mutation.go

// Code generated by ent, DO NOT EDIT.

package chatent

import (
	"context"
	"errors"
	"fmt"
	"sync"
	"time"

	"github.com/fanchunke/xgpt3/conversation/ent/chatent/message"
	"github.com/fanchunke/xgpt3/conversation/ent/chatent/predicate"
	"github.com/fanchunke/xgpt3/conversation/ent/chatent/session"

	"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.
	TypeMessage = "Message"
	TypeSession = "Session"
)

// MessageMutation represents an operation that mutates the Message nodes in the graph.
type MessageMutation struct {
	config
	op             Op
	typ            string
	id             *int
	from_user_id   *string
	to_user_id     *string
	content        *string
	created_at     *time.Time
	clearedFields  map[string]struct{}
	spouse         *int
	clearedspouse  bool
	session        *int
	clearedsession bool
	done           bool
	oldValue       func(context.Context) (*Message, error)
	predicates     []predicate.Message
}

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

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

// newMessageMutation creates new mutation for the Message entity.
func newMessageMutation(c config, op Op, opts ...messageOption) *MessageMutation {
	m := &MessageMutation{
		config:        c,
		op:            op,
		typ:           TypeMessage,
		clearedFields: make(map[string]struct{}),
	}
	for _, opt := range opts {
		opt(m)
	}
	return m
}

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

// withMessage sets the old Message of the mutation.
func withMessage(node *Message) messageOption {
	return func(m *MessageMutation) {
		m.oldValue = func(context.Context) (*Message, 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 MessageMutation) 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 MessageMutation) Tx() (*Tx, error) {
	if _, ok := m.driver.(*txDriver); !ok {
		return nil, errors.New("chatent: mutation is not running in a transaction")
	}
	tx := &Tx{config: m.config}
	tx.init()
	return tx, nil
}

// 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 *MessageMutation) ID() (id int, 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 *MessageMutation) IDs(ctx context.Context) ([]int, error) {
	switch {
	case m.op.Is(OpUpdateOne | OpDeleteOne):
		id, exists := m.ID()
		if exists {
			return []int{id}, nil
		}
		fallthrough
	case m.op.Is(OpUpdate | OpDelete):
		return m.Client().Message.Query().Where(m.predicates...).IDs(ctx)
	default:
		return nil, fmt.Errorf("IDs is not allowed on %s operations", m.op)
	}
}

// SetSessionID sets the "session_id" field.
func (m *MessageMutation) SetSessionID(i int) {
	m.session = &i
}

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

// OldSessionID returns the old "session_id" field's value of the Message entity.
// If the Message 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 *MessageMutation) OldSessionID(ctx context.Context) (v int, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldSessionID is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldSessionID requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldSessionID: %w", err)
	}
	return oldValue.SessionID, nil
}

// ClearSessionID clears the value of the "session_id" field.
func (m *MessageMutation) ClearSessionID() {
	m.session = nil
	m.clearedFields[message.FieldSessionID] = struct{}{}
}

// SessionIDCleared returns if the "session_id" field was cleared in this mutation.
func (m *MessageMutation) SessionIDCleared() bool {
	_, ok := m.clearedFields[message.FieldSessionID]
	return ok
}

// ResetSessionID resets all changes to the "session_id" field.
func (m *MessageMutation) ResetSessionID() {
	m.session = nil
	delete(m.clearedFields, message.FieldSessionID)
}

// SetFromUserID sets the "from_user_id" field.
func (m *MessageMutation) SetFromUserID(s string) {
	m.from_user_id = &s
}

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

// OldFromUserID returns the old "from_user_id" field's value of the Message entity.
// If the Message 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 *MessageMutation) OldFromUserID(ctx context.Context) (v string, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldFromUserID is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldFromUserID requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldFromUserID: %w", err)
	}
	return oldValue.FromUserID, nil
}

// ResetFromUserID resets all changes to the "from_user_id" field.
func (m *MessageMutation) ResetFromUserID() {
	m.from_user_id = nil
}

