Simplify command prefixing

lib/commands/help.js

@@ -1,20 +1,26 @@
 'use strict';
 
+const PREFIX = require('./index').COMMAND_PREFIX;
+
 /**
  * !help
  * @param {Object} msg Discord message
  */
 module.exports = (msg) => {
   msg.channel.send([
     '```',
-    'Commands: help, deals, wishlist, add, delete\n',
-    '-Help: !help',
-    '    Go help yourself to some good deals.',
-    '-Deals: !deals [game name]',
-    '    Current deals on a specific game',
-    '-WishList: !wishlist [game names]',
-    '    Current deals on multiple games, add a \'-\' for games',
+    'Commands: help, deals, wishlist, ignoredsellers\n',
+    `- ${PREFIX}help`,
+    '    This command',
+    `- ${PREFIX}deals [game name]`,
+    '    Gets current deals on a specific game',
+    `- ${PREFIX}wishlist [game names]`,
+    '    Gets current deals on multiple games, add a \'-\' for games',
     '    with multiple words',
+    `- ${PREFIX}ignoredsellers`,
+    '    Lists all ignored sellers',
+    `- ${PREFIX}ignoredsellers [add|remove] [seller]`,
+    '    Adds or removes an ignored seller',
     '```'
   ].join('\n'));
 };

lib/commands/index.js

@@ -1,6 +1,7 @@
 'use strict';
 
 module.exports = {
+  COMMAND_PREFIX: '!',
   help: require('./help'),
   deals: require('./deals'),
   wishlist: require('./wishlist'),

lib/index.js

@@ -8,13 +8,11 @@ const bot = new Discord.Client();
 const commands = require('./commands');
 const settingsUtil = require('./util/settings');
 
-const COMMAND_PREFIX = '!';
-const C_HELP = `${COMMAND_PREFIX}help`;
-const C_DEALS = `${COMMAND_PREFIX}deals`;
-const C_WISHLIST = `${COMMAND_PREFIX}wishlist`;
-const C_IGNORED_SELLERS = `${COMMAND_PREFIX}ignoredsellers`;
-const C_ADD = `${COMMAND_PREFIX}add`;
-const C_REMOVE = `${COMMAND_PREFIX}remove`;
+const PREFIX = commands.COMMAND_PREFIX;
+const C_HELP = 'help';
+const C_DEALS = 'deals';
+const C_WISHLIST = 'wishlist';
+const C_IGNORED_SELLERS = 'ignoredsellers';
 
 let settings = settingsUtil.DEFAULT_SETTINGS;
 
@@ -43,7 +41,7 @@ bot.on('ready', async () => {
 bot.on('message', async (msg) => {
   const [command, options] = msg.content.split(/\s+(.*)/);
 
-  switch (command) {
+  switch (command.substring(PREFIX.length)) {
     case C_HELP:
       commands.help(msg);
       break;