From 55da2d58864166c9494771c83165b626acdd911e Mon Sep 17 00:00:00 2001
From: Victoria Madrid <victoria@wyeworks.com>
Date: Wed, 19 Dec 2018 19:03:55 -0300
Subject: [PATCH] Refactor call method from Slack notifier

---
 lib/exception_notifier/slack_notifier.rb | 92 ++++++++++++++----------
 1 file changed, 55 insertions(+), 37 deletions(-)

diff --git a/lib/exception_notifier/slack_notifier.rb b/lib/exception_notifier/slack_notifier.rb
index 6f6447e2..f3fbeefa 100644
--- a/lib/exception_notifier/slack_notifier.rb
+++ b/lib/exception_notifier/slack_notifier.rb
@@ -21,46 +21,12 @@ def initialize(options)
     end
 
     def call(exception, options={})
-      errors_count = options[:accumulated_errors_count].to_i
-      measure_word = errors_count > 1 ? errors_count : (exception.class.to_s =~ /^[aeiou]/i ? 'An' : 'A')
-      exception_name = "*#{measure_word}* `#{exception.class.to_s}`"
-
-      if options[:env].nil?
-        data = options[:data] || {}
-        text = "#{exception_name} *occured in background*\n"
-      else
-        env = options[:env]
-        data = (env['exception_notifier.exception_data'] || {}).merge(options[:data] || {})
-
-        kontroller = env['action_controller.instance']
-        request = "#{env['REQUEST_METHOD']} <#{env['REQUEST_URI']}>"
-        text = "#{exception_name} *occurred while* `#{request}`"
-        text += " *was processed by* `#{kontroller.controller_name}##{kontroller.action_name}`" if kontroller
-        text += "\n"
-      end
-
       clean_message = exception.message.gsub("`", "'")
-      fields = [ { title: 'Exception', value: clean_message } ]
-
-      fields.push({ title: 'Hostname', value: Socket.gethostname })
-
-      if exception.backtrace
-        formatted_backtrace = "```#{exception.backtrace.first(@backtrace_lines).join("\n")}```"
-        fields.push({ title: 'Backtrace', value: formatted_backtrace })
-      end
-
-      unless data.empty?
-        deep_reject(data, @ignore_data_if) if @ignore_data_if.is_a?(Proc)
-        data_string = data.map{|k,v| "#{k}: #{v}"}.join("\n")
-        fields.push({ title: 'Data', value: "```#{data_string}```" })
-      end
-
-      fields.concat(@additional_fields) if @additional_fields
-
-      attchs = [color: @color, text: text, fields: fields, mrkdwn_in: %w(text fields)]
+      attchs = attchs(exception, clean_message, options)
 
       if valid?
-        send_notice(exception, options, clean_message, @message_opts.merge(attachments: attchs)) do |msg, message_opts|
+        args = [exception, options, clean_message, @message_opts.merge(attachments: attchs)]
+        send_notice(*args) do |msg, message_opts|
           @notifier.ping '', message_opts
         end
       end
@@ -84,5 +50,57 @@ def deep_reject(hash, block)
       end
     end
 
+    private
+
+    def attchs(exception, clean_message, options)
+      text, data = information_from_options(exception.class, options)
+      fields = fields(clean_message, exception.backtrace, data)
+
+      [color: @color, text: text, fields: fields, mrkdwn_in: %w(text fields)]
+    end
+
+    def information_from_options(exception_class, options)
+      errors_count = options[:accumulated_errors_count].to_i
+      measure_word = errors_count > 1 ? errors_count : (exception_class.to_s =~ /^[aeiou]/i ? 'An' : 'A')
+      exception_name = "*#{measure_word}* `#{exception_class.to_s}`"
+      env = options[:env]
+
+      if env.nil?
+        data = options[:data] || {}
+        text = "#{exception_name} *occured in background*\n"
+      else
+        data = (env['exception_notifier.exception_data'] || {}).merge(options[:data] || {})
+
+        kontroller = env['action_controller.instance']
+        request = "#{env['REQUEST_METHOD']} <#{env['REQUEST_URI']}>"
+        text = "#{exception_name} *occurred while* `#{request}`"
+        text += " *was processed by* `#{kontroller.controller_name}##{kontroller.action_name}`" if kontroller
+        text += "\n"
+      end
+
+      [text, data]
+    end
+
+    def fields(clean_message, backtrace, data)
+      fields = [
+        { title: 'Exception', value: clean_message },
+        { title: 'Hostname', value: Socket.gethostname }
+      ]
+
+      if backtrace
+        formatted_backtrace = "```#{backtrace.first(@backtrace_lines).join("\n")}```"
+        fields << { title: 'Backtrace', value: formatted_backtrace }
+      end
+
+      unless data.empty?
+        deep_reject(data, @ignore_data_if) if @ignore_data_if.is_a?(Proc)
+        data_string = data.map{|k,v| "#{k}: #{v}"}.join("\n")
+        fields << { title: 'Data', value: "```#{data_string}```" }
+      end
+
+      fields.concat(@additional_fields) if @additional_fields
+
+      fields
+    end
   end
 end