440 lines
14 KiB
Swift
440 lines
14 KiB
Swift
//
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// WiredCameraTransferViewModel.swift
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// suixinkan
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//
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import Foundation
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/// 有线相机传输页 ViewModel，编排 ImageCaptureCore 连接、照片导入、本地缓存与上传登记。
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@MainActor
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final class WiredCameraTransferViewModel {
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let albumId: Int
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let albumTitle: String
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let headerPhone: String
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let scenicSpotLabel: String?
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private(set) var connectionState: ConnectionState = .idle {
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didSet { notifyStateChanged() }
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}
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private(set) var photos: [TravelAlbumOTGPhotoItem] = [] {
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didSet { notifyStateChanged() }
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}
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private(set) var selectedTab: TravelAlbumOTGTransferTab = .all {
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didSet { notifyStateChanged() }
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}
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private(set) var selectedPhotoIds: Set<String> = [] {
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didSet { notifyStateChanged() }
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}
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private(set) var selectUploadMode = false {
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didSet { notifyStateChanged() }
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}
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private(set) var sonyMTPHint: String?
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private(set) var isContentCatalogReady = false
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let retouchOption = "不修图"
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private(set) var photoFormatOption: TravelAlbumOTGPhotoFormatOption = .jpg
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private(set) var transferModeOption = "边拍边传"
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var onStateChange: (() -> Void)?
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var onShowMessage: ((String) -> Void)?
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var onLiveShotSaved: ((String) -> Void)?
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private let connectionManager: any WiredCameraConnectionManaging
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private let storage: TravelAlbumOTGPhotoStore
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private let repository: TravelAlbumOTGPhotoRepository
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private let uploader: any TravelAlbumOTGUploading
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private let appStore: AppStore
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private var currentDriver: CameraDriver?
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private var persistedRecordsById: [String: TravelAlbumOTGPhotoRecord] = [:]
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private var deletedPhotoIds: Set<String> = []
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private var isUploading = false
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@MainActor
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init(
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albumId: Int,
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albumTitle: String,
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headerPhone: String,
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scenicSpotLabel: String? = nil,
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connectionManager: (any WiredCameraConnectionManaging)? = nil,
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storage: TravelAlbumOTGPhotoStore = TravelAlbumOTGPhotoStore(),
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uploader: (any TravelAlbumOTGUploading)? = nil,
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appStore: AppStore = .shared
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) {
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self.albumId = albumId
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self.albumTitle = albumTitle.isEmpty ? "有线传输" : albumTitle
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self.headerPhone = headerPhone
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self.scenicSpotLabel = scenicSpotLabel
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self.connectionManager = connectionManager ?? ConnectionManager.shared
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self.storage = storage
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self.repository = TravelAlbumOTGPhotoRepository(storage: storage)
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self.uploader = uploader ?? TravelAlbumOTGUploader()
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self.appStore = appStore
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}
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/// 相机状态文案。
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var cameraStatusText: String {
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switch connectionState {
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case .idle, .disconnected:
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return "未连接 USB"
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case .searching:
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return "正在搜索"
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case .connecting:
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return "正在连接"
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case .connected:
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return "已连接"
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case .failed:
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return "连接失败"
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}
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}
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/// 操作按钮文案。
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var actionButtonText: String {
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switch connectionState {
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case .idle, .disconnected, .failed:
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return "重新连接"
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case .searching, .connecting:
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return "等待连接"
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case .connected:
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return "刷新"
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}
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}
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/// 设备名称。
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var deviceModelName: String {
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switch connectionState {
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case .connecting(let name), .connected(_, let name):
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return name
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default:
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return "设备存储"
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}
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}
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/// 当前设备容量占位文案。
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var availableStorageText: String {
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"-- GB 可用"
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}
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/// Tab 统计。
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var tabCounts: [Int] {
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[
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photos.count,
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photos.filter { $0.status == .uploaded }.count,
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photos.filter { $0.status == .failed }.count,
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]
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}
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/// 过滤后的照片列表。
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func filteredPhotos() -> [TravelAlbumOTGPhotoItem] {
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switch selectedTab {
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case .all:
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return photos
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case .uploaded:
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return photos.filter { $0.status == .uploaded }
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case .failed:
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return photos.filter { $0.status == .failed }
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}
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}
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/// 绑定连接管理器并启动发现。
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func start() {
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connectionManager.configureLiveTransfer(albumID: albumId)
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connectionManager.delegate = self
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syncFromConnectionManager()
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loadPersistedPhotos()
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connectionManager.start()
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}
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/// 页面消失时解绑 UI delegate，保留底层设备缓存。
