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<script>
	import { t } from '$lib/translations';
	import { onMount } from 'svelte';
	import { Avatar } from '$comp';
	import { browser } from '$app/environment';
	import VirtualScroll from 'svelte-virtual-scroll-list';
	import { enhance } from '$app/forms';
	import { post, punk, failure } from '$lib/utils';
	import { sign, send } from '$lib/nostr';

	export let events;
	export let user = undefined;

	let message;

	let submit = async () => {
		try {
			let mnemonic, key, seed, entropy, child, privkey;

			let event = {
				pubkey: user.pubkey,
				created_at: Math.floor(Date.now() / 1000),
				kind: 1,
				content: message,
				tags: []
			};

			await sign({ event, user });
			await send(event);

			event.user = user;
			event.seen = event.created_at;

			events[event.id] = event;
			events = events;
		} catch (e) {
			console.log(e, e.stack);
			failure('Problem posting event');
		}
	};

	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 && ev?.kind === 1)
		.sort((a, b) => b.seen - a.seen);
</script>

<svelte:window bind:innerWidth={w} />

{#if user}
	<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}

{#if browser}
	{#if sorted.length}
		<VirtualScroll data={sorted} key="id" let:data pageMode={true} estimateSize={200}>
			<div class="flex py-4 text-sm lg:text-lg text-secondary" :key={data.id}>
				<a href={`/${data.user.pubkey}`}>
					<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: ${w - 100}px`}>
					<div class="w-full flex pb-1 text-black">
						<div>
							{data.user.display_name || ''}
							<span class="text-secondary">@{data.user.username}</span>
						</div>
						<div class="text-secondary">&nbsp;{distance(data.seen)}</div>
					</div>
					<div class="break-words">
						{data.content}
					</div>
				</div>
			</div>
		</VirtualScroll>
	{:else}
		<div class="flex w-full">
			<div class="mx-auto text-secondary">{$t('user.noNotes')}</div>
		</div>
	{/if}
{/if}