// SetToUserID sets the "to_user_id" field.
func (m *MessageMutation) SetToUserID(s string) {
	m.to_user_id = &s
}

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

// OldToUserID returns the old "to_user_id" field's value of the Message entity.
// If the Message 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 *MessageMutation) OldToUserID(ctx context.Context) (v string, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldToUserID is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldToUserID requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldToUserID: %w", err)
	}
	return oldValue.ToUserID, nil
}

// ResetToUserID resets all changes to the "to_user_id" field.
func (m *MessageMutation) ResetToUserID() {
	m.to_user_id = nil
}

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

// Content returns the value of the "content" field in the mutation.
func (m *MessageMutation) 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 Message entity.
// If the Message 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 *MessageMutation) 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 *MessageMutation) ResetContent() {
	m.content = nil
}

// SetSpouseID sets the "spouse_id" field.
func (m *MessageMutation) SetSpouseID(i int) {
	m.spouse = &i
}

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

// OldSpouseID returns the old "spouse_id" field's value of the Message entity.
// If the Message 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 *MessageMutation) OldSpouseID(ctx context.Context) (v int, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldSpouseID is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldSpouseID requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldSpouseID: %w", err)
	}
	return oldValue.SpouseID, nil
}

// ClearSpouseID clears the value of the "spouse_id" field.
func (m *MessageMutation) ClearSpouseID() {
	m.spouse = nil
	m.clearedFields[message.FieldSpouseID] = struct{}{}
}

// SpouseIDCleared returns if the "spouse_id" field was cleared in this mutation.
func (m *MessageMutation) SpouseIDCleared() bool {
	_, ok := m.clearedFields[message.FieldSpouseID]
	return ok
}

// ResetSpouseID resets all changes to the "spouse_id" field.
func (m *MessageMutation) ResetSpouseID() {
	m.spouse = nil
	delete(m.clearedFields, message.FieldSpouseID)
}

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

// CreatedAt returns the value of the "created_at" field in the mutation.
func (m *MessageMutation) 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 Message entity.
// If the Message 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 *MessageMutation) 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 *MessageMutation) ResetCreatedAt() {
	m.created_at = nil
}

// ClearSpouse clears the "spouse" edge to the Message entity.
func (m *MessageMutation) ClearSpouse() {
	m.clearedspouse = true
}

// SpouseCleared reports if the "spouse" edge to the Message entity was cleared.
func (m *MessageMutation) SpouseCleared() bool {
	return m.SpouseIDCleared() || m.clearedspouse
}

// SpouseIDs returns the "spouse" edge IDs in the mutation.
// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
// SpouseID instead. It exists only for internal usage by the builders.
func (m *MessageMutation) SpouseIDs() (ids []int) {
	if id := m.spouse; id != nil {
		ids = append(ids, *id)
	}
	return
}

// ResetSpouse resets all changes to the "spouse" edge.
func (m *MessageMutation) ResetSpouse() {
	m.spouse = nil
	m.clearedspouse = false
}

// ClearSession clears the "session" edge to the Session entity.
func (m *MessageMutation) ClearSession() {
	m.clearedsession = true
}

// SessionCleared reports if the "session" edge to the Session entity was cleared.
func (m *MessageMutation) SessionCleared() bool {
	return m.SessionIDCleared() || m.clearedsession
}

// SessionIDs returns the "session" edge IDs in the mutation.
// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
// SessionID instead. It exists only for internal usage by the builders.
func (m *MessageMutation) SessionIDs() (ids []int) {
	if id := m.session; id != nil {
		ids = append(ids, *id)
	}
	return
}

// ResetSession resets all changes to the "session" edge.
func (m *MessageMutation) ResetSession() {
	m.session = nil
	m.clearedsession = false
}

