added ios module
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184
ios/OralTrainer/Views/CatalogView.swift
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184
ios/OralTrainer/Views/CatalogView.swift
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@@ -0,0 +1,184 @@
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import SwiftUI
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@MainActor
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final class CatalogViewModel: ObservableObject {
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@Published private(set) var videos: [TrainingVideoSummary] = []
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@Published private(set) var statusText = "正在同步"
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@Published private(set) var activeVideoHash: String?
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weak var controller: PlayerController?
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private var baseURL = AppConfig.serverBaseURL
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private var hasLoaded = false
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func loadIfNeeded() async {
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guard !hasLoaded else {
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return
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}
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hasLoaded = true
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await load()
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}
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func load() async {
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statusText = "正在同步"
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do {
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let (fetched, base) = try await VideoCatalogAPI.fetch()
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baseURL = base
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videos = fetched
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statusText = fetched.isEmpty ? "暂无云端课程" : "\(fetched.count) 个云端课程"
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} catch {
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statusText = "云端暂不可用：\(error.localizedDescription)"
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}
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}
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/// 与安卓端 loadRemoteVideo() 一致：先以无句边界装载，再拉取句边界后重新装载。
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func select(_ video: TrainingVideoSummary) {
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guard let controller = controller else {
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return
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}
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activeVideoHash = video.videoHash
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guard let url = video.resolvedStreamURL(baseURL: baseURL) else {
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controller.boundaryState = .failed(message: "无法解析视频流地址")
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return
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}
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let loadingItem = TrainingMediaItem(id: video.videoHash, title: video.title, url: url)
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controller.load(loadingItem)
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controller.boundaryState = .loading(isLocal: false)
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controller.showTransientMessage("正在加载云端课程...")
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Task {
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do {
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let document = try await SentenceBoundaryAPI.fetch(videoHash: video.videoHash)
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guard activeVideoHash == video.videoHash else {
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return
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}
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let item = TrainingMediaItem(
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id: video.videoHash,
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title: video.title,
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url: url,
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sentences: document.sentences
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)
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controller.load(item)
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controller.boundaryState = .loaded(count: document.sentences.count)
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controller.showTransientMessage("课程已就绪：\(document.sentences.count) 句")
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} catch {
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guard activeVideoHash == video.videoHash else {
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return
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}
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controller.boundaryState = .failed(message: error.localizedDescription)
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controller.showTransientMessage("句子边界加载失败：\(error.localizedDescription)")
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}
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}
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}
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/// 与安卓端 onActivityResult 本地视频流程一致：先装载再按 SHA-256 匹配句边界。
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func importVideo(at url: URL) async {
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guard let controller = controller else {
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return
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}
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let didAccess = url.startAccessingSecurityScopedResource()
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defer {
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if didAccess {
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url.stopAccessingSecurityScopedResource()
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}
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}
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controller.showTransientMessage("正在获取本地视频的句子边界...")
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do {
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let fileName = url.lastPathComponent
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let cacheDir = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)[0]
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let tempURL = cacheDir.appendingPathComponent("import-\(UUID().uuidString)-\(fileName)")
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let hash = try ImitationAssessor.copyAndHash(from: url, to: tempURL)
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let item = TrainingMediaItem(
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id: hash,
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title: fileName,
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url: tempURL,
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isLocalFile: true
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)
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activeVideoHash = hash
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controller.load(item)
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controller.boundaryState = .loading(isLocal: true)
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do {
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let document = try await SentenceBoundaryAPI.fetch(videoHash: hash)
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guard activeVideoHash == hash else {
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return
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}
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let loadedItem = TrainingMediaItem(
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id: hash,
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title: fileName,
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url: tempURL,
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sentences: document.sentences,
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isLocalFile: true
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)
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controller.load(loadedItem)
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controller.boundaryState = .loaded(count: document.sentences.count)
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controller.showTransientMessage("句子边界已加载：\(document.sentences.count) 句")
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} catch {
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guard activeVideoHash == hash else {
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return
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}
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controller.boundaryState = .failed(message: error.localizedDescription)
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controller.showTransientMessage("句子边界获取失败，使用默认快退/快进：\(error.localizedDescription)")
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}
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} catch {
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controller.showTransientMessage("本地视频导入失败：\(error.localizedDescription)")
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}
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}
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}
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struct CatalogView: View {
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@ObservedObject var vm: CatalogViewModel
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var body: some View {
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VStack(alignment: .leading, spacing: 8) {
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HStack(spacing: 0) {
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Text("课程")
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.font(.system(size: 16, weight: .bold))
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.foregroundColor(.white)
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Spacer()
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Text(vm.statusText)
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.font(.system(size: 13))
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.foregroundColor(Theme.textMuted)
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.lineLimit(2)
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.multilineTextAlignment(.trailing)
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}
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ScrollView(.horizontal, showsIndicators: false) {
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HStack(spacing: 10) {
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ForEach(vm.videos) { video in
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catalogCard(video)
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}
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}
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.padding(.vertical, 2)
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}
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}
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.padding(.horizontal, 16)
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.task {
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await vm.loadIfNeeded()
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}
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}
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private func catalogCard(_ video: TrainingVideoSummary) -> some View {
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let selected = vm.activeVideoHash == video.videoHash
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return Button {
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vm.select(video)
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} label: {
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VStack(alignment: .leading, spacing: 6) {
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Text(video.title)
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.font(.system(size: 15, weight: .bold))
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.foregroundColor(selected ? Theme.textDark : .white)
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.lineLimit(2)
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.multilineTextAlignment(.leading)
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Text("\(video.sentenceCount) 句 · \(Theme.formatTime(video.durationMs ?? -1))")
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.font(.system(size: 12))
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.foregroundColor(selected ? Theme.accentDeep : Theme.textMuted)
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}
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.padding(.horizontal, 14)
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.frame(width: 218, height: 84, alignment: .leading)
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.background(selected ? Theme.selected : Theme.surface)
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.overlay(
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RoundedRectangle(cornerRadius: 8)
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.stroke(selected ? Theme.accent : Theme.border, lineWidth: 1)
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)
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.clipShape(RoundedRectangle(cornerRadius: 8))
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}
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.buttonStyle(.plain)
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}
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}
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