require 'sct/command_interface'

module Sct
  class HostfileCommand

    IS_PUBLIC_COMMAND = true
    SYNTAX = 'sct hostfile'
    SUMMARY = 'adds the ingress url to the users hostfile'
    DESCRIPTION = ""
    EXAMPLE = "sct hostfile --path=/mnt/c/Windows/System32/drivers/etc/hosts"
    EXAMPLE_DESCRIPTION = ""

    OPTIONS = []

    def initialize
    end

    def self.options
    end

    def execute(args, options)

      require 'hosts'

      return unless ingressUrl
      url = ingressUrl

      if !options.path.nil?
        hosts = Hosts::File.read(options.path)
      elsif setup && sct_file["hostpath"]
        hosts = Hosts::File.read("#{sct_file["hostpath"]}")
      else
        puts "No hostpath found in Sctfile using default /etc/hosts".yellow
        hosts = Hosts::File.read('/etc/hosts')
      end

      if ([url].any? { |ip| hosts.to_s =~ /#{ip}/ })
        puts "Already exist and skipped.".green
      else
        validate_if_exist(hosts)
        add_entry(url, hosts)
        hosts.write
        puts "patched: #{url}".green
      end

    end

    def add_entry(url, hosts)
      spend = Hosts::Entry.new(
          url,
          'spend.cloud.local',
          :comment => 'The spend cloud ingress url'
      )

      mail = Hosts::Entry.new(
          url,
          'mail.spend.cloud.local',
          :comment => 'The spend cloud mail url'
      )

      config = Hosts::Entry.new(
          url,
          'config.spend.cloud.local',
          :comment => 'The spend cloud config url'
      )

      spend_cloud = Hosts::Entry.new(
          url,
          'spend-cloud.spend.cloud.local',
          :comment => 'The spend cloud web app url'
      )

      docs = Hosts::Entry.new(
          url,
          'docs.spend.cloud.local',
          :comment => 'The spend cloud documentation url'
      )

      hosts.elements << spend
      hosts.elements << mail
      hosts.elements << config
      hosts.elements << spend_cloud
      hosts.elements << docs

    end

    def validate_if_exist(array)
      rejectArray = Array.new

      array.to_s.each_line.with_index do |line, index|

        if (line =~ /(?:spend\.cloud\.local)./)
          rejectArray.push(index)
        end

      end

      array.elements.delete_if.each_with_index { |value, index| rejectArray.include? index }

    end

    def ingressUrl
      return Sct::Helpers.ingressUrl
    end

    def setup

      return false unless Sct::SctFolder.setup?

      return true

    end

    def sct_file

      return unless setup

      sct_file_string = File.read(Sct::SctFolder.sctfile_path)

      sct_file_hash = Sct::Helpers.to_hash(sct_file_string)

      return sct_file_hash
    end

    implements CommandInterface

  end

end