// 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 user

import (
	"context"
	"fmt"

	"entgo.io/ent"
	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/examples/m2mrecur/ent/predicate"
)

// Mutation represents an operation that mutates the User nodes in the graph.
type Mutation struct {
	op               ent.Op
	typ              string
	age              *int
	addage           *int
	name             *string
	clearedFields    map[string]struct{}
	followers        map[int]struct{}
	removedfollowers map[int]struct{}
	clearedfollowers bool
	following        map[int]struct{}
	removedfollowing map[int]struct{}
	clearedfollowing bool
	predicates       []predicate.User
}

// NewMutation creates a new Mutation for the User entity.
func NewMutation(op ent.Op) *Mutation {
	return &Mutation{
		op:            op,
		typ:           "User",
		clearedFields: make(map[string]struct{}),
	}
}

// Predicates returns the list of predicates set on the mutation.
func (m *Mutation) Predicates() []predicate.User {
	return m.predicates
}

// SetAge sets the "age" field.
func (m *Mutation) SetAge(i int) {
	m.age = &i
	m.addage = nil
}

// Age returns the value of the "age" field in the mutation.
func (m *Mutation) Age() (r int, exists bool) {
	v := m.age
	if v == nil {
		return
	}
	return *v, true
}

// AddAge adds i to the "age" field.
func (m *Mutation) AddAge(i int) {
	if m.addage != nil {
		*m.addage += i
	} else {
		m.addage = &i
	}
}

// AddedAge returns the value that was added to the "age" field in this mutation.
func (m *Mutation) AddedAge() (r int, exists bool) {
	v := m.addage
	if v == nil {
		return
	}
	return *v, true
}

// ResetAge resets all changes to the "age" field.
func (m *Mutation) ResetAge() {
	m.age = nil
	m.addage = nil
}

// SetName sets the "name" field.
func (m *Mutation) SetName(s string) {
	m.name = &s
}

// Name returns the value of the "name" field in the mutation.
func (m *Mutation) Name() (r string, exists bool) {
	v := m.name
	if v == nil {
		return
	}
	return *v, true
}

// ResetName resets all changes to the "name" field.
func (m *Mutation) ResetName() {
	m.name = nil
}

// AddFollowerIDs adds the "followers" edge to the User entity by ids.
func (m *Mutation) AddFollowerIDs(ids ...int) {
	if m.followers == nil {
		m.followers = make(map[int]struct{})
	}
	for i := range ids {
		m.followers[ids[i]] = struct{}{}
	}
}

// ClearFollowers clears the "followers" edge to the User entity.
func (m *Mutation) ClearFollowers() {
	m.clearedfollowers = true
}

// FollowersCleared reports if the "followers" edge to the User entity was cleared.
func (m *Mutation) FollowersCleared() bool {
	return m.clearedfollowers
}

// RemoveFollowerIDs removes the "followers" edge to the User entity by IDs.
func (m *Mutation) RemoveFollowerIDs(ids ...int) {
	if m.removedfollowers == nil {
		m.removedfollowers = make(map[int]struct{})
	}
	for i := range ids {
		delete(m.followers, ids[i])
		m.removedfollowers[ids[i]] = struct{}{}
	}
}

// RemovedFollowers returns the removed IDs of the "followers" edge to the User entity.
func (m *Mutation) RemovedFollowersIDs() (ids []int) {
	for id := range m.removedfollowers {
		ids = append(ids, id)
	}
	return
}

// FollowersIDs returns the "followers" edge IDs in the mutation.
func (m *Mutation) FollowersIDs() (ids []int) {
	for id := range m.followers {
		ids = append(ids, id)
	}
	return
}

// ResetFollowers resets all changes to the "followers" edge.
func (m *Mutation) ResetFollowers() {
	m.followers = nil
	m.clearedfollowers = false
	m.removedfollowers = nil
}

// AddFollowingIDs adds the "following" edge to the User entity by ids.
func (m *Mutation) AddFollowingIDs(ids ...int) {
	if m.following == nil {
		m.following = make(map[int]struct{})
	}
	for i := range ids {
		m.following[ids[i]] = struct{}{}
	}
}

