another.im-ios/ConversationsClassic/AppCore/Middlewares/SharingMiddleware.swift
2024-07-14 15:42:51 +02:00

149 lines
6.7 KiB
Swift

import AVFoundation
import Combine
import Foundation
import Photos
import UIKit
final class SharingMiddleware {
static let shared = SharingMiddleware()
// swiftlint:disable:next function_body_length
func middleware(state: AppState, action: AppAction) -> AnyPublisher<AppAction, Never> {
switch action {
// MARK: - Camera and Gallery Access
case .sharingAction(.checkCameraAccess):
return Future<AppAction, Never> { promise in
let status = AVCaptureDevice.authorizationStatus(for: .video)
switch status {
case .authorized:
promise(.success(.sharingAction(.setCameraAccess(true))))
case .notDetermined:
AVCaptureDevice.requestAccess(for: .video) { granted in
promise(.success(.sharingAction(.setCameraAccess(granted))))
}
case .denied, .restricted:
promise(.success(.sharingAction(.setCameraAccess(false))))
@unknown default:
promise(.success(.sharingAction(.setCameraAccess(false))))
}
}
.eraseToAnyPublisher()
case .sharingAction(.checkGalleryAccess):
return Future<AppAction, Never> { promise in
let status = PHPhotoLibrary.authorizationStatus()
switch status {
case .authorized, .limited:
promise(.success(.sharingAction(.setGalleryAccess(true))))
case .notDetermined:
PHPhotoLibrary.requestAuthorization { status in
promise(.success(.sharingAction(.setGalleryAccess(status == .authorized))))
}
case .denied, .restricted:
promise(.success(.sharingAction(.setGalleryAccess(false))))
@unknown default:
promise(.success(.sharingAction(.setGalleryAccess(false))))
}
}
.eraseToAnyPublisher()
case .fileAction(.itemsFromGalleryFetched(let items)):
return Just(.sharingAction(.galleryItemsUpdated(items: items)))
.eraseToAnyPublisher()
// MARK: - Sharing
case .sharingAction(.shareMedia(let ids)):
return Future<AppAction, Never> { promise in
let assets = PHAsset.fetchAssets(withLocalIdentifiers: ids, options: nil)
assets.enumerateObjects { asset, _, _ in
if asset.mediaType == .image {
PHImageManager.default().requestImage(
for: asset,
targetSize: PHImageManagerMaximumSize,
contentMode: .aspectFill,
options: nil
) { image, _ in
if let data = image?.jpegData(compressionQuality: 1.0) {
DispatchQueue.main.async {
let newMessageId = UUID().uuidString
store.dispatch(.fileAction(.copyFileForUploading(
messageId: newMessageId,
fileData: data,
thumbnailData: store.state.sharingState.galleryItems.first(where: { $0.id == asset.localIdentifier })?.thumbnail
)))
}
}
}
} else if asset.mediaType == .video {
let options = PHVideoRequestOptions()
options.version = .original
options.deliveryMode = .highQualityFormat
PHImageManager.default().requestAVAsset(forVideo: asset, options: options) { avAsset, _, _ in
guard let urlAsset = avAsset as? AVURLAsset else { return }
let exporter = AVAssetExportSession(asset: urlAsset, presetName: AVAssetExportPresetHighestQuality)
exporter?.outputFileType = .mp4
let outputURL = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString + ".mp4")
exporter?.outputURL = outputURL
exporter?.exportAsynchronously {
switch exporter?.status {
case .completed:
if let data = try? Data(contentsOf: outputURL) {
DispatchQueue.main.async {
let newMessageId = UUID().uuidString
store.dispatch(.fileAction(.copyFileForUploading(
messageId: newMessageId,
fileData: data,
thumbnailData: nil
)))
}
}
default:
break
}
}
}
}
}
promise(.success(.empty))
}
.eraseToAnyPublisher()
case .sharingAction(.cameraCaptured(let media, let type)):
print("Camera captured: \(media.count)")
return Empty().eraseToAnyPublisher()
case .sharingAction(.shareLocation(let lat, let lon)):
if let chat = state.conversationsState.currentChat {
let msg = "geo:\(lat),\(lon)"
return Just(.conversationAction(.sendMessage(from: chat.account, to: chat.participant, body: msg)))
.eraseToAnyPublisher()
} else {
return Empty().eraseToAnyPublisher()
}
case .sharingAction(.shareDocuments(let data)):
print("Sharing documents: \(data.count)")
return Empty().eraseToAnyPublisher()
case .sharingAction(.shareContact(let jid)):
if let chat = state.conversationsState.currentChat {
let msg = "contact:\(jid)"
return Just(.conversationAction(.sendMessage(from: chat.account, to: chat.participant, body: msg)))
.eraseToAnyPublisher()
} else {
return Empty().eraseToAnyPublisher()
}
default:
return Empty().eraseToAnyPublisher()
}
}
}