682 lines
26 KiB
Swift
682 lines
26 KiB
Swift
import SwiftUI
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import UIKit
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import UniformTypeIdentifiers
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struct RootView: View {
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@StateObject private var auth = AuthManager()
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@StateObject private var controller = PlayerController()
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@StateObject private var catalogVM = CatalogViewModel()
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@StateObject private var historyManager = TrainingHistoryManager()
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@State private var activeModule: Module = .course
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@State private var continuousPlayback = false
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@State private var showChineseSubtitles = false
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@State private var chineseTranslationLoading = false
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@State private var chineseTranslationError = ""
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@State private var chineseTranslationTask: Task<Void, Never>?
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@State private var showImporter = false
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@State private var showFullscreenPlayer = false
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@State private var courses: [Course] = []
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@State private var currentCourse: Course?
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@State private var courseStatusText = "正在同步"
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@State private var isRefreshingCourses = false
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@State private var showCourseGuardToast = false
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@State private var managedResults: [UserResultSummary] = []
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@State private var managedDubShares: [UserDubShareSummary] = []
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@State private var managementStatus = ""
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@State private var managementIsLoading = false
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@State private var deletingHistoryID: String?
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enum Module {
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case course
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case train
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case test
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case mine
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}
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var body: some View {
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if auth.isLoggedIn {
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mainContent
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} else {
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AuthView(auth: auth) {
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Task { await loadCourses() }
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}
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}
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}
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private var mainContent: some View {
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ZStack {
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Theme.background.ignoresSafeArea()
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VStack(spacing: 0) {
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header
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moduleTabs
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switch activeModule {
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case .course:
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coursePage
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case .train:
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TrainingView(
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controller: controller,
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catalogVM: catalogVM,
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continuousPlayback: $continuousPlayback,
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showChineseSubtitles: $showChineseSubtitles,
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chineseSubtitlePlaceholder: chineseSubtitlePlaceholder,
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onFullscreen: enterFullscreen
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)
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case .test:
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TestView(
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controller: controller,
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historyManager: historyManager,
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onFullscreen: enterFullscreen
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)
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case .mine:
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minePage
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}
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}
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if showCourseGuardToast {
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VStack {
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Spacer()
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Text("请先选择课程")
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.font(.system(size: 14))
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.foregroundColor(.white)
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.padding(.horizontal, 20)
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.padding(.vertical, 12)
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.background(Theme.overlay)
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.clipShape(RoundedRectangle(cornerRadius: 8))
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Spacer().frame(height: 80)
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}
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}
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}
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.preferredColorScheme(.dark)
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.onAppear {
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catalogVM.controller = controller
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controller.setContinuousPlayback(continuousPlayback)
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if auth.isLoggedIn && courses.isEmpty {
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Task { await loadCourses() }
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}
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}
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.onChange(of: showChineseSubtitles) { enabled in
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if enabled {
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ensureChineseTranslations()
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} else {
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chineseTranslationTask?.cancel()
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chineseTranslationLoading = false
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}
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}
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.onChange(of: controller.currentItem?.id) { _ in
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ensureChineseTranslations()
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}
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.onChange(of: controller.currentItem?.sentences.count) { _ in
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ensureChineseTranslations()
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}
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.onChange(of: activeModule) { module in
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if module == .train {
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controller.setContinuousPlayback(continuousPlayback)
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ensureChineseTranslations()
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} else if module == .test {
