module PGit
  class Command
    attr_reader :name, :steps, :branch_name, :current_project

    def initialize(name, steps, project)
      @name = name
      @steps = steps
      @branch_name = PGit::CurrentBranch.new.name
      @current_project = project
    end

    def execute
      @steps.each do |step|
        step.gsub!(/STORY_BRANCH/, branch_name)

        puts "About to execute '#{formatted_step(step)}'. Proceed? #{exec_options}"
        response = STDIN.gets.chomp

        if response.letter?('s')
          puts formatted_action('Skipping...')
        elsif response.letter?('q')
          puts formatted_action("Quitting...")
          break
        elsif response.letter?('y')
          puts "#{formatted_action('Executing')} '#{formatted_step(step)}'..."
          puts `#{step}`
        else
          show_options
          raise PGit::Error::User
        end
      end
    rescue PGit::Error::User
      retry
    end

    def to_h
      to_hash
    end

    def to_hash
      { name => steps }
    end

    def to_s
      steps.inject(Rainbow("#{name}:\n").bright) {|accum, step| accum + "  #{step}\n" }
    end

    def save!
      current_project.commands.reject! {|cmd| cmd.name == name}
      current_project.commands = current_project.commands << self
      current_project.save!
    end

    def remove!
      current_project.commands.reject! {|cmd| cmd.name == name}
      current_project.save!
    end

    private

    def formatted_action(action)
      Rainbow(action).color(:yellow)
    end

    def formatted_step(step)
      Rainbow(step).bright
    end

    def exec_options
      Rainbow("[Y/s/q]").color("#FF6FEA")
    end

    def show_options
      message = <<-LEGAL_OPTIONS
        y  - yes
        s  - skip
        q  - quit
      LEGAL_OPTIONS

      puts Rainbow(PGit::Helpers::Heredoc.remove_front_spaces(message)).red
    end
  end
end