// Copyright (c) Facebook, Inc. and its affiliates. 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 entc, DO NOT EDIT.

package ent

import (
	"context"

	"github.com/facebookincubator/ent/dialect/sql/sqlgraph"
	"github.com/facebookincubator/ent/entc/integration/customid/ent/group"
	"github.com/facebookincubator/ent/entc/integration/customid/ent/user"
	"github.com/facebookincubator/ent/schema/field"
)

// UserCreate is the builder for creating a User entity.
type UserCreate struct {
	config
	id     *int
	groups map[int]struct{}
}

// SetID sets the id field.
func (uc *UserCreate) SetID(i int) *UserCreate {
	uc.id = &i
	return uc
}

// AddGroupIDs adds the groups edge to Group by ids.
func (uc *UserCreate) AddGroupIDs(ids ...int) *UserCreate {
	if uc.groups == nil {
		uc.groups = make(map[int]struct{})
	}
	for i := range ids {
		uc.groups[ids[i]] = struct{}{}
	}
	return uc
}

// AddGroups adds the groups edges to Group.
func (uc *UserCreate) AddGroups(g ...*Group) *UserCreate {
	ids := make([]int, len(g))
	for i := range g {
		ids[i] = g[i].ID
	}
	return uc.AddGroupIDs(ids...)
}

// Save creates the User in the database.
func (uc *UserCreate) Save(ctx context.Context) (*User, error) {
	return uc.sqlSave(ctx)
}

// SaveX calls Save and panics if Save returns an error.
func (uc *UserCreate) SaveX(ctx context.Context) *User {
	v, err := uc.Save(ctx)
	if err != nil {
		panic(err)
	}
	return v
}

func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
	var (
		u    = &User{config: uc.config}
		spec = &sqlgraph.CreateSpec{
			Table: user.Table,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt,
				Column: user.FieldID,
			},
		}
	)
	if value := uc.id; value != nil {
		u.ID = *value
		spec.ID.Value = *value
	}
	if nodes := uc.groups; len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: true,
			Table:   user.GroupsTable,
			Columns: user.GroupsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: group.FieldID,
				},
			},
		}
		for k, _ := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		spec.Edges = append(spec.Edges, edge)
	}
	if err := sqlgraph.CreateNode(ctx, uc.driver, spec); err != nil {
		if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return nil, err
	}
	if u.ID == 0 {
		id := spec.ID.Value.(int64)
		u.ID = int(id)
	}
	return u, nil
}