fuwari/src/utils/content-utils.ts

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2.1 KiB
TypeScript

import {CollectionEntry, getCollection} from "astro:content";
export async function getSortedPosts() {
const allBlogPosts = await getCollection("posts");
const sorted = allBlogPosts.sort((a, b) => {
const dateA = new Date(a.data.published);
const dateB = new Date(b.data.published);
return dateA > dateB ? -1 : 1;
});
for (let i = 1; i < sorted.length; i++) {
sorted[i].data.nextSlug = sorted[i - 1].slug;
sorted[i].data.nextTitle = sorted[i - 1].data.title;
}
for (let i = 0; i < sorted.length - 1; i++) {
sorted[i].data.prevSlug = sorted[i + 1].slug;
sorted[i].data.prevTitle = sorted[i + 1].data.title;
}
return sorted;
}
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]++;
})
});
// sort tags
const keys: string[] = Object.keys(countMap).sort(function (a, b) {
var textA = a.toLowerCase();
var textB = b.toLowerCase();
if (textA < textB) {
return -1;
}
if (textA > textB) {
return 1;
}
return 0;
});
return keys.map((key) => ({name: key, count: countMap[key]}));
}
type Category = {
name: string;
count: number;
children: CategoryMap;
}
export type CategoryMap = { [key: string]: Category };
export async function getCategoryMap(): Promise<CategoryMap> {
const allBlogPosts = await getCollection("posts");
let root: CategoryMap = {};
allBlogPosts.map((post) => {
let current = root;
if (!post.data.categories)
return;
for (const c of post.data.categories) {
if (!current[c]) current[c] = {name: c, count: 0, children: {}};
current[c].count++;
current = current[c].children;
}
});
return root;
}