From 39652bd9c908247139d177b02f1126cb5e07c119 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Tue, 26 Jan 2021 13:12:41 +0100
Subject: Some minor changes lol

---
 admin/public/questions.js | 57 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 admin/public/questions.js

(limited to 'admin/public/questions.js')

diff --git a/admin/public/questions.js b/admin/public/questions.js
new file mode 100644
index 0000000..32e48bf
--- /dev/null
+++ b/admin/public/questions.js
@@ -0,0 +1,57 @@
+let chart;
+const data = [];
+let question_index = 0;
+
+const label = document.getElementById("question");
+
+fetch("/admin/api/percentages")
+    .then((response) => response.json())
+    .then((response) => {
+        response.forEach((e) => {
+            if (!data[e.id - 1]) data[e.id - 1] = [];
+            data[e.id - 1].push(e);
+        });
+        render(question_index);
+    });
+
+function render(index) {
+    const ctx = document.getElementById("questions").getContext("2d");
+    const q = data[question_index];
+    label.innerText = q[0].question;
+    chart = new Chart(ctx, {
+        type: "pie",
+        data: {
+            labels: [...new Set(q.map((a) => a.option))],
+            datasets: [
+                {
+                    label: "# of Votes",
+                    data: q.map((a) => a.count || 0),
+                    backgroundColor: () => "#" + (Math.random().toString(16) + "0000000").slice(2, 8),
+                    borderWidth: 1,
+                },
+            ],
+        },
+        options: {
+            legend: {
+                display: false,
+            },
+            scales: {
+                yAxes: [
+                    {
+                        ticks: {
+                            beginAtZero: true,
+                            precision: 0,
+                        },
+                    },
+                ],
+            },
+        },
+    });
+}
+
+document.getElementById("switch").addEventListener("click", () => {
+    chart.destroy();
+    render(++question_index);
+    if (question_index + 1 < data.length) question_index++;
+    else question_index = 0;
+});
-- 
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