Sync OTG transfer photo list UI

suixinkan/Features/TravelAlbum/ViewModels/WiredCameraTransferViewModel.swift

@@ -17,10 +17,16 @@ final class WiredCameraTransferViewModel {
         didSet { notifyStateChanged() }
     }
     private(set) var photos: [TravelAlbumOTGPhotoItem] = [] {
-        didSet { notifyStateChanged() }
+        didSet {
+            normalizeSelectedTimeSlot()
+            notifyStateChanged()
+        }
     }
     private(set) var selectedTab: TravelAlbumOTGTransferTab = .all {
-        didSet { notifyStateChanged() }
+        didSet {
+            normalizeSelectedTimeSlot()
+            notifyStateChanged()
+        }
     }
     private(set) var selectedPhotoIds: Set<String> = [] {
         didSet { notifyStateChanged() }
@@ -28,6 +34,12 @@ final class WiredCameraTransferViewModel {
     private(set) var selectUploadMode = false {
         didSet { notifyStateChanged() }
     }
+    private(set) var sidebarExpanded = true {
+        didSet { notifyStateChanged() }
+    }
+    private(set) var selectedTimeSlotId: String? {
+        didSet { notifyStateChanged() }
+    }
     private(set) var sonyMTPHint: String?
     private(set) var isContentCatalogReady = false
 
@@ -135,6 +147,32 @@ final class WiredCameraTransferViewModel {
         }
     }
 
+    /// 过滤后照片的半小时时间分段。
+    var photoSections: [TravelAlbumOTGPhotoSection] {
+        filteredPhotos().buildPhotoSections()
+    }
+
+    /// 过滤后照片的左侧时间导航分组。
+    var sidebarGroups: [TravelAlbumOTGDateGroup] {
+        filteredPhotos().buildSidebarGroups()
+    }
+
+    /// 当前可见列表中可被选择上传的照片 ID。
+    var selectableVisiblePhotoIds: Set<String> {
+        Set(filteredPhotos().filter(\.canSelectForUpload).map(\.id))
+    }
+
+    /// 当前可见列表中是否已全选可上传照片。
+    var allVisibleSelectablePhotosSelected: Bool {
+        let ids = selectableVisiblePhotoIds
+        return !ids.isEmpty && ids.isSubset(of: selectedPhotoIds)
+    }
+
+    /// 当前可见列表中已选择的可上传照片数量。
+    var selectedVisibleUploadCount: Int {
+        selectedPhotoIds.intersection(selectableVisiblePhotoIds).count
+    }
+
     /// 绑定连接管理器并启动发现。
     func start() {
         connectionManager.configureLiveTransfer(albumID: albumId)
@@ -178,6 +216,17 @@ final class WiredCameraTransferViewModel {
         selectedPhotoIds = selectedPhotoIds.intersection(Set(filteredPhotos().map(\.id)))
     }
 
+    /// 展开或收起左侧时间快速导航。
+    func toggleSidebar() {
+        sidebarExpanded.toggle()
+    }
+
+    /// 选择左侧时间槽，并联动主列表滚动。
+    func selectTimeSlot(id: String) {
+        guard photoSections.contains(where: { $0.slotId == id }) else { return }
+        selectedTimeSlotId = id
+    }
+
     /// 切换传输模式。
     func selectTransferMode(_ option: String) {
         guard option == "边拍边传" || option == "拍后传输" else { return }
@@ -252,6 +301,18 @@ final class WiredCameraTransferViewModel {
         }
     }
 
+    /// 切换当前可见照片的全选状态。
+    func toggleVisibleSelectablePhotos() {
+        guard selectUploadMode else { return }
+        let ids = selectableVisiblePhotoIds
+        guard !ids.isEmpty else { return }
+        if ids.isSubset(of: selectedPhotoIds) {
+            selectedPhotoIds.subtract(ids)
+        } else {
+            selectedPhotoIds.formUnion(ids)
+        }
+    }
+
     /// 上传选中照片。
     func uploadSelectedTransferPhotos() {
         let ids = selectedPhotoIds
@@ -303,6 +364,17 @@ final class WiredCameraTransferViewModel {
         photos = persistedItems.sorted { $0.capturedAt > $1.capturedAt }
     }
 
+    private func normalizeSelectedTimeSlot() {
+        let sections = filteredPhotos().buildPhotoSections()
+        guard let firstSlotId = sections.first?.slotId else {
+            selectedTimeSlotId = nil
+            return
+        }
+        if selectedTimeSlotId == nil || !sections.contains(where: { $0.slotId == selectedTimeSlotId }) {
+            selectedTimeSlotId = firstSlotId
+        }
+    }
+
     private func startUploadByIds(_ ids: Set<String>, emptyMessage: String) {
         guard !isUploading else {
             showMessage("正在上传，请稍候")