Reorganize headers, page templates

WebsiteGenerator/Templates/Pages/HeaderTemplate.swift

@@ -0,0 +1,32 @@
+import Foundation
+
+protocol HeaderTemplate {
+
+    func generate(_ content: [ThumbnailKey : String], shouldIndent: Bool) throws -> String
+}
+
+enum HeaderKey: String, CaseIterable {
+    case backLink = "BACK_LINK"
+    case title = "TITLE"
+    case subtitle = "SUBTITLE"
+    case titleText = "TITLE_TEXT"
+    case date = "DATE"
+}
+
+struct CenteredHeaderTemplate: Template {
+
+    typealias Key = HeaderKey
+
+    let raw: String
+
+    static let templateName = "header-center.html"
+}
+
+struct LeftHeaderTemplate: Template {
+
+    typealias Key = HeaderKey
+
+    let raw: String
+
+    static let templateName = "header-left.html"
+}

WebsiteGenerator/Templates/Pages/OverviewPageTemplate.swift

@@ -1,19 +0,0 @@
-import Foundation
-
-struct OverviewPageTemplate: Template {
-
-    enum Key: String, CaseIterable {
-        case head = "HEAD"
-        case topBar = "TOP_BAR"
-        case backLink = "BACK_LINK"
-        case title = "TITLE"
-        case subtitle = "SUBTITLE"
-        case titleText = "TITLE_TEXT"
-        case sections = "SECTIONS"
-        case footer = "FOOTER"
-    }
-
-    let raw: String
-
-    static let templateName = "overview-page.html"
-}

WebsiteGenerator/Templates/Pages/PageTemplate.swift

@@ -1,14 +1,12 @@
 import Foundation
 
-struct ContentPageTemplate: Template {
+struct PageTemplate: Template {
 
     enum Key: String, CaseIterable {
         case head = "HEAD"
         case topBar = "TOP_BAR"
-        case backLink = "BACK_LINK"
-        case title = "TITLE"
-        case subtitle = "SUBTITLE"
-        case date = "DATE"
+        case contentClass = "CONTENT_CLASS"
+        case header = "HEADER"
         case content = "CONTENT"
         case previousPageLinkText = "PREV_TEXT"
         case previousPageUrl = "PREV_LINK"