0.10.6
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import Foundation
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import SwiftUI
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@MainActor
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struct AudioMessagePlayer: View {
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@ObservedObject var model: AppModel
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@ObservedObject private var playback: MediaPlaybackCoordinator
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let message: ChatMessage
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let onFallbackTap: () -> Void
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init(
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model: AppModel,
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message: ChatMessage,
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onFallbackTap: @escaping () -> Void
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) {
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self.model = model
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_playback = ObservedObject(wrappedValue: model.audioPlayback)
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self.message = message
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self.onFallbackTap = onFallbackTap
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}
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var body: some View {
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Group {
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if message.kind == .voice {
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voicePlayer
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} else {
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musicPlayer
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}
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}
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.frame(width: 252, alignment: .leading)
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.task(id: message.remoteAttachmentURL) {
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await model.prepareMediaPreview(message)
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}
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.accessibilityElement(children: .contain)
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}
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private var voicePlayer: some View {
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HStack(spacing: 10) {
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playButton
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VStack(alignment: .leading, spacing: 3) {
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WaveformScrubber(
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samples: model.audioWaveform(for: message),
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progress: progress,
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activeColor: accent,
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inactiveColor: secondaryAccent,
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onSeek: seek
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)
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.frame(height: 30)
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HStack(spacing: 7) {
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Text(voiceTimeText)
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.font(.caption2.monospacedDigit())
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.foregroundStyle(secondaryText)
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Spacer()
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Button(action: playback.cycleVoiceRate) {
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Text(rateText)
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.font(.caption2.monospacedDigit().weight(.bold))
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.foregroundStyle(accent)
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.padding(.horizontal, 7)
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.padding(.vertical, 3)
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.background(accent.opacity(0.14), in: Capsule())
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}
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.buttonStyle(.plain)
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.accessibilityLabel("Скорость воспроизведения \(rateText)")
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}
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}
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}
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}
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private var musicPlayer: some View {
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HStack(spacing: 11) {
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playButton
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VStack(alignment: .leading, spacing: 4) {
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Text(message.localFilename ?? "Аудиофайл")
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.font(.subheadline.weight(.semibold))
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.foregroundStyle(primaryText)
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.lineLimit(1)
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MediaProgressScrubber(
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progress: progress,
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activeColor: accent,
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inactiveColor: secondaryAccent,
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onSeek: seek
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)
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.frame(height: 12)
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HStack(spacing: 6) {
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Text(audioTimeText)
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if let byteCount = message.byteCount {
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Text("·")
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Text(ByteCountFormatter.string(
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fromByteCount: Int64(byteCount),
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countStyle: .file
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))
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}
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}
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.font(.caption2.monospacedDigit())
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.foregroundStyle(secondaryText)
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}
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}
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}
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private var playButton: some View {
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Button(action: togglePlayback) {
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ZStack {
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Circle()
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.fill(accent.opacity(message.direction == .outgoing ? 0.2 : 0.14))
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if model.isMediaPreviewLoading(message) && localURL == nil {
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ProgressView()
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.tint(accent)
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.controlSize(.small)
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} else {
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Image(systemName: isPlaying ? "pause.fill" : "play.fill")
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.font(.system(size: 18, weight: .bold))
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.foregroundStyle(accent)
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.offset(x: isPlaying ? 0 : 1)
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}
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}
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.frame(width: 44, height: 44)
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}
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.buttonStyle(.plain)
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.accessibilityLabel(isPlaying ? "Пауза" : "Воспроизвести")
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}
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private var localURL: URL? {
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model.mediaPreviewURL(for: message)
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}
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private var isCurrent: Bool {
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playback.currentMessageID == message.id
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}
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private var isPlaying: Bool {
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isCurrent && playback.isPlaying
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}
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private var totalDuration: TimeInterval {
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let value = isCurrent && playback.duration > 0
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? playback.duration
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: (message.duration ?? 0)
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return max(0, value)
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}
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private var displayedTime: TimeInterval {
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isCurrent ? playback.currentTime : 0
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}
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private var progress: Double {
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guard isCurrent, totalDuration > 0 else { return 0 }
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return max(0, min(1, playback.currentTime / totalDuration))
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}
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private var voiceTimeText: String {
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if isCurrent, playback.currentTime > 0 {
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return "\(MediaTimeFormatter.string(displayedTime)) / \(MediaTimeFormatter.string(totalDuration))"
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}
