#!/usr/bin/env ruby

# Create a gimp palette from a CSS file's unique hex colors
# Weakenesses: Doesn't account for 3 digit colors (ie. #abc;)
# or for named colors
#
# By Michael Moore stuporglue@gmail.com
# Released to Public Domain April 5, 2007

if (ARGV[0] != nil)

    gimpstring = "GIMP Palette\nName: "
    if(ARGV[1] != nil) 
	gimpstring << ARGV[1]
    else 
	gimpstring << ARGV[0]
    end
    gimpstring << "\nColumns: 0\n#" 

    # This could have problems if you have ids that are only hex chars for the first 6 values
    # eg. if this were your CSS  
    #
    #	#abc123nurserystyle {
    # 		background-color: green;
    #	}
    #
    #	the color #abc123 would be added to the palette
    
    File.readlines(ARGV[0]).to_s.downcase.scan(/#[0-9a-f]{6}/).uniq.sort.each do |onecolor|

	colorparts = onecolor.scan(/[0-9a-f]{2}/)
	gimpstring << "\n" + colorparts[0].hex.to_s.rjust(3) + " " + colorparts[1].hex.to_s.rjust(3) + " " + colorparts[2].hex.to_s.rjust(3) + "\tUntitled"
    end
    print gimpstring
else
    puts ""
    puts "CSS to Gimp Palette"
    puts "Use 6-digit hex colors from a CSS file to create a Gimp palette (gpl) file"
    puts ""
    puts "USAGE: csstogpl.rb cssfile [Palette Name]"
    puts "If Palette Name is ommited, the CSS file's name will be used instead"
    puts ""
    puts "Note: csstogpl does not write to a file, it prints to stdout."
    puts "To save to a file, use redirection. eg."
    puts "csstogpl.rb style.css MyAwesomeColorScheme > MACS.gpl"
    puts ""
end