<script>
	import { page } from '$app/state';
	import logo from '$lib/images/logo.png';
	import { getSessionKey } from '$lib/session.js';
	import { onMount } from 'svelte';

	let sessionKey;
	onMount(() => {
      sessionKey = getSessionKey();
    });
</script>

<header>
	<div class="corner">
		<a href="https://jonasjones.dev">
			<img src={logo} alt="SvelteKit" />
		</a>
	</div>

	<nav>
		<svg viewBox="0 0 2 3" aria-hidden="true">
			<path d="M0,0 L1,2 C1.5,3 1.5,3 2,3 L2,0 Z" />
		</svg>
		<ul>
			{#if sessionKey === null}
				<li aria-current={page.url.pathname === '/login' ? 'page' : undefined}>
					<a href="/login{page.url.search}">Login</a>
				</li>
				<li aria-current={page.url.pathname === '/signup' ? 'page' : undefined}>
					<a href="/signup{page.url.search}">Signup</a>
				</li>
				<li aria-current={page.url.pathname === '/about' ? 'page' : undefined}>
					<a href="/about">About</a>
				</li>
			{:else}
				<li aria-current={page.url.pathname === '/' ? 'page' : undefined}>
					<a href="/">Home</a>
				</li>
				<li aria-current={page.url.pathname === '/about' ? 'page' : undefined}>
					<a href="/about">About</a>
				</li>
				<li aria-current={page.url.pathname === '/logout' ? 'page' : undefined}>
					<a href="/logout">Logout</a>
				</li>
				{/if}
		</ul>
		<svg viewBox="0 0 2 3" aria-hidden="true">
			<path d="M0,0 L0,3 C0.5,3 0.5,3 1,2 L2,0 Z" />
		</svg>
	</nav>

	<div class="corner">
	</div>
</header>

<style>
	header {
		display: flex;
		justify-content: space-between;
	}

	.corner {
		width: 3em;
		height: 3em;
	}

	.corner a {
		display: flex;
		align-items: center;
		justify-content: center;
		width: 100%;
		height: 100%;
	}

	.corner img {
		width: 2em;
		height: 2em;
		object-fit: contain;
	}

	nav {
		display: flex;
		justify-content: center;
		--background: #242526;
	}

	svg {
		width: 2em;
		height: 3em;
		display: block;
	}

	path {
		fill: var(--background);
	}

	ul {
		position: relative;
		padding: 0;
		margin: 0;
		height: 3em;
		display: flex;
		justify-content: center;
		align-items: center;
		list-style: none;
		background: var(--background);
		background-size: contain;
	}

	li {
		position: relative;
		height: 100%;
	}

	li[aria-current='page']::before {
		--size: 6px;
		content: '';
		width: 0;
		height: 0;
		position: absolute;
		top: 0;
		left: calc(50% - var(--size));
		border: var(--size) solid transparent;
		border-top: var(--size) solid var(--color-theme-1);
	}

	nav a {
		display: flex;
		height: 100%;
		align-items: center;
		padding: 0 0.5rem;
		color: var(--color-text);
		font-weight: 700;
		font-size: 0.8rem;
		text-transform: uppercase;
		letter-spacing: 0.1em;
		text-decoration: none;
		transition: color 0.2s linear;
	}

	a:hover {
		color: var(--color-theme-1);
	}
</style>
