refactor: lightly refactored code for easier reading

This commit refactored some of the variables so they're easier to read

Signed-off-by: Miguel Nogueira <me@nogueira.codes>

main.rb

@@ -56,7 +56,7 @@ def get_line_code(line)
 end
 
 # Gets the user agent of the given log line
-def get_line_ua(line)
+def get_line_browser(line)
   pattern = /"([^"]*)"$/
   user_agent = line.match(pattern)[0] if line.match(pattern)
 
@@ -89,7 +89,7 @@ end
 
 visit_counter = {}
 client_errors = {}
-user_agents = {}
+browsers = {}
 all_ips = []
 
 lines.each do |line|
@@ -108,7 +108,8 @@ end
 lines.each do |line|
   ip = get_line_ip(line).to_s
   code = get_line_code(line)
-  ua = get_line_ua(line)
+  browser = get_line_browser(line)
+  # refactored from "ua" to "browser"
   
   if is_client_err?(code.to_i)
     if client_errors[ip]
@@ -118,17 +119,18 @@ lines.each do |line|
     end
   end
   
-  if user_agents[ua]
+  # refactored from: "user_agents[ua]" to "browsers[browser]"
-    user_agents[ua] += 1
+  if browsers[browser]
+    browsers[browser] += 1
   else
-    user_agents[ua] = 1
+    browsers[browser] = 1
   end
 
 end
 
-top_user_agents = user_agents.sort_by { |_ua, count| -count }.first(5)
+top_browsers = browsers.sort_by { |_ua, count| -count }.first(5)
-puts 'Top 5 User-Agents contacting the site:'
+puts 'Top 5 browsers contacting the site:'
-top_user_agents.each do |ua, count|
+top_browsers.each do |ua, count|
   puts "#{ua}: #{count} visits"
 end