Files
BelgianBitcoinEmbassy/frontend/app/blog/[slug]/BlogPostClient.tsx
Michilis 76210db03d first commit
Made-with: Cursor
2026-04-01 02:46:53 +00:00

401 lines
14 KiB
TypeScript

"use client";
import { useState, useEffect, useCallback } from "react";
import Link from "next/link";
import { ArrowLeft, Heart, Send } from "lucide-react";
import ReactMarkdown from "react-markdown";
import remarkGfm from "remark-gfm";
import { api } from "@/lib/api";
import { formatDate } from "@/lib/utils";
import { hasNostrExtension, getPublicKey, signEvent, publishEvent, shortenPubkey, fetchNostrProfile, type NostrProfile } from "@/lib/nostr";
import { Navbar } from "@/components/public/Navbar";
import { Footer } from "@/components/public/Footer";
import type { Components } from "react-markdown";
interface Post {
id: string;
slug: string;
title: string;
content: string;
excerpt?: string;
authorName?: string;
authorPubkey?: string;
publishedAt?: string;
createdAt?: string;
nostrEventId?: string;
categories?: { category: { id: string; name: string; slug: string } }[];
}
interface NostrReply {
id: string;
pubkey: string;
content: string;
created_at: number;
}
const markdownComponents: Components = {
h1: ({ children }) => (
<h1 className="text-3xl font-bold text-on-surface mb-4 mt-10">{children}</h1>
),
h2: ({ children }) => (
<h2 className="text-2xl font-bold text-on-surface mb-4 mt-8">{children}</h2>
),
h3: ({ children }) => (
<h3 className="text-xl font-bold text-on-surface mb-3 mt-6">{children}</h3>
),
h4: ({ children }) => (
<h4 className="text-lg font-semibold text-on-surface mb-2 mt-4">{children}</h4>
),
p: ({ children }) => (
<p className="text-on-surface-variant leading-relaxed mb-6">{children}</p>
),
a: ({ href, children }) => (
<a
href={href}
className="text-primary hover:underline"
target="_blank"
rel="noopener noreferrer"
>
{children}
</a>
),
ul: ({ children }) => (
<ul className="list-disc ml-6 mb-6 space-y-2 text-on-surface-variant">{children}</ul>
),
ol: ({ children }) => (
<ol className="list-decimal ml-6 mb-6 space-y-2 text-on-surface-variant">{children}</ol>
),
li: ({ children }) => (
<li className="leading-relaxed">{children}</li>
),
blockquote: ({ children }) => (
<blockquote className="border-l-4 border-primary/30 pl-4 italic text-on-surface-variant mb-6">
{children}
</blockquote>
),
code: ({ className, children }) => {
const isBlock = className?.includes("language-");
if (isBlock) {
return (
<code className={`${className} block`}>
{children}
</code>
);
}
return (
<code className="bg-surface-container-high px-2 py-1 rounded text-sm text-primary">
{children}
</code>
);
},
pre: ({ children }) => (
<pre className="bg-surface-container-highest p-4 rounded-lg overflow-x-auto mb-6 text-sm">
{children}
</pre>
),
img: ({ src, alt }) => (
<img src={src} alt={alt || ""} className="rounded-lg max-w-full mb-6" />
),
hr: () => <hr className="border-surface-container-high my-8" />,
table: ({ children }) => (
<div className="overflow-x-auto mb-6">
<table className="w-full text-left text-on-surface-variant">{children}</table>
</div>
),
th: ({ children }) => (
<th className="px-4 py-2 font-semibold text-on-surface bg-surface-container-high">
{children}
</th>
),
td: ({ children }) => (
<td className="px-4 py-2">{children}</td>
),
};
function ArticleSkeleton() {
const widths = [85, 92, 78, 95, 88, 72, 90, 83];
return (
<div className="animate-pulse max-w-3xl mx-auto">
<div className="flex gap-2 mb-6">
<div className="h-5 w-20 bg-surface-container-high rounded-full" />
