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add pagination #73

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add pagination #73

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b041c3d
implemented pagination
ij5 Aug 28, 2022
9b861ef
fixed arrow color
ij5 Aug 28, 2022
f22dc0a
fixed arrow is showing at index 0
ij5 Aug 28, 2022
f5e19d4
merge filterPosts to getPostPage
ij5 Aug 28, 2022
e5188bf
fixed tags pagination bug
ij5 Aug 28, 2022
e1afe16
fixed pagination bug when includes tag
ij5 Aug 28, 2022
5bf53c6
Merge branch 'denoland:main' into main
ij5 Aug 29, 2022
1bec7fc
fixed formatting
ij5 Aug 29, 2022
20695b4
Merge branch 'main' of github.com:ij5/deno_blog
ij5 Aug 29, 2022
7866e99
fixed sort by published date bug in pagination
ij5 Aug 29, 2022
16fe4eb
update formatting
ij5 Aug 29, 2022
1d28638
merged duplicate code
ij5 Sep 1, 2022
51d7829
use tag instead of searchParams
ij5 Sep 1, 2022
5aa4f69
Changed getPostsPage to getPostsByPage
ij5 Sep 1, 2022
cc79a5e
fixed fmt
ij5 Sep 1, 2022
62d2086
Merge branch 'denoland:main' into main
ij5 Nov 25, 2022
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56 changes: 54 additions & 2 deletions blog.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ import type {
export { Fragment, h };

const IS_DEV = Deno.args.includes("--dev") && "watchFs" in Deno;
const POSTS = new Map<string, Post>();
let POSTS = new Map<string, Post>();
const HMR_SOCKETS: Set<WebSocket> = new Set();

const HMR_CLIENT = `let socket;
Expand Down Expand Up @@ -199,6 +199,12 @@ async function loadContent(blogDirectory: string, isDev: boolean) {
}
}

POSTS = new Map(
Array.from(POSTS).sort(([, a], [, b]) =>
b.publishDate.getTime() - a.publishDate.getTime()
),
);

if (isDev) {
watchForChanges(postsDirectory).catch(() => {});
}
Expand Down Expand Up @@ -344,7 +350,39 @@ export async function handler(
}
}

if (pathname === "/" && searchParams.get("page")?.match(/^[0-9]+$/)) {
const index = Number(searchParams.get("page"));
const tagPosts = filterPosts(POSTS, searchParams);
return html({
...sharedHtmlOptions,
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title: blogState.title ?? "My Blog",
meta: {
"description": blogState.description,
"og:title": blogState.title,
"og:description": blogState.description,
"og:image": ogImage ?? blogState.cover,
"twitter:title": blogState.title,
"twitter:description": blogState.description,
"twitter:image": ogImage ?? blogState.cover,
"twitter:card": ogImage ? twitterCard : undefined,
},
styles: [
...(blogState.style ? [blogState.style] : []),
],
body: (
<Index
state={blogState}
index={index}
postsLength={tagPosts.size}
posts={getPostsPage(tagPosts, index)}
searchParams={searchParams}
/>
),
});
}

if (pathname === "/") {
const tagPosts = filterPosts(POSTS, searchParams);
return html({
...sharedHtmlOptions,
title: blogState.title ?? "My Blog",
Expand All @@ -364,7 +402,10 @@ export async function handler(
body: (
<Index
state={blogState}
posts={filterPosts(POSTS, searchParams)}
postsLength={tagPosts.size}
posts={getPostsPage(tagPosts, 0)}
index={0}
searchParams={searchParams}
/>
),
});
Expand Down Expand Up @@ -523,6 +564,17 @@ export function redirects(redirectMap: Record<string, string>): BlogMiddleware {
};
}

function getPostsPage(
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posts: Map<string, Post>,
index: number,
) {
const i = Math.round(index);
if (i < 0) return new Map();
return new Map(
Array.from(posts.entries()).slice(i * 10, i * 10 + 10),
);
}

