// Code generated by entc, DO NOT EDIT.

package ent

import (
	"context"
	"errors"
	"fmt"
	"time"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/schema/field"

	"github.com/pingcap/test-infra/common/model"
	"github.com/pingcap/test-infra/services/tcms/service/store/v2/ent/internal"
	"github.com/pingcap/test-infra/services/tcms/service/store/v2/ent/predicate"
	"github.com/pingcap/test-infra/services/tcms/service/store/v2/ent/triage"
)

// TriageUpdate is the builder for updating Triage entities.
type TriageUpdate struct {
	config
	hooks    []Hook
	mutation *TriageMutation
}

// Where appends a list predicates to the TriageUpdate builder.
func (tu *TriageUpdate) Where(ps ...predicate.Triage) *TriageUpdate {
	tu.mutation.Where(ps...)
	return tu
}

// SetTriagingUsers sets the "triagingUsers" field.
func (tu *TriageUpdate) SetTriagingUsers(m []model.ID) *TriageUpdate {
	tu.mutation.SetTriagingUsers(m)
	return tu
}

// SetToTriageCaseExecIDs sets the "toTriageCaseExecIDs" field.
func (tu *TriageUpdate) SetToTriageCaseExecIDs(m []model.ID) *TriageUpdate {
	tu.mutation.SetToTriageCaseExecIDs(m)
	return tu
}

// SetTriagedCaseExecIDs sets the "triagedCaseExecIDs" field.
func (tu *TriageUpdate) SetTriagedCaseExecIDs(m []model.ID) *TriageUpdate {
	tu.mutation.SetTriagedCaseExecIDs(m)
	return tu
}

// SetTriagePhase sets the "triagePhase" field.
func (tu *TriageUpdate) SetTriagePhase(mp model.TriagePhase) *TriageUpdate {
	tu.mutation.SetTriagePhase(mp)
	return tu
}

// SetNillableTriagePhase sets the "triagePhase" field if the given value is not nil.
func (tu *TriageUpdate) SetNillableTriagePhase(mp *model.TriagePhase) *TriageUpdate {
	if mp != nil {
		tu.SetTriagePhase(*mp)
	}
	return tu
}

// SetStartedAt sets the "startedAt" field.
func (tu *TriageUpdate) SetStartedAt(t time.Time) *TriageUpdate {
	tu.mutation.SetStartedAt(t)
	return tu
}

// SetNillableStartedAt sets the "startedAt" field if the given value is not nil.
func (tu *TriageUpdate) SetNillableStartedAt(t *time.Time) *TriageUpdate {
	if t != nil {
		tu.SetStartedAt(*t)
	}
	return tu
}

// ClearStartedAt clears the value of the "startedAt" field.
func (tu *TriageUpdate) ClearStartedAt() *TriageUpdate {
	tu.mutation.ClearStartedAt()
	return tu
}

// SetTriagedAt sets the "triagedAt" field.
func (tu *TriageUpdate) SetTriagedAt(t time.Time) *TriageUpdate {
	tu.mutation.SetTriagedAt(t)
	return tu
}

// SetNillableTriagedAt sets the "triagedAt" field if the given value is not nil.
func (tu *TriageUpdate) SetNillableTriagedAt(t *time.Time) *TriageUpdate {
	if t != nil {
		tu.SetTriagedAt(*t)
	}
	return tu
}

// ClearTriagedAt clears the value of the "triagedAt" field.
func (tu *TriageUpdate) ClearTriagedAt() *TriageUpdate {
	tu.mutation.ClearTriagedAt()
	return tu
}

// SetReasons sets the "reasons" field.
func (tu *TriageUpdate) SetReasons(mefr []model.CaseExecFailReason) *TriageUpdate {
	tu.mutation.SetReasons(mefr)
	return tu
}

// SetSolution sets the "solution" field.
func (tu *TriageUpdate) SetSolution(mfs model.ExecFailSolution) *TriageUpdate {
	tu.mutation.SetSolution(mfs)
	return tu
}

