// Code generated by ent, DO NOT EDIT.

package models

import (
	"context"
	"errors"
	"fmt"
	"juwan-backend/app/notification/rpc/internal/models/notifications"
	"juwan-backend/app/notification/rpc/internal/models/predicate"
	"sync"
	"time"

	"entgo.io/ent"
	"entgo.io/ent/dialect/sql"
)

const (
	// Operation types.
	OpCreate    = ent.OpCreate
	OpDelete    = ent.OpDelete
	OpDeleteOne = ent.OpDeleteOne
	OpUpdate    = ent.OpUpdate
	OpUpdateOne = ent.OpUpdateOne

	// Node types.
	TypeNotifications = "Notifications"
)

// NotificationsMutation represents an operation that mutates the Notifications nodes in the graph.
type NotificationsMutation struct {
	config
	op            Op
	typ           string
	id            *int64
	user_id       *int64
	adduser_id    *int64
	_type         *string
	title         *string
	content       *string
	read          *bool
	link          *string
	created_at    *time.Time
	updated_at    *time.Time
	clearedFields map[string]struct{}
	done          bool
	oldValue      func(context.Context) (*Notifications, error)
	predicates    []predicate.Notifications
}

var _ ent.Mutation = (*NotificationsMutation)(nil)

// notificationsOption allows management of the mutation configuration using functional options.
type notificationsOption func(*NotificationsMutation)

// newNotificationsMutation creates new mutation for the Notifications entity.
func newNotificationsMutation(c config, op Op, opts ...notificationsOption) *NotificationsMutation {
	m := &NotificationsMutation{
		config:        c,
		op:            op,
		typ:           TypeNotifications,
		clearedFields: make(map[string]struct{}),
	}
	for _, opt := range opts {
		opt(m)
	}
	return m
}

// withNotificationsID sets the ID field of the mutation.
func withNotificationsID(id int64) notificationsOption {
	return func(m *NotificationsMutation) {
		var (
			err   error
			once  sync.Once
			value *Notifications
		)
		m.oldValue = func(ctx context.Context) (*Notifications, error) {
			once.Do(func() {
				if m.done {
					err = errors.New("querying old values post mutation is not allowed")
				} else {
					value, err = m.Client().Notifications.Get(ctx, id)
				}
			})
			return value, err
		}
		m.id = &id
	}
}

// withNotifications sets the old Notifications of the mutation.
func withNotifications(node *Notifications) notificationsOption {
	return func(m *NotificationsMutation) {
		m.oldValue = func(context.Context) (*Notifications, error) {
			return node, nil
		}
		m.id = &node.ID
	}
}

// Client returns a new `ent.Client` from the mutation. If the mutation was
// executed in a transaction (ent.Tx), a transactional client is returned.
func (m NotificationsMutation) Client() *Client {
	client := &Client{config: m.config}
	client.init()
	return client
}

// Tx returns an `ent.Tx` for mutations that were executed in transactions;
// it returns an error otherwise.
func (m NotificationsMutation) Tx() (*Tx, error) {
	if _, ok := m.driver.(*txDriver); !ok {
		return nil, errors.New("models: mutation is not running in a transaction")
	}
	tx := &Tx{config: m.config}
	tx.init()
	return tx, nil
}

// SetID sets the value of the id field. Note that this
// operation is only accepted on creation of Notifications entities.
func (m *NotificationsMutation) SetID(id int64) {
	m.id = &id
}

// ID returns the ID value in the mutation. Note that the ID is only available
// if it was provided to the builder or after it was returned from the database.
func (m *NotificationsMutation) ID() (id int64, exists bool) {
	if m.id == nil {
		return
	}
	return *m.id, true
}

// IDs queries the database and returns the entity ids that match the mutation's predicate.
// That means, if the mutation is applied within a transaction with an isolation level such
// as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated
// or updated by the mutation.
func (m *NotificationsMutation) IDs(ctx context.Context) ([]int64, error) {
	switch {
	case m.op.Is(OpUpdateOne | OpDeleteOne):
		id, exists := m.ID()
		if exists {
			return []int64{id}, nil
		}
		fallthrough
	case m.op.Is(OpUpdate | OpDelete):
		return m.Client().Notifications.Query().Where(m.predicates...).IDs(ctx)
	default:
		return nil, fmt.Errorf("IDs is not allowed on %s operations", m.op)
	}
}

