Add Abandon command

src/commands/curator/abandon.js

@@ -0,0 +1,39 @@
+const Command = require('../../structures/Command');
+const Util = require('../../util');
+
+module.exports = class Abaondon extends Command {
+  get name() { return 'abandon'; }
+
+  get _options() { return {
+    aliases: ['aban', 'drop'],
+    permissions: ['curatorOrAdmin'],
+    minimumArgs: 1
+  }; }
+
+  async exec(message, { args }) {
+     const givenClaim = args[0];
+    if (!/^[a-f0-9]{40}$/.test(givenClaim))
+      // @TODO use claim_search for invalid claim ids
+      return message.channel.createMessage('That Claim ID isn\'t valid.');
+  
+    const account = await Util.LBRY.findOrCreateAccount(this.client, message.author.id);
+    if (account.newAccount) {
+      // Wait for the blockchain to complete the funding
+      await message.channel.sendTyping();
+      await Util.halt(3000);
+    }
+    // Create support
+    const response = await this.client.lbry.abandonSupport({
+      accountID: account.accountID, claimID: givenClaim});
+    const transaction = await response.json();
+    if (await this.handleResponse(message, response, transaction)) return;
+    const txid = transaction.result.txid;
+    message.channel.createMessage(`Abandon successful! https://explorer.lbry.com/tx/${txid}`);
+  }
+
+  get metadata() { return {
+    category: 'Curator',
+    description: 'Abandons a support on a given claim.',
+    usage: '<claim>'
+  }; }
+};