// Copyright 2019-present Facebook Inc. All rights reserved.
// This source code is licensed under the Apache 2.0 license found
// in the LICENSE file in the root directory of this source tree.

// Code generated by ent, DO NOT EDIT.

package entv2

import (
	"context"
	"errors"
	"fmt"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/entc/integration/migrate/entv2/blog"
	"entgo.io/ent/entc/integration/migrate/entv2/predicate"
	"entgo.io/ent/entc/integration/migrate/entv2/user"
	"entgo.io/ent/schema/field"
)

// BlogUpdate is the builder for updating Blog entities.
type BlogUpdate struct {
	config
	hooks    []Hook
	mutation *BlogMutation
}

// Where appends a list predicates to the BlogUpdate builder.
func (bu *BlogUpdate) Where(ps ...predicate.Blog) *BlogUpdate {
	bu.mutation.Where(ps...)
	return bu
}

// AddAdminIDs adds the "admins" edge to the User entity by IDs.
func (bu *BlogUpdate) AddAdminIDs(ids ...int) *BlogUpdate {
	bu.mutation.AddAdminIDs(ids...)
	return bu
}

// AddAdmins adds the "admins" edges to the User entity.
func (bu *BlogUpdate) AddAdmins(u ...*User) *BlogUpdate {
	ids := make([]int, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return bu.AddAdminIDs(ids...)
}

// Mutation returns the BlogMutation object of the builder.
func (bu *BlogUpdate) Mutation() *BlogMutation {
	return bu.mutation
}

// ClearAdmins clears all "admins" edges to the User entity.
func (bu *BlogUpdate) ClearAdmins() *BlogUpdate {
	bu.mutation.ClearAdmins()
	return bu
}

// RemoveAdminIDs removes the "admins" edge to User entities by IDs.
func (bu *BlogUpdate) RemoveAdminIDs(ids ...int) *BlogUpdate {
	bu.mutation.RemoveAdminIDs(ids...)
	return bu
}

// RemoveAdmins removes "admins" edges to User entities.
func (bu *BlogUpdate) RemoveAdmins(u ...*User) *BlogUpdate {
	ids := make([]int, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return bu.RemoveAdminIDs(ids...)
}

// Save executes the query and returns the number of nodes affected by the update operation.
func (bu *BlogUpdate) Save(ctx context.Context) (int, error) {
	return withHooks[int, BlogMutation](ctx, bu.sqlSave, bu.mutation, bu.hooks)
}

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

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

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

func (bu *BlogUpdate) sqlSave(ctx context.Context) (n int, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   blog.Table,
			Columns: blog.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt,
				Column: blog.FieldID,
			},
		},
	}
	if ps := bu.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if bu.mutation.AdminsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   blog.AdminsTable,
			Columns: []string{blog.AdminsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: user.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := bu.mutation.RemovedAdminsIDs(); len(nodes) > 0 && !bu.mutation.AdminsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   blog.AdminsTable,
			Columns: []string{blog.AdminsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: user.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := bu.mutation.AdminsIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   blog.AdminsTable,
			Columns: []string{blog.AdminsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: user.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, bu.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{blog.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{msg: err.Error(), wrap: err}
		}
		return 0, err
	}
	bu.mutation.done = true
	return n, nil
}

// BlogUpdateOne is the builder for updating a single Blog entity.
type BlogUpdateOne struct {
	config
	fields   []string
	hooks    []Hook
	mutation *BlogMutation
}

// AddAdminIDs adds the "admins" edge to the User entity by IDs.
func (buo *BlogUpdateOne) AddAdminIDs(ids ...int) *BlogUpdateOne {
	buo.mutation.AddAdminIDs(ids...)
	return buo
}

// AddAdmins adds the "admins" edges to the User entity.
func (buo *BlogUpdateOne) AddAdmins(u ...*User) *BlogUpdateOne {
	ids := make([]int, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return buo.AddAdminIDs(ids...)
}

// Mutation returns the BlogMutation object of the builder.
func (buo *BlogUpdateOne) Mutation() *BlogMutation {
	return buo.mutation
}

// ClearAdmins clears all "admins" edges to the User entity.
func (buo *BlogUpdateOne) ClearAdmins() *BlogUpdateOne {
	buo.mutation.ClearAdmins()
	return buo
}

// RemoveAdminIDs removes the "admins" edge to User entities by IDs.
func (buo *BlogUpdateOne) RemoveAdminIDs(ids ...int) *BlogUpdateOne {
	buo.mutation.RemoveAdminIDs(ids...)
	return buo
}

// RemoveAdmins removes "admins" edges to User entities.
func (buo *BlogUpdateOne) RemoveAdmins(u ...*User) *BlogUpdateOne {
	ids := make([]int, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return buo.RemoveAdminIDs(ids...)
}

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

// Save executes the query and returns the updated Blog entity.
func (buo *BlogUpdateOne) Save(ctx context.Context) (*Blog, error) {
	return withHooks[*Blog, BlogMutation](ctx, buo.sqlSave, buo.mutation, buo.hooks)
}

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

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

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

func (buo *BlogUpdateOne) sqlSave(ctx context.Context) (_node *Blog, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   blog.Table,
			Columns: blog.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt,
				Column: blog.FieldID,
			},
		},
	}
	id, ok := buo.mutation.ID()
	if !ok {
		return nil, &ValidationError{Name: "id", err: errors.New(`entv2: missing "Blog.id" for update`)}
	}
	_spec.Node.ID.Value = id
	if fields := buo.fields; len(fields) > 0 {
		_spec.Node.Columns = make([]string, 0, len(fields))
		_spec.Node.Columns = append(_spec.Node.Columns, blog.FieldID)
		for _, f := range fields {
			if !blog.ValidColumn(f) {
				return nil, &ValidationError{Name: f, err: fmt.Errorf("entv2: invalid field %q for query", f)}
			}
			if f != blog.FieldID {
				_spec.Node.Columns = append(_spec.Node.Columns, f)
			}
		}
	}
	if ps := buo.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if buo.mutation.AdminsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   blog.AdminsTable,
			Columns: []string{blog.AdminsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: user.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := buo.mutation.RemovedAdminsIDs(); len(nodes) > 0 && !buo.mutation.AdminsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   blog.AdminsTable,
			Columns: []string{blog.AdminsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: user.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := buo.mutation.AdminsIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   blog.AdminsTable,
			Columns: []string{blog.AdminsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: user.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	_node = &Blog{config: buo.config}
	_spec.Assign = _node.assignValues
	_spec.ScanValues = _node.scanValues
	if err = sqlgraph.UpdateNode(ctx, buo.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{blog.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{msg: err.Error(), wrap: err}
		}
		return nil, err
	}
	buo.mutation.done = true
	return _node, nil
}