// SetNillableSolution sets the "solution" field if the given value is not nil.
func (tu *TriageUpdate) SetNillableSolution(mfs *model.ExecFailSolution) *TriageUpdate {
	if mfs != nil {
		tu.SetSolution(*mfs)
	}
	return tu
}

// SetNote sets the "note" field.
func (tu *TriageUpdate) SetNote(s string) *TriageUpdate {
	tu.mutation.SetNote(s)
	return tu
}

// SetNillableNote sets the "note" field if the given value is not nil.
func (tu *TriageUpdate) SetNillableNote(s *string) *TriageUpdate {
	if s != nil {
		tu.SetNote(*s)
	}
	return tu
}

// Mutation returns the TriageMutation object of the builder.
func (tu *TriageUpdate) Mutation() *TriageMutation {
	return tu.mutation
}

// Save executes the query and returns the number of nodes affected by the update operation.
func (tu *TriageUpdate) Save(ctx context.Context) (int, error) {
	var (
		err      error
		affected int
	)
	tu.defaults()
	if len(tu.hooks) == 0 {
		if err = tu.check(); err != nil {
			return 0, err
		}
		affected, err = tu.sqlSave(ctx)
	} else {
		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
			mutation, ok := m.(*TriageMutation)
			if !ok {
				return nil, fmt.Errorf("unexpected mutation type %T", m)
			}
			if err = tu.check(); err != nil {
				return 0, err
			}
			tu.mutation = mutation
			affected, err = tu.sqlSave(ctx)
			mutation.done = true
			return affected, err
		})
		for i := len(tu.hooks) - 1; i >= 0; i-- {
			if tu.hooks[i] == nil {
				return 0, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
			}
			mut = tu.hooks[i](mut)
		}
		if _, err := mut.Mutate(ctx, tu.mutation); err != nil {
			return 0, err
		}
	}
	return affected, err
}

// SaveX is like Save, but panics if an error occurs.
func (tu *TriageUpdate) SaveX(ctx context.Context) int {
	affected, err := tu.Save(ctx)
	if err != nil {
		panic(err)
	}
	return affected
}

// Exec executes the query.
func (tu *TriageUpdate) Exec(ctx context.Context) error {
	_, err := tu.Save(ctx)
	return err
}

// ExecX is like Exec, but panics if an error occurs.
func (tu *TriageUpdate) ExecX(ctx context.Context) {
	if err := tu.Exec(ctx); err != nil {
		panic(err)
	}
}

// defaults sets the default values of the builder before save.
func (tu *TriageUpdate) defaults() {
	if _, ok := tu.mutation.UpdatedAt(); !ok {
		v := triage.UpdateDefaultUpdatedAt()
		tu.mutation.SetUpdatedAt(v)
	}
}

// check runs all checks and user-defined validators on the builder.
func (tu *TriageUpdate) check() error {
	if v, ok := tu.mutation.TriagePhase(); ok {
		if err := triage.TriagePhaseValidator(v); err != nil {
			return &ValidationError{Name: "triagePhase", err: fmt.Errorf(`ent: validator failed for field "Triage.triagePhase": %w`, err)}
		}
	}
	if v, ok := tu.mutation.Solution(); ok {
		if err := triage.SolutionValidator(v); err != nil {
			return &ValidationError{Name: "solution", err: fmt.Errorf(`ent: validator failed for field "Triage.solution": %w`, err)}
		}
	}
	if v, ok := tu.mutation.Note(); ok {
		if err := triage.NoteValidator(v); err != nil {
			return &ValidationError{Name: "note", err: fmt.Errorf(`ent: validator failed for field "Triage.note": %w`, err)}
		}
	}
	return nil
}

