class NamespaceEditor

# File lib/NamespaceEditor.rb, line 6
def initialize(new_namespace, old_namespace, src_path, file_extensions, list = false, overwrite = true)
        @new_namespace = new_namespace
        @old_namespace = old_namespace
        @src_path = src_path
        @extensions = file_extensions
        @list = list
        @overwrite = overwrite

        @changed_files_count = 0
end

# File lib/NamespaceEditor.rb, line 49
def do_replace_namespace file
        src = read_file file
        
        src_after_replacing_namespace = src.gsub(@old_namespace, @new_namespace)

        unless src_after_replacing_namespace === src
                if @overwrite
                        begin
                                output = File.new(file, "w")
                                output.write src_after_replacing_namespace
                                output.close
                        rescue
                                puts
                                STDERR.puts "ERROR: There was a problem writing to '#{file}"
                                exit 1
                        end
                end
                
                if @list
                        puts File.absolute_path(file)
                else
                        print "."
                end
                @changed_files_count += 1
        end
        @changed_files_count
end

# File lib/NamespaceEditor.rb, line 17
def read_file file_path
        File.open file_path, "r"  do | file |
                file.read
        end
end

# File lib/NamespaceEditor.rb, line 23
def replace_namespace
        @changed_files_count = 0
        @extensions.each do | extension |
                unless @list
                        puts "\tprocessing #{extension} files in #{@src_path}"
                        print "\t"
                end
                Dir.glob(@src_path + "/**/*.#{extension}") do |file| #find src files in current folder and all subfolders
                        do_replace_namespace file
                end
                unless @list
                        puts
                end
        end
        unless @list
                puts
        end
        unless @list
                if @overwrite
                        puts "There were #{@changed_files_count} changes made"
                else
                        puts "#{@changed_files_count} file(s) were found. Use the --overwrite flag to make changes to the files"
                end
        end
end