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// 与安卓测试页一致：按当前句窗口播放，避免滑进下一句。
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controller.setContinuousPlayback(false)
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} else {
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controller.setContinuousPlayback(true)
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}
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}
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.fileImporter(
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isPresented: $showImporter,
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allowedContentTypes: [.movie],
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allowsMultipleSelection: false
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) { result in
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if case .success(let urls) = result, let url = urls.first {
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Task {
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await catalogVM.importVideo(at: url)
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}
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}
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}
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.onReceive(catalogVM.$activeVideoHash) { videoHash in
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syncCurrentCourse(with: videoHash)
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}
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.fullScreenCover(isPresented: $showFullscreenPlayer) {
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FullscreenPlayerView(
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controller: controller,
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showsLessonTitle: activeModule != .train,
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showChineseSubtitles: showChineseSubtitles,
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chineseSubtitlePlaceholder: chineseSubtitlePlaceholder
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) {
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exitFullscreen()
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}
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.onAppear {
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AppDelegate.lockOrientation(.landscape)
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}
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}
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}
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private var header: some View {
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HStack(spacing: 0) {
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VStack(alignment: .leading, spacing: 2) {
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Text("八哥口语")
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.font(.system(size: 32, weight: .bold))
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.foregroundColor(.white)
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Text(auth.nickname.isEmpty ? "外语跟读训练神器" : "你好，\(auth.nickname)")
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.font(.system(size: 15))
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.foregroundColor(Theme.textMuted)
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}
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Spacer()
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if activeModule == .train {
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headerButton("导入") {
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showImporter = true
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}
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}
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headerButton("刷新") {
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Task { await loadCourses() }
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}
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headerButton("退出") {
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auth.logout()
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currentCourse = nil
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courses = []
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activeModule = .course
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}
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}
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.padding(.horizontal, 18)
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.padding(.top, 8)
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.padding(.bottom, 10)
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}
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private func headerButton(_ label: String, action: @escaping () -> Void) -> some View {
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Button(action: action) {
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Text(label)
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.font(.system(size: 14, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 14)
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.frame(height: 40)
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.background(Theme.buttonBlue)
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.clipShape(RoundedRectangle(cornerRadius: 8))
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}
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.buttonStyle(.plain)
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.padding(.leading, 8)
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}
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private var moduleTabs: some View {
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HStack(spacing: 0) {
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moduleTab("课程", module: .course)
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moduleTab("训练", module: .train)
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moduleTab("测试", module: .test)
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moduleTab("我的", module: .mine)
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}
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.padding(.horizontal, 16)
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.padding(.bottom, 8)
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}
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private func moduleTab(_ label: String, module: Module) -> some View {
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Button {
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if module != .course && currentCourse == nil {
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showCourseGuardToast = true
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DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
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showCourseGuardToast = false
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}
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} else {
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activeModule = module
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}
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} label: {
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Text(label)
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.font(.system(size: 15, weight: .bold))
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.foregroundColor(activeModule == module ? .white : Theme.textMuted)
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.frame(maxWidth: .infinity)
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.frame(height: 38)
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.background(activeModule == module ? Theme.buttonBlue : Theme.surface)
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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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// MARK: - Course Page
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private var coursePage: some View {
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ScrollView {
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VStack(alignment: .leading, spacing: 0) {
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Text("课程首页")
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.font(.system(size: 26, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 16)
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HStack(spacing: 10) {
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Text("选择一门课程开始训练")
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.font(.system(size: 13))
