390 lines
16 KiB
Swift
390 lines
16 KiB
Swift
import Foundation
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final class FileStore {
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static let shared = FileStore()
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static var fileFolder: URL {
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// swiftlint:disable:next force_unwrapping
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let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
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let subdirectoryURL = documentsURL.appendingPathComponent(Const.fileFolder)
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if !FileManager.default.fileExists(atPath: subdirectoryURL.path) {
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try? FileManager.default.createDirectory(at: subdirectoryURL, withIntermediateDirectories: true, attributes: nil)
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}
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return subdirectoryURL
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}
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func storeCaptured(messageId: String, _ data: Data, _ type: GalleryMediaType) async throws -> (String, AttachmentType) {
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try await Task {
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// local name
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let fileId = UUID().uuidString
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let localName: String
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let msgType: AttachmentType
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switch type {
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case .photo:
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localName = "\(messageId)_\(fileId).jpg"
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msgType = .image
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case .video:
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localName = "\(messageId)_\(fileId).mov"
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msgType = .video
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}
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// save
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let localUrl = FileStore.fileFolder.appendingPathComponent(localName)
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try data.write(to: localUrl)
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return (localName, msgType)
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}.value
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}
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}
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// import Foundation
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// import Photos
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// import UIKit
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//
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// final class FileProcessing {
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// static let shared = FileProcessing()
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//
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// static var fileFolder: URL {
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// // swiftlint:disable:next force_unwrapping
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// let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
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// let subdirectoryURL = documentsURL.appendingPathComponent(Const.fileFolder)
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// if !FileManager.default.fileExists(atPath: subdirectoryURL.path) {
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// try? FileManager.default.createDirectory(at: subdirectoryURL, withIntermediateDirectories: true, attributes: nil)
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// }
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// return subdirectoryURL
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// }
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//
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// func createThumbnail(localName: String) -> String? {
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// let thumbnailFileName = "thumb_\(localName)"
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// let thumbnailUrl = FileProcessing.fileFolder.appendingPathComponent(thumbnailFileName)
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// let localUrl = FileProcessing.fileFolder.appendingPathComponent(localName)
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//
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// // check if thumbnail already exists
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// if FileManager.default.fileExists(atPath: thumbnailUrl.path) {
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// return thumbnailFileName
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// }
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//
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// // create thumbnail if not exists
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// switch localName.attachmentType {
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// case .image:
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// guard let image = UIImage(contentsOfFile: localUrl.path) else {
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// print("FileProcessing: Error loading image: \(localUrl)")
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// return nil
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// }
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// let targetSize = CGSize(width: Const.attachmentPreviewSize, height: Const.attachmentPreviewSize)
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// guard let thumbnail = scaleAndCropImage(image, targetSize) else {
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// print("FileProcessing: Error scaling image: \(localUrl)")
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// return nil
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// }
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// guard let data = thumbnail.pngData() else {
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// print("FileProcessing: Error converting thumbnail of \(localUrl) to data")
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// return nil
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// }
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// do {
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// try data.write(to: thumbnailUrl)
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// return thumbnailFileName
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// } catch {
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// print("FileProcessing: Error writing thumbnail: \(error)")
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// return nil
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// }
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//
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// default:
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// return nil
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// }
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// }
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//
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// func fetchGallery() -> [SharingGalleryItem] {
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// let items = syncGalleryEnumerate()
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// .map {
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// SharingGalleryItem(
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// id: $0.localIdentifier,
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// type: $0.mediaType == .image ? .photo : .video,
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// duration: $0.mediaType == .video ? $0.duration.minAndSec : nil
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// )
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// }
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// return items
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// }
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//
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// func fillGalleryItemsThumbnails(items: [SharingGalleryItem]) -> [SharingGalleryItem] {
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// let ids = items
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// .filter { $0.thumbnail == nil }
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// .map { $0.id }
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//
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// let assets = syncGalleryEnumerate(ids)
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// return assets.compactMap { asset in
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// if asset.mediaType == .image {
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// return syncGalleryProcessImage(asset) { [weak self] image in
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// if let thumbnail = self?.scaleAndCropImage(image, CGSize(width: Const.galleryGridSize, height: Const.galleryGridSize)) {
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// let data = thumbnail.jpegData(compressionQuality: 1.0) ?? Data()
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// return SharingGalleryItem(id: asset.localIdentifier, type: .photo, thumbnail: data)
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// } else {
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// return nil
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// }
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// }
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// } else if asset.mediaType == .video {
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// return syncGalleryProcessVideo(asset) { [weak self] avAsset in
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// // swiftlint:disable:next force_cast
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// let assetURL = avAsset as! AVURLAsset
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// let url = assetURL.url
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// if let thumbnail = self?.generateVideoThumbnail(url, CGSize(width: Const.galleryGridSize, height: Const.galleryGridSize)) {
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// let data = thumbnail.jpegData(compressionQuality: 1.0) ?? Data()
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// return SharingGalleryItem(
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// id: asset.localIdentifier,
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// type: .video,
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// thumbnail: data,
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// duration: asset.duration.minAndSec
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// )
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// } else {
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// return nil
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// }
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// }
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// } else {
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// return nil
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// }
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// }
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// }
