// Code generated by entc, DO NOT EDIT.

package ent

import (
	"context"
	"fmt"
	"time"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/schema/field"
	"github.com/go-kratos/examples/blog/internal/data/ent/article"
	"github.com/go-kratos/examples/blog/internal/data/ent/comment"
	"github.com/go-kratos/examples/blog/internal/data/ent/predicate"
)

// CommentUpdate is the builder for updating Comment entities.
type CommentUpdate struct {
	config
	hooks    []Hook
	mutation *CommentMutation
}

// Where adds a new predicate for the CommentUpdate builder.
func (cu *CommentUpdate) Where(ps ...predicate.Comment) *CommentUpdate {
	cu.mutation.predicates = append(cu.mutation.predicates, ps...)
	return cu
}

// SetName sets the "name" field.
func (cu *CommentUpdate) SetName(s string) *CommentUpdate {
	cu.mutation.SetName(s)
	return cu
}

// SetContent sets the "content" field.
func (cu *CommentUpdate) SetContent(s string) *CommentUpdate {
	cu.mutation.SetContent(s)
	return cu
}

// SetCreatedAt sets the "created_at" field.
func (cu *CommentUpdate) SetCreatedAt(t time.Time) *CommentUpdate {
	cu.mutation.SetCreatedAt(t)
	return cu
}

// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
func (cu *CommentUpdate) SetNillableCreatedAt(t *time.Time) *CommentUpdate {
	if t != nil {
		cu.SetCreatedAt(*t)
	}
	return cu
}

// SetUpdatedAt sets the "updated_at" field.
func (cu *CommentUpdate) SetUpdatedAt(t time.Time) *CommentUpdate {
	cu.mutation.SetUpdatedAt(t)
	return cu
}

// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
func (cu *CommentUpdate) SetNillableUpdatedAt(t *time.Time) *CommentUpdate {
	if t != nil {
		cu.SetUpdatedAt(*t)
	}
	return cu
}

// SetPostID sets the "post" edge to the Article entity by ID.
func (cu *CommentUpdate) SetPostID(id int64) *CommentUpdate {
	cu.mutation.SetPostID(id)
	return cu
}

// SetNillablePostID sets the "post" edge to the Article entity by ID if the given value is not nil.
func (cu *CommentUpdate) SetNillablePostID(id *int64) *CommentUpdate {
	if id != nil {
		cu = cu.SetPostID(*id)
	}
	return cu
}

// SetPost sets the "post" edge to the Article entity.
func (cu *CommentUpdate) SetPost(a *Article) *CommentUpdate {
	return cu.SetPostID(a.ID)
}

// Mutation returns the CommentMutation object of the builder.
func (cu *CommentUpdate) Mutation() *CommentMutation {
	return cu.mutation
}

// ClearPost clears the "post" edge to the Article entity.
func (cu *CommentUpdate) ClearPost() *CommentUpdate {
	cu.mutation.ClearPost()
	return cu
}

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

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

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

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

func (cu *CommentUpdate) sqlSave(ctx context.Context) (n int, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   comment.Table,
			Columns: comment.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt64,
				Column: comment.FieldID,
			},
		},
	}
	if ps := cu.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := cu.mutation.Name(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: comment.FieldName,
		})
	}
	if value, ok := cu.mutation.Content(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: comment.FieldContent,
		})
	}
	if value, ok := cu.mutation.CreatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: comment.FieldCreatedAt,
		})
	}
	if value, ok := cu.mutation.UpdatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: comment.FieldUpdatedAt,
		})
	}
	if cu.mutation.PostCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   comment.PostTable,
			Columns: []string{comment.PostColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt64,
					Column: article.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := cu.mutation.PostIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   comment.PostTable,
			Columns: []string{comment.PostColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt64,
					Column: article.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	if n, err = sqlgraph.UpdateNodes(ctx, cu.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{comment.Label}
		} else if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return 0, err
	}
	return n, nil
}

// CommentUpdateOne is the builder for updating a single Comment entity.
type CommentUpdateOne struct {
	config
	hooks    []Hook
	mutation *CommentMutation
}

// SetName sets the "name" field.
func (cuo *CommentUpdateOne) SetName(s string) *CommentUpdateOne {
	cuo.mutation.SetName(s)
	return cuo
}

