Save automatically, improve mocks

CHDataManagement/Model/FileResource.swift

@@ -51,6 +51,8 @@ final class FileResource: Item, LocalizedItem {
     @Published
     var fileSize: Int? = nil
 
+    var savedData: Data?
+
     init(content: Content,
          id: String,
          isExternallyStored: Bool,
@@ -78,7 +80,7 @@ final class FileResource: Item, LocalizedItem {
     /**
      Only for bundle images
      */
-    init(resourceImage: String, type: FileType) {
+    init(content: Content, resourceImage: String, type: FileType) {
         self.type = type
         self.english = "A test image included in the bundle"
         self.german = "Ein Testbild aus dem Bundle"
@@ -89,7 +91,7 @@ final class FileResource: Item, LocalizedItem {
         self.customOutputPath = nil
         self.addedDate = Date.now
         self.modifiedDate = Date.now
-        super.init(content: .mock, id: resourceImage) // TODO: Add images to mock
+        super.init(content: content, id: resourceImage)
     }
 
     // MARK: Text
@@ -349,7 +351,7 @@ extension FileResource: CustomStringConvertible {
     }
 }
 
-extension FileResource {
+extension FileResource: StorageItem {
 
     convenience init(content: Content, id: String, data: FileResource.Data, isExternalFile: Bool) {
         self.init(
@@ -364,6 +366,7 @@ extension FileResource {
             customOutputPath: data.customOutputPath,
             addedDate: data.addedDate,
             modifiedDate: data.modifiedDate)
+        savedData = data
     }
 
     var data: Data {
@@ -379,7 +382,7 @@ extension FileResource {
     }
 
     /// This struct holds metadata about a file resource that is stored in the content folder.
-    struct Data: Codable {
+    struct Data: Codable, Equatable {
         let englishDescription: String?
         let germanDescription: String?
         let generatedImages: [String]?
@@ -389,4 +392,8 @@ extension FileResource {
         let addedDate: Date
         let modifiedDate: Date
     }
+
+    func saveToDisk(_ data: Data) -> Bool {
+        content.storage.save(fileResource: data, for: id)
+    }
 }