Add free transfer limit to filesystem

svelte/src/layout/SlowDown.svelte

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+<script>
+import { createEventDispatcher } from "svelte";
+import { formatDataVolume, formatDuration } from "../util/Formatting.svelte";
+import { stats } from "src/util/StatsSocket.js"
+import TextBlock from "src/layout/TextBlock.svelte"
+import IconBlock from "src/layout/IconBlock.svelte";
+let dispatch = createEventDispatcher()
+
+export let file_size = 0
+export let file_name = ""
+export let file_type = ""
+export let icon_href = ""
+</script>
+
+<TextBlock>
+	<img src="/res/img/slow_down.webp" class="header_image" alt="Yea, I'm gonna need you to slow down a bit"/>
+	<p>
+		Pixeldrain's free tier is supported by my Patrons. There's only so much
+		that you can do with the budget they provide.
+		{formatDataVolume($stats.limits.transfer_limit, 3)} per day is about the
+		most I can give away for free while keeping it fair for everyone, and
+		according to our records you have already downloaded
+		{formatDataVolume($stats.limits.transfer_limit_used, 3)}.
+	</p>
+	<p>
+		It's not that I want to withold this file from you, it's just that I
+		don't want pixeldrain to fall into bankruptcy like so many of the
+		websites that came before me. So if you really want this file you have a
+		few options:
+	</p>
+	<ul>
+		<li>
+			Come back tomorrow when your free transfer limit resets
+		</li>
+		<li>
+			Download the file at a limited rate of 1 MiB/s. This will take at
+			least {formatDuration((file_size/(1<<20))*1000, 0)}
+		</li>
+		<li>
+			<a href="/#pro" target="_blank" class="button button_highlight">
+				<i class="icon">bolt</i> Upgrade your account
+			</a>
+			and earn my eternal gratitude
+			{#if !window.user_authenticated}
+				(you will need a <a href="/register">pixeldrain account</a> to
+				receive the benefits)
+			{/if}
+		</li>
+	</ul>
+</TextBlock>
+
+<IconBlock icon_href={icon_href}>
+	<table>
+		<tr><td colspan="2">{file_name}</td></tr>
+		<tr><td>Type</td><td>{file_type}</td></tr>
+		<tr><td>Size</td><td>{formatDataVolume(file_size, 3)}</td></tr>
+	</table>
+	<button on:click={() => {dispatch("download")}}>
+		<i class="icon">download</i> Download
+	</button>
+</IconBlock>
+
+<TextBlock>
+	Also, I believe you have my stapler. Please give it back.
+</TextBlock>
+
+<style>
+.header_image {
+	width: 100%;
+	border-radius: 8px;
+}
+</style>