// ClearFollowing clears the "following" edge to the User entity.
func (m *Mutation) ClearFollowing() {
	m.clearedfollowing = true
}

// FollowingCleared reports if the "following" edge to the User entity was cleared.
func (m *Mutation) FollowingCleared() bool {
	return m.clearedfollowing
}

// RemoveFollowingIDs removes the "following" edge to the User entity by IDs.
func (m *Mutation) RemoveFollowingIDs(ids ...int) {
	if m.removedfollowing == nil {
		m.removedfollowing = make(map[int]struct{})
	}
	for i := range ids {
		delete(m.following, ids[i])
		m.removedfollowing[ids[i]] = struct{}{}
	}
}

// RemovedFollowing returns the removed IDs of the "following" edge to the User entity.
func (m *Mutation) RemovedFollowingIDs() (ids []int) {
	for id := range m.removedfollowing {
		ids = append(ids, id)
	}
	return
}

// FollowingIDs returns the "following" edge IDs in the mutation.
func (m *Mutation) FollowingIDs() (ids []int) {
	for id := range m.following {
		ids = append(ids, id)
	}
	return
}

// ResetFollowing resets all changes to the "following" edge.
func (m *Mutation) ResetFollowing() {
	m.following = nil
	m.clearedfollowing = false
	m.removedfollowing = nil
}

// Where appends a list predicates to the Mutation builder.
func (m *Mutation) Where(ps ...predicate.User) {
	m.predicates = append(m.predicates, ps...)
}

// WhereP appends storage-level predicates to the Mutation builder. Using this method,
// users can use type-assertion to append predicates that do not depend on any generated package.
func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
	p := make([]predicate.User, len(ps))
	for i := range ps {
		p[i] = ps[i]
	}
	m.Where(p...)
}

// Op returns the operation name.
func (m *Mutation) Op() ent.Op {
	return m.op
}

// SetOp allows setting the mutation operation.
func (m *Mutation) SetOp(op ent.Op) {
	m.op = op
}

// Type returns the node type of this mutation (User).
func (m *Mutation) Type() string {
	return m.typ
}

// Fields returns all fields that were changed during this mutation. Note that in
// order to get all numeric fields that were incremented/decremented, call
// AddedFields().
func (m *Mutation) Fields() []string {
	fields := make([]string, 0, 2)
	if m.age != nil {
		fields = append(fields, FieldAge)
	}
	if m.name != nil {
		fields = append(fields, FieldName)
	}
	return fields
}

// Field returns the value of a field with the given name. The second boolean
// return value indicates that this field was not set, or was not defined in the
// schema.
func (m *Mutation) Field(name string) (ent.Value, bool) {
	switch name {
	case FieldAge:
		return m.Age()
	case FieldName:
		return m.Name()
	}
	return nil, false
}

// OldField returns the old value of the field from the database. An error is
// returned if the mutation operation is not UpdateOne, or the query to the
// database failed.
func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
	return nil, fmt.Errorf("unknown User field %s", name)
}

// SetField sets the value of a field with the given name. It returns an error if
// the field is not defined in the schema, or if the type mismatched the field
// type.
func (m *Mutation) SetField(name string, value ent.Value) error {
	switch name {
	case FieldAge:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetAge(v)
		return nil
	case FieldName:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetName(v)
		return nil
	}
	return fmt.Errorf("unknown User field %s", name)
}

// AddedFields returns all numeric fields that were incremented/decremented during
// this mutation.
func (m *Mutation) AddedFields() []string {
	var fields []string
	if m.addage != nil {
		fields = append(fields, FieldAge)
	}
	return fields
}

// AddedField returns the numeric value that was incremented/decremented on a field
// with the given name. The second boolean return value indicates that this field
// was not set, or was not defined in the schema.
func (m *Mutation) AddedField(name string) (ent.Value, bool) {
	switch name {
	case FieldAge:
		return m.AddedAge()
	}
	return nil, false
}

// AddField adds the value to the field with the given name. It returns an error if
// the field is not defined in the schema, or if the type mismatched the field
// type.
func (m *Mutation) AddField(name string, value ent.Value) error {
	switch name {
	case FieldAge:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.AddAge(v)
		return nil
	}
	return fmt.Errorf("unknown User numeric field %s", name)
}

