---
import { Image } from 'astro:assets';
import { getEntry } from 'astro:content';
import type { CollectionEntry } from 'astro:content';
import FormattedDate from '~/components/FormattedDate.astro';
import Webmentions from '~/components/Webmentions.astro';
import BaseLayout from '~/layouts/BaseLayout.astro';
import { DEFAULT_LOCALE, type Locale } from '~/consts';
import { categoryHref, entryHref, entrySlug, findTranslation, getSeries, postHref, tagHref } from '~/i18n/posts';
import { getLocaleFromUrl, t } from '~/i18n/ui';

type Props = CollectionEntry<'posts'>['data'] & {
	locale?: Locale;
	entry?: CollectionEntry<'posts'>;
};

const {
	title,
	description,
	pubDate,
	updatedDate,
	heroImage,
	hideHero,
	category,
	tags,
	url,
	repo,
	entry,
	locale = getLocaleFromUrl(Astro.url) ?? DEFAULT_LOCALE,
} = Astro.props;

const categoryEntry = category ? await getEntry(category) : undefined;
const otherLocale: Locale = locale === 'de' ? 'en' : 'de';
const translation = entry ? await findTranslation(entry, otherLocale) : undefined;
const series = entry ? await getSeries(entry) : undefined;
const currentSlug = entry ? entrySlug(entry) : undefined;
const seriesPosition = series && currentSlug ? series.entries.findIndex((e) => entrySlug(e) === currentSlug) : -1;
---

<BaseLayout title={title} description={description} image={heroImage} locale={locale} entry={entry}>
	<article class="h-entry">
		<a href={Astro.url.pathname} class="u-url" hidden></a>
		<div class="hero-image">
			{
				heroImage && !hideHero && (
					<Image
						class="u-photo"
						width={1020}
						height={510}
						src={heroImage}
						alt=""
					/>
				)
			}
		</div>
		<div class="prose">
			<div class="title">
				<div class="date">
					<FormattedDate date={pubDate} locale={locale} class="dt-published" />
					{
						updatedDate && (
							<div class="last-updated-on">
								{t(locale, 'post.lastUpdated')}{' '}
								<FormattedDate date={updatedDate} locale={locale} class="dt-updated" />
							</div>
						)
					}
				</div>
				<h1 class="p-name">{title}</h1>
				<p class="p-summary" hidden>{description}</p>
				<p class="p-author h-card" hidden>
					<a class="u-url p-name" href={new URL('/', Astro.site)}>Adrian Altner</a>
				</p>
				{
					categoryEntry && (
						<p class="category">
							{t(locale, 'post.category')}:{' '}
							<a href={categoryHref(categoryEntry)} class="p-category">
								{categoryEntry.data.name}
							</a>
						</p>
					)
				}
				{
					tags && tags.length > 0 && (
						<p class="tags">
							{t(locale, 'post.tags')}:{' '}
							{tags.map((name, i) => (<>{i > 0 && ', '}<a href={tagHref(locale, name)} class="p-category">{name}</a></>))}
						</p>
					)
				}
				{
					(url || repo) && (
						<p class="project-links">
							{url && (
								<a href={url} rel="noopener" class="u-url">
									{t(locale, 'post.projectDemo')}
								</a>
							)}
							{url && repo && ' · '}
							{repo && (
								<a href={repo} rel="noopener">
									{t(locale, 'post.projectRepo')}
								</a>
							)}
						</p>
					)
				}
				<hr />
			</div>
			{
				series && seriesPosition >= 0 && (
					<aside class="series-box">
						<p class="series-heading">
							{t(locale, 'post.series')}{' '}
							<a href={postHref(series.parent)}>{series.parent.data.title}</a>
							{' · '}
							<span class="series-position">
								{t(locale, 'post.seriesPart')
									.replace('{n}', String(seriesPosition + 1))
									.replace('{total}', String(series.entries.length))}
							</span>
						</p>
						<ol class="series-list">
							{series.entries.map((e) => {
								const isCurrent = entrySlug(e) === currentSlug;
								return (
									<li class={isCurrent ? 'is-current' : ''}>
										{isCurrent ? (
											<span>{e.data.title}</span>
										) : (
											<a href={postHref(e)}>{e.data.title}</a>
										)}
									</li>
								);
							})}
						</ol>
					</aside>
				)
			}
			{
				translation && (
					<aside class="translation-notice" lang={otherLocale}>
						<span>{t(locale, 'post.translationAvailable')}</span>{' '}
						<a href={entryHref(translation)} hreflang={otherLocale}>
							{t(locale, 'post.translationLink')}
						</a>
					</aside>
				)
			}
			<div class="e-content">
				<slot />
			</div>
			<Webmentions target={new URL(Astro.url.pathname, Astro.site)} locale={locale} />
		</div>
	</article>
</BaseLayout>

<style>
	main {
		width: calc(100% - 2em);
		max-width: 100%;
		margin: 0;
	}
	.hero-image {
		width: 100%;
	}
	.hero-image img {
		display: block;
		margin: 0 auto;
		border-radius: 12px;
		box-shadow: var(--box-shadow);
	}
	.prose {
		width: 720px;
		max-width: calc(100% - 2em);
		margin: auto;
		padding: 1em;
		color: rgb(var(--gray-dark));
	}
	.title {
		margin-bottom: 1em;
		padding: 1em 0;
		text-align: center;
		line-height: 1;
	}
	.title h1 {
		margin: 0 0 0.5em 0;
	}
	.date {
		margin-bottom: 0.5em;
		color: rgb(var(--gray));
	}
	.last-updated-on {
		font-style: italic;
	}
	.translation-notice {
		margin: 0 0 2em 0;
		padding: 0.75em 1em;
		background: rgba(var(--gray-light), 0.6);
		border-left: 3px solid var(--accent);
		border-radius: 4px;
		font-size: 0.95em;
	}
	.translation-notice a {
		color: var(--accent);
		font-weight: 600;
	}
	.series-box {
		margin: 0 0 2em 0;
		padding: 1em 1.25em;
		background: rgba(var(--gray-light), 0.5);
		border-left: 3px solid var(--accent);
		border-radius: 4px;
		font-size: 0.95em;
	}
	.series-heading {
		margin: 0 0 0.5em 0;
		font-weight: 600;
	}
	.series-heading a {
		color: var(--accent);
	}
	.series-position {
		font-weight: 400;
		color: rgb(var(--gray));
	}
	.series-list {
		margin: 0;
		padding-left: 1.5em;
	}
	.series-list li {
		margin: 0.2em 0;
	}
	.series-list li.is-current {
		font-weight: 600;
		color: rgb(var(--gray-dark));
	}
	.project-links {
		margin: 0.5em 0 0 0;
		font-size: 0.95em;
	}
	.project-links a {
		color: var(--accent);
		font-weight: 600;
	}
</style>