// 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/migration/ent/predicate"
)

// Mutation represents an operation that mutates the User nodes in the graph.
type Mutation struct {
	op            ent.Op
	typ           string
	age           *float64
	addage        *float64
	first_name    *string
	last_name     *string
	tags          *[]string
	appendtags    []string
	clearedFields map[string]struct{}
	cards         map[int]struct{}
	removedcards  map[int]struct{}
	clearedcards  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(f float64) {
	m.age = &f
	m.addage = nil
}

// Age returns the value of the "age" field in the mutation.
func (m *Mutation) Age() (r float64, exists bool) {
	v := m.age
	if v == nil {
		return
	}
	return *v, true
}

// AddAge adds f to the "age" field.
func (m *Mutation) AddAge(f float64) {
	if m.addage != nil {
		*m.addage += f
	} else {
		m.addage = &f
	}
}

// AddedAge returns the value that was added to the "age" field in this mutation.
func (m *Mutation) AddedAge() (r float64, 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
}

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

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

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

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

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

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

// SetTags sets the "tags" field.
func (m *Mutation) SetTags(s []string) {
	m.tags = &s
	m.appendtags = nil
}

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

// AppendTags adds s to the "tags" field.
func (m *Mutation) AppendTags(s []string) {
	m.appendtags = append(m.appendtags, s...)
}

// AppendedTags returns the list of values that were appended to the "tags" field in this mutation.
func (m *Mutation) AppendedTags() ([]string, bool) {
	if len(m.appendtags) == 0 {
		return nil, false
	}
	return m.appendtags, true
}

// ClearTags clears the value of the "tags" field.
func (m *Mutation) ClearTags() {
	m.tags = nil
	m.appendtags = nil
	m.clearedFields[FieldTags] = struct{}{}
}

// TagsCleared returns if the "tags" field was cleared in this mutation.
func (m *Mutation) TagsCleared() bool {
	_, ok := m.clearedFields[FieldTags]
	return ok
}

// ResetTags resets all changes to the "tags" field.
func (m *Mutation) ResetTags() {
	m.tags = nil
	m.appendtags = nil
	delete(m.clearedFields, FieldTags)
}

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

// ClearCards clears the "cards" edge to the Card entity.
func (m *Mutation) ClearCards() {
	m.clearedcards = true
}

// CardsCleared reports if the "cards" edge to the Card entity was cleared.
func (m *Mutation) CardsCleared() bool {
	return m.clearedcards
}

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

// RemovedCards returns the removed IDs of the "cards" edge to the Card entity.
func (m *Mutation) RemovedCardsIDs() (ids []int) {
	for id := range m.removedcards {
		ids = append(ids, id)
	}
	return
}

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

// ResetCards resets all changes to the "cards" edge.
func (m *Mutation) ResetCards() {
	m.cards = nil
	m.clearedcards = false
	m.removedcards = 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, 4)
	if m.age != nil {
		fields = append(fields, FieldAge)
	}
	if m.first_name != nil {
		fields = append(fields, FieldFirstName)
	}
	if m.last_name != nil {
		fields = append(fields, FieldLastName)
	}
	if m.tags != nil {
		fields = append(fields, FieldTags)
	}
	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 FieldFirstName:
		return m.FirstName()
	case FieldLastName:
		return m.LastName()
	case FieldTags:
		return m.Tags()
	}
	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.(float64)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetAge(v)
		return nil
	case FieldFirstName:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetFirstName(v)
		return nil
	case FieldLastName:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetLastName(v)
		return nil
	case FieldTags:
		v, ok := value.([]string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetTags(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.(float64)
		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 {
	var fields []string
	if m.FieldCleared(FieldTags) {
		fields = append(fields, FieldTags)
	}
	return fields
}

// 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 {
	switch name {
	case FieldTags:
		m.ClearTags()
		return nil
	}
	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 FieldFirstName:
		m.ResetFirstName()
		return nil
	case FieldLastName:
		m.ResetLastName()
		return nil
	case FieldTags:
		m.ResetTags()
		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, 1)
	if m.cards != nil {
		edges = append(edges, EdgeCards)
	}
	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 EdgeCards:
		ids := make([]ent.Value, 0, len(m.cards))
		for id := range m.cards {
			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, 1)
	if m.removedcards != nil {
		edges = append(edges, EdgeCards)
	}
	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 EdgeCards:
		ids := make([]ent.Value, 0, len(m.removedcards))
		for id := range m.removedcards {
			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, 1)
	if m.clearedcards {
		edges = append(edges, EdgeCards)
	}
	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 EdgeCards:
		return m.clearedcards
	}
	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 EdgeCards:
		m.ResetCards()
		return nil
	}
	return fmt.Errorf("unknown User edge %s", name)
}