From 5ec0502eabbc1abb630400285e67a4a452c772b9 Mon Sep 17 00:00:00 2001
From: Christoph Hagen <github@christophhagen.de>
Date: Tue, 16 Aug 2022 12:30:50 +0200
Subject: [PATCH] Add option to use custom header code

---
 WebsiteGenerator/Content/Page+Metadata.swift    | 16 +++++++++++++++-
 WebsiteGenerator/Generators/PageGenerator.swift |  4 +++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/WebsiteGenerator/Content/Page+Metadata.swift b/WebsiteGenerator/Content/Page+Metadata.swift
index 9f90a50..073e821 100644
--- a/WebsiteGenerator/Content/Page+Metadata.swift
+++ b/WebsiteGenerator/Content/Page+Metadata.swift
@@ -20,6 +20,14 @@ extension Page {
 
         let requiredFiles: [String]
 
+        /**
+         Indicate that no header should be generated automatically.
+
+         This option assumes that custom header code is present in the page source files
+         - Note: If not specified, this property defaults to `false`.
+         */
+        let useCustomHeader: Bool
+
         #warning("Add files for which errors are ignored when missing")
     }
 }
@@ -36,7 +44,8 @@ extension Page.Metadata: Metadata {
             isDraft: true,
             sortIndex: 0,
             languages: [.initial],
-            requiredFiles: [])
+            requiredFiles: [],
+            useCustomHeader: false)
     }
 }
 
@@ -54,6 +63,7 @@ extension Page.Metadata: Codable {
         case sortIndex
         case languages
         case requiredFiles
+        case useCustomHeader
     }
 
     func encode(to encoder: Encoder) throws {
@@ -71,6 +81,9 @@ extension Page.Metadata: Codable {
         if !requiredFiles.isEmpty {
             try container.encode(requiredFiles, forKey: .requiredFiles)
         }
+        if useCustomHeader {
+            try container.encode(true, forKey: .useCustomHeader)
+        }
     }
 
     init(from decoder: Decoder) throws {
@@ -89,5 +102,6 @@ extension Page.Metadata: Codable {
             self.endDate = nil
         }
         self.requiredFiles = try container.decodeIfPresent([String].self, forKey: .requiredFiles) ?? []
+        self.useCustomHeader = try container.decodeIfPresent(Bool.self, forKey: .useCustomHeader) ?? false
     }
 }
diff --git a/WebsiteGenerator/Generators/PageGenerator.swift b/WebsiteGenerator/Generators/PageGenerator.swift
index c8a5345..dd7e89f 100644
--- a/WebsiteGenerator/Generators/PageGenerator.swift
+++ b/WebsiteGenerator/Generators/PageGenerator.swift
@@ -35,7 +35,9 @@ struct PageGenerator {
         content[.head] = try makeHead(page: page, language: language)
         content[.topBar] = factory.topBar.generate(section: page.sectionId, languageButton: nextLanguage)
         content[.contentClass] = "content"
-        content[.header] = makeHeader(page: page.metadata, metadata: metadata, language: language, backText: backText)
+        if page.metadata.useCustomHeader {
+            content[.header] = makeHeader(page: page.metadata, metadata: metadata, language: language, backText: backText)
+        }
         content[.content] = try makeContent(page: page, language: language, url: inputContentUrl)
         content[.previousPageLinkText] = previousPage.unwrapped { factory.makePrevText($0.text) }
         content[.previousPageUrl] = previousPage?.link