func (tu *TriageUpdate) sqlSave(ctx context.Context) (n int, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   triage.Table,
			Columns: triage.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeUint64,
				Column: triage.FieldID,
			},
		},
	}
	if ps := tu.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := tu.mutation.UpdatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: triage.FieldUpdatedAt,
		})
	}
	if value, ok := tu.mutation.TriagingUsers(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldTriagingUsers,
		})
	}
	if value, ok := tu.mutation.ToTriageCaseExecIDs(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldToTriageCaseExecIDs,
		})
	}
	if value, ok := tu.mutation.TriagedCaseExecIDs(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldTriagedCaseExecIDs,
		})
	}
	if value, ok := tu.mutation.TriagePhase(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeEnum,
			Value:  value,
			Column: triage.FieldTriagePhase,
		})
	}
	if value, ok := tu.mutation.StartedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: triage.FieldStartedAt,
		})
	}
	if tu.mutation.StartedAtCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Column: triage.FieldStartedAt,
		})
	}
	if value, ok := tu.mutation.TriagedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: triage.FieldTriagedAt,
		})
	}
	if tu.mutation.TriagedAtCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Column: triage.FieldTriagedAt,
		})
	}
	if value, ok := tu.mutation.Reasons(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldReasons,
		})
	}
	if value, ok := tu.mutation.Solution(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeEnum,
			Value:  value,
			Column: triage.FieldSolution,
		})
	}
	if value, ok := tu.mutation.Note(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: triage.FieldNote,
		})
	}
	_spec.Node.Schema = tu.schemaConfig.Triage
	ctx = internal.NewSchemaConfigContext(ctx, tu.schemaConfig)
	if n, err = sqlgraph.UpdateNodes(ctx, tu.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{triage.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{err.Error(), err}
		}
		return 0, err
	}
	return n, nil
}

// TriageUpdateOne is the builder for updating a single Triage entity.
type TriageUpdateOne struct {
	config
	fields   []string
	hooks    []Hook
	mutation *TriageMutation
}

// SetTriagingUsers sets the "triagingUsers" field.
func (tuo *TriageUpdateOne) SetTriagingUsers(m []model.ID) *TriageUpdateOne {
	tuo.mutation.SetTriagingUsers(m)
	return tuo
}

// SetToTriageCaseExecIDs sets the "toTriageCaseExecIDs" field.
func (tuo *TriageUpdateOne) SetToTriageCaseExecIDs(m []model.ID) *TriageUpdateOne {
	tuo.mutation.SetToTriageCaseExecIDs(m)
	return tuo
}

// SetTriagedCaseExecIDs sets the "triagedCaseExecIDs" field.
func (tuo *TriageUpdateOne) SetTriagedCaseExecIDs(m []model.ID) *TriageUpdateOne {
	tuo.mutation.SetTriagedCaseExecIDs(m)
	return tuo
}

// SetTriagePhase sets the "triagePhase" field.
func (tuo *TriageUpdateOne) SetTriagePhase(mp model.TriagePhase) *TriageUpdateOne {
	tuo.mutation.SetTriagePhase(mp)
	return tuo
}

// SetNillableTriagePhase sets the "triagePhase" field if the given value is not nil.
func (tuo *TriageUpdateOne) SetNillableTriagePhase(mp *model.TriagePhase) *TriageUpdateOne {
	if mp != nil {
		tuo.SetTriagePhase(*mp)
	}
	return tuo
}

// SetStartedAt sets the "startedAt" field.
func (tuo *TriageUpdateOne) SetStartedAt(t time.Time) *TriageUpdateOne {
	tuo.mutation.SetStartedAt(t)
	return tuo
}

// SetNillableStartedAt sets the "startedAt" field if the given value is not nil.
func (tuo *TriageUpdateOne) SetNillableStartedAt(t *time.Time) *TriageUpdateOne {
	if t != nil {
		tuo.SetStartedAt(*t)
	}
	return tuo
}

// ClearStartedAt clears the value of the "startedAt" field.
func (tuo *TriageUpdateOne) ClearStartedAt() *TriageUpdateOne {
	tuo.mutation.ClearStartedAt()
	return tuo
}

