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Show cached channel header on tvOS while channel loads

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Render subscriber count, Subscribe button, and (for subscribed
channels) description in the tvOS loading state instead of just
avatar + name + spinner. Seed the in-memory author cache when
navigating to a channel from a video so the first-time channel
view has a name and avatar to display immediately.
This commit is contained in:
Arkadiusz Fal
2026-05-09 15:00:53 +02:00
parent 1f0f3a8cf0
commit c64f13a0e6
3 changed files with 46 additions and 43 deletions
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17
Yattee/Models/CachedChannelData.swift
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@@ -14,6 +14,7 @@ struct CachedChannelData: Codable {
let thumbnailURL: URL?
let bannerURL: URL?
let subscriberCount: Int?
let description: String?
/// In-memory cache of author data from video detail API responses.
@MainActor
@@ -32,21 +33,25 @@ struct CachedChannelData: Codable {
.appendingPathComponent("authors.json")
}
init(name: String, thumbnailURL: URL?, bannerURL: URL?, subscriberCount: Int?) {
init(name: String, thumbnailURL: URL?, bannerURL: URL?, subscriberCount: Int?, description: String? = nil) {
self.name = name
self.thumbnailURL = thumbnailURL
self.bannerURL = bannerURL
self.subscriberCount = subscriberCount
self.description = description
}
@MainActor
static func cacheAuthor(_ author: Author) {
guard author.thumbnailURL != nil || author.subscriberCount != nil else { return }
guard !author.id.isEmpty, !author.name.isEmpty else { return }
loadFromDiskIfNeeded()
let existing = authorCache[author.id]
authorCache[author.id] = CachedChannelData(
name: author.name,
thumbnailURL: author.thumbnailURL,
bannerURL: nil,
subscriberCount: author.subscriberCount
thumbnailURL: author.thumbnailURL ?? existing?.thumbnailURL,
bannerURL: existing?.bannerURL,
subscriberCount: author.subscriberCount ?? existing?.subscriberCount,
description: existing?.description
)
// Evict oldest entries if over limit
@@ -101,6 +106,7 @@ struct CachedChannelData: Codable {
thumbnailURL = subscription.avatarURL
bannerURL = subscription.bannerURL
subscriberCount = subscription.subscriberCount
description = subscription.channelDescription
}
init(from recentChannel: RecentChannel) {
@@ -108,6 +114,7 @@ struct CachedChannelData: Codable {
thumbnailURL = recentChannel.thumbnailURLString.flatMap { URL(string: $0) }
bannerURL = nil // RecentChannel doesn't store banner
subscriberCount = recentChannel.subscriberCount
description = nil
}
/// Load cached data for a channel ID from Subscription or RecentChannel.