function filterPosts(
posts: Map<string, Post>,
searchParams: URLSearchParams,
Expand Down
87 changes: 86 additions & 1 deletion components.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -17,19 +17,71 @@ const socialAppIcons = new Map([
["linkedin.com", IconLinkedin],
]);

interface PaginationProps {
index: number;
type: "forward" | "backward" | "both";
tag: string | null;
}
function Pagination({ index, type, tag }: PaginationProps) {
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the UI is not good, i will add a mockup later

let t;
if (tag) t = "&tag=" + tag;
else t = "";
const page = (
<div class="mt-3 flex gap-2 items-center justify-center">
{(type === "backward" || type === "both")
? (
<a
href={`/?page=${index - 1}${t}`}
class="relative flex items-center justify-center w-8 h-8 rounded-full bg-gray-600/10 dark:bg-gray-400/10 text-gray-700 dark:text-gray-400 hover:bg-gray-600/15 dark:hover:bg-gray-400/15 hover:text-black dark:hover:text-white transition-colors group"
>
<IconPrevious />
</a>
)
: ""}
{(type === "forward" || type === "both")
? (
<a
href={`/?page=${index + 1}${t}`}
class="relative flex items-center justify-center w-8 h-8 rounded-full bg-gray-600/10 dark:bg-gray-400/10 text-gray-700 dark:text-gray-400 hover:bg-gray-600/15 dark:hover:bg-gray-400/15 hover:text-black dark:hover:text-white transition-colors group"
>
<IconNext />
</a>
)
: ""}
</div>
);
return page;
}

interface IndexProps {
state: BlogState;
posts: Map<string, Post>;
index: number;
postsLength: number;
searchParams: URLSearchParams;
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}

export function Index({ state, posts }: IndexProps) {
export function Index(
{ state, posts, index, postsLength, searchParams }: IndexProps,
) {
const postIndex = [];
for (const [_key, post] of posts.entries()) {
postIndex.push(post);
}
postIndex.sort(
(a, b) => (b.publishDate?.getTime() ?? 0) - (a.publishDate?.getTime() ?? 0),
);
let page;
const tag = searchParams.get("tag");
if ((index + 1) * 10 >= postsLength && index !== 0) {
page = <Pagination tag={tag} index={index} type={"backward"} />;
} else if (index === 0 && (index + 1) * 10 >= postsLength) {
page = "";
} else if (index === 0) {
page = <Pagination tag={tag} index={index} type={"forward"} />;
} else {
page = <Pagination tag={tag} index={index} type={"both"} />;
}

return (
<div class="home">
Expand Down Expand Up @@ -114,6 +166,7 @@ export function Index({ state, posts }: IndexProps) {
/>
))}
</div>
{page}

{state.footer || <Footer author={state.author} />}
</div>
Expand Down Expand Up @@ -354,6 +407,38 @@ function IconExternalLink() {
);
}

function IconPrevious() {
return (
<svg
className="inline-block w-5 h-5"
viewBox="0 0 512 512"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<path
fill="currentColor"
d="M257.5 445.1l-22.2 22.2c-9.4 9.4-24.6 9.4-33.9 0L7 273c-9.4-9.4-9.4-24.6 0-33.9L201.4 44.7c9.4-9.4 24.6-9.4 33.9 0l22.2 22.2c9.5 9.5 9.3 25-.4 34.3L136.6 216H424c13.3 0 24 10.7 24 24v32c0 13.3-10.7 24-24 24H136.6l120.5 114.8c9.8 9.3 10 24.8.4 34.3z"
/>
</svg>
);
}

function IconNext() {
return (
<svg
className="inline-block w-5 h-5"
viewBox="0 0 512 512"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<path
fill="currentColor"
d="M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z"
/>
</svg>
);
}

function IconGithub() {
return (
<svg
Expand Down