Retry msgRoomName up to three times

Author: benpbolton

src/lib/msgRoomName.coffee

@@ -1,16 +1,26 @@
 # Return the human-readable name of the channel the msg was sent in
 # for hubot-slack's breaking change from 3->4 of using ID instead of name
 # @param  {msg Object}
+# @param  {next Function} callback
+# @param  {retryCount Number} number of times this function has been retried
 # @return String human-readable name of the channel
-module.exports = (msg, next) ->
+module.exports = (msg, next, retryCount = 0) ->
   if msg.robot.adapterName is "slack"
     msg.robot.http("https://slack.com/api/conversations.info")
       .query({
         channel: msg.message.room
       })
-      .header('Authorization', 'Bearer ' + process.env.HUBOT_SLACK_TOKEN )
+      .header('Authorization', 'Bearer ' + process.env.HUBOT_SLACK_TOKEN)
       .get() (err, response, body) ->
-        channel = JSON.parse(body)
-        next channel.channel.name
+        if err || response.ok is false || !response.channel
+          if retryCount < 3 # Retry up to 3 times
+            console.warn "Retrying to get channel info for #{msg.message.room}"
+            console.warn "[Attempt #{retryCount+ 1}]"
+            module.exports(msg, next, retryCount + 1)
+          else
+            console.error "Failed to get channel name after retries for #{msg.message.room}"
+            next null # Signal failure after retries
+        else
+          next response.channel.name
   else
     next msg.message.room