require "db/mongo/models/mongo_model"
require "providers/provider_factory"
require "db/mongo/models/model_with_provider"
require "db/validators/deploy_env/run_list"
require "db/validators/deploy_env/expiration"
require "db/validators/deploy_env/users"

module Devops
  module Model
    class DeployEnvBase < MongoModel

      include ModelWithProvider

      attr_accessor :identifier, :run_list, :expires, :users

      set_validators ::Validators::DeployEnv::RunList,
                     ::Validators::DeployEnv::Expiration,
                     ::Validators::DeployEnv::Users

      def initialize d={}
        self.identifier = d["identifier"]
        b = d["run_list"] || []
        self.run_list = b.uniq
        self.expires = d["expires"]
        self.provider = d["provider"]
        b = d["users"] || []
        self.users = b.uniq
      end

      def to_hash
        {
          "identifier" => self.identifier,
          "run_list" => self.run_list,
          "expires" => self.expires,
          "provider" => self.provider,
          "users" => self.users
        }
      end

      def add_users users
        self.users = (self.users + users).uniq
      end

      def build_error_message(message)
        "Deploy environment '#{self.identifier}'. " + message
      end

      def create_role project_id
        knife = KnifeFactory.instance
        if knife.nil?
          DevopsLogger.logger.error "Can not get knife instance"
          return nil
        end
        all_roles = knife.roles
        info = {}
        if all_roles.nil?
          msg = "Can't get roles list from chef"
          DevopsLogger.logger.error msg
          return {error: msg}
        end
        role_name = knife.role_name(project_id, self.identifier)
        begin
          if all_roles.include? role_name
            info[:exist] = role_name
          else
            knife.create_role role_name, project_id, self.identifier
            info[:new] = role_name
            DevopsLogger.logger.info "Role '#{role_name}' created"
          end
          self.run_list << "role[#{role_name}]"
        rescue => er
          info[:error] = role_name
          DevopsLogger.logger.error "Role '#{role_name}' can not be created: #{er.message}"
        end
        info
      end

    end
  end
end