将 otg_swift OTG 引擎迁入 Core/CameraOTG，并接入旅拍有线传图与历史导入。
恢复 USB 相机连接、边拍边传、三品牌驱动与 SwiftUI 历史导入页，通过适配层对接现有本地上传与 OSS 管道。 Co-authored-by: Cursor <cursoragent@cursor.com>
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import Foundation
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import Combine
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/// 按日分组的相机照片区块。
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struct CameraPhotoSection: Equatable, Identifiable {
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var id: String { dayKey }
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let dayKey: String
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let title: String
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let photos: [CameraObject]
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}
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/// 相机历史导入页状态机。
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enum CameraImportState: Equatable {
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case idle
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case loading
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case loaded(sections: [CameraPhotoSection])
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case importing(current: Int, total: Int)
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case finished(importedCount: Int)
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case failed(message: String)
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}
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/// 相机 SD 卡历史照片多选导入 ViewModel。
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@MainActor
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final class CameraHistoryImportViewModel: ObservableObject {
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@Published private(set) var state: CameraImportState = .idle
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@Published private(set) var selectedPhotoIDs: Set<String> = []
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@Published private(set) var shouldShowSonyMTPHelp = false
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@Published private(set) var sections: [CameraPhotoSection] = []
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let albumId: Int
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let accountKey: String
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private weak var driver: (any CameraDriver)?
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private let photoSink: OTGPhotoSink
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private let onImported: () -> Void
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private var allPhotos: [CameraObject] = []
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private var existingAlbumPhotoIDs: Set<String> = []
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private var thumbnailCache: [String: Data] = [:]
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/// 初始化历史导入 ViewModel。
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init(
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albumId: Int,
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accountKey: String,
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driver: any CameraDriver,
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photoSink: OTGPhotoSink,
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onImported: @escaping () -> Void
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) {
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self.albumId = albumId
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self.accountKey = accountKey
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self.driver = driver
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self.photoSink = photoSink
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self.onImported = onImported
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}
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/// 通过 Driver 拉取相机内照片并按日分组。
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func loadPhotos() {
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guard let driver else {
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state = .failed(message: "相机未连接")
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return
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}
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state = .loading
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Task {
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do {
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existingAlbumPhotoIDs = await photoSink.existingCameraObjectIDs()
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let objects = try await driver.listObjects()
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allPhotos = objects
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let sections = Self.groupByDay(objects)
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if sections.isEmpty {
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self.sections = []
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state = .failed(message: "相机中没有可导入的照片")
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} else {
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self.sections = sections
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state = .loaded(sections: sections)
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}
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updateSonyMTPHelpVisibility()
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} catch {
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state = .failed(message: error.localizedDescription)
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updateSonyMTPHelpVisibility()
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}
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}
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}
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/// 判断照片是否已在当前相册。
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func isPhotoAlreadyInAlbum(id: String) -> Bool {
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existingAlbumPhotoIDs.contains(id)
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}
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/// 切换单张照片选中状态。
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func togglePhoto(id: String) {
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guard !isPhotoAlreadyInAlbum(id: id) else { return }
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if selectedPhotoIDs.contains(id) {
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selectedPhotoIDs.remove(id)
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} else {
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selectedPhotoIDs.insert(id)
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}
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}
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/// 切换分组全选。
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func toggleSection(_ section: CameraPhotoSection) {
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let importableIDs = Set(section.photos.filter { !isPhotoAlreadyInAlbum(id: $0.id) }.map(\.id))
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guard !importableIDs.isEmpty else { return }
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if importableIDs.isSubset(of: selectedPhotoIDs) {
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selectedPhotoIDs.subtract(importableIDs)
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} else {
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selectedPhotoIDs.formUnion(importableIDs)
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}
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}
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func isPhotoSelected(id: String) -> Bool {
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selectedPhotoIDs.contains(id)
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}
