# frozen_string_literal: true

module API
  module Ml
    module Mlflow
      module ApiHelpers
        def check_api_read!
          not_found! unless can?(current_user, :read_model_experiments, user_project)
        end

        def check_api_write!
          unauthorized! unless can?(current_user, :write_model_experiments, user_project)
        end

        def resource_not_found!
          render_structured_api_error!({ error_code: 'RESOURCE_DOES_NOT_EXIST' }, 404)
        end

        def resource_already_exists!
          render_structured_api_error!({ error_code: 'RESOURCE_ALREADY_EXISTS' }, 400)
        end

        def invalid_parameter!(message = nil)
          render_structured_api_error!({ error_code: 'INVALID_PARAMETER_VALUE', message: message }, 400)
        end

        def experiment_repository
          ::Ml::ExperimentTracking::ExperimentRepository.new(user_project, current_user)
        end

        def candidate_repository
          ::Ml::ExperimentTracking::CandidateRepository.new(user_project, current_user)
        end

        def experiment
          @experiment ||= find_experiment!(params[:experiment_id], params[:experiment_name])
        end

        def candidate
          @candidate ||= find_candidate!(params[:run_id])
        end

        def find_experiment!(iid, name)
          experiment_repository.by_iid_or_name(iid: iid, name: name) || resource_not_found!
        end

        def find_candidate!(eid)
          candidate_repository.by_eid(eid) || resource_not_found!
        end

        def packages_url
          path = api_v4_projects_packages_generic_package_version_path(
            id: user_project.id, package_name: '', file_name: ''
          )
          path = path.delete_suffix('/package_version')

          "#{request.base_url}#{path}"
        end
      end
    end
  end
end