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func stop() {
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connectionManager.unbindDelegate()
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}
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/// 主动断开相机连接。
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func disconnect() {
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connectionManager.disconnect()
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}
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/// 刷新相机文件列表或重新连接。
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func refreshCameraFiles() {
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switch connectionState {
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case .connected:
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loadPersistedPhotos()
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case .idle, .disconnected, .failed:
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connectionManager.start()
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default:
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break
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}
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}
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/// 重新加载当前相册本地 OTG 照片。
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func reloadLocalPhotos() {
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loadPersistedPhotos()
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}
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/// 切换 Tab。
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func selectTab(_ tab: TravelAlbumOTGTransferTab) {
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selectedTab = tab
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selectedPhotoIds = selectedPhotoIds.intersection(Set(filteredPhotos().map(\.id)))
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}
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/// 切换传输模式。
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func selectTransferMode(_ option: String) {
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guard option == "边拍边传" || option == "拍后传输" else { return }
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transferModeOption = option
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}
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/// 切换上传格式。
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func selectPhotoFormat(_ option: TravelAlbumOTGPhotoFormatOption) {
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guard photoFormatOption != option else { return }
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photoFormatOption = option
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applyMergedPhotos()
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}
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/// 批量上传按钮：首次进入选择模式，再次上传选中照片。
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func onBatchUploadButtonClick() {
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if !selectUploadMode {
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selectUploadMode = true
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selectedPhotoIds = []
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return
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}
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if selectedPhotoIds.isEmpty {
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selectUploadMode = false
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return
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}
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uploadSelectedTransferPhotos()
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}
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/// 指定上传：默认上传所有未上传照片。
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func onSpecifyUploadButtonClick() {
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let ids = Set(photos.filter(\.isNotUploaded).map(\.id))
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startUploadByIds(ids, emptyMessage: "暂无未上传的照片")
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}
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/// 创建相机历史照片选择导入页 ViewModel。
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func makeCameraImportViewModel() -> TravelAlbumCameraImportViewModel? {
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guard isContentCatalogReady else {
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showMessage("相机照片目录尚未就绪，请稍候再试")
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return nil
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}
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guard let currentDriver else {
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showMessage("请先连接相机")
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return nil
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}
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if case .connected = connectionState {
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return TravelAlbumCameraImportViewModel(
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albumId: albumId,
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albumTitle: albumTitle,
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driver: currentDriver,
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storage: storage,
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appStore: appStore
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)
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}
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showMessage("请先连接相机")
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return nil
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}
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/// 选择或取消选择照片。
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func toggleTransferPhotoSelection(photoId: String) {
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guard selectUploadMode,
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photos.first(where: { $0.id == photoId })?.canSelectForUpload == true else {
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return
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}
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if selectedPhotoIds.contains(photoId) {
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selectedPhotoIds.remove(photoId)
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} else {
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selectedPhotoIds.insert(photoId)
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}
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}
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/// 上传选中照片。
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func uploadSelectedTransferPhotos() {
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let ids = selectedPhotoIds
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guard !ids.isEmpty else {
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showMessage("请先选择照片")
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return
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}
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selectUploadMode = false
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selectedPhotoIds = []
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startUploadByIds(ids, emptyMessage: "所选照片不可上传")
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}
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/// 重试上传单张照片。
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func retryPhoto(photoId: String) {
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startUploadByIds([photoId], emptyMessage: "本地文件不存在，无法重传")
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}
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/// 删除单张本地照片。
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func deletePhoto(photoId: String) {
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storage.remove(albumId: albumId, photoId: photoId)
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deletedPhotoIds.insert(photoId)
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persistedRecordsById.removeValue(forKey: photoId)
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selectedPhotoIds.remove(photoId)
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applyMergedPhotos()
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showMessage("已删除")
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}
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/// 清空当前相册本地 OTG 缓存。
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func clearLocalAlbumCache() {
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storage.clearAlbum(albumId: albumId)
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persistedRecordsById = [:]
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photos = []
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}
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private func syncFromConnectionManager() {
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currentDriver = connectionManager.currentDriver
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isContentCatalogReady = connectionManager.isContentCatalogReady
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connectionState = connectionManager.state
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}
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private func loadPersistedPhotos() {
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deletedPhotoIds = storage.loadDeletedIds(albumId: albumId)
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let records = storage.load(albumId: albumId)
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persistedRecordsById = Dictionary(uniqueKeysWithValues: records.map { ($0.id, $0) })
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applyMergedPhotos()
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}
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private func applyMergedPhotos() {
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let persistedItems = persistedRecordsById.values
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.filter { !deletedPhotoIds.contains($0.id) }