<div className="h-5 w-16 bg-surface-container-high rounded-full" />
</div>
<div className="h-12 w-3/4 bg-surface-container-high rounded mb-4" />
<div className="h-12 w-1/2 bg-surface-container-high rounded mb-8" />
<div className="h-5 w-48 bg-surface-container-high rounded mb-16" />
<div className="space-y-4">
{widths.map((w, i) => (
<div
key={i}
className="h-4 bg-surface-container-high rounded"
style={{ width: `${w}%` }}
/>
))}
</div>
</div>
);
}
export default function BlogPostClient({ slug }: { slug: string }) {
const [post, setPost] = useState<Post | null>(null);
const [loading, setLoading] = useState(true);
const [error, setError] = useState<string | null>(null);
const [liked, setLiked] = useState(false);
const [likeCount, setLikeCount] = useState(0);
const [comment, setComment] = useState("");
const [replies, setReplies] = useState<NostrReply[]>([]);
const [hasNostr, setHasNostr] = useState(false);
const [submitting, setSubmitting] = useState(false);
const [authorProfile, setAuthorProfile] = useState<NostrProfile | null>(null);
useEffect(() => {
setHasNostr(hasNostrExtension());
}, []);
useEffect(() => {
if (!slug) return;
setLoading(true);
setError(null);
api
.getPost(slug)
.then((data) => {
setPost(data);
if (data?.authorPubkey) {
fetchNostrProfile(data.authorPubkey)
.then((profile) => setAuthorProfile(profile))
.catch(() => {});
}
})
.catch((err) => setError(err.message))
.finally(() => setLoading(false));
}, [slug]);
useEffect(() => {
if (!slug) return;
api.getPostReactions(slug)
.then((data) => setLikeCount(data.count))
.catch(() => {});
api.getPostReplies(slug)
.then((data) => setReplies(data.replies || []))
.catch(() => {});
}, [slug]);
const handleLike = useCallback(async () => {
if (liked || !post?.nostrEventId || !hasNostr) return;
try {
const pubkey = await getPublicKey();
const reactionEvent = {
kind: 7,
created_at: Math.floor(Date.now() / 1000),
tags: [["e", post.nostrEventId], ["p", post.authorPubkey || ""]],
content: "+",
pubkey,
};
const signedReaction = await signEvent(reactionEvent);
await publishEvent(signedReaction);
setLiked(true);
setLikeCount((c) => c + 1);
} catch {
// User rejected or extension unavailable
}
}, [liked, post, hasNostr]);
const handleComment = useCallback(async () => {
if (!comment.trim() || !post?.nostrEventId || !hasNostr) return;
setSubmitting(true);
try {
const pubkey = await getPublicKey();
const replyEvent = {
kind: 1,
created_at: Math.floor(Date.now() / 1000),
tags: [["e", post.nostrEventId, "", "reply"], ["p", post.authorPubkey || ""]],
content: comment.trim(),
pubkey,
};
const signed = await signEvent(replyEvent);
await publishEvent(signed);
setReplies((prev) => [
...prev,
{
id: signed.id || Date.now().toString(),
pubkey,
content: comment.trim(),
created_at: Math.floor(Date.now() / 1000),
},
]);
setComment("");
} catch {
// User rejected or extension unavailable
} finally {
setSubmitting(false);
}
}, [comment, post, hasNostr]);
const categories = post?.categories?.map((c) => c.category) || [];
return (
<>
<Navbar />
<div className="min-h-screen">
<div className="max-w-3xl mx-auto px-8 pt-12 pb-24">
<Link
href="/blog"
className="inline-flex items-center gap-2 text-on-surface-variant hover:text-primary transition-colors mb-12 text-sm font-medium"
>
<ArrowLeft size={16} />
Back to Blog
</Link>
{loading && <ArticleSkeleton />}
{error && (
<div className="bg-error-container/20 text-error rounded-xl p-6">
Failed to load post: {error}
</div>
)}
{!loading && !error && post && (
<>
<header className="mb-16">
{categories.length > 0 && (
<div className="flex flex-wrap gap-2 mb-6">
