"fmt"
	"sort"

	apps "k8s.io/api/apps/v1"
	"k8s.io/klog/v2"
	"k8s.io/kubernetes/pkg/controller"
	deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
)

// rolloutRolling implements the logic for rolling a new replica set.
func (dc *DeploymentController) rolloutRolling(ctx context.Context, d *apps.Deployment, rsList []*apps.ReplicaSet) error {
	newRS, oldRSs, err := dc.getAllReplicaSetsAndSyncRevision(ctx, d, rsList, true)

apiVersion: release-notes/v2
kind: feature
area: installation
releaseNotes:
- |

      imageChangeParams:
        automatic: true
        containerNames:
          - "helloworld"
        from:
          kind: "ImageStreamTag"
          name: "hello-go-gke:1.0"
  strategy:
    type: "Rolling"
  paused: false
  revisionHistoryLimit: 2

            automatic: true
            containerNames:
              - "helloworld"
            from:
              kind: "ImageStreamTag"
              name: "hello-go-gke:1.0"
      strategy:
        type: "Rolling"
      paused: false
      revisionHistoryLimit: 2

      imageChangeParams:
        automatic: true
        containerNames:
          - "helloworld"
        from:
          kind: "ImageStreamTag"
          name: "hello-go-gke:1.0"
  strategy:
    type: "Rolling"
  paused: false
  revisionHistoryLimit: 2

	performedRollback := false
	if !deploymentutil.EqualIgnoreHash(&d.Spec.Template, &rs.Spec.Template) {
		logger.V(4).Info("Rolling back deployment to old template spec", "deployment", klog.KObj(d), "templateSpec", rs.Spec.Template.Spec)
		deploymentutil.SetFromReplicaSetTemplate(d, rs.Spec.Template)
		// set RS (the old RS we'll rolling back to) annotations back to the deployment;

			}
		}
	}
}

// SetDefaults_Deployment sets additional defaults compared to its counterpart
// in extensions. These addons are:
// - MaxUnavailable during rolling update set to 25% (1 in extensions)
// - MaxSurge value during rolling update set to 25% (1 in extensions)
// - RevisionHistoryLimit set to 2 (not set in extensions)
// - ProgressDeadlineSeconds set to 600s (not set in extensions)

	return RegisterDefaults(scheme)
}

// SetDefaults_Deployment sets additional defaults compared to its counterpart
// in extensions. These addons are:
// - MaxUnavailable during rolling update set to 25% (1 in extensions)
// - MaxSurge value during rolling update set to 25% (1 in extensions)
// - RevisionHistoryLimit set to 10 (not set in extensions)
// - ProgressDeadlineSeconds set to 600s (not set in extensions)

)

// DeploymentStrategy stores information about the strategy and rolling-update
// behavior of a deployment.
type DeploymentStrategy struct {
	// Type of deployment. Can be "Recreate" or "RollingUpdate". Default is RollingUpdate.
	// +optional
	Type DeploymentStrategyType

	// Rolling update config params. Present only if DeploymentStrategyType =
	// RollingUpdate.
	//---

	}
}

// SetDefaults_Deployment sets additional defaults compared to its counterpart
// in extensions. These addons are:
// - MaxUnavailable during rolling update set to 25% (1 in extensions)
// - MaxSurge value during rolling update set to 25% (1 in extensions)
// - RevisionHistoryLimit set to 10 (not set in extensions)
// - ProgressDeadlineSeconds set to 600s (not set in extensions)