yattee/Shared/Views/ChannelVideosView.swift
2022-10-27 18:03:57 +02:00

215 lines
6.6 KiB
Swift

import Siesta
import SwiftUI
struct ChannelVideosView: View {
#if os(iOS)
static let hiddenOffset = max(UIScreen.main.bounds.height, UIScreen.main.bounds.width) + 100
#endif
var channel: Channel?
@State private var presentingShareSheet = false
@State private var shareURL: URL?
@State private var subscriptionToggleButtonDisabled = false
#if os(iOS)
@State private var viewVerticalOffset = Self.hiddenOffset
#endif
@StateObject private var store = Store<Channel>()
@Environment(\.colorScheme) private var colorScheme
@Environment(\.navigationStyle) private var navigationStyle
#if os(iOS)
@Environment(\.horizontalSizeClass) private var horizontalSizeClass
@EnvironmentObject<PlayerModel> private var player
#endif
@EnvironmentObject<AccountsModel> private var accounts
@EnvironmentObject<NavigationModel> private var navigation
@EnvironmentObject<RecentsModel> private var recents
@EnvironmentObject<SubscriptionsModel> private var subscriptions
@Namespace private var focusNamespace
var presentedChannel: Channel? {
channel ?? recents.presentedChannel
}
var videos: [ContentItem] {
ContentItem.array(of: store.item?.videos ?? [])
}
var body: some View {
if navigationStyle == .tab {
NavigationView {
BrowserPlayerControls {
content
}
}
#if os(iOS)
.onChange(of: navigation.presentingChannel) { newValue in
if newValue {
store.clear()
viewVerticalOffset = 0
resource?.load()
} else {
viewVerticalOffset = Self.hiddenOffset
}
}
.offset(y: viewVerticalOffset)
.opacity(viewVerticalOffset == Self.hiddenOffset ? 0 : 1)
.animation(.easeIn(duration: 0.2), value: viewVerticalOffset)
#endif
} else {
BrowserPlayerControls {
content
}
}
}
var content: some View {
let content = VStack {
#if os(tvOS)
HStack {
Text(navigationTitle)
.font(.title2)
.frame(alignment: .leading)
Spacer()
if let channel = presentedChannel {
FavoriteButton(item: FavoriteItem(section: .channel(channel.id, channel.name)))
.labelStyle(.iconOnly)
}
if let subscribers = store.item?.subscriptionsString {
Text("**\(subscribers)** subscribers")
.foregroundColor(.secondary)
}
subscriptionToggleButton
}
.frame(maxWidth: .infinity)
#endif
VerticalCells(items: videos)
.environment(\.inChannelView, true)
#if os(tvOS)
.prefersDefaultFocus(in: focusNamespace)
#endif
}
#if !os(tvOS)
.toolbar {
ToolbarItem(placement: .navigation) {
if navigationStyle == .tab {
Button("Done") {
navigation.presentingChannel = false
}
}
}
ToolbarItem {
HStack {
HStack(spacing: 3) {
Text("\(store.item?.subscriptionsString ?? "")")
.fontWeight(.bold)
Text(" subscribers")
.allowsTightening(true)
.foregroundColor(.secondary)
.opacity(store.item?.subscriptionsString != nil ? 1 : 0)
}
ShareButton(
contentItem: contentItem,
presentingShareSheet: $presentingShareSheet,
shareURL: $shareURL
)
subscriptionToggleButton
if let channel = presentedChannel {
FavoriteButton(item: FavoriteItem(section: .channel(channel.id, channel.name)))
}
}
}
}
#endif
#if os(iOS)
.sheet(isPresented: $presentingShareSheet) {
if let shareURL = shareURL {
ShareSheet(activityItems: [shareURL])
}
}
#endif
.onAppear {
resource?.loadIfNeeded()
}
#if !os(tvOS)
.navigationTitle(navigationTitle)
#endif
return Group {
if #available(macOS 12.0, *) {
content
#if os(tvOS)
.background(Color.background(scheme: colorScheme))
#endif
#if !os(iOS)
.focusScope(focusNamespace)
#endif
} else {
content
}
}
}
private var resource: Resource? {
guard let channel = presentedChannel else {
return nil
}
let resource = accounts.api.channel(channel.id)
resource.addObserver(store)
return resource
}
@ViewBuilder private var subscriptionToggleButton: some View {
if let channel = presentedChannel {
Group {
if accounts.app.supportsSubscriptions && accounts.signedIn {
if subscriptions.isSubscribing(channel.id) {
Button("Unsubscribe") {
subscriptionToggleButtonDisabled = true
subscriptions.unsubscribe(channel.id) {
subscriptionToggleButtonDisabled = false
}
}
} else {
Button("Subscribe") {
subscriptionToggleButtonDisabled = true
subscriptions.subscribe(channel.id) {
subscriptionToggleButtonDisabled = false
navigation.sidebarSectionChanged.toggle()
}
}
}
}
}
.disabled(subscriptionToggleButtonDisabled)
}
}
private var contentItem: ContentItem {
ContentItem(channel: presentedChannel)
}
private var navigationTitle: String {
presentedChannel?.name ?? store.item?.name ?? "No channel"
}
}