#!/usr/bin/env ruby

require 'thor'
require 'credy'

module Credy

  class CLI < Thor

    desc "generate", "Generate a credit card number"
    method_option :details, aliases: '-d', desc: "Show card details"
    method_option :country, aliases: '-c', type: :string, default: 'all', desc: "Card's issuing country (au, fr, us, ca, ...)"
    method_option :type, aliases: '-t', type: :string, default: 'all', desc: "Card's type (visa, mastercard, americanexpress)"
    method_option :number, aliases: '-n', type: :numeric, default: 1, desc: "Number of cards"
    def generate
      details = options[:details]

      args = {}
      args[:country] = options[:country] unless options[:country] == 'all'
      args[:type]    = options[:type] unless options[:type] == 'all'

      options[:number].times do 
        number = CreditCard.generate args

        unless number
          puts 'No rule found for those criteria.'
          break
        end
        
        if details
          d = [number[:type], number[:country]].compact
          puts "#{number[:number]} (#{d.join(', ')})"
        else
          puts number[:number]
        end
      end
    end
    map 'g' => :generate

    desc 'infos NUMBER', 'Show information about a credit card number'
    def infos(number)
      infos = CreditCard.infos number
      if infos
        puts "Type: #{infos[:type]}"
        puts "Country: #{infos[:country]}" if infos[:country]
        if CreditCard.validate(number)[:valid]
          puts "Valid".green
        else
          puts "Not valid".red
        end
      else
        puts 'No information available for this number.'
      end
    end
    map 'i' => :infos

    desc 'validate NUMBER', 'Check if a credit card number is valid or not'
    def validate(number)
      validity = CreditCard.validate number

      if validity[:valid]
        puts 'This number is valid.'.green
      else
        puts 'This number is not valid.'.red
      end

      details = []
      validity[:details].each do |criteria, value|
        value = value ? 'v'.green : 'x'.red
        details << "#{criteria}: #{value}"
      end
      puts "(#{details.join(', ')})"
    end
  
  end

end

Credy::CLI.start