Add listall command

Co-authored-by: Coolguy3289 <Coolguy3289@users.noreply.github.com>

src/commands/admin/listall.js

@@ -0,0 +1,44 @@
+const Command = require('../../structures/Command');
+const GenericPager = require('../../structures/GenericPager');
+
+module.exports = class ListAll extends Command {
+  get name() { return 'listall'; }
+  get _options() { return {
+    permissions: ['admin'],
+    minimumArgs: 0
+  }; }
+  async exec(message) {
+    const pairs = await this.client.sqlite.getAll();
+    if (pairs <= 0)
+      return message.channel.createMessage('No pairs found in the database.');
+
+    for (const pair of pairs) {
+      const response = await this.client.lbry.accountBalance(pair.lbryID);
+      const wallet = await response.json();
+      if (!wallet.code) {
+        pair.wallet_available = wallet.result.available;
+        pair.wallet_reserve = wallet.result.reserved_subtotals.supports;
+        pair.wallet_ok = true;
+      } else {
+        console.error([
+          'There was an error while retrieving the balance of an account.',
+          'This was likely caused by an old version of the Bot\'s SQLite database file. ' +
+          'Run the sync command to avoid this error!'
+        ].join('\n'));
+      }
+    }
+
+    const paginator = new GenericPager(this.client, message, {
+      items: pairs, itemTitle: 'Pairs', itemsPerPage: 3,
+      display: pair => `> <@${pair.discordID}> - \`${pair.lbryID}\`\n` +
+      `> ${pair.wallet_ok
+        ? `${pair.wallet_available} available, ${pair.wallet_reserve}`
+        : 'Wallet Unavailable'}\n`
+    });
+    return paginator.start(message.channel.id, message.author.id);
+  }
+  get metadata() { return {
+    category: 'Admin',
+    description: 'List all users in the database.'
+  }; }
+};