Notifications (#275)

ElementX/Sources/Other/Extensions/FileManager.swift

@@ -0,0 +1,34 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+extension FileManager {
+    func directoryExists(at url: URL) -> Bool {
+        var isDirectory: ObjCBool = false
+        guard fileExists(atPath: url.path(), isDirectory: &isDirectory) else {
+            return false
+        }
+        return isDirectory.boolValue
+    }
+
+    func createDirectoryIfNeeded(at url: URL, withIntermediateDirectories: Bool = true) throws {
+        guard !directoryExists(at: url) else {
+            return
+        }
+        try createDirectory(at: url, withIntermediateDirectories: withIntermediateDirectories)
+    }
+}

ElementX/Sources/Other/Extensions/ImageCache.swift

@@ -23,4 +23,10 @@ extension ImageCache {
         result.diskStorage.config.sizeLimit = 1
         return result
     }
+
+    static var onlyOnDisk: ImageCache {
+        let result = ImageCache.default
+        result.memoryStorage.config.totalCostLimit = 1
+        return result
+    }
 }

ElementX/Sources/Other/Extensions/UIDevice.swift

@@ -23,6 +23,6 @@ extension UIDevice {
     }
 
     var initialDisplayName: String {
-        ElementL10n.defaultSessionDisplayName(ElementInfoPlist.cfBundleDisplayName)
+        ElementL10n.defaultSessionDisplayName(InfoPlistReader.target.bundleDisplayName)
     }
 }

ElementX/Sources/Other/Extensions/URL.swift

@@ -24,4 +24,33 @@ extension URL {
         
         self = url
     }
+
+    /// The URL of the primary app group container.
+    static var appGroupContainerDirectory: URL {
+        guard let url = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: InfoPlistReader.target.appGroupIdentifier) else {
+            fatalError("Should always be able to retrieve the container directory")
+        }
+        return url
+    }
+
+    /// The base directory where all session data is stored.
+    static var sessionsBaseDirectory: URL {
+        let url = cacheBaseDirectory
+            .appendingPathComponent("Sessions", isDirectory: true)
+
+        try? FileManager.default.createDirectoryIfNeeded(at: url)
+
+        return url
+    }
+
+    /// The base directory where all cache is stored.
+    static var cacheBaseDirectory: URL {
+        let url = appGroupContainerDirectory
+            .appendingPathComponent("Library", isDirectory: true)
+            .appendingPathComponent("Caches", isDirectory: true)
+
+        try? FileManager.default.createDirectoryIfNeeded(at: url)
+
+        return url
+    }
 }