add command cooldown (static 60s)

app/server/db/Models/Command.js

@@ -15,6 +15,10 @@ const Command = sequelize.define("Command", {
     type: DataTypes.STRING,
     allowNull: true,
   },
+  cooldown: {
+    type: DataTypes.INTEGER,
+    defaultValue: 60,
+  },
   enabled: {
     type: DataTypes.BOOLEAN,
     defaultValue: true,

app/server/libs/twitch/api/getCommandByName.js

@@ -0,0 +1,5 @@
+const Command = require("../../../db/Models/Command");
+
+module.exports = async function getCommandByName(name) {
+  return await Command.findOne({ where: { name } });
+};

app/server/libs/twitch/chat/onCommand.js

@@ -1,13 +1,28 @@
-const getCommandNames = require("../api/getCommandNames");
+const getCommandByName = require("../api/getCommandByName");
 const pushActions = require("../pushActions");
 const { _ } = require("../../i18next");
+const ms = require("ms");
 
-module.exports = async function onCommand({ command, nick, message }) {
-  const commands = await getCommandNames();
+const cooldowns = {};
 
-  if (!commands.includes(command.name)) {
+module.exports = async function onCommand({ channel, command, nick, message }) {
+  const commandEntry = await getCommandByName(command.name);
+  const now = Date.now();
+
+  if (!commandEntry) {
     throw new Error(`${_("twitch.command-not-found")} ${command.name}`);
   }
 
+  const lastCall = cooldowns[command.name] || 0;
+  const cooldown = commandEntry.cooldown * 1000;
+  const elapsedTime = now - lastCall;
+
+  if (elapsedTime < cooldown) {
+    const rest = cooldown - elapsedTime;
+    this.say(channel, `Cooldown for ${command.name} -> ~${ms(rest)}`);
+    return;
+  }
+
+  cooldowns[command.name] = now;
   pushActions("onCommand", { user: nick, message, command });
 };