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feat(mobile): cache latest ios widget entry for fallback (#19824)

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* cache the last image an ios widget fetched and use if a fetch fails in a future timeline build

* code review fixes

* downgrade pbx for flutter

* use cache in snapshots
This commit is contained in:
Brandon Wees 2025-07-09 13:59:54 -05:00 • committed by GitHub
parent a201665b7e
commit a918481c0b
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GPG key ID: B5690EEEBB952194
7 changed files with 248 additions and 146 deletions
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35
mobile/ios/WidgetExtension/widgets/MemoryWidget.swift
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@ -19,21 +19,23 @@ struct ImmichMemoryProvider: TimelineProvider {
in context: Context,
completion: @escaping @Sendable (ImageEntry) -> Void
) {
let cacheKey = "memory_\(context.family.rawValue)"
Task {
guard let api = try? await ImmichAPI() else {
completion(ImageEntry(date: Date(), image: nil, error: .noLogin))
completion(ImageEntry.handleCacheFallback(for: cacheKey, error: .noLogin).entries.first!)
return
}
guard let memories = try? await api.fetchMemory(for: Date.now)
else {
completion(ImageEntry(date: Date(), image: nil, error: .fetchFailed))
completion(ImageEntry.handleCacheFallback(for: cacheKey).entries.first!)
return
}
for memory in memories {
if let asset = memory.assets.first(where: { $0.type == .image }),
var entry = try? await buildEntry(
var entry = try? await ImageEntry.build(
api: api,
asset: asset,
dateOffset: 0,
@ -50,20 +52,14 @@ struct ImmichMemoryProvider: TimelineProvider {
guard
let randomImage = try? await api.fetchSearchResults(
with: SearchFilters(size: 1)
).first
else {
completion(ImageEntry(date: Date(), image: nil, error: .fetchFailed))
return
}
guard
var imageEntry = try? await buildEntry(
).first,
var imageEntry = try? await ImageEntry.build(
api: api,
asset: randomImage,
dateOffset: 0
)
else {
completion(ImageEntry(date: Date(), image: nil, error: .fetchFailed))
completion(ImageEntry.handleCacheFallback(for: cacheKey).entries.first!)
return
}
@ -80,9 +76,12 @@ struct ImmichMemoryProvider: TimelineProvider {
var entries: [ImageEntry] = []
let now = Date()
let cacheKey = "memory_\(context.family.rawValue)"
guard let api = try? await ImmichAPI() else {
entries.append(ImageEntry(date: now, image: nil, error: .noLogin))
completion(Timeline(entries: entries, policy: .atEnd))
completion(
ImageEntry.handleCacheFallback(for: cacheKey, error: .noLogin)
)
return
}
@ -95,7 +94,7 @@ struct ImmichMemoryProvider: TimelineProvider {
for asset in memory.assets {
if asset.type == .image && totalAssets < 12 {
group.addTask {
try? await buildEntry(
try? await ImageEntry.build(
api: api,
asset: asset,
dateOffset: totalAssets,
@ -132,7 +131,8 @@ struct ImmichMemoryProvider: TimelineProvider {
// If we fail to fetch images, we still want to add an entry
// with a nil image and an error
if entries.count == 0 {
entries.append(ImageEntry(date: now, image: nil, error: .fetchFailed))
completion(ImageEntry.handleCacheFallback(for: cacheKey))
return
}
// Resize all images to something that can be stored by iOS
@ -140,6 +140,9 @@ struct ImmichMemoryProvider: TimelineProvider {
entries[i].resize()
}
// cache the last image
try? entries.last!.cache(for: cacheKey)
completion(Timeline(entries: entries, policy: .atEnd))
}
}