Added ==

src/events.js

@@ -50,6 +50,25 @@ const handlePlusMinus = async( item, operation, channel ) => {
   return slack.sendMessage( message, channel );
 };
 
+/**
+ * Handles a = against a user, and then notifies the channel of the new score.
+ *
+ * @param {string} item      The Slack user ID (if user) or name (if thing) of the item being
+ *                           operated on.
+ * @param {string} operation The mathematical operation performed on the item's score.
+ * @param {object} channel   The ID of the channel (Cxxxxxxxx for public channels or Gxxxxxxxx for
+ *                           private channels - aka groups) that the message was sent from.
+ * @return {Promise} A Promise to send a Slack message back to the requesting channel after the
+ *                   points have been updated.
+ */
+const handlePlusEqual = async( item, operation, channel ) => {
+  const score = await points.getScore( item, operation ),
+        operationName = operations.getOperationName( operation ),
+        message = messages.getRandomMessage( operationName, item, score );
+
+  return slack.sendMessage( message, channel );
+};
+
 /**
  * Sends a random thank you message to the requesting channel.
  *
@@ -94,6 +113,7 @@ const sendHelp = ( event ) => {
     'Sure, here\'s what I can do:\n\n' +
     '• `@Someone++`: Add points to a user or a thing\n' +
     '• `@Someone--`: Subtract points from a user or a thing\n' +
+    '• `@Someone==`: Gets current points from a user or a thing\n' +
     '• `<@' + botUserID + '> leaderboard`: Display the leaderboard\n' +
     '• `<@' + botUserID + '> help`: Display this message\n\n' +
     'You\'ll need to invite me to a channel before I can recognise ' +
@@ -134,9 +154,12 @@ const handlers = {
       return false;
     }
 
+    if ( '=' === operation ) {
+      return handlePlusEqual( item, operation, event.channel );
+    }
+
     // Otherwise, let's go!
     return handlePlusMinus( item, operation, event.channel );
-
   }, // Message event.
 
   /**
@@ -158,7 +181,10 @@ const handlers = {
       help: sendHelp,
       thx: sayThankyou,
       thanks: sayThankyou,
-      thankyou: sayThankyou
+      thankyou: sayThankyou,
+      '++': handlePlusMinus,
+      '--': handlePlusMinus,
+      '==': handlePlusEqual
     };
 
     const validCommands = Object.keys( appCommandHandlers ),

src/helpers.js

@@ -61,7 +61,8 @@ const extractCommand = ( message, commands ) => {
  *                   (i.e. + or -).
  */
 const extractPlusMinusEventData = ( text ) => {
-  const data = text.match( /@([A-Za-z0-9]+?)>?\s*(\+{2}|-{2}|—{1})/ );
+
+  const data = text.match( /@([A-Za-z0-9:-_]+?)>?\s*(\+{2}|-{2}|—{1}|={2})/ );
 
   if ( ! data ) {
     return false;

src/messages.js

@@ -62,6 +62,20 @@ messages[ operations.MINUS ] = [
   }
 ];
 
+messages[ operations.EQUAL ] = [
+  {
+    probability: 100,
+    set: [
+      'How is',
+      'Why is'
+    ]
+  },
+  {
+    probability: 1,
+    set: [ ':shifty:' ]
+  }
+];
+
 messages[ operations.SELF ] = [
   {
     probability: 100,
@@ -96,13 +110,17 @@ const getRandomMessage = ( operation, item, score = 0 ) => {
   switch ( operation ) {
     case operations.MINUS:
     case operations.PLUS:
-      format = '<message> *<item>* is now on <score> point<plural>.';
+      format = '<message> *<item>* has <score> point<plural>.';
       break;
 
     case operations.SELF:
       format = '<item> <message>';
       break;
 
+    case operations.EQUAL:
+      format = '<message> *<item>* currently at <score> point<plural>.';
+      break;
+
     default:
       throw Error ( 'Invalid operation: ' + operation );
   }

src/operations.js

@@ -7,7 +7,8 @@
 const operations = {
   PLUS: 'plus',
   MINUS: 'minus',
-  SELF: 'selfPlus'
+  SELF: 'selfPlus',
+  EQUAL: 'equal'
 };
 
 /**
@@ -23,6 +24,7 @@ const getOperationName = ( operation ) => {
   switch ( operation ) {
     case '+': operationName = operations.PLUS; break;
     case '-': operationName = operations.MINUS; break;
+    case '=': operationName = operations.EQUAL; break;
   }
   /* eslint-enable max-statements-per-line */
 

src/points.js

@@ -93,7 +93,44 @@ const updateScore = async( item, operation ) => {
 
 }; // UpdateScore.
 
+/**
+ * Gets score
+ * into the database with an assumed initial score of 0.
+ *
+ * This function also sets up the database if it is not already ready, including creating the
+ * scores table and activating the Postgres case-insensitive extension.
+ *
+ * @param {string} item      The Slack user ID (if user) or name (if thing) of the item being
+ *                           operated on.
+ * @param {string} operation The mathematical operation performed on the item's score.
+ * @return {int} The item's new score after the update has been applied.
+ */
+const getScore = async( item ) => {
+
+  // Connect to the DB, and create a table if it's not yet there.
+  // We also set up the citext extension, so that we can easily be case insensitive.
+  const dbClient = await postgres.connect();
+  await dbClient.query( '\
+    CREATE EXTENSION IF NOT EXISTS citext; \
+    CREATE TABLE IF NOT EXISTS ' + scoresTableName + ' (item CITEXT PRIMARY KEY, score INTEGER); \
+  ' );
+
+  // Get the new value.
+  // TODO: Fix potential SQL injection issues here, even though we know the input should be safe.
+  const dbSelect = await dbClient.query( '\
+    SELECT score FROM ' + scoresTableName + ' WHERE item = \'' + item + '\'; \
+  ' );
+
+  await dbClient.release();
+  const score = dbSelect.rows[0].score;
+
+  console.log( item + ' now on ' + score );
+  return score;
+
+}; // UpdateScore.
+
 module.exports = {
   retrieveTopScores,
-  updateScore
+  updateScore,
+  getScore
 };