feat: initial commit

(cherry picked from commit 44c4d7b9521fe449e61edc614446195861932f8c)

src/utils/content-utils.ts

@@ -0,0 +1,32 @@
+import {getCollection} from "astro:content";
+
+export async function getSortedPosts() {
+    const allBlogPosts = await getCollection("posts");
+    return allBlogPosts.sort((a, b) => {
+        const dateA = new Date(a.data.pubDate);
+        const dateB = new Date(b.data.pubDate);
+        return dateA > dateB ? -1 : 1;
+    });
+}
+
+export function getPostUrlBySlug(slug: string): string {
+    return `/posts/${slug}`;
+}
+
+export async function getTagList(): Promise<{ name: string; count: number }[]> {
+    const allBlogPosts = await getCollection("posts");
+
+    const countMap: { [key: string]: number } = {};
+    allBlogPosts.map((post) => {
+        post.data.tags.map((tag: string) => {
+            if (!countMap[tag]) countMap[tag] = 0;
+            countMap[tag]++;
+        })
+    });
+
+    // 获取对象的所有键并按字典顺序排序
+    const keys: string[] = Object.keys(countMap).sort();
+
+    // 使用排序后的键构建包含 key 和 value 的数组
+    return keys.map((key) => ({name: key, count: countMap[key]}));
+}