# frozen_string_literal: true

module API
  class Pipelines < Grape::API
    include PaginationParams

    before { authenticate_non_get! }

    params do
      requires :id, type: String, desc: 'The project ID'
    end
    resource :projects, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
      desc 'Get all Pipelines of the project' do
        detail 'This feature was introduced in GitLab 8.11.'
        success Entities::PipelineBasic
      end
      params do
        use :pagination
        optional :scope,    type: String, values: %w[running pending finished branches tags],
                            desc: 'The scope of pipelines'
        optional :status,   type: String, values: HasStatus::AVAILABLE_STATUSES,
                            desc: 'The status of pipelines'
        optional :ref,      type: String, desc: 'The ref of pipelines'
        optional :sha,      type: String, desc: 'The sha of pipelines'
        optional :yaml_errors, type: Boolean, desc: 'Returns pipelines with invalid configurations'
        optional :name,     type: String, desc: 'The name of the user who triggered pipelines'
        optional :username, type: String, desc: 'The username of the user who triggered pipelines'
        optional :updated_before, type: DateTime, desc: 'Return pipelines updated before the specified datetime. Format: ISO 8601 YYYY-MM-DDTHH:MM:SSZ'
        optional :updated_after, type: DateTime, desc: 'Return pipelines updated after the specified datetime. Format: ISO 8601 YYYY-MM-DDTHH:MM:SSZ'
        optional :order_by, type: String, values: Ci::PipelinesFinder::ALLOWED_INDEXED_COLUMNS, default: 'id',
                            desc: 'Order pipelines'
        optional :sort,     type: String, values: %w[asc desc], default: 'desc',
                            desc: 'Sort pipelines'
      end
      get ':id/pipelines' do
        authorize! :read_pipeline, user_project
        authorize! :read_build, user_project

        pipelines = Ci::PipelinesFinder.new(user_project, current_user, params).execute
        present paginate(pipelines), with: Entities::PipelineBasic
      end

      desc 'Create a new pipeline' do
        detail 'This feature was introduced in GitLab 8.14'
        success Entities::Pipeline
      end
      params do
        requires :ref, type: String, desc: 'Reference'
        optional :variables, Array, desc: 'Array of variables available in the pipeline'
      end
      post ':id/pipeline' do
        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-foss/issues/42124')

        authorize! :create_pipeline, user_project

        pipeline_params = declared_params(include_missing: false)
          .merge(variables_attributes: params[:variables])
          .except(:variables)

        new_pipeline = Ci::CreatePipelineService.new(user_project,
                                                     current_user,
                                                     pipeline_params)
                           .execute(:api, ignore_skip_ci: true, save_on_errors: false)

        if new_pipeline.persisted?
          present new_pipeline, with: Entities::Pipeline
        else
          render_validation_error!(new_pipeline)
        end
      end

      desc 'Gets a the latest pipeline for the project branch' do
        detail 'This feature was introduced in GitLab 12.3'
        success Entities::Pipeline
      end
      params do
        optional :ref, type: String, desc: 'branch ref of pipeline'
      end
      get ':id/pipelines/latest' do
        authorize! :read_pipeline, latest_pipeline

        present latest_pipeline, with: Entities::Pipeline
      end

      desc 'Gets a specific pipeline for the project' do
        detail 'This feature was introduced in GitLab 8.11'
        success Entities::Pipeline
      end
      params do
        requires :pipeline_id, type: Integer, desc: 'The pipeline ID'
      end
      get ':id/pipelines/:pipeline_id' do
        authorize! :read_pipeline, pipeline

        present pipeline, with: Entities::Pipeline
      end

      desc 'Gets the variables for a given pipeline' do
        detail 'This feature was introduced in GitLab 11.11'
        success Entities::Variable
      end
      params do
        requires :pipeline_id, type: Integer, desc: 'The pipeline ID'
      end
      get ':id/pipelines/:pipeline_id/variables' do
        authorize! :read_pipeline_variable, pipeline

        present pipeline.variables, with: Entities::Variable
      end

      desc 'Gets the test report for a given pipeline' do
        detail 'This feature was introduced in GitLab 13.0. Disabled by default behind feature flag `junit_pipeline_view`'
        success TestReportEntity
      end
      params do
        requires :pipeline_id, type: Integer, desc: 'The pipeline ID'
      end
      get ':id/pipelines/:pipeline_id/test_report' do
        not_found! unless Feature.enabled?(:junit_pipeline_view, user_project)

        authorize! :read_build, pipeline

        present pipeline.test_reports, with: TestReportEntity
      end

      desc 'Deletes a pipeline' do
        detail 'This feature was introduced in GitLab 11.6'
        http_codes [[204, 'Pipeline was deleted'], [403, 'Forbidden']]
      end
      params do
        requires :pipeline_id, type: Integer, desc: 'The pipeline ID'
      end
      delete ':id/pipelines/:pipeline_id' do
        authorize! :destroy_pipeline, pipeline

        destroy_conditionally!(pipeline) do
          ::Ci::DestroyPipelineService.new(user_project, current_user).execute(pipeline)
        end
      end

      desc 'Retry builds in the pipeline' do
        detail 'This feature was introduced in GitLab 8.11.'
        success Entities::Pipeline
      end
      params do
        requires :pipeline_id, type: Integer, desc: 'The pipeline ID'
      end
      post ':id/pipelines/:pipeline_id/retry' do
        authorize! :update_pipeline, pipeline

        pipeline.retry_failed(current_user)

        present pipeline, with: Entities::Pipeline
      end

      desc 'Cancel all builds in the pipeline' do
        detail 'This feature was introduced in GitLab 8.11.'
        success Entities::Pipeline
      end
      params do
        requires :pipeline_id, type: Integer, desc: 'The pipeline ID'
      end
      post ':id/pipelines/:pipeline_id/cancel' do
        authorize! :update_pipeline, pipeline

        pipeline.cancel_running

        status 200
        present pipeline.reset, with: Entities::Pipeline
      end
    end

    helpers do
      def pipeline
        strong_memoize(:pipeline) do
          user_project.ci_pipelines.find(params[:pipeline_id])
        end
      end

      def latest_pipeline
        strong_memoize(:latest_pipeline) do
          user_project.latest_pipeline_for_ref(params[:ref])
        end
      end
    end
  end
end
