From a6a2b37c9a77b3b277c0f7636b82d1a61f0d096e Mon Sep 17 00:00:00 2001
From: Stefan Imhoff <stefan@imhoff.name>
Date: Wed, 26 Apr 2023 18:30:56 +0200
Subject: [PATCH] feat: add pagination to Haiku detail pages and sort entries

---
 src/pages/haiku/[...slug].astro | 26 +++++++++++++++++++++-----
 src/utils/sort-by-date.ts       |  3 +++
 2 files changed, 24 insertions(+), 5 deletions(-)
 create mode 100644 src/utils/sort-by-date.ts

diff --git a/src/pages/haiku/[...slug].astro b/src/pages/haiku/[...slug].astro
index e2890bf..d91546f 100644
--- a/src/pages/haiku/[...slug].astro
+++ b/src/pages/haiku/[...slug].astro
@@ -1,19 +1,29 @@
 ---
 import { getCollection } from 'astro:content';
 
+import { sortByDate } from '../../utils/sort-by-date';
+
 import BaseLayout from '../../layouts/BaseLayout.astro';
 import PageHeader from '../../components/PageHeader.astro';
-import { Verse } from '../../components';
+import { Pagination, Verse } from '../../components';
 
 export async function getStaticPaths() {
 	const haikuEntries = await getCollection('haiku');
-	return haikuEntries.map((entry) => ({
+	const numberOfPages = haikuEntries.length;
+	haikuEntries.sort(sortByDate).reverse();
+
+	return haikuEntries.map((entry, index) => ({
 		params: { slug: entry.slug },
-		props: { entry },
+		props: {
+			entry,
+			nextPost:
+				index + 1 === numberOfPages ? { slug: null, data: null } : haikuEntries[index + 1],
+			prevPost: index === 0 ? {} : haikuEntries[index - 1],
+		},
 	}));
 }
 
-const { entry } = Astro.props;
+const { entry, prevPost, nextPost } = Astro.props;
 ---
 
 <BaseLayout title={`Haiku ${entry.slug}`} header={false} footer={false}>
@@ -24,7 +34,7 @@ const { entry } = Astro.props;
 			backLink="/haiku/"
 		/>
 		<div
-			class="col-span-full row-start-1 row-end-3 grid w-full grid-cols-haiku haiku:grid-cols-haiku-xl"
+			class="haiku:grid-cols-haiku-xl col-span-full row-start-1 row-end-3 grid w-full grid-cols-haiku"
 		>
 			<div class="grid h-full w-full items-center">
 				<Verse
@@ -42,4 +52,10 @@ const { entry } = Astro.props;
 			</div>
 		</div>
 	</div>
+	<Pagination
+		nextText={`Haiku ${nextPost.slug}`}
+		nextUrl={nextPost.slug && `/haiku/${nextPost.slug}`}
+		previousText={`Haiku ${prevPost.slug}`}
+		previousUrl={prevPost.slug && `/haiku/${prevPost.slug}`}
+	/>
 </BaseLayout>
diff --git a/src/utils/sort-by-date.ts b/src/utils/sort-by-date.ts
new file mode 100644
index 0000000..8ace8d4
--- /dev/null
+++ b/src/utils/sort-by-date.ts
@@ -0,0 +1,3 @@
+export const sortByDate = (a: any, b: any) => {
+	return Date.parse(b.data.date.toISOString()) - Date.parse(a.data.date.toISOString());
+};