added basic http server

.gitignore

@@ -3,3 +3,4 @@
 /bin/
 /.shards/
 *.dwarf
+kotatsu

src/kotatsu.cr

@@ -1,6 +1,32 @@
 # TODO: Write documentation for `Kotatsu`
+
+require "option_parser"
+require "http/server"
+
 module Kotatsu
   VERSION = "0.1.0"
 
-  # TODO: Put your code here
+  OptionParser.parse do |parser|
+    parser.banner = "Kotatsu - Easy to configure server start page"
+
+    parser.on "-h", "--help", "Show this help" do
+      puts parser
+      exit
+    end
+
+    parser.on "-v", "--version", "Show kotatsu version" do
+      puts VERSION
+      exit
+    end
+  end
+
+  webserv = HTTP::Server.new do |context|
+    context.response.content_type = "text/plain"
+    context.response.print "Running kotatsu #{VERSION}"
+  end
+
+  webaddr = webserv.bind_tcp 8080
+  puts "Started kotatsu webserver on #{webaddr}"
+  webserv.listen
+
 end