require "db/mongo/models/model_with_provider"
require "db/validators/stack_template/template_content"

module Devops
  module Model
    class StackTemplateBase < MongoModel

      include ModelWithProvider

      attr_accessor :id, :template_body, :provider, :owner
      # should be a hash like {'param_name' => {type: 'String', description: 'Description'}}
      attr_accessor :available_parameters

      types id: {type: String, empty: false},
            provider: {type: String, empty: false},
            template_body: {type: String, empty: false},
            owner: {type: String, empty: false}

      set_field_validators :id, [::Validators::FieldValidator::NotNil,
                                      ::Validators::FieldValidator::FieldType::String,
                                      ::Validators::FieldValidator::NotEmpty,
                                      ::Validators::FieldValidator::Name]

      set_field_validators :provider, [::Validators::FieldValidator::NotNil,
                                      ::Validators::FieldValidator::FieldType::String,
                                      ::Validators::FieldValidator::NotEmpty]

      set_field_validators :template_body, [::Validators::FieldValidator::NotNil,
                                      ::Validators::FieldValidator::FieldType::String,
                                      ::Validators::FieldValidator::NotEmpty]

      set_field_validators :owner, [::Validators::FieldValidator::NotNil,
                                      ::Validators::FieldValidator::FieldType::String,
                                      ::Validators::FieldValidator::NotEmpty]

      set_validators ::Validators::StackTemplate::TemplateContent

      def initialize(attrs)
        self.id = attrs['id']
        self.template_body = attrs['template_body']
        self.provider = attrs['provider']
        self.owner = attrs['owner']
        self.available_parameters = attrs['available_parameters']
        self
      end

      def to_hash_without_id
        {
          'provider' => provider,
          'template_body' => template_body,
          'owner' => owner,
          'available_parameters' => available_parameters
        }
      end

      def parse_parameters
        {}
      end

      # attrs should include:
      # - id (String)
      # - provider (String)
      # - template_body (String)
      def self.create(attrs)
        template = new(attrs)
        template.available_parameters = template.parse_parameters
        template
      end

      def self.build_from_bson(attrs)
        attrs['id'] = attrs["_id"]
        self.new(attrs)
      end

    end
  end
end