implement survey review mode

Closes #19

src/lib/components/Button.svelte

@@ -11,7 +11,7 @@
 		primary: 'bg-sky-200 hover:bg-sky-300 text-black border border-black rounded',
 		secondary: 'bg-slate-200 hover:bg-slate-300 text-black border border-black rounded',
 		tertiary: 'bg-white hover:bg-slate-100 text-black border border-slate-500 rounded',
-		ghost: 'bg-white hover:bg-slate-100 text-sky-600'
+		ghost: 'bg-none hover:bg-slate-100 text-sky-600'
 	};
 </script>
 

src/lib/components/Diagram.svelte

@@ -4,11 +4,12 @@
 	import { flatGroup } from 'd3-array';
 	import { Axis, Chart, Points, Spline, Svg } from 'layerchart';
 
-	const {
-		data
-	}: {
+	type Props = {
+		reviewMode: boolean;
 		data: { skill: string; participant: number; rating: number | undefined }[];
-	} = $props();
+	};
+
+	const { data, reviewMode }: Props = $props();
 
 	const averageValues = flatGroup(data, (d) => d.skill)
 		.map(([skill, ratings]) => {
@@ -34,6 +35,15 @@
 		{ stroke: 'stroke-cyan-300', fill: 'fill-cyan-400' },
 		{ stroke: 'stroke-pink-300', fill: 'fill-pink-400' }
 	];
+
+	const anonymousColor = { stroke: 'stroke-slate-300', fill: 'fill-slate-400' };
+
+	function getColor(idx: number) {
+		if (reviewMode) {
+			return anonymousColor;
+		}
+		return colors[idx % colors.length];
+	}
 </script>
 
 <div class="chart-container">
@@ -59,13 +69,9 @@
 				<Spline
 					data={[...ratings, ratings[0]]}
 					curve={curveLinear}
-					class="{colors[idx % colors.length].stroke} stroke-[2px]"
-				/>
-				<Points
-					data={ratings}
-					class="{colors[idx % colors.length].stroke} {colors[idx % colors.length]
-						.fill} stroke-[2px]"
+					class="{getColor(idx).stroke} stroke-[2px]"
 				/>
+				<Points data={ratings} class="{getColor(idx).stroke} {getColor(idx).fill} stroke-[2px]" />
 			{/each}
 			<Spline
 				data={[...averageValues, averageValues[0]]}

src/lib/components/icons/Eye.svelte

@@ -0,0 +1,15 @@
+<svg
+	xmlns="http://www.w3.org/2000/svg"
+	fill="none"
+	viewBox="0 0 24 24"
+	stroke-width="1.5"
+	stroke="currentColor"
+	class="size-5"
+>
+	<path
+		stroke-linecap="round"
+		stroke-linejoin="round"
+		d="M2.036 12.322a1.012 1.012 0 0 1 0-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178Z"
+	/>
+	<path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 1 1-6 0 3 3 0 0 1 6 0Z" />
+</svg>

src/lib/components/icons/EyeSlash.svelte

@@ -0,0 +1,14 @@
+<svg
+	xmlns="http://www.w3.org/2000/svg"
+	fill="none"
+	viewBox="0 0 24 24"
+	stroke-width="1.5"
+	stroke="currentColor"
+	class="size-5"
+>
+	<path
+		stroke-linecap="round"
+		stroke-linejoin="round"
+		d="M3.98 8.223A10.477 10.477 0 0 0 1.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.451 10.451 0 0 1 12 4.5c4.756 0 8.773 3.162 10.065 7.498a10.522 10.522 0 0 1-4.293 5.774M6.228 6.228 3 3m3.228 3.228 3.65 3.65m7.894 7.894L21 21m-3.228-3.228-3.65-3.65m0 0a3 3 0 1 0-4.243-4.243m4.242 4.242L9.88 9.88"
+	/>
+</svg>

src/routes/(app)/survey/[surveyId]/+page.svelte

@@ -17,6 +17,9 @@
 	import ShareIcon from '$lib/components/icons/ShareIcon.svelte';
 	import { checkAccess } from '$lib/helpers/shared/permissions';
 	import { AccessLevel, type ParticipantId } from '$lib/types';
+	import Button from '$lib/components/Button.svelte';
+	import EyeSlash from '$lib/components/icons/EyeSlash.svelte';
+	import Eye from '$lib/components/icons/Eye.svelte';
 
 	let { data }: { data: PageData } = $props();
 
@@ -45,8 +48,7 @@
 	let deleteAnswersDialogRef: HTMLDialogElement | null = $state(null);
 
 	let participantAnswersDeletionCandidateId = $state<number | null>(null);
-
-	$inspect(data);
+	let reviewMode = $state(false);
 
 	async function deleteSurvey() {
 		await fetch('', {
@@ -61,6 +63,18 @@
 		<a href="/" class="flex items-center" aria-label="Home" title="Home">
 			<HomeIcon />
 		</a>
+		<Button
+			kind="ghost"
+			class="text-white hover:bg-indigo-900"
+			onclick={() => (reviewMode = !reviewMode)}
+			title={reviewMode ? 'Show details' : 'Hide details'}
+		>
+			{#if reviewMode}
+				<Eye />
+			{:else}
+				<EyeSlash />
+			{/if}
+		</Button>
 		{#if checkAccess(data, AccessLevel.Clone)}
 			<a
 				href="../survey/new?from={data.id}"
@@ -104,8 +118,9 @@
 	<MarkdownBlock class="ml-4 mt-4 text-xs text-slate-500" value={data.description} />
 {/if}
 
-<h2 class="ml-2 mt-4 text-2xl">Participants</h2>
-<ul class="disc ml-4">
+{#if !reviewMode}
+	<h2 class="ml-2 mt-4 text-2xl">Participants</h2>
+	<ul class="disc ml-4">
 		{#each data.participants as participant}
 			<li>
 				<span class="mr-5">
@@ -142,11 +157,12 @@
 				{/if}
 			</li>
 		{/each}
-</ul>
+	</ul>
+{/if}
 
 {#if checkAccess(data, AccessLevel.ReadResult)}
 	<div class="grid grid-cols-1 justify-items-center">
-		<Diagram data={diagramData} />
+		<Diagram data={diagramData} {reviewMode}/>
 	</div>
 {:else}
 	<div class="text-center">You do not have permission to see the survey results</div>