#!/usr/bin/env ruby
## Se guarda en /usr/local/bin/cosa, se le da permisos con chmod a+x /usr/local/bin/cosa y se
## ejecuta con cosa paquete, asi de simple ^^

require 'open3'
TARGET = ARGV.first
APT_SEARCH = "apt-cache search #{TARGET}"
class AptCache
  def self.parse(pkgdesc)
    if pkgdesc =~ /([\w\-\_]+)\s-\s(.+)$/
      AptCache.show $1
      end
    end

    def self.show(pkg)
      Open3.popen3("apt-cache show #{pkg}") { |stdin, stdout, stderr|
         hash = {}
           stdout.each { |line|
             if line =~ /(\w+):\s(.+)$/
                hash[$1.downcase.to_sym] = $2
                        end
                        }
                        installed = AptCache.installed?(pkg)
                        print " \033[92m*\033[00m #{hash[:section]}/\033[01m#{hash[:package]}\033[00m  "
                        if installed
                           puts "[\033[42mINSTALLED\033[00m]"
                        else
                           puts ""
                        end
                        puts "   \033[32mVersion:\033[00m \033[96m#{hash[:version]}\033[00m"
                        if hash.has_key? :homepage
                           puts "   \033[32mHomepage:\033[00m #{hash[:homepage]}"
                        end
                        puts "   \033[32mDescription:\033[00m #{hash[:description]}"
                        puts ""
                }
        end
        def self.installed?(pkg)
           Open3.popen3("dpkg -l #{pkg}") { |stdin, stdout, stderr|
               stdout.each { |line|
                   if line =~ /^ii\s+#{pkg}\s+/
                       return true
                       end
                   }
              }
           false
       end
end

begin
Open3.popen3(APT_SEARCH) { |stdin, stdout, stderr|
   stdout.each { |line|
      AptCache.parse(line)
   }
}
rescue Interrupt
end
#Fin