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//
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// // This function also creates new ids for messages for each new attachment
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// func copyGalleryItemsForUploading(items: [SharingGalleryItem]) -> [(String, String)] {
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// let assets = syncGalleryEnumerate(items.map { $0.id })
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// return assets
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// .compactMap { asset in
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// let newMessageId = UUID().uuidString
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// let fileId = UUID().uuidString
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// if asset.mediaType == .image {
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// return syncGalleryProcessImage(asset) { image in
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// let localName = "\(newMessageId)_\(fileId).jpg"
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// let localUrl = FileProcessing.fileFolder.appendingPathComponent(localName)
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// if let data = image.jpegData(compressionQuality: 1.0) {
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// do {
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// try data.write(to: localUrl)
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// return (newMessageId, localName)
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// } catch {
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// return nil
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// }
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// } else {
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// return nil
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// }
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// }
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// } else if asset.mediaType == .video {
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// return syncGalleryProcessVideo(asset) { avAsset in
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// // swiftlint:disable:next force_cast
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// let assetURL = avAsset as! AVURLAsset
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// let url = assetURL.url
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// let localName = "\(newMessageId)_\(fileId).mov"
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// let localUrl = FileProcessing.fileFolder.appendingPathComponent(localName)
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// do {
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// try FileManager.default.copyItem(at: url, to: localUrl)
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// return (newMessageId, localName)
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// } catch {
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// return nil
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// }
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// }
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// } else {
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// return nil
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// }
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// }
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// }
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//
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// // This function also creates new id for file from camera capturing
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// func copyCameraCapturedForUploading(media: Data, type: SharingCameraMediaType) -> (String, String)? {
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// let newMessageId = UUID().uuidString
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// let fileId = UUID().uuidString
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// let localName: String
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// switch type {
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// case .photo:
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// localName = "\(newMessageId)_\(fileId).jpg"
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// case .video:
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// localName = "\(newMessageId)_\(fileId).mov"
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// }
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// let localUrl = FileProcessing.fileFolder.appendingPathComponent(localName)
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// do {
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// try media.write(to: localUrl)
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// return (newMessageId, localName)
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// } catch {
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// return nil
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// }
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// }
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//
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// // This function also creates new id for file from document sharing
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// func copyDocumentsForUploading(data: [Data], extensions: [String]) -> [(String, String)] {
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// data.enumerated().compactMap { index, data in
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// let newMessageId = UUID().uuidString
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// let fileId = UUID().uuidString
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// let localName = "\(newMessageId)_\(fileId).\(extensions[index])"
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// let localUrl = FileProcessing.fileFolder.appendingPathComponent(localName)
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// do {
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// try data.write(to: localUrl)
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// return (newMessageId, localName)
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// } catch {
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// print("FileProcessing: Error writing document: \(error)")
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// return nil
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// }
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// }
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// }
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// }
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//
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// private extension FileProcessing {
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// func scaleAndCropImage(_ img: UIImage, _ size: CGSize) -> UIImage? {
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// let aspect = img.size.width / img.size.height
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// let targetAspect = size.width / size.height
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// var newWidth: CGFloat
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// var newHeight: CGFloat
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// if aspect < targetAspect {
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// newWidth = size.width
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// newHeight = size.width / aspect
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// } else {
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// newHeight = size.height
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// newWidth = size.height * aspect
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// }
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//
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// UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
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// img.draw(in: CGRect(x: (size.width - newWidth) / 2, y: (size.height - newHeight) / 2, width: newWidth, height: newHeight))
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// let newImage = UIGraphicsGetImageFromCurrentImageContext()
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// UIGraphicsEndImageContext()
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//
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// return newImage
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// }
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//
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// func syncGalleryEnumerate(_ ids: [String]? = nil) -> [PHAsset] {
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// var result: [PHAsset] = []
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//
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// let group = DispatchGroup()
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// DispatchQueue.global(qos: .userInitiated).sync {
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// let fetchOptions = PHFetchOptions()
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// fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]
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// if let ids {
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// fetchOptions.predicate = NSPredicate(format: "localIdentifier IN %@", ids)
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// }
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// let assets = PHAsset.fetchAssets(with: fetchOptions)
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// assets.enumerateObjects { asset, _, _ in
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// group.enter()
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// result.append(asset)
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// group.leave()
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// }
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// }
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// group.wait()
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// return result
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// }
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//
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// func syncGalleryProcess<T>(_ assets: [PHAsset], _ block: @escaping (PHAsset) -> T) -> [T] {
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// var result: [T] = []
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// let group = DispatchGroup()
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// DispatchQueue.global(qos: .userInitiated).sync {
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// for asset in assets {
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// group.enter()
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// let res = block(asset)
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// result.append(res)
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// group.leave()
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// }
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// }
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// group.wait()
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// return result
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// }
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//
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// func syncGalleryProcessImage<T>(_ asset: PHAsset, _ block: @escaping (UIImage) -> T?) -> T? {
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// var result: T?
