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<script>
import { Avatar } from '$comp';
import { browser } from '$app/environment';
import VirtualScroll from 'svelte-virtual-scroll-list';
import { punk } from '$lib/utils';
import { Buffer } from 'buffer';
import { entropyToMnemonic, mnemonicToSeedSync } from 'bip39';
import { enhance } from '$app/forms';
import { bech32m } from 'bech32';
import { calculateId, signId } from 'nostr';
import { bip32, stretch, post } from '$lib/utils';
export let events;
export let user;
const { decode, fromWords } = bech32m;
let message;
let submit = async () => {
let mnemonic, key, password, seed, entropy, child, privkey;
entropy = Buffer.from(
await crypto.subtle.decrypt(
{ name: 'AES-GCM', iv: new Uint8Array(16) },
await stretch(password, Buffer.from(user.salt, 'hex')),
Uint8Array.from(fromWords(decode(user.cipher, 180).words))
),
'hex'
).toString('hex');
mnemonic = entropyToMnemonic(entropy);
seed = mnemonicToSeedSync(mnemonic);
key = bip32.fromSeed(seed);
child = key.derivePath("m/44'/1237'/0'/0/0");
privkey = child.privateKey;
let event = {
pubkey: user.pubkey,
created_at: Math.floor(Date.now() / 1000),
kind: 1,
content: message,
tags: []
};
event.id = await calculateId(event);
event.sig = await signId(privkey, event.id);
await post(`/${user.username}`, { event });
event.user = user;
event.seen = event.created_at;
events[event.id] = event;
events = events;
};
let distance = (date) => {
let m = 60;
let h = 60 * m;
let d = 24 * h;
let diff = Math.round(Date.now() / 1000) - date;
return diff > d
? Math.round(diff / d) + 'd'
: diff > h
? Math.round(diff / h) + 'h'
: diff > m
? Math.round(diff / m) + 'm'
: diff > 2
? diff + 's'
: 'now';
};
let w;
$: sorted = Object.values(events)
.filter((ev) => ev?.pubkey)
.sort((a, b) => b.seen - a.seen);
</script>
<svelte:window bind:innerWidth={w} />
<form on:submit|preventDefault={submit} class="flex justify-center gap-4 max-w-2xl mx-auto">
<div class="grow">
<input
name="message"
bind:value={message}
placeholder="What's happening?"
class="my-5 mx-auto"
/>
</div>
<button class="rounded-full border py-4 px-5 font-bold hover:opacity-80 w-40 my-5">Post</button>
</form>
{#if browser}
<VirtualScroll data={sorted} key="id" let:data pageMode={true} estimateSize={200}>
<div class="flex border-b py-4 text-sm lg:text-lg text-secondary" :key={data.id}>
<a href={`/${data.user.anon ? data.user.pubkey : data.user.username}`}>
<div class="mb-auto mr-2">
<div class="md:hidden">
<Avatar size={12} user={data.user} disabled={true} />
</div>
<div class="hidden md:block">
<Avatar size={20} user={data.user} disabled={true} />
</div>
</div>
</a>
<div class="grow" style={`max-width: ${w - 100}px`}>
<div class="w-full flex pb-1 text-black">
<div>{data.user.username}</div>
<div class="text-secondary"> {distance(data.seen)}</div>
</div>
<div class="break-words">
{data.content}
</div>
</div>
</div>
</VirtualScroll>
{/if}
|