// SetTriagedAt sets the "triagedAt" field.
func (tuo *TriageUpdateOne) SetTriagedAt(t time.Time) *TriageUpdateOne {
	tuo.mutation.SetTriagedAt(t)
	return tuo
}

// SetNillableTriagedAt sets the "triagedAt" field if the given value is not nil.
func (tuo *TriageUpdateOne) SetNillableTriagedAt(t *time.Time) *TriageUpdateOne {
	if t != nil {
		tuo.SetTriagedAt(*t)
	}
	return tuo
}

// ClearTriagedAt clears the value of the "triagedAt" field.
func (tuo *TriageUpdateOne) ClearTriagedAt() *TriageUpdateOne {
	tuo.mutation.ClearTriagedAt()
	return tuo
}

// SetReasons sets the "reasons" field.
func (tuo *TriageUpdateOne) SetReasons(mefr []model.CaseExecFailReason) *TriageUpdateOne {
	tuo.mutation.SetReasons(mefr)
	return tuo
}

// SetSolution sets the "solution" field.
func (tuo *TriageUpdateOne) SetSolution(mfs model.ExecFailSolution) *TriageUpdateOne {
	tuo.mutation.SetSolution(mfs)
	return tuo
}

// SetNillableSolution sets the "solution" field if the given value is not nil.
func (tuo *TriageUpdateOne) SetNillableSolution(mfs *model.ExecFailSolution) *TriageUpdateOne {
	if mfs != nil {
		tuo.SetSolution(*mfs)
	}
	return tuo
}

// SetNote sets the "note" field.
func (tuo *TriageUpdateOne) SetNote(s string) *TriageUpdateOne {
	tuo.mutation.SetNote(s)
	return tuo
}

// SetNillableNote sets the "note" field if the given value is not nil.
func (tuo *TriageUpdateOne) SetNillableNote(s *string) *TriageUpdateOne {
	if s != nil {
		tuo.SetNote(*s)
	}
	return tuo
}

// Mutation returns the TriageMutation object of the builder.
func (tuo *TriageUpdateOne) Mutation() *TriageMutation {
	return tuo.mutation
}

// Select allows selecting one or more fields (columns) of the returned entity.
// The default is selecting all fields defined in the entity schema.
func (tuo *TriageUpdateOne) Select(field string, fields ...string) *TriageUpdateOne {
	tuo.fields = append([]string{field}, fields...)
	return tuo
}

// Save executes the query and returns the updated Triage entity.
func (tuo *TriageUpdateOne) Save(ctx context.Context) (*Triage, error) {
	var (
		err  error
		node *Triage
	)
	tuo.defaults()
	if len(tuo.hooks) == 0 {
		if err = tuo.check(); err != nil {
			return nil, err
		}
		node, err = tuo.sqlSave(ctx)
	} else {
		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
			mutation, ok := m.(*TriageMutation)
			if !ok {
				return nil, fmt.Errorf("unexpected mutation type %T", m)
			}
			if err = tuo.check(); err != nil {
				return nil, err
			}
			tuo.mutation = mutation
			node, err = tuo.sqlSave(ctx)
			mutation.done = true
			return node, err
		})
		for i := len(tuo.hooks) - 1; i >= 0; i-- {
			if tuo.hooks[i] == nil {
				return nil, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
			}
			mut = tuo.hooks[i](mut)
		}
		if _, err := mut.Mutate(ctx, tuo.mutation); err != nil {
			return nil, err
		}
	}
	return node, err
}

// SaveX is like Save, but panics if an error occurs.
func (tuo *TriageUpdateOne) SaveX(ctx context.Context) *Triage {
	node, err := tuo.Save(ctx)
	if err != nil {
		panic(err)
	}
	return node
}

// Exec executes the query on the entity.
func (tuo *TriageUpdateOne) Exec(ctx context.Context) error {
	_, err := tuo.Save(ctx)
	return err
}

// ExecX is like Exec, but panics if an error occurs.
func (tuo *TriageUpdateOne) ExecX(ctx context.Context) {
	if err := tuo.Exec(ctx); err != nil {
		panic(err)
	}
}

