Add navigation settings, fix page generation

CHDataManagement/Model/Settings/NavigationSettings.swift

@@ -0,0 +1,71 @@
+import Foundation
+
+final class NavigationSettings: ObservableObject {
+
+    /// The items to show in the navigation bar
+    @Published
+    var navigationItems: [Item]
+
+    @Published
+    var german: LocalizedNavigationSettings
+
+    @Published
+    var english: LocalizedNavigationSettings
+
+    init(navigationItems: [Item], german: LocalizedNavigationSettings, english: LocalizedNavigationSettings) {
+        self.navigationItems = navigationItems
+        self.german = german
+        self.english = english
+    }
+
+    init(file: NavigationSettingsFile,
+         tags: [String : Tag],
+         pages: [String : Page],
+         files: [String : FileResource],
+         posts: [String : Post],
+         tagOverview: TagOverviewPage?) {
+        
+        #warning("Notify about missing links")
+        self.navigationItems = file.navigationItems.compactMap { raw in
+            guard let type = ItemType(rawValue: raw, posts: posts, pages: pages, tags: tags) else {
+                return nil
+            }
+            switch type {
+            case .general:
+                return nil
+            case .post(let post):
+                return post
+            case .feed:
+                return nil // TODO: Provide feed object
+            case .page(let page):
+                return page
+            case .tagPage(let tag):
+                return tag
+            case .tagOverview:
+                return tagOverview
+            }
+        }
+        self.german = LocalizedNavigationSettings(file: file.german)
+        self.english = LocalizedNavigationSettings(file: file.english)
+    }
+
+    var file: NavigationSettingsFile {
+        .init(
+            navigationItems: navigationItems.map { $0.itemType.id },
+            german: german.file,
+            english: english.file)
+    }
+}
+
+extension NavigationSettings: LocalizedItem {
+    
+}
+
+extension NavigationSettings {
+
+    static var `default`: NavigationSettings {
+        .init(navigationItems: [],
+              german: .default,
+              english: .default)
+    }
+}