Initial commit.

static/mainpage.js

@@ -0,0 +1,54 @@
+// Copyright (c) 2019-2020 by Juliusz Chroboczek.
+
+// This is not open source software.  Copy it, and I'll break into your
+// house and tell your three year-old that Santa doesn't exist.
+
+'use strict';
+
+document.getElementById('groupform').onsubmit = function(e) {
+    e.preventDefault();
+    let group = document.getElementById('group').value.trim();
+
+    location.href = '/group/' + group;
+}
+
+async function listPublicGroups() {
+    let div = document.getElementById('public-groups');
+    let table = document.getElementById('public-groups-table');
+
+    let l;
+    try {
+        l = await (await fetch('/public-groups.json')).json();
+    } catch(e) {
+        console.error(e);
+        l = [];
+    }
+
+    if (l.length === 0) {
+        table.textContent = '(No groups found.)';
+        div.classList.remove('groups');
+        div.classList.add('nogroups');
+        return;
+    }
+
+    div.classList.remove('nogroups');
+    div.classList.add('groups');
+
+    for(let i = 0; i < l.length; i++) {
+        let group = l[i];
+        let tr = document.createElement('tr');
+        let td = document.createElement('td');
+        let a = document.createElement('a');
+        a.textContent = group.name;
+        a.href = '/group/' + encodeURIComponent(group.name);
+        td.appendChild(a);
+        tr.appendChild(td);
+        let td2 = document.createElement('td');
+        td2.textContent = `(${group.clientCount} clients)`;
+        tr.appendChild(td2);
+        table.appendChild(tr);
+    }
+}
+
+
+listPublicGroups();