// defaults sets the default values of the builder before save.
func (tuo *TriageUpdateOne) defaults() {
	if _, ok := tuo.mutation.UpdatedAt(); !ok {
		v := triage.UpdateDefaultUpdatedAt()
		tuo.mutation.SetUpdatedAt(v)
	}
}

// check runs all checks and user-defined validators on the builder.
func (tuo *TriageUpdateOne) check() error {
	if v, ok := tuo.mutation.TriagePhase(); ok {
		if err := triage.TriagePhaseValidator(v); err != nil {
			return &ValidationError{Name: "triagePhase", err: fmt.Errorf(`ent: validator failed for field "Triage.triagePhase": %w`, err)}
		}
	}
	if v, ok := tuo.mutation.Solution(); ok {
		if err := triage.SolutionValidator(v); err != nil {
			return &ValidationError{Name: "solution", err: fmt.Errorf(`ent: validator failed for field "Triage.solution": %w`, err)}
		}
	}
	if v, ok := tuo.mutation.Note(); ok {
		if err := triage.NoteValidator(v); err != nil {
			return &ValidationError{Name: "note", err: fmt.Errorf(`ent: validator failed for field "Triage.note": %w`, err)}
		}
	}
	return nil
}

func (tuo *TriageUpdateOne) sqlSave(ctx context.Context) (_node *Triage, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   triage.Table,
			Columns: triage.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeUint64,
				Column: triage.FieldID,
			},
		},
	}
	id, ok := tuo.mutation.ID()
	if !ok {
		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Triage.id" for update`)}
	}
	_spec.Node.ID.Value = id
	if fields := tuo.fields; len(fields) > 0 {
		_spec.Node.Columns = make([]string, 0, len(fields))
		_spec.Node.Columns = append(_spec.Node.Columns, triage.FieldID)
		for _, f := range fields {
			if !triage.ValidColumn(f) {
				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
			}
			if f != triage.FieldID {
				_spec.Node.Columns = append(_spec.Node.Columns, f)
			}
		}
	}
	if ps := tuo.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := tuo.mutation.UpdatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: triage.FieldUpdatedAt,
		})
	}
	if value, ok := tuo.mutation.TriagingUsers(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldTriagingUsers,
		})
	}
	if value, ok := tuo.mutation.ToTriageCaseExecIDs(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldToTriageCaseExecIDs,
		})
	}
	if value, ok := tuo.mutation.TriagedCaseExecIDs(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldTriagedCaseExecIDs,
		})
	}
	if value, ok := tuo.mutation.TriagePhase(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeEnum,
			Value:  value,
			Column: triage.FieldTriagePhase,
		})
	}
	if value, ok := tuo.mutation.StartedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: triage.FieldStartedAt,
		})
	}
	if tuo.mutation.StartedAtCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Column: triage.FieldStartedAt,
		})
	}
	if value, ok := tuo.mutation.TriagedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: triage.FieldTriagedAt,
		})
	}
	if tuo.mutation.TriagedAtCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Column: triage.FieldTriagedAt,
		})
	}
	if value, ok := tuo.mutation.Reasons(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeJSON,
			Value:  value,
			Column: triage.FieldReasons,
		})
	}
	if value, ok := tuo.mutation.Solution(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeEnum,
			Value:  value,
			Column: triage.FieldSolution,
		})
	}
	if value, ok := tuo.mutation.Note(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: triage.FieldNote,
		})
	}
	_spec.Node.Schema = tuo.schemaConfig.Triage
	ctx = internal.NewSchemaConfigContext(ctx, tuo.schemaConfig)
	_node = &Triage{config: tuo.config}
	_spec.Assign = _node.assignValues
	_spec.ScanValues = _node.scanValues
	if err = sqlgraph.UpdateNode(ctx, tuo.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{triage.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{err.Error(), err}
		}
		return nil, err
	}
	return _node, nil
}