<script lang="ts" module>
	import { getContext, setContext } from 'svelte';

	type Tab = string;
	type Tabs = Record<Tab, { title: string }>;

	class TabContext {
		tabs: Tabs = $state({});
		current: Tab = $state('');
	}

	export function getTabContext() {
		return getContext<TabContext>('tabs');
	}

	function initTabContext() {
		return setContext('tabs', new TabContext());
	}
</script>

<script lang="ts">
	import { fadeFast } from '$lib/Transitions';
	import type { Snippet } from 'svelte';
	import { fade } from 'svelte/transition';

	let { badges = {}, children }: { badges?: Record<Tab, boolean>; children?: Snippet } = $props();

	const context = initTabContext();
</script>

<div class="flex h-full max-h-full flex-col">
	<nav>
		<ul class="me-3 ms-1 flex border-b-2 border-slate-700 text-sm">
			{#each Object.entries(context.tabs) as [id, { title }]}
				<li class="-mb-0.5">
					<button
						type="button"
						class:active={context.current === id}
						class="focus-background relative flex gap-1 p-1 px-3 hover:border-b-2 hover:border-slate-200"
						onclick={() => (context.current = id)}
					>
						{#if badges[id]}
							<div
								class="absolute right-0 top-1 h-2 w-2 rounded-full bg-emerald-400"
								title="There are pending changes"
								transition:fade={fadeFast}
							></div>
						{/if}
						<span>{title}</span>
					</button>
				</li>
			{/each}
		</ul>
	</nav>
	{@render children?.()}
</div>

<style lang="postcss">
	button.active {
		@apply border-b-2 border-indigo-500;
	}
</style>
