package managed_job

import (
	"flink-kube-operator/internal/crd/v1alpha1"
	"os"
	"strings"
	"time"

	"flink-kube-operator/pkg"

	api "github.com/logi-camp/go-flink-client"
	"go.uber.org/zap"
)

func (job ManagedJob) createSavepoint() error {
	if job.def.Status.JobId == nil {
		pkg.Logger.Debug("[managed-job] [savepoint] no job id")
		return v1alpha1.ErrNoJobId
	}
	pkg.Logger.Info("[managed-job] [savepoint] creating savepoint", zap.String("interval", job.def.Spec.SavepointInterval.String()))
	resp, err := job.client.SavePoints(*job.def.Status.JobId, os.Getenv("SAVEPOINT_PATH"), false)
	if err != nil {
		pkg.Logger.Error("[managed-job] [savepoint] error in creating savepoint", zap.Error(err))
		return err
	}
	pkg.Logger.Debug("[managed-job] [savepoint]", zap.Any("savepoint-resp", resp))

	job.crd.Patch(job.def.UID, map[string]interface{}{
		"status": map[string]interface{}{
			"savepointTriggerId": resp.RequestID,
		},
	})
	return nil
}

func (job ManagedJob) trackSavepoint() error {
	if job.def.Status.JobId == nil {
		pkg.Logger.Debug("[managed-job] [savepoint] no job id")
		return v1alpha1.ErrNoJobId
	}
	if job.def.Status.SavepointTriggerId == nil {
		pkg.Logger.Debug("[managed-job] [savepoint] no job id")
		return v1alpha1.ErrNoSavepointTriggerId
	}
	resp, err := job.client.TrackSavepoint(*job.def.Status.JobId, *job.def.Status.SavepointTriggerId)
	pkg.Logger.Debug("[managed-job] [savepoint] track savepoint",
		zap.Any("status.Id", resp.Status.Id),
		zap.Any("failureCause.stacktrace", resp.Operation.FailureCause.StackTrace),
		zap.Any("failureCause.class", resp.Operation.FailureCause.Class),
		zap.Error(err),
	)
	if err != nil || resp.Operation.FailureCause.Class != "" {
		if err != nil {
			if strings.IndexAny(err.Error(), "http status not 2xx: 404") == 0 {
				job.crd.Patch(job.def.UID, map[string]interface{}{
					"status": map[string]interface{}{
						"savepointTriggerId": nil,
					},
				})
			}
		} else {
			job.crd.Patch(job.def.UID, map[string]interface{}{
				"status": map[string]interface{}{
					"error": resp.Operation.FailureCause.StackTrace,
				},
			})
		}
	} else {
		if resp.Status.Id == api.SavepointStatusInCompleted {
			job.crd.Patch(job.def.UID, map[string]interface{}{
				"status": map[string]interface{}{
					"lastSavepointPath": resp.Operation.Location,
					"lastSavepointDate": time.Now().Format(time.RFC3339),
				},
			})
		}
	}

	return nil
}