// SetUserID sets the "user_id" field.
func (m *NotificationsMutation) SetUserID(i int64) {
	m.user_id = &i
	m.adduser_id = nil
}

// UserID returns the value of the "user_id" field in the mutation.
func (m *NotificationsMutation) UserID() (r int64, exists bool) {
	v := m.user_id
	if v == nil {
		return
	}
	return *v, true
}

// OldUserID returns the old "user_id" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldUserID(ctx context.Context) (v int64, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldUserID is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldUserID requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldUserID: %w", err)
	}
	return oldValue.UserID, nil
}

// AddUserID adds i to the "user_id" field.
func (m *NotificationsMutation) AddUserID(i int64) {
	if m.adduser_id != nil {
		*m.adduser_id += i
	} else {
		m.adduser_id = &i
	}
}

// AddedUserID returns the value that was added to the "user_id" field in this mutation.
func (m *NotificationsMutation) AddedUserID() (r int64, exists bool) {
	v := m.adduser_id
	if v == nil {
		return
	}
	return *v, true
}

// ResetUserID resets all changes to the "user_id" field.
func (m *NotificationsMutation) ResetUserID() {
	m.user_id = nil
	m.adduser_id = nil
}

// SetType sets the "type" field.
func (m *NotificationsMutation) SetType(s string) {
	m._type = &s
}

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

// OldType returns the old "type" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldType(ctx context.Context) (v string, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldType is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldType requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldType: %w", err)
	}
	return oldValue.Type, nil
}

// ResetType resets all changes to the "type" field.
func (m *NotificationsMutation) ResetType() {
	m._type = nil
}

// SetTitle sets the "title" field.
func (m *NotificationsMutation) SetTitle(s string) {
	m.title = &s
}

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

// OldTitle returns the old "title" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldTitle(ctx context.Context) (v string, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldTitle is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldTitle requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldTitle: %w", err)
	}
	return oldValue.Title, nil
}

// ResetTitle resets all changes to the "title" field.
func (m *NotificationsMutation) ResetTitle() {
	m.title = nil
}

// SetContent sets the "content" field.
func (m *NotificationsMutation) SetContent(s string) {
	m.content = &s
}

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

// OldContent returns the old "content" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldContent(ctx context.Context) (v string, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldContent is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldContent requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldContent: %w", err)
	}
	return oldValue.Content, nil
}

// ResetContent resets all changes to the "content" field.
func (m *NotificationsMutation) ResetContent() {
	m.content = nil
}

// SetRead sets the "read" field.
func (m *NotificationsMutation) SetRead(b bool) {
	m.read = &b
}

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

// OldRead returns the old "read" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldRead(ctx context.Context) (v bool, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldRead is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldRead requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldRead: %w", err)
	}
	return oldValue.Read, nil
}

// ResetRead resets all changes to the "read" field.
func (m *NotificationsMutation) ResetRead() {
	m.read = nil
}

// SetLink sets the "link" field.
func (m *NotificationsMutation) SetLink(s string) {
	m.link = &s
}

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

// OldLink returns the old "link" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldLink(ctx context.Context) (v *string, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldLink is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldLink requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldLink: %w", err)
	}
	return oldValue.Link, nil
}

// ClearLink clears the value of the "link" field.
func (m *NotificationsMutation) ClearLink() {
	m.link = nil
	m.clearedFields[notifications.FieldLink] = struct{}{}
}

// LinkCleared returns if the "link" field was cleared in this mutation.
func (m *NotificationsMutation) LinkCleared() bool {
	_, ok := m.clearedFields[notifications.FieldLink]
	return ok
}

// ResetLink resets all changes to the "link" field.
func (m *NotificationsMutation) ResetLink() {
	m.link = nil
	delete(m.clearedFields, notifications.FieldLink)
}