{categories.map((cat) => (
<span
key={cat.id}
className="px-3 py-1 text-xs font-bold uppercase tracking-widest text-primary bg-primary/10 rounded-full"
>
{cat.name}
</span>
))}
</div>
)}
<h1 className="text-4xl md:text-5xl font-black tracking-tight leading-tight mb-6">
{post.title}
</h1>
<div className="flex items-center gap-3 text-sm text-on-surface-variant/60">
{(authorProfile || post.authorName || post.authorPubkey) && (
<div className="flex items-center gap-2.5">
{authorProfile?.picture && (
<img
src={authorProfile.picture}
alt={authorProfile.name || post.authorName || "Author"}
className="w-8 h-8 rounded-full object-cover bg-zinc-800 shrink-0"
onError={(e) => { (e.target as HTMLImageElement).style.display = "none"; }}
/>
)}
<span className="font-medium text-on-surface-variant">
{authorProfile?.name || post.authorName || shortenPubkey(post.authorPubkey!)}
</span>
</div>
)}
{(post.publishedAt || post.createdAt) && (
<>
{(authorProfile || post.authorName || post.authorPubkey) && (
<span className="text-on-surface-variant/30">·</span>
)}
<span>
{formatDate(post.publishedAt || post.createdAt!)}
</span>
</>
)}
</div>
</header>
<article className="mb-16">
<ReactMarkdown
remarkPlugins={[remarkGfm]}
components={markdownComponents}
>
{post.content}
</ReactMarkdown>
</article>
<section className="bg-surface-container-low rounded-xl p-8 mb-16">
<div className="flex items-center gap-6 mb-8">
<button
onClick={handleLike}
disabled={!hasNostr}
title={hasNostr ? "Like this post" : "Install a Nostr extension to interact"}
className={`flex items-center gap-2 px-4 py-2 rounded-lg transition-colors ${
liked
? "bg-primary/20 text-primary"
: hasNostr
? "bg-surface-container-high text-on-surface hover:bg-surface-bright"
: "bg-surface-container-high text-on-surface/40 cursor-not-allowed"
}`}
>
<Heart size={18} fill={liked ? "currentColor" : "none"} />
<span className="font-semibold">{likeCount}</span>
</button>
{!hasNostr && (
<span className="text-on-surface-variant/50 text-xs">
Install a Nostr extension to like and comment
</span>
)}
</div>
<h3 className="text-lg font-bold mb-6">
Comments {replies.length > 0 && `(${replies.length})`}
</h3>
{hasNostr && (
<div className="flex gap-3 mb-8">
<textarea
value={comment}
onChange={(e) => setComment(e.target.value)}
placeholder="Share your thoughts..."
rows={3}
className="flex-1 bg-surface-container-highest text-on-surface rounded-lg p-4 resize-none placeholder:text-on-surface-variant/40 focus:outline-none focus:ring-1 focus:ring-primary/40"
/>
<button
onClick={handleComment}
disabled={!comment.trim() || submitting}
className="self-end px-4 py-3 bg-primary text-on-primary rounded-lg font-semibold hover:scale-105 transition-transform disabled:opacity-30 disabled:cursor-not-allowed"
>
<Send size={18} />
</button>
</div>
)}
{replies.length > 0 ? (
<div className="space-y-6">
{replies.map((r) => (
<div
key={r.id}
className="bg-surface-container-high rounded-lg p-4"
>
<div className="flex items-center gap-2.5 mb-2">
<span className="font-semibold text-xs font-mono text-on-surface-variant/70">
{shortenPubkey(r.pubkey)}
</span>
<span className="text-on-surface-variant/30">·</span>
<span className="text-xs text-on-surface-variant/50">
{formatDate(new Date(r.created_at * 1000))}
</span>
</div>
<p className="text-on-surface-variant text-sm leading-relaxed">
{r.content}
</p>
</div>
))}
</div>
) : (
<p className="text-on-surface-variant/50 text-sm">
No comments yet. Be the first to share your thoughts.
</p>
)}
</section>
</>
)}
</div>
</div>
<Footer />
</>
);
}