From 64d09691cec7a4e4d55b9e07ba13147088ce27ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vitor=20Ter=C3=A7ariol=20Rangel?= <rangel.final@gmail.com>
Date: Wed, 20 Sep 2023 17:39:52 -0300
Subject: [PATCH] Add sitemap (#10)

---
 src/app/sitemap.ts        | 11 +++++++++++
 src/services/checklist.ts |  3 +++
 2 files changed, 14 insertions(+)
 create mode 100644 src/app/sitemap.ts

diff --git a/src/app/sitemap.ts b/src/app/sitemap.ts
new file mode 100644
index 0000000..44c0788
--- /dev/null
+++ b/src/app/sitemap.ts
@@ -0,0 +1,11 @@
+import { MetadataRoute } from "next";
+import { ChecklistService } from "@/services/checklist";
+
+export default function sitemap(): MetadataRoute.Sitemap {
+    const checklistPaths = ChecklistService.getInstance().getChecklistFiles();
+
+    return checklistPaths.map(({ slug, lang, lastModified }) => ({
+        url: `https://devchecklists.com/${lang}/checklist/${slug}`,
+        lastModified,
+    }));
+}
diff --git a/src/services/checklist.ts b/src/services/checklist.ts
index d5ec93f..1ed6a0b 100644
--- a/src/services/checklist.ts
+++ b/src/services/checklist.ts
@@ -38,6 +38,7 @@ interface ChecklistFile {
     slug: string;
     path: string;
     lang: string;
+    lastModified: Date;
 }
 
 export interface Checklist {
@@ -273,6 +274,7 @@ export class ChecklistService {
                     files.push({
                         slug: checklistFolder,
                         path: checklistFilePath,
+                        lastModified: checklistFileStat.mtime,
                         lang: "en",
                     });
                     continue;
@@ -291,6 +293,7 @@ export class ChecklistService {
                 files.push({
                     slug: checklistFolder,
                     path: checklistFilePath,
+                    lastModified: checklistFileStat.mtime,
                     lang,
                 });
             }