// SetCreatedAt sets the "created_at" field.
func (m *NotificationsMutation) SetCreatedAt(t time.Time) {
	m.created_at = &t
}

// CreatedAt returns the value of the "created_at" field in the mutation.
func (m *NotificationsMutation) CreatedAt() (r time.Time, exists bool) {
	v := m.created_at
	if v == nil {
		return
	}
	return *v, true
}

// OldCreatedAt returns the old "created_at" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldCreatedAt(ctx context.Context) (v time.Time, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldCreatedAt is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldCreatedAt requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldCreatedAt: %w", err)
	}
	return oldValue.CreatedAt, nil
}

// ResetCreatedAt resets all changes to the "created_at" field.
func (m *NotificationsMutation) ResetCreatedAt() {
	m.created_at = nil
}

// SetUpdatedAt sets the "updated_at" field.
func (m *NotificationsMutation) SetUpdatedAt(t time.Time) {
	m.updated_at = &t
}

// UpdatedAt returns the value of the "updated_at" field in the mutation.
func (m *NotificationsMutation) UpdatedAt() (r time.Time, exists bool) {
	v := m.updated_at
	if v == nil {
		return
	}
	return *v, true
}

// OldUpdatedAt returns the old "updated_at" field's value of the Notifications entity.
// If the Notifications object wasn't provided to the builder, the object is fetched from the database.
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
func (m *NotificationsMutation) OldUpdatedAt(ctx context.Context) (v time.Time, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldUpdatedAt is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldUpdatedAt requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldUpdatedAt: %w", err)
	}
	return oldValue.UpdatedAt, nil
}

// ResetUpdatedAt resets all changes to the "updated_at" field.
func (m *NotificationsMutation) ResetUpdatedAt() {
	m.updated_at = nil
}

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

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

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

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

// Type returns the node type of this mutation (Notifications).
func (m *NotificationsMutation) 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 *NotificationsMutation) Fields() []string {
	fields := make([]string, 0, 8)
	if m.user_id != nil {
		fields = append(fields, notifications.FieldUserID)
	}
	if m._type != nil {
		fields = append(fields, notifications.FieldType)
	}
	if m.title != nil {
		fields = append(fields, notifications.FieldTitle)
	}
	if m.content != nil {
		fields = append(fields, notifications.FieldContent)
	}
	if m.read != nil {
		fields = append(fields, notifications.FieldRead)
	}
	if m.link != nil {
		fields = append(fields, notifications.FieldLink)
	}
	if m.created_at != nil {
		fields = append(fields, notifications.FieldCreatedAt)
	}
	if m.updated_at != nil {
		fields = append(fields, notifications.FieldUpdatedAt)
	}
	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 *NotificationsMutation) Field(name string) (ent.Value, bool) {
	switch name {
	case notifications.FieldUserID:
		return m.UserID()
	case notifications.FieldType:
		return m.GetType()
	case notifications.FieldTitle:
		return m.Title()
	case notifications.FieldContent:
		return m.Content()
	case notifications.FieldRead:
		return m.Read()
	case notifications.FieldLink:
		return m.Link()
	case notifications.FieldCreatedAt:
		return m.CreatedAt()
	case notifications.FieldUpdatedAt:
		return m.UpdatedAt()
	}
	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 *NotificationsMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
	switch name {
	case notifications.FieldUserID:
		return m.OldUserID(ctx)
	case notifications.FieldType:
		return m.OldType(ctx)
	case notifications.FieldTitle:
		return m.OldTitle(ctx)
	case notifications.FieldContent:
		return m.OldContent(ctx)
	case notifications.FieldRead:
		return m.OldRead(ctx)
	case notifications.FieldLink:
		return m.OldLink(ctx)
	case notifications.FieldCreatedAt:
		return m.OldCreatedAt(ctx)
	case notifications.FieldUpdatedAt:
		return m.OldUpdatedAt(ctx)
	}
	return nil, fmt.Errorf("unknown Notifications 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 *NotificationsMutation) SetField(name string, value ent.Value) error {
	switch name {
	case notifications.FieldUserID:
		v, ok := value.(int64)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetUserID(v)
		return nil
	case notifications.FieldType:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetType(v)
		return nil
	case notifications.FieldTitle:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetTitle(v)
		return nil
	case notifications.FieldContent:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetContent(v)
		return nil
	case notifications.FieldRead:
		v, ok := value.(bool)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetRead(v)
		return nil
	case notifications.FieldLink:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetLink(v)
		return nil
	case notifications.FieldCreatedAt:
		v, ok := value.(time.Time)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetCreatedAt(v)
		return nil
	case notifications.FieldUpdatedAt:
		v, ok := value.(time.Time)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetUpdatedAt(v)
		return nil
	}
	return fmt.Errorf("unknown Notifications field %s", name)
}