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

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

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

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

// Type returns the node type of this mutation (Message).
func (m *MessageMutation) 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 *MessageMutation) Fields() []string {
	fields := make([]string, 0, 6)
	if m.session != nil {
		fields = append(fields, message.FieldSessionID)
	}
	if m.from_user_id != nil {
		fields = append(fields, message.FieldFromUserID)
	}
	if m.to_user_id != nil {
		fields = append(fields, message.FieldToUserID)
	}
	if m.content != nil {
		fields = append(fields, message.FieldContent)
	}
	if m.spouse != nil {
		fields = append(fields, message.FieldSpouseID)
	}
	if m.created_at != nil {
		fields = append(fields, message.FieldCreatedAt)
	}
	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 *MessageMutation) Field(name string) (ent.Value, bool) {
	switch name {
	case message.FieldSessionID:
		return m.SessionID()
	case message.FieldFromUserID:
		return m.FromUserID()
	case message.FieldToUserID:
		return m.ToUserID()
	case message.FieldContent:
		return m.Content()
	case message.FieldSpouseID:
		return m.SpouseID()
	case message.FieldCreatedAt:
		return m.CreatedAt()
	}
	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 *MessageMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
	switch name {
	case message.FieldSessionID:
		return m.OldSessionID(ctx)
	case message.FieldFromUserID:
		return m.OldFromUserID(ctx)
	case message.FieldToUserID:
		return m.OldToUserID(ctx)
	case message.FieldContent:
		return m.OldContent(ctx)
	case message.FieldSpouseID:
		return m.OldSpouseID(ctx)
	case message.FieldCreatedAt:
		return m.OldCreatedAt(ctx)
	}
	return nil, fmt.Errorf("unknown Message 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 *MessageMutation) SetField(name string, value ent.Value) error {
	switch name {
	case message.FieldSessionID:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetSessionID(v)
		return nil
	case message.FieldFromUserID:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetFromUserID(v)
		return nil
	case message.FieldToUserID:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetToUserID(v)
		return nil
	case message.FieldContent:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetContent(v)
		return nil
	case message.FieldSpouseID:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetSpouseID(v)
		return nil
	case message.FieldCreatedAt:
		v, ok := value.(time.Time)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetCreatedAt(v)
		return nil
	}
	return fmt.Errorf("unknown Message field %s", name)
}

// AddedFields returns all numeric fields that were incremented/decremented during
// this mutation.
func (m *MessageMutation) AddedFields() []string {
	var fields []string
	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 *MessageMutation) AddedField(name string) (ent.Value, bool) {
	switch name {
	}
	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 *MessageMutation) AddField(name string, value ent.Value) error {
	switch name {
	}
	return fmt.Errorf("unknown Message numeric field %s", name)
}

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

// FieldCleared returns a boolean indicating if a field with the given name was
// cleared in this mutation.
func (m *MessageMutation) 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 *MessageMutation) ClearField(name string) error {
	switch name {
	case message.FieldSessionID:
		m.ClearSessionID()
		return nil
	case message.FieldSpouseID:
		m.ClearSpouseID()
		return nil
	}
	return fmt.Errorf("unknown Message 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 *MessageMutation) ResetField(name string) error {
	switch name {
	case message.FieldSessionID:
		m.ResetSessionID()
		return nil
	case message.FieldFromUserID:
		m.ResetFromUserID()
		return nil
	case message.FieldToUserID:
		m.ResetToUserID()
		return nil
	case message.FieldContent:
		m.ResetContent()
		return nil
	case message.FieldSpouseID:
		m.ResetSpouseID()
		return nil
	case message.FieldCreatedAt:
		m.ResetCreatedAt()
		return nil
	}
	return fmt.Errorf("unknown Message field %s", name)
}

// AddedEdges returns all edge names that were set/added in this mutation.
func (m *MessageMutation) AddedEdges() []string {
	edges := make([]string, 0, 2)
	if m.spouse != nil {
		edges = append(edges, message.EdgeSpouse)
	}
	if m.session != nil {
		edges = append(edges, message.EdgeSession)
	}
	return edges
}

// AddedIDs returns all IDs (to other nodes) that were added for the given edge
// name in this mutation.
func (m *MessageMutation) AddedIDs(name string) []ent.Value {
	switch name {
	case message.EdgeSpouse:
		if id := m.spouse; id != nil {
			return []ent.Value{*id}
		}
	case message.EdgeSession:
		if id := m.session; id != nil {
			return []ent.Value{*id}
		}
	}
	return nil
}

