# frozen_string_literal: true

require 'vagrant'
require 'fog/profitbricks'

module VagrantPlugins
  module ProfitBricks
    class Config < Vagrant.plugin('2', :config)
      # The API key to access ProfitBricks - password
      # @return [String]
      attr_accessor :password

      # The username to access ProfitBricks.
      #
      # @return [String]
      attr_accessor :username

      # The url to access ProfitBricks Cloud API.
      #
      # expected to be a string url -
      # 'https://api.profitbricks.com/cloudapi/v4/'
      attr_accessor :profitbricks_url

      # The flavor of server to launch, either the ID or name. This
      # can also be a regular expression to partially match a name.
      attr_accessor :flavor

      # The name or ID of the image to use. This can also be a regular
      # expression to partially match a name.
      attr_accessor :image
      attr_accessor :image_alias

      # The name of the server. This defaults to the name of the machine
      # defined by Vagrant (via `config.vm.define`), but can be overriden
      # here.
      attr_accessor :server_name

      # Id or Name (name can be regular expression ) of datacenter. If provided with Name that doesn't match
      # new datacenter will be created in location specified by location option
      attr_accessor :datacenter_id

      #  Specify location for datacenter if one needs to be created, default value is 'us/las'
      attr_accessor :location

      #  Disk volume size in GB
      attr_accessor :volume_size

      #  Disk volume type (SSD or HDD)
      #  Will default to HDD if not specified
      attr_accessor :volume_type

      #  The licence type of the volume. Options: LINUX, WINDOWS, UNKNOWN, OTHER
      #  You will need to provide either the image or the licence_type parameters.
      #  licence_type is required, but if image is supplied, it is already set and cannot be changed
      attr_accessor :volume_licence_type

      #  The storage availability zone assigned to the volume.
      #  Valid values: AUTO, ZONE_1, ZONE_2, or ZONE_3. This only applies to HDD volumes.
      #  Leave blank or set to AUTO when provisioning SSD volumes.
      #  Will default to AUTO if not specified
      attr_accessor :volume_availability_zone

      #  One or more SSH keys to allow access to the volume via SSH.
      #  Works with ProfitBricks supplied Linux images.
      attr_accessor :public_ssh_keys

      # POne-time password is set on the Image for the appropriate account.
      # This field may only be set in creation requests. When reading, it always returns null.
      # Password has to contain 8-50 characters. Only these characters are allowed: [abcdefghjkmnpqrstuvxABCDEFGHJKLMNPQRSTUVX23456789]
      attr_accessor :image_password

      # number of cores in profitbricks server
      attr_accessor :cores

      # Required, amount of memory in GB allocated to virtual server
      attr_accessor :ram

      # Sets the CPU type. "AMD_OPTERON" or "INTEL_XEON". Defaults to "AMD_OPTERON".
      attr_accessor :cpu_family

      # The LAN ID the network interface (NIC) will sit on. If the LAN ID does not exist it will be created.
      attr_accessor :lan_id

      # Indicates the private IP address has outbound access to the public internet. Defaults to 'false'.
      attr_accessor :nat

      def initialize
        @password = UNSET_VALUE
        @profitbricks_url = UNSET_VALUE
        @flavor = UNSET_VALUE
        @cores = UNSET_VALUE
        @ram = UNSET_VALUE
        @image = nil
        @image_alias = nil
        @server_name = UNSET_VALUE
        @datacenter_id = UNSET_VALUE
        @username = UNSET_VALUE
        @volume_size = UNSET_VALUE
        @location = UNSET_VALUE
        @volume_type = UNSET_VALUE
        @volume_licence_type = UNSET_VALUE
        @volume_availability_zone = UNSET_VALUE
        @public_ssh_keys = UNSET_VALUE
        @cpu_family = UNSET_VALUE
        @lan_id = UNSET_VALUE
        @nat = UNSET_VALUE
        @image_password = UNSET_VALUE
      end

      def finalize!
        @password = nil if @password == UNSET_VALUE
        @profitbricks_url = nil if @profitbricks_url == UNSET_VALUE
        @flavor = nil if @flavor == UNSET_VALUE
        @cores = 1 if @cores == UNSET_VALUE
        @ram   = 2048 if ram == UNSET_VALUE
        @server_name = nil if @server_name == UNSET_VALUE
        @datacenter_id = nil if @datacenter_id == UNSET_VALUE
        @username = nil if @username == UNSET_VALUE
        @volume_size = 5 if @volume_size == UNSET_VALUE
        @location = 'us/las' if @location == UNSET_VALUE
        @volume_type = 'HDD' if @volume_type == UNSET_VALUE
        @volume_licence_type = 'UNKNOWN' if @volume_licence_type == UNSET_VALUE
        @volume_availability_zone = 'AUTO' if @volume_availability_zone == UNSET_VALUE
        @public_ssh_keys = nil if @public_ssh_keys == UNSET_VALUE
        @cpu_family = 'AMD_OPTERON' if @cpu_family == UNSET_VALUE
        @lan_id = nil if @lan_id == UNSET_VALUE
        @nat = false if @nat == UNSET_VALUE
        @image_password = nil if @image_password == UNSET_VALUE
      end

      def validate(_machine)
        errors = _detected_errors

        errors << I18n.t('vagrant_profitbricks.config.password_required') unless @password
        errors << I18n.t('vagrant_profitbricks.config.username_required') unless @username
        errors << I18n.t('vagrant_profitbricks.config.datacenter_required') unless @datacenter_id
        errors << I18n.t('vagrant_profitbricks.config.image_or_image_alias_must_be_provided') if !@image && !@image_alias
        errors << I18n.t('vagrant_profitbricks.config.image_password_or_public_ssh_required') if !@public_ssh_keys && !@image_password

        {
          url: @profitbricks_url
        }.each_pair do |key, value|
          errors << I18n.t('vagrant_profitbricks.config.invalid_uri', key: key, uri: value) unless value.nil? || valid_uri?(value)
        end

        { 'ProfitBricks Provider' => errors }
      end

      private

      def valid_uri?(value)
        uri = URI.parse value
        uri.is_a?(URI::HTTP)
      end
    end
  end
end