// SetContent sets the "content" field.
func (cuo *CommentUpdateOne) SetContent(s string) *CommentUpdateOne {
	cuo.mutation.SetContent(s)
	return cuo
}

// SetCreatedAt sets the "created_at" field.
func (cuo *CommentUpdateOne) SetCreatedAt(t time.Time) *CommentUpdateOne {
	cuo.mutation.SetCreatedAt(t)
	return cuo
}

// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
func (cuo *CommentUpdateOne) SetNillableCreatedAt(t *time.Time) *CommentUpdateOne {
	if t != nil {
		cuo.SetCreatedAt(*t)
	}
	return cuo
}

// SetUpdatedAt sets the "updated_at" field.
func (cuo *CommentUpdateOne) SetUpdatedAt(t time.Time) *CommentUpdateOne {
	cuo.mutation.SetUpdatedAt(t)
	return cuo
}

// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
func (cuo *CommentUpdateOne) SetNillableUpdatedAt(t *time.Time) *CommentUpdateOne {
	if t != nil {
		cuo.SetUpdatedAt(*t)
	}
	return cuo
}

// SetPostID sets the "post" edge to the Article entity by ID.
func (cuo *CommentUpdateOne) SetPostID(id int64) *CommentUpdateOne {
	cuo.mutation.SetPostID(id)
	return cuo
}

// SetNillablePostID sets the "post" edge to the Article entity by ID if the given value is not nil.
func (cuo *CommentUpdateOne) SetNillablePostID(id *int64) *CommentUpdateOne {
	if id != nil {
		cuo = cuo.SetPostID(*id)
	}
	return cuo
}

// SetPost sets the "post" edge to the Article entity.
func (cuo *CommentUpdateOne) SetPost(a *Article) *CommentUpdateOne {
	return cuo.SetPostID(a.ID)
}

// Mutation returns the CommentMutation object of the builder.
func (cuo *CommentUpdateOne) Mutation() *CommentMutation {
	return cuo.mutation
}

// ClearPost clears the "post" edge to the Article entity.
func (cuo *CommentUpdateOne) ClearPost() *CommentUpdateOne {
	cuo.mutation.ClearPost()
	return cuo
}

// Save executes the query and returns the updated Comment entity.
func (cuo *CommentUpdateOne) Save(ctx context.Context) (*Comment, error) {
	var (
		err  error
		node *Comment
	)
	if len(cuo.hooks) == 0 {
		node, err = cuo.sqlSave(ctx)
	} else {
		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
			mutation, ok := m.(*CommentMutation)
			if !ok {
				return nil, fmt.Errorf("unexpected mutation type %T", m)
			}
			cuo.mutation = mutation
			node, err = cuo.sqlSave(ctx)
			mutation.done = true
			return node, err
		})
		for i := len(cuo.hooks) - 1; i >= 0; i-- {
			mut = cuo.hooks[i](mut)
		}
		if _, err := mut.Mutate(ctx, cuo.mutation); err != nil {
			return nil, err
		}
	}
	return node, err
}

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

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

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

func (cuo *CommentUpdateOne) sqlSave(ctx context.Context) (_node *Comment, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   comment.Table,
			Columns: comment.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt64,
				Column: comment.FieldID,
			},
		},
	}
	id, ok := cuo.mutation.ID()
	if !ok {
		return nil, &ValidationError{Name: "ID", err: fmt.Errorf("missing Comment.ID for update")}
	}
	_spec.Node.ID.Value = id
	if ps := cuo.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := cuo.mutation.Name(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: comment.FieldName,
		})
	}
	if value, ok := cuo.mutation.Content(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: comment.FieldContent,
		})
	}
	if value, ok := cuo.mutation.CreatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: comment.FieldCreatedAt,
		})
	}
	if value, ok := cuo.mutation.UpdatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: comment.FieldUpdatedAt,
		})
	}
	if cuo.mutation.PostCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   comment.PostTable,
			Columns: []string{comment.PostColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt64,
					Column: article.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := cuo.mutation.PostIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   comment.PostTable,
			Columns: []string{comment.PostColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt64,
					Column: article.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	_node = &Comment{config: cuo.config}
	_spec.Assign = _node.assignValues
	_spec.ScanValues = _node.scanValues
	if err = sqlgraph.UpdateNode(ctx, cuo.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{comment.Label}
		} else if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return nil, err
	}
	return _node, nil
}