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func isSectionFullySelected(_ section: CameraPhotoSection) -> Bool {
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let ids = section.photos.filter { !isPhotoAlreadyInAlbum(id: $0.id) }.map(\.id)
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return !ids.isEmpty && ids.allSatisfy { selectedPhotoIDs.contains($0) }
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}
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func hasImportablePhotos(in section: CameraPhotoSection) -> Bool {
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section.photos.contains { !isPhotoAlreadyInAlbum(id: $0.id) }
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}
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/// 加载相机缩略图。
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func thumbnailData(for photo: CameraObject, maxPixelSize: Int) async -> Data? {
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if let cached = thumbnailCache[photo.id] {
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return cached
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}
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guard let driver else { return nil }
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guard let data = await driver.requestThumbnailData(for: photo, maxPixelSize: maxPixelSize) else {
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return nil
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}
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thumbnailCache[photo.id] = data
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return data
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}
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/// 顺序下载选中项并写入本地存储。
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func importSelected() {
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guard let driver else { return }
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let selected = allPhotos.filter {
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selectedPhotoIDs.contains($0.id) && !isPhotoAlreadyInAlbum(id: $0.id)
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}
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guard !selected.isEmpty else { return }
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state = .importing(current: 0, total: selected.count)
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Task {
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let tempDir = FileManager.default.temporaryDirectory
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.appendingPathComponent("camera-history-import", isDirectory: true)
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try? FileManager.default.createDirectory(at: tempDir, withIntermediateDirectories: true)
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var imported = 0
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for (index, object) in selected.enumerated() {
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do {
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let downloadedURL = try await driver.downloadObject(object, to: tempDir)
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_ = try await photoSink.saveDownloadedFile(
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at: downloadedURL,
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filename: object.filename,
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capturedAt: object.capturedAt,
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cameraObjectID: object.id
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)
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imported += 1
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state = .importing(current: index + 1, total: selected.count)
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} catch {
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OTGLog.error(.connection, "import failed: \(object.filename) \(error.localizedDescription)")
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}
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}
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selectedPhotoIDs.removeAll()
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state = .finished(importedCount: imported)
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onImported()
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}
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}
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private func updateSonyMTPHelpVisibility() {
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guard driver?.platform == .sony else {
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shouldShowSonyMTPHelp = false
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return
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}
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switch state {
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case .loaded(let sections):
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shouldShowSonyMTPHelp = sections.isEmpty
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case .failed:
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shouldShowSonyMTPHelp = allPhotos.isEmpty
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default:
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shouldShowSonyMTPHelp = false
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}
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}
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private static func groupByDay(_ photos: [CameraObject]) -> [CameraPhotoSection] {
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let calendar = Calendar.current
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let formatter = DateFormatter()
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formatter.locale = Locale(identifier: "zh_CN")
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formatter.dateFormat = "yyyy年M月d日"
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let grouped = Dictionary(grouping: photos) { photo in
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calendar.startOfDay(for: photo.capturedAt)
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}
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return grouped.keys
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.sorted(by: >)
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.map { day in
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let items = grouped[day]!.sorted { $0.capturedAt > $1.capturedAt }
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let dayKey = dayKeyString(for: day, calendar: calendar)
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let title = sectionTitle(for: day, formatter: formatter, calendar: calendar)
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return CameraPhotoSection(dayKey: dayKey, title: title, photos: items)
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}
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}
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private static func dayKeyString(for day: Date, calendar: Calendar) -> String {
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let components = calendar.dateComponents([.year, .month, .day], from: day)
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return String(format: "%04d-%02d-%02d", components.year ?? 0, components.month ?? 0, components.day ?? 0)
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}
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private static func sectionTitle(for day: Date, formatter: DateFormatter, calendar: Calendar) -> String {
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if calendar.isDateInToday(day) { return "今天" }
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if calendar.isDateInYesterday(day) { return "昨天" }
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return formatter.string(from: day)
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}
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}
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