print("获取Home Browse缓存数据失败")
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return nil
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}
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//将cacheData转为[MPPositive_BrowseModuleListViewModel]
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do {
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let array:[MPPositive_BrowseModuleListViewModel] = try JSONDecoder().decode([MPPositive_BrowseModuleListViewModel].self, from: cacheData)
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print("已经将Home Browse缓存数据取出")
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return array
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} catch {
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//转为jsonData失败
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print("获取Home Browse缓存数据失败，失败原因\(error)")
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return nil
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}
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}
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}
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