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return MediaTimeFormatter.string(totalDuration)
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}
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private var audioTimeText: String {
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"\(MediaTimeFormatter.string(displayedTime)) / \(MediaTimeFormatter.string(totalDuration))"
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}
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private var rateText: String {
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if playback.voiceRate < 1.25 { return "1×" }
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if playback.voiceRate < 1.75 { return "1.5×" }
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return "2×"
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}
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private var accent: Color {
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message.direction == .outgoing ? .white : .accentColor
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}
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private var secondaryAccent: Color {
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message.direction == .outgoing ? .white.opacity(0.30) : Color.secondary.opacity(0.24)
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}
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private var primaryText: Color {
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message.direction == .outgoing ? .white : .primary
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}
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private var secondaryText: Color {
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message.direction == .outgoing ? .white.opacity(0.78) : .secondary
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}
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private func togglePlayback() {
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guard let localURL else {
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Task {
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await model.prepareMediaPreview(message)
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guard let downloadedURL = model.mediaPreviewURL(for: message) else {
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onFallbackTap()
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return
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}
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playback.toggle(
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messageID: message.id,
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url: downloadedURL,
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durationHint: message.duration,
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isVoice: message.kind == .voice
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)
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}
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return
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}
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playback.toggle(
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messageID: message.id,
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url: localURL,
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durationHint: message.duration,
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isVoice: message.kind == .voice
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)
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}
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private func seek(_ fraction: Double) {
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guard let localURL else { return }
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playback.seek(
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messageID: message.id,
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url: localURL,
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durationHint: message.duration,
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isVoice: message.kind == .voice,
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fraction: fraction
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)
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}
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}
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private struct WaveformScrubber: View {
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let samples: [Float]
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let progress: Double
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let activeColor: Color
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let inactiveColor: Color
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let onSeek: (Double) -> Void
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var body: some View {
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GeometryReader { geometry in
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HStack(alignment: .center, spacing: 2) {
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ForEach(Array(samples.enumerated()), id: \.offset) { index, sample in
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Capsule()
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.fill(sampleProgress(index) <= progress ? activeColor : inactiveColor)
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.frame(maxWidth: .infinity)
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.frame(height: max(3, geometry.size.height * CGFloat(sample)))
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}
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}
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.frame(maxHeight: .infinity)
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.contentShape(Rectangle())
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.gesture(
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DragGesture(minimumDistance: 0)
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.onChanged { value in
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onSeek(fraction(at: value.location.x, width: geometry.size.width))
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}
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)
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}
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.accessibilityLabel("Позиция голосового сообщения")
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.accessibilityValue("\(Int(progress * 100)) процентов")
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}
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private func sampleProgress(_ index: Int) -> Double {
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guard samples.count > 1 else { return 0 }
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return Double(index) / Double(samples.count - 1)
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}
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}
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private struct MediaProgressScrubber: View {
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let progress: Double
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let activeColor: Color
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let inactiveColor: Color
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let onSeek: (Double) -> Void
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var body: some View {
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GeometryReader { geometry in
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ZStack(alignment: .leading) {
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Capsule().fill(inactiveColor).frame(height: 3)
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Capsule()
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.fill(activeColor)
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.frame(width: geometry.size.width * CGFloat(progress), height: 3)
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Circle()
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.fill(activeColor)
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.frame(width: 9, height: 9)
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.offset(x: max(0, geometry.size.width * CGFloat(progress) - 4.5))
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}
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.frame(maxHeight: .infinity)
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.contentShape(Rectangle())
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.gesture(
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DragGesture(minimumDistance: 0)
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.onChanged { value in
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onSeek(fraction(at: value.location.x, width: geometry.size.width))
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}
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)
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}
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.accessibilityLabel("Позиция аудиофайла")
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.accessibilityValue("\(Int(progress * 100)) процентов")
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}
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}
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private func fraction(at x: CGFloat, width: CGFloat) -> Double {
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guard width > 0 else { return 0 }
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return max(0, min(1, Double(x / width)))
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}
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enum MediaTimeFormatter {
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static func string(_ duration: TimeInterval) -> String {
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guard duration.isFinite else { return "0:00" }
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let seconds = max(0, Int(duration.rounded(.down)))
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if seconds >= 3_600 {
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return String(format: "%d:%02d:%02d", seconds / 3_600, (seconds / 60) % 60, seconds % 60)
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}
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return String(format: "%d:%02d", seconds / 60, seconds % 60)
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}
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}
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