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.foregroundColor(Theme.textMuted)
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Spacer()
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Button {
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Task { await loadCourses() }
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} label: {
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Text(isRefreshingCourses ? "刷新中" : "刷新课程")
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.font(.system(size: 13, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 12)
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.frame(height: 32)
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.background(Theme.buttonBlue)
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.clipShape(RoundedRectangle(cornerRadius: 8))
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}
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.buttonStyle(.plain)
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.disabled(isRefreshingCourses)
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.opacity(isRefreshingCourses ? 0.6 : 1)
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.padding(.trailing, 16)
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}
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.padding(.horizontal, 16)
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.padding(.top, 4)
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Text(courseStatusText)
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.font(.system(size: 13))
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.foregroundColor(Theme.textMuted)
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.padding(.horizontal, 16)
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.padding(.top, 8)
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if courses.isEmpty {
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Text("暂无课程")
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.font(.system(size: 14))
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.foregroundColor(Theme.textMuted)
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.padding(.horizontal, 16)
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.padding(.top, 20)
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} else {
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LazyVStack(spacing: 10) {
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ForEach(courses) { course in
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courseCard(course)
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}
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}
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.padding(.horizontal, 16)
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.padding(.top, 8)
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}
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}
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.padding(.top, 12)
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}
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}
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private func courseCard(_ course: Course) -> some View {
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let isSelected = currentCourse?.videoHash == course.videoHash
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return Button {
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selectCourse(course)
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} label: {
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VStack(alignment: .leading, spacing: 6) {
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Text(course.title)
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.font(.system(size: 16, weight: .bold))
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.foregroundColor(isSelected ? Theme.textDark : .white)
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.lineLimit(2)
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Text("\(course.enrolled ? "已选修" : "未选修") · \(course.sentenceCount) 句\(isSelected ? " · 当前课程" : "")")
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.font(.system(size: 13))
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.foregroundColor(isSelected ? Theme.accentDeep : Theme.textMuted)
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}
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding(14)
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.background(isSelected ? Theme.selected : Theme.surface)
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.overlay(
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RoundedRectangle(cornerRadius: 10)
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.stroke(isSelected ? Theme.accent : Theme.border, lineWidth: 1)
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)
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.clipShape(RoundedRectangle(cornerRadius: 10))
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}
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.buttonStyle(.plain)
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}
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private func selectCourse(_ course: Course) {
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currentCourse = course
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let video = course.toVideoSummary()
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catalogVM.select(video)
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activeModule = .train
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}
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/// 训练页的课程卡片直接操作 CatalogViewModel；
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/// 这里监听它的 activeVideoHash，保证返回课程页时高亮和“当前课程”同步。
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private func syncCurrentCourse(with videoHash: String?) {
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guard let videoHash else { return }
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if let course = courses.first(where: { $0.videoHash == videoHash }) {
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currentCourse = course
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return
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}
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// 本地导入视频不在 /courses 列表里；仍建立当前课程信息，避免课程页状态回退。
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if let video = catalogVM.videos.first(where: { $0.videoHash == videoHash }) {
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currentCourse = Course(
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videoHash: video.videoHash,
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title: video.title,
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durationMs: video.durationMs,
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language: video.language,
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sentenceCount: video.sentenceCount,
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streamUrl: video.streamUrl,
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enrolled: false
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)
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}
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}
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// MARK: - Mine Page
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private var minePage: some View {
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ScrollView {
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VStack(alignment: .leading, spacing: 12) {
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Text(auth.nickname.isEmpty ? "我的学习" : auth.nickname)
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.font(.system(size: 26, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 16)
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.padding(.top, 12)
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if let course = currentCourse {
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Text("当前课程：\(course.title)")
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.font(.system(size: 14, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 16)
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}
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Text("此页面显示当前课程的测试记录和配音分享")
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.font(.system(size: 13))
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.foregroundColor(Theme.textMuted)
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.padding(.horizontal, 16)