// RemovedEdges returns all edge names that were removed in this mutation.
func (m *MessageMutation) RemovedEdges() []string {
	edges := make([]string, 0, 2)
	return edges
}

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

// ClearedEdges returns all edge names that were cleared in this mutation.
func (m *MessageMutation) ClearedEdges() []string {
	edges := make([]string, 0, 2)
	if m.clearedspouse {
		edges = append(edges, message.EdgeSpouse)
	}
	if m.clearedsession {
		edges = append(edges, message.EdgeSession)
	}
	return edges
}

// EdgeCleared returns a boolean which indicates if the edge with the given name
// was cleared in this mutation.
func (m *MessageMutation) EdgeCleared(name string) bool {
	switch name {
	case message.EdgeSpouse:
		return m.clearedspouse
	case message.EdgeSession:
		return m.clearedsession
	}
	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 *MessageMutation) ClearEdge(name string) error {
	switch name {
	case message.EdgeSpouse:
		m.ClearSpouse()
		return nil
	case message.EdgeSession:
		m.ClearSession()
		return nil
	}
	return fmt.Errorf("unknown Message 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 *MessageMutation) ResetEdge(name string) error {
	switch name {
	case message.EdgeSpouse:
		m.ResetSpouse()
		return nil
	case message.EdgeSession:
		m.ResetSession()
		return nil
	}
	return fmt.Errorf("unknown Message edge %s", name)
}

// SessionMutation represents an operation that mutates the Session nodes in the graph.
type SessionMutation struct {
	config
	op              Op
	typ             string
	id              *int
	user_id         *string
	status          *bool
	created_at      *time.Time
	updated_at      *time.Time
	deleted_at      *int
	adddeleted_at   *int
	clearedFields   map[string]struct{}
	messages        map[int]struct{}
	removedmessages map[int]struct{}
	clearedmessages bool
	done            bool
	oldValue        func(context.Context) (*Session, error)
	predicates      []predicate.Session
}

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

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

// newSessionMutation creates new mutation for the Session entity.
func newSessionMutation(c config, op Op, opts ...sessionOption) *SessionMutation {
	m := &SessionMutation{
		config:        c,
		op:            op,
		typ:           TypeSession,
		clearedFields: make(map[string]struct{}),
	}
	for _, opt := range opts {
		opt(m)
	}
	return m
}

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

// withSession sets the old Session of the mutation.
func withSession(node *Session) sessionOption {
	return func(m *SessionMutation) {
		m.oldValue = func(context.Context) (*Session, 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 SessionMutation) 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 SessionMutation) Tx() (*Tx, error) {
	if _, ok := m.driver.(*txDriver); !ok {
		return nil, errors.New("chatent: mutation is not running in a transaction")
	}
	tx := &Tx{config: m.config}
	tx.init()
	return tx, nil
}

// 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 *SessionMutation) ID() (id int, 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 *SessionMutation) IDs(ctx context.Context) ([]int, error) {
	switch {
	case m.op.Is(OpUpdateOne | OpDeleteOne):
		id, exists := m.ID()
		if exists {
			return []int{id}, nil
		}
		fallthrough
	case m.op.Is(OpUpdate | OpDelete):
		return m.Client().Session.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 *SessionMutation) SetUserID(s string) {
	m.user_id = &s
}

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

// OldUserID returns the old "user_id" field's value of the Session entity.
// If the Session 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 *SessionMutation) OldUserID(ctx context.Context) (v string, 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
}

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

// SetStatus sets the "status" field.
func (m *SessionMutation) SetStatus(b bool) {
	m.status = &b
}

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

// OldStatus returns the old "status" field's value of the Session entity.
// If the Session 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 *SessionMutation) OldStatus(ctx context.Context) (v bool, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldStatus is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldStatus requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldStatus: %w", err)
	}
	return oldValue.Status, nil
}

