add some documentation, add timeout and itemuses tracking system

bot/items/grenade.ts

@@ -4,6 +4,8 @@ import { timeout } from "../lib/timeout";
 import { changeItemCount, Item } from ".";
 import { User } from "../user";
 import { getUserRecord } from "../db/dbUser";
+import { createTimeoutRecord } from "../db/dbTimeouts";
+import { createUsedItemRecord } from "../db/dbUsedItems";
 
 const ITEMNAME = 'grenade';
 
@@ -17,13 +19,18 @@ export default new Item(ITEMNAME, 'Grenade', 's',
     if (targets.length === 0) { await sendMessage('No vulnerable chatters to blow up', msg.messageId); return; };
     const selection = targets[Math.floor(Math.random() * targets.length)]!;
     const target = await User.initUserId(selection.split(':')[1]!);
+
+    await getUserRecord(target!); // make sure the user record exist in the database
+
     if (await user.itemLock()) { await sendMessage('Can\'t use two items at once pepeW', msg.messageId); return; };
     await user.setLock();
     await Promise.all([
       timeout(target!, `You got hit by ${user.displayName}'s grenade!`, 60),
       redis.del(selection),
       sendMessage(`wybuh ${target?.displayName} got hit by ${user.displayName}'s grenade wybuh`),
-      changeItemCount(user, userObj, ITEMNAME)
+      changeItemCount(user, userObj, ITEMNAME),
+      createTimeoutRecord(user, target!, ITEMNAME),
+      createUsedItemRecord(user, ITEMNAME)
     ]);
     await user.clearLock();
   }