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HStack(spacing: 10) {
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Button {
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Task { await loadManagedHistory() }
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} label: {
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Text(managementIsLoading ? "刷新中..." : "刷新记录")
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.font(.system(size: 13, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 14)
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.frame(height: 36)
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.background(Theme.buttonBlue)
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.clipShape(RoundedRectangle(cornerRadius: 8))
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}
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.buttonStyle(.plain)
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.disabled(managementIsLoading)
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if !managementStatus.isEmpty {
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Text(managementStatus)
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.font(.system(size: 12))
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.foregroundColor(Theme.textMuted)
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}
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}
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.padding(.horizontal, 16)
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historyGroup(title: "我的测试结果", isEmpty: managedResults.isEmpty) {
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ForEach(managedResults) { row in
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resultRow(row)
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}
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}
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historyGroup(title: "我的配音分享", isEmpty: managedDubShares.isEmpty) {
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ForEach(managedDubShares) { row in
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dubShareRow(row)
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}
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}
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}
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.padding(.bottom, 24)
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}
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.task(id: currentCourse?.videoHash) {
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await loadManagedHistory()
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}
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}
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private func historyGroup<Content: View>(
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title: String,
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isEmpty: Bool,
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@ViewBuilder content: () -> Content
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) -> some View {
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VStack(alignment: .leading, spacing: 10) {
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Text(title)
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.font(.system(size: 18, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 16)
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if isEmpty {
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Text("该课程暂无记录")
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.font(.system(size: 13))
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.foregroundColor(Theme.textMuted)
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.padding(14)
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.frame(maxWidth: .infinity, alignment: .leading)
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.background(Theme.surface)
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.clipShape(RoundedRectangle(cornerRadius: 10))
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.padding(.horizontal, 16)
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} else {
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LazyVStack(spacing: 8, content: content)
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.padding(.horizontal, 16)
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}
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}
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}
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private func resultRow(_ row: UserResultSummary) -> some View {
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historyRow(
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title: "第 \(row.sentenceIndex + 1) 句 · \(String(format: "%.0f", row.overallScore)) 分",
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subtitle: "\(row.passed ? "通过" : "未通过") · \(displayDate(row.createdAt))\n\(row.sentenceText)",
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isDeleting: deletingHistoryID == row.id,
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deleteLabel: "删除"
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) {
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await deleteResult(row)
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}
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}
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private func dubShareRow(_ row: UserDubShareSummary) -> some View {
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historyRow(
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title: row.title,
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subtitle: "\(row.segmentCount) 句 · 平均 \(String(format: "%.0f", row.averageScore)) 分 · \(displayDate(row.createdAt))",
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isDeleting: deletingHistoryID == row.id,
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deleteLabel: "删除"
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) {
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await deleteDubShare(row)
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}
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}
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private func historyRow(
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title: String,
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subtitle: String,
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isDeleting: Bool,
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deleteLabel: String,
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action: @escaping () async -> Void
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) -> some View {
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VStack(alignment: .leading, spacing: 8) {
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Text(title)
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.font(.system(size: 15, weight: .bold))
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.foregroundColor(Theme.textDark)
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Text(subtitle)
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.font(.system(size: 12))
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.foregroundColor(Theme.textSubtle)
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.fixedSize(horizontal: false, vertical: true)
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HStack {
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Spacer()
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Button {
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Task { await action() }
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} label: {
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Text(isDeleting ? "删除中..." : deleteLabel)
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.font(.system(size: 12, weight: .bold))
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.foregroundColor(.white)
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.padding(.horizontal, 12)
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.frame(height: 28)
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.background(isDeleting ? Theme.border : Theme.danger)
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.clipShape(RoundedRectangle(cornerRadius: 7))
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}
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.buttonStyle(.plain)
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.disabled(isDeleting)
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}
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}
