Delay retries, improve logging

src/lib/msgRoomName.coffee

@@ -12,15 +12,18 @@ module.exports = (msg, next, retryCount = 0) ->
       })
       .header('Authorization', 'Bearer ' + process.env.HUBOT_SLACK_TOKEN)
       .get() (err, response, body) ->
-        if err || response.ok is false || !response.channel
+        body = JSON.parse(body) if body
+        if err || response.statusCode isnt 200 || !body?.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)
+            console.warn "Retry [#{retryCount + 1}] to get channel info for #{msg.message.room}"
+            # Retry after 1 second
+            setTimeout (-> module.exports(msg, next, retryCount + 1)), 1000
           else
-            console.error "Failed to get channel name after retries for #{msg.message.room}"
+            error = err || (body)?.error
+            console.error "Failed to get channel name after #{retryCount} retries for " + \
+            "#{msg.message.room}. Status: #{response.statusCode}, Error: #{error}"
             next null # Signal failure after retries
         else
-          next response.channel.name
+          next body.channel.name
   else
     next msg.message.room