23cbf82353
* iOS switch from file cache to memory cache and use last_picture_update to update the avatar if needed * Android switch from file cache to memory cache and use last_picture_update to update the avatar if needed, split function to multiple files and catch potential exceptions
63 lines
2.1 KiB
Swift
63 lines
2.1 KiB
Swift
//
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// FileCache.swift
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// Gekidou
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//
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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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//
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import Foundation
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import UIKit
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public class FileCache: NSObject {
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private var cacheURL: URL?
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@objc public static let `default` = FileCache()
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override private init() {
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super.init()
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let filemgr = FileManager.default
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let appGroupId = Bundle.main.infoDictionary!["AppGroupIdentifier"] as! String
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let containerUrl = filemgr.containerURL(forSecurityApplicationGroupIdentifier: appGroupId)
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if let url = containerUrl,
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let cacheURL = url.appendingPathComponent("Library", isDirectory: true) as URL? {
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self.cacheURL = cacheURL.appendingPathComponent("Caches", isDirectory: true)
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self.createDirectoryIfNeeded(directory: self.cacheURL)
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}
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}
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private func createDirectoryIfNeeded(directory: URL?) {
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var isDirectory = ObjCBool(false)
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if let cachePath = directory?.path {
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let exists = FileManager.default.fileExists(atPath: cachePath, isDirectory: &isDirectory)
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if !exists && !isDirectory.boolValue {
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try? FileManager.default.createDirectory(atPath: cachePath, withIntermediateDirectories: true, attributes: nil)
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}
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}
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}
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private func getUrlImageFor(serverUrl: String, userId: String) -> URL? {
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guard let url = cacheURL else {return nil}
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let serverCacheURL = url.appendingPathComponent(serverUrl.toUrlSafeBase64Encode(), isDirectory: true)
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createDirectoryIfNeeded(directory: serverCacheURL)
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return serverCacheURL.appendingPathComponent(userId + ".png")
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}
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public func getProfileImage(serverUrl: String, userId: String) -> UIImage? {
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guard let url = getUrlImageFor(serverUrl: serverUrl, userId: userId) else { return nil }
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return UIImage(contentsOfFile: url.path)
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}
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public func saveProfileImage(serverUrl: String, userId: String, imageData: Data?) {
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do {
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guard let data = imageData,
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let url = getUrlImageFor(serverUrl: serverUrl, userId: userId)
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else { return }
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try data.write(to: url)
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} catch let error {
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print("Erro saving image. \(error)")
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}
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}
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}
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