// AddedFields returns all numeric fields that were incremented/decremented during
// this mutation.
func (m *NotificationsMutation) AddedFields() []string {
	var fields []string
	if m.adduser_id != nil {
		fields = append(fields, notifications.FieldUserID)
	}
	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 *NotificationsMutation) AddedField(name string) (ent.Value, bool) {
	switch name {
	case notifications.FieldUserID:
		return m.AddedUserID()
	}
	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 *NotificationsMutation) AddField(name string, value ent.Value) error {
	switch name {
	case notifications.FieldUserID:
		v, ok := value.(int64)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.AddUserID(v)
		return nil
	}
	return fmt.Errorf("unknown Notifications numeric field %s", name)
}

// ClearedFields returns all nullable fields that were cleared during this
// mutation.
func (m *NotificationsMutation) ClearedFields() []string {
	var fields []string
	if m.FieldCleared(notifications.FieldLink) {
		fields = append(fields, notifications.FieldLink)
	}
	return fields
}

// FieldCleared returns a boolean indicating if a field with the given name was
// cleared in this mutation.
func (m *NotificationsMutation) 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 *NotificationsMutation) ClearField(name string) error {
	switch name {
	case notifications.FieldLink:
		m.ClearLink()
		return nil
	}
	return fmt.Errorf("unknown Notifications 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 *NotificationsMutation) ResetField(name string) error {
	switch name {
	case notifications.FieldUserID:
		m.ResetUserID()
		return nil
	case notifications.FieldType:
		m.ResetType()
		return nil
	case notifications.FieldTitle:
		m.ResetTitle()
		return nil
	case notifications.FieldContent:
		m.ResetContent()
		return nil
	case notifications.FieldRead:
		m.ResetRead()
		return nil
	case notifications.FieldLink:
		m.ResetLink()
		return nil
	case notifications.FieldCreatedAt:
		m.ResetCreatedAt()
		return nil
	case notifications.FieldUpdatedAt:
		m.ResetUpdatedAt()
		return nil
	}
	return fmt.Errorf("unknown Notifications field %s", name)
}

// AddedEdges returns all edge names that were set/added in this mutation.
func (m *NotificationsMutation) AddedEdges() []string {
	edges := make([]string, 0, 0)
	return edges
}

// AddedIDs returns all IDs (to other nodes) that were added for the given edge
// name in this mutation.
func (m *NotificationsMutation) AddedIDs(name string) []ent.Value {
	return nil
}

// RemovedEdges returns all edge names that were removed in this mutation.
func (m *NotificationsMutation) RemovedEdges() []string {
	edges := make([]string, 0, 0)
	return edges
}

// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
// the given name in this mutation.
func (m *NotificationsMutation) RemovedIDs(name string) []ent.Value {
	return nil
}

// ClearedEdges returns all edge names that were cleared in this mutation.
func (m *NotificationsMutation) ClearedEdges() []string {
	edges := make([]string, 0, 0)
	return edges
}

// EdgeCleared returns a boolean which indicates if the edge with the given name
// was cleared in this mutation.
func (m *NotificationsMutation) EdgeCleared(name string) bool {
	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 *NotificationsMutation) ClearEdge(name string) error {
	return fmt.Errorf("unknown Notifications 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 *NotificationsMutation) ResetEdge(name string) error {
	return fmt.Errorf("unknown Notifications edge %s", name)
}