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// let semaphore = DispatchSemaphore(value: 0)
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// DispatchQueue.global(qos: .userInitiated).sync {
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// let options = PHImageRequestOptions()
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// options.version = .original
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// options.isSynchronous = true
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// PHImageManager.default().requestImage(
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// for: asset,
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// targetSize: PHImageManagerMaximumSize,
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// contentMode: .aspectFill,
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// options: options
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// ) { image, _ in
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// if let image {
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// result = block(image)
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// } else {
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// result = nil
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// }
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// semaphore.signal()
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// }
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// }
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// semaphore.wait()
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// return result
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// }
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//
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// func syncGalleryProcessVideo<T>(_ asset: PHAsset, _ block: @escaping (AVAsset) -> T?) -> T? {
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// var result: T?
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// let semaphore = DispatchSemaphore(value: 0)
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// _ = DispatchQueue.global(qos: .userInitiated).sync {
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// PHImageManager.default().requestAVAsset(forVideo: asset, options: nil) { avAsset, _, _ in
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// if let avAsset {
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// result = block(avAsset)
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// } else {
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// result = nil
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// }
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// semaphore.signal()
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// }
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// }
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// semaphore.wait()
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// return result
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// }
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//
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// func generateVideoThumbnail(_ url: URL, _ size: CGSize) -> UIImage? {
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// let asset = AVAsset(url: url)
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// let assetImgGenerate = AVAssetImageGenerator(asset: asset)
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// assetImgGenerate.appliesPreferredTrackTransform = true
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// let time = CMTimeMakeWithSeconds(Float64(1), preferredTimescale: 600)
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// do {
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// let cgImage = try assetImgGenerate.copyCGImage(at: time, actualTime: nil)
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// let image = UIImage(cgImage: cgImage)
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// return scaleAndCropImage(image, size)
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// } catch {
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// return nil
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// }
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// }
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// }
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// import Foundation
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//
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// final class DownloadManager {
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// static let shared = DownloadManager()
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//
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// private let urlSession: URLSession
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// private let downloadQueue = DispatchQueue(label: "com.example.downloadQueue")
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// private var activeDownloads = Set<URL>()
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//
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// init() {
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// let configuration = URLSessionConfiguration.default
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// urlSession = URLSession(configuration: configuration)
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// }
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//
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// func enqueueDownload(from url: URL, to localUrl: URL, completion: @escaping (Error?) -> Void) {
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// downloadQueue.async {
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// if self.activeDownloads.contains(url) {
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// print("Download for this file is already in queue.")
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// return
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// }
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//
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// self.activeDownloads.insert(url)
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//
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// let task = self.urlSession.downloadTask(with: url) { tempLocalUrl, _, error in
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// self.downloadQueue.async {
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// self.activeDownloads.remove(url)
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//
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// guard let tempLocalUrl = tempLocalUrl, error == nil else {
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// completion(error)
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// return
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// }
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//
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// do {
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// if FileManager.default.fileExists(atPath: localUrl.path) {
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// try FileManager.default.removeItem(at: localUrl)
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// }
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// let data = try Data(contentsOf: tempLocalUrl)
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// try data.write(to: localUrl)
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// completion(nil)
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// } catch let writeError {
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// completion(writeError)
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// }
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// }
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// }
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// task.resume()
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// }
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// }
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// }
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