// ClearedFields returns all nullable fields that were cleared during this
// mutation.
func (m *Mutation) ClearedFields() []string {
	return nil
}

// FieldCleared returns a boolean indicating if a field with the given name was
// cleared in this mutation.
func (m *Mutation) FieldCleared(name string) bool {
	_, ok := m.clearedFields[name]
	return ok
}

// ClearField clears the value of the field with the given name. It returns an
// error if the field is not defined in the schema.
func (m *Mutation) ClearField(name string) error {
	return fmt.Errorf("unknown User nullable field %s", name)
}

// ResetField resets all changes in the mutation for the field with the given name.
// It returns an error if the field is not defined in the schema.
func (m *Mutation) ResetField(name string) error {
	switch name {
	case FieldAge:
		m.ResetAge()
		return nil
	case FieldName:
		m.ResetName()
		return nil
	}
	return fmt.Errorf("unknown User field %s", name)
}

// AddedEdges returns all edge names that were set/added in this mutation.
func (m *Mutation) AddedEdges() []string {
	edges := make([]string, 0, 2)
	if m.followers != nil {
		edges = append(edges, EdgeFollowers)
	}
	if m.following != nil {
		edges = append(edges, EdgeFollowing)
	}
	return edges
}

// AddedIDs returns all IDs (to other nodes) that were added for the given edge
// name in this mutation.
func (m *Mutation) AddedIDs(name string) []ent.Value {
	switch name {
	case EdgeFollowers:
		ids := make([]ent.Value, 0, len(m.followers))
		for id := range m.followers {
			ids = append(ids, id)
		}
		return ids
	case EdgeFollowing:
		ids := make([]ent.Value, 0, len(m.following))
		for id := range m.following {
			ids = append(ids, id)
		}
		return ids
	}
	return nil
}

// RemovedEdges returns all edge names that were removed in this mutation.
func (m *Mutation) RemovedEdges() []string {
	edges := make([]string, 0, 2)
	if m.removedfollowers != nil {
		edges = append(edges, EdgeFollowers)
	}
	if m.removedfollowing != nil {
		edges = append(edges, EdgeFollowing)
	}
	return edges
}

// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
// the given name in this mutation.
func (m *Mutation) RemovedIDs(name string) []ent.Value {
	switch name {
	case EdgeFollowers:
		ids := make([]ent.Value, 0, len(m.removedfollowers))
		for id := range m.removedfollowers {
			ids = append(ids, id)
		}
		return ids
	case EdgeFollowing:
		ids := make([]ent.Value, 0, len(m.removedfollowing))
		for id := range m.removedfollowing {
			ids = append(ids, id)
		}
		return ids
	}
	return nil
}

// ClearedEdges returns all edge names that were cleared in this mutation.
func (m *Mutation) ClearedEdges() []string {
	edges := make([]string, 0, 2)
	if m.clearedfollowers {
		edges = append(edges, EdgeFollowers)
	}
	if m.clearedfollowing {
		edges = append(edges, EdgeFollowing)
	}
	return edges
}

// EdgeCleared returns a boolean which indicates if the edge with the given name
// was cleared in this mutation.
func (m *Mutation) EdgeCleared(name string) bool {
	switch name {
	case EdgeFollowers:
		return m.clearedfollowers
	case EdgeFollowing:
		return m.clearedfollowing
	}
	return false
}

// ClearEdge clears the value of the edge with the given name. It returns an error
// if that edge is not defined in the schema.
func (m *Mutation) ClearEdge(name string) error {
	switch name {
	}
	return fmt.Errorf("unknown User unique edge %s", name)
}

// ResetEdge resets all changes to the edge with the given name in this mutation.
// It returns an error if the edge is not defined in the schema.
func (m *Mutation) ResetEdge(name string) error {
	switch name {
	case EdgeFollowers:
		m.ResetFollowers()
		return nil
	case EdgeFollowing:
		m.ResetFollowing()
		return nil
	}
	return fmt.Errorf("unknown User edge %s", name)
}