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.map { $0.toPhotoItem() }
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photos = persistedItems.sorted { $0.capturedAt > $1.capturedAt }
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}
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private func startUploadByIds(_ ids: Set<String>, emptyMessage: String) {
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guard !isUploading else {
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showMessage("正在上传，请稍候")
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return
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}
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let targets = resolveUploadTargets(ids)
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guard !targets.isEmpty else {
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showMessage(emptyMessage)
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return
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}
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isUploading = true
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showMessage("开始上传 \(targets.count) 张照片")
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Task {
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for id in targets {
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await uploadPhoto(id: id)
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}
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isUploading = false
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notifyStateChanged()
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}
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}
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private func resolveUploadTargets(_ ids: Set<String>) -> [String] {
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ids.filter { persistedRecordsById[$0] != nil }
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}
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private func uploadPhoto(id: String) async {
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do {
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let record = try await localRecordForUpload(id: id)
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updateRecord(id: id, status: .uploading, progress: max(record.progress, 1), error: nil)
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let material = try await uploader.upload(
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record: record,
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scenicId: appStore.currentScenicId
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) { [weak self] progress in
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self?.updateRecord(id: id, status: .uploading, progress: progress, error: nil)
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}
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updateRecord(id: id, status: .uploaded, progress: 100, error: nil, remoteUrl: material.fileUrl)
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} catch {
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updateRecord(id: id, status: .failed, progress: 0, error: error.localizedDescription)
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showMessage(error.localizedDescription)
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}
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}
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private func localRecordForUpload(id: String) async throws -> TravelAlbumOTGPhotoRecord {
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if let record = persistedRecordsById[id],
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!record.localPath.isEmpty,
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FileManager.default.fileExists(atPath: record.localPath) {
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return record
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}
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throw TravelAlbumOTGUploadError.localFileMissing
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}
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private func updateRecord(
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id: String,
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status: TravelAlbumOTGUploadStatus,
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progress: Int,
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error: String?,
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remoteUrl: String? = nil
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) {
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var record = persistedRecordsById[id]
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if record == nil, let item = photos.first(where: { $0.id == id }) {
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record = TravelAlbumOTGPhotoRecord(
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id: item.id,
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sourceId: item.sourceId,
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fileName: item.fileName,
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localPath: item.localPath,
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thumbnailPath: item.thumbnailURL?.isFileURL == true ? item.thumbnailURL?.path ?? "" : "",
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capturedAt: item.capturedAt,
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fileSizeBytes: item.fileSizeBytes,
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status: status,
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progress: progress,
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errorMessage: error,
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albumId: albumId,
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userId: appStore.userId,
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remoteUrl: remoteUrl ?? item.remoteUrl
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)
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}
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guard var record else { return }
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record.status = status
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record.progress = min(max(progress, 0), 100)
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record.errorMessage = error
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if let remoteUrl {
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record.remoteUrl = remoteUrl
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}
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record.updatedAt = Int64(Date().timeIntervalSince1970 * 1000)
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persistedRecordsById[id] = record
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storage.upsert(record, albumId: albumId)
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applyMergedPhotos()
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}
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private func notifyStateChanged() {
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if Thread.isMainThread {
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onStateChange?()
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} else {
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DispatchQueue.main.async { [weak self] in self?.onStateChange?() }
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}
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}
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private func showMessage(_ message: String) {
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if Thread.isMainThread {
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onShowMessage?(message)
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} else {
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DispatchQueue.main.async { [weak self] in self?.onShowMessage?(message) }
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}
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}
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}
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extension WiredCameraTransferViewModel: ConnectionManagerDelegate {
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func connectionManager(_ manager: ConnectionManager, didUpdate state: ConnectionState) {
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connectionState = state
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}
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func connectionManager(_ manager: ConnectionManager, didCreate driver: any CameraDriver) {
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currentDriver = driver
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}
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func connectionManager(_ manager: ConnectionManager, contentCatalogDidBecomeReady driver: any CameraDriver) {
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currentDriver = driver
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isContentCatalogReady = true
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notifyStateChanged()
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}
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func connectionManager(_ manager: ConnectionManager, didFail error: any Error) {
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showMessage(error.localizedDescription)
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}
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func connectionManagerDidSuggestReplug(_ manager: ConnectionManager) {
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showMessage("长时间未找到相机，请尝试重新插拔连接线")
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}
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func connectionManager(_ manager: ConnectionManager, didSaveLiveShot filename: String, albumID: Int) {
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guard albumID == albumId else { return }
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loadPersistedPhotos()
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onLiveShotSaved?(filename)
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}
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}
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