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feat: ios incremental sync optimization

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Alex 2025-05-08 11:40:31 -05:00
parent 09e5503fb1
commit 87599daaac
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GPG key ID: 53CD082B3A5E1082
1 changed files with 30 additions and 9 deletions

39
mobile/ios/Runner/Platform/MediaManager.swift
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@ -1,5 +1,21 @@
import Photos
class WrapperAsset: Hashable, Equatable {
var asset: Asset
init(with asset: Asset) {
self.asset = asset
}
func hash(into hasher: inout Hasher) {
hasher.combine(self.asset.id)
}
static func == (lhs: WrapperAsset, rhs: WrapperAsset) -> Bool {
return lhs.asset.id == rhs.asset.id
}
}
class MediaManager {
private let _defaults: UserDefaults
private let _changeTokenKey = "immich:changeToken"
@ -7,7 +23,7 @@ class MediaManager {
init(with defaults: UserDefaults = .standard) {
self._defaults = defaults
}
@available(iOS 16, *)
func _getChangeToken() -> PHPersistentChangeToken? {
guard let encodedToken = _defaults.data(forKey: _changeTokenKey) else {
@ -91,19 +107,22 @@ class MediaManager {
let dateFormatter = ISO8601DateFormatter()
dateFormatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
var updatedArr: [Asset] = []
var deletedArr: [String] = []
var updatedArr: Set<WrapperAsset> = []
var deletedArr: Set<String> = []
for changes in result {
let details = try changes.changeDetails(for: PHObjectType.asset)
let updated = details.updatedLocalIdentifiers.union(details.insertedLocalIdentifiers)
let deleted = details.deletedLocalIdentifiers
let options = PHFetchOptions()
options.includeHiddenAssets = true
options.includeHiddenAssets = false
let updatedAssets = PHAsset.fetchAssets(withLocalIdentifiers: Array(updated), options: options)
updatedAssets.enumerateObjects { (asset, _, _) in
let id = asset.localIdentifier
let name = PHAssetResource.assetResources(for: asset).first?.originalFilename ?? asset.title()
let type: Int64 = Int64(asset.mediaType.rawValue)
@ -111,7 +130,7 @@ class MediaManager {
let updatedAt = asset.modificationDate.map { dateFormatter.string(from: $0) }
let durationInSeconds: Int64 = Int64(asset.duration)
let domainAsset = Asset(
let domainAsset = WrapperAsset(with: Asset(
id: id,
name: name,
type: type,
@ -119,14 +138,16 @@ class MediaManager {
updatedAt: updatedAt,
durationInSeconds: durationInSeconds,
albumIds: self._getAlbumIds(forAsset: asset)
)
updatedArr.append(domainAsset)
))
updatedArr.insert(domainAsset)
}
deletedArr.append(contentsOf: details.deletedLocalIdentifiers)
deletedArr.formUnion(deleted)
}
let delta = SyncDelta(hasChanges: true, updates: updatedArr, deletes: deletedArr)
let delta = SyncDelta(hasChanges: true, updates: Array(updatedArr.map { $0.asset }), deletes: Array(deletedArr))
completion(.success(delta))
return
} catch {