// ResetStatus resets all changes to the "status" field.
func (m *SessionMutation) ResetStatus() {
	m.status = nil
}

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

// CreatedAt returns the value of the "created_at" field in the mutation.
func (m *SessionMutation) 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 Session entity.
// If the Session 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 *SessionMutation) 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 *SessionMutation) ResetCreatedAt() {
	m.created_at = nil
}

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

// UpdatedAt returns the value of the "updated_at" field in the mutation.
func (m *SessionMutation) 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 Session entity.
// If the Session 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 *SessionMutation) 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 *SessionMutation) ResetUpdatedAt() {
	m.updated_at = nil
}

// SetDeletedAt sets the "deleted_at" field.
func (m *SessionMutation) SetDeletedAt(i int) {
	m.deleted_at = &i
	m.adddeleted_at = nil
}

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

// OldDeletedAt returns the old "deleted_at" field's value of the Session entity.
// If the Session 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 *SessionMutation) OldDeletedAt(ctx context.Context) (v int, err error) {
	if !m.op.Is(OpUpdateOne) {
		return v, errors.New("OldDeletedAt is only allowed on UpdateOne operations")
	}
	if m.id == nil || m.oldValue == nil {
		return v, errors.New("OldDeletedAt requires an ID field in the mutation")
	}
	oldValue, err := m.oldValue(ctx)
	if err != nil {
		return v, fmt.Errorf("querying old value for OldDeletedAt: %w", err)
	}
	return oldValue.DeletedAt, nil
}

// AddDeletedAt adds i to the "deleted_at" field.
func (m *SessionMutation) AddDeletedAt(i int) {
	if m.adddeleted_at != nil {
		*m.adddeleted_at += i
	} else {
		m.adddeleted_at = &i
	}
}

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

// ResetDeletedAt resets all changes to the "deleted_at" field.
func (m *SessionMutation) ResetDeletedAt() {
	m.deleted_at = nil
	m.adddeleted_at = nil
}

// AddMessageIDs adds the "messages" edge to the Message entity by ids.
func (m *SessionMutation) AddMessageIDs(ids ...int) {
	if m.messages == nil {
		m.messages = make(map[int]struct{})
	}
	for i := range ids {
		m.messages[ids[i]] = struct{}{}
	}
}

// ClearMessages clears the "messages" edge to the Message entity.
func (m *SessionMutation) ClearMessages() {
	m.clearedmessages = true
}

// MessagesCleared reports if the "messages" edge to the Message entity was cleared.
func (m *SessionMutation) MessagesCleared() bool {
	return m.clearedmessages
}

// RemoveMessageIDs removes the "messages" edge to the Message entity by IDs.
func (m *SessionMutation) RemoveMessageIDs(ids ...int) {
	if m.removedmessages == nil {
		m.removedmessages = make(map[int]struct{})
	}
	for i := range ids {
		delete(m.messages, ids[i])
		m.removedmessages[ids[i]] = struct{}{}
	}
}

// RemovedMessages returns the removed IDs of the "messages" edge to the Message entity.
func (m *SessionMutation) RemovedMessagesIDs() (ids []int) {
	for id := range m.removedmessages {
		ids = append(ids, id)
	}
	return
}

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

// ResetMessages resets all changes to the "messages" edge.
func (m *SessionMutation) ResetMessages() {
	m.messages = nil
	m.clearedmessages = false
	m.removedmessages = nil
}

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

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

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

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

// Type returns the node type of this mutation (Session).
func (m *SessionMutation) 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 *SessionMutation) Fields() []string {
	fields := make([]string, 0, 5)
	if m.user_id != nil {
		fields = append(fields, session.FieldUserID)
	}
	if m.status != nil {
		fields = append(fields, session.FieldStatus)
	}
	if m.created_at != nil {
		fields = append(fields, session.FieldCreatedAt)
	}
	if m.updated_at != nil {
		fields = append(fields, session.FieldUpdatedAt)
	}
	if m.deleted_at != nil {
		fields = append(fields, session.FieldDeletedAt)
	}
	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 *