Custom page link texts, optional post title

CHDataManagement/Model/LocalizedPost.swift

@@ -6,7 +6,7 @@ final class LocalizedPost: ObservableObject {
     unowned let content: Content
 
     @Published
-    var title: String
+    var title: String?
 
     @Published
     var text: String
@@ -17,6 +17,10 @@ final class LocalizedPost: ObservableObject {
     @Published
     var images: [FileResource]
 
+    /// The text to show for the link to the `linkedPage`
+    @Published
+    var pageLinkText: String?
+
     @Published
     var linkPreviewImage: FileResource?
 
@@ -31,18 +35,50 @@ final class LocalizedPost: ObservableObject {
          text: String,
          lastModified: Date? = nil,
          images: [FileResource] = [],
+         pageLinkText: String? = nil,
          linkPreviewImage: FileResource? = nil,
          linkPreviewTitle: String? = nil,
          linkPreviewDescription: String? = nil) {
         self.content = content
-        self.title = title ?? ""
+        self.title = title
         self.text = text
         self.lastModified = lastModified
         self.images = images
+        self.pageLinkText = pageLinkText
         self.linkPreviewImage = linkPreviewImage
         self.linkPreviewTitle = linkPreviewTitle
         self.linkPreviewDescription = linkPreviewDescription
     }
+
+    init(content: Content, file: LocalizedPostFile, images: [String : FileResource]) {
+        self.content = content
+        self.title = file.title
+        self.text = file.content
+        self.lastModified = file.lastModifiedDate
+        self.images = file.images.compactMap { images[$0] }
+        self.pageLinkText = file.pageLinkText
+        self.linkPreviewImage = file.linkPreviewImage.map { images[$0] }
+        self.linkPreviewTitle = file.linkPreviewTitle
+        self.linkPreviewDescription = file.linkPreviewDescription
+    }
+
+    var postFile: LocalizedPostFile {
+        .init(images: images.map { $0.id },
+              title: title,
+              content: text,
+              lastModifiedDate: lastModified,
+              pageLinkText: pageLinkText,
+              linkPreviewImage: linkPreviewImage?.id,
+              linkPreviewTitle: linkPreviewTitle,
+              linkPreviewDescription: linkPreviewDescription)
+    }
+
+    func contains(_ string: String) -> Bool {
+        if let title, title.contains(string) {
+            return true
+        }
+        return text.contains(string)
+    }
 }
 
 extension LocalizedPost: LinkPreviewItem {