#!/usr/bin/env ruby
# runs clang format against all source files

def iterate_and_format(dir)
  file_types = {h: true, m: true, cpp: true, c: true}
  Dir.foreach(dir) do |filename|
    next if filename.start_with?('.') || filename.length == 0 || filename == "Pods" || filename.start_with?('Carthage') || filename == "build" || filename.start_with?('Third Party') || filename.end_with?('.framework') 
    
    full_path = dir + '/' + filename
    if File.directory?(full_path) 
      iterate_and_format(full_path)
      next
    end
    
    extension = filename.split('.').last
    next if !extension
    next if !file_types[extension.downcase.to_sym]

    begin
      new_file = ''
      skip = true
      File.foreach(full_path) do |line|
        if skip && (/^\/\//.match(line) || line.strip.length == 0)
          
        else
          skip = false
          new_file << line
        end
      end
      File.delete(full_path)
      f = File.new(full_path, 'w')
      f.write(new_file)
      f.close
    rescue Errno::EISDIR
    end
    puts "formatting #{full_path}"
    `clang-format -style=file -i "#{full_path}"`
  end
end

iterate_and_format(Dir.pwd)