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.padding(12)
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.frame(maxWidth: .infinity, alignment: .leading)
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.background(Theme.surface)
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.overlay(
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RoundedRectangle(cornerRadius: 10)
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.stroke(Theme.lightBorder, lineWidth: 1)
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)
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.clipShape(RoundedRectangle(cornerRadius: 10))
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}
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private func loadManagedHistory() async {
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guard let course = currentCourse else {
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managementStatus = "请先选择课程"
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managedResults = []
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managedDubShares = []
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return
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}
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managementIsLoading = true
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managementStatus = "正在加载..."
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defer { managementIsLoading = false }
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do {
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async let resultsTask = UserHistoryAPI.results(token: auth.token)
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async let sharesTask = UserHistoryAPI.dubShares(token: auth.token)
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let (allResults, allShares) = try await (resultsTask, sharesTask)
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managedResults = allResults.filter { $0.videoHash.caseInsensitiveCompare(course.videoHash) == .orderedSame }
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managedDubShares = allShares.filter { $0.videoHash.caseInsensitiveCompare(course.videoHash) == .orderedSame }
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managementStatus = "共 \(managedResults.count) 条测试、\(managedDubShares.count) 条配音"
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} catch {
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managementStatus = "记录加载失败：\(error.localizedDescription)"
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}
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}
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private func deleteResult(_ row: UserResultSummary) async {
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guard let course = currentCourse, deletingHistoryID == nil else { return }
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deletingHistoryID = row.id
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defer { deletingHistoryID = nil }
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do {
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try await UserHistoryAPI.deleteResult(token: auth.token, attemptId: row.attemptId)
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managedResults.removeAll { $0.id == row.id }
|
||
historyManager.store.removeScore(videoHash: course.videoHash, sentenceIndex: row.sentenceIndex)
|
||
historyManager.notifyHistoryChanged()
|
||
managementStatus = "测试记录已删除"
|
||
} catch {
|
||
managementStatus = "删除失败：\(error.localizedDescription)"
|
||
}
|
||
}
|
||
|
||
private func deleteDubShare(_ row: UserDubShareSummary) async {
|
||
guard let course = currentCourse, deletingHistoryID == nil else { return }
|
||
deletingHistoryID = row.id
|
||
defer { deletingHistoryID = nil }
|
||
do {
|
||
try await UserHistoryAPI.deleteDubShare(token: auth.token, shareId: row.shareId)
|
||
managedDubShares.removeAll { $0.id == row.id }
|
||
historyManager.store.removeAllAudio(videoHash: course.videoHash)
|
||
historyManager.notifyHistoryChanged()
|
||
managementStatus = "配音分享已删除"
|
||
} catch {
|
||
managementStatus = "删除失败：\(error.localizedDescription)"
|
||
}
|
||
}
|
||
|
||
private func displayDate(_ value: String) -> String {
|
||
value.replacingOccurrences(of: "T", with: " ").prefix(16).description
|
||
}
|
||
|
||
// MARK: - Load Courses
|
||
|
||
private func loadCourses() async {
|
||
guard !isRefreshingCourses else { return }
|
||
isRefreshingCourses = true
|
||
defer { isRefreshingCourses = false }
|
||
courseStatusText = "正在同步"
|
||
do {
|
||
var fetched = try await AuthAPI.courses(token: auth.token)
|
||
var boundarySucceeded = 0
|
||
var boundaryFailed = 0
|
||
courses = fetched
|
||
if !fetched.isEmpty {
|
||
courseStatusText = "\(fetched.count) 个课程，正在刷新句界"
|
||
let refreshed = await catalogVM.preloadBoundaries(
|
||
for: fetched.map { $0.toVideoSummary() }
|
||
)
|
||
boundarySucceeded = refreshed.succeeded
|
||
boundaryFailed = refreshed.failed
|
||
let refreshedByHash = Dictionary(uniqueKeysWithValues: refreshed.videos.map { ($0.videoHash, $0) })
|
||
fetched = fetched.map { course in
|
||
guard let video = refreshedByHash[course.videoHash] else { return course }
|
||
return Course(
|
||
videoHash: course.videoHash,
|
||
title: course.title,
|
||
durationMs: video.durationMs,
|
||
language: course.language,
|
||
sentenceCount: video.sentenceCount,
|
||
streamUrl: course.streamUrl,
|
||
enrolled: course.enrolled
|
||
)
|
||
}
|
||
if currentCourse != nil,
|
||
let video = refreshed.videos.first(where: { $0.videoHash == currentCourse?.videoHash }) {
|
||
currentCourse = fetched.first(where: { $0.videoHash == video.videoHash })
|
||
}
|
||
}
|
||
courses = fetched
|
||
if fetched.isEmpty {
|
||
courseStatusText = "0 个课程"
|
||
} else if boundaryFailed == 0 {
|
||
courseStatusText = "\(fetched.count) 个课程 · 句界已刷新"
|
||
} else if boundarySucceeded == 0 {
|
||
courseStatusText = "\(fetched.count) 个课程 · 句界刷新失败"
|
||
} else {
|
||
courseStatusText = "\(fetched.count) 个课程 · 句界部分刷新（失败 \(boundaryFailed)）"
|
||
}
|
||
} catch {
|
||
courseStatusText = "课程加载失败：\(error.localizedDescription)"
|
||
}
|
||
}
|
||
|
||
// MARK: - Fullscreen
|
||
|
||
private func enterFullscreen() {
|
||
AppDelegate.lockOrientation(.landscape)
|
||
showFullscreenPlayer = true
|
||
}
|
||
|
||
private func exitFullscreen() {
|
||
let restored: UIInterfaceOrientationMask =
|
||
UIDevice.current.userInterfaceIdiom == .pad ? .all : .portrait
|
||
AppDelegate.lockOrientation(restored)
|
||
showFullscreenPlayer = false
|
||
}
|
||
|
||
private var chineseSubtitlePlaceholder: String {
|
||
if chineseTranslationLoading {
|
||
return "正在翻译中文字幕…"
|
||
}
|
||
if !chineseTranslationError.isEmpty {
|
||
return chineseTranslationError
|
||
}
|
||
return "暂无中文字幕"
|
||
}
|
||
|
||
private func ensureChineseTranslations() {
|
||
guard showChineseSubtitles, activeModule == .train else {
|
||
return
|
||
}
|
||
guard let item = controller.currentItem else {
|
||
return
|
||
}
|
||
let needsTranslation = item.sentences.contains {
|
||
!($0.text ?? "").trimmingCharacters(in: .whitespacesAndNewlines).isEmpty &&
|
||
($0.zhText ?? "").trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
|
||
}
|
||
guard needsTranslation else {
|
||
chineseTranslationLoading = false
|
||
chineseTranslationError = ""
|
||
return
|
||
}
|
||
chineseTranslationTask?.cancel()
|
||
chineseTranslationLoading = true
|
||
chineseTranslationError = ""
|
||
let mediaId = item.id
|
||
chineseTranslationTask = Task {
|
||
do {
|
||
let expectedIndexes = item.sentences.compactMap { sentence -> Int? in
|
||
let text = (sentence.text ?? "").trimmingCharacters(in: .whitespacesAndNewlines)
|
||
return text.isEmpty ? nil : sentence.index
|
||
}
|
||
let map = try await SentenceBoundaryAPI.loadSubtitles(
|
||
videoHash: mediaId,
|
||
expectedIndexes: expectedIndexes
|
||
)
|
||
guard !Task.isCancelled else { return }
|
||
await MainActor.run {
|
||
guard controller.currentItem?.id == mediaId else { return }
|
||
let updated = (controller.currentItem?.sentences ?? []).map { sentence in
|
||
sentence.withZhText(map[sentence.index] ?? sentence.zhText)
|
||
}
|
||
controller.updateBoundaries(updated)
|
||
chineseTranslationLoading = false
|
||
chineseTranslationError = ""
|
||
controller.showTransientMessage("已加载中文字幕")
|
||
}
|
||
} catch {
|
||
guard !Task.isCancelled else { return }
|
||
await MainActor.run {
|
||
chineseTranslationLoading = false
|
||
chineseTranslationError = "中文字幕翻译失败"
|
||
controller.showTransientMessage("中文字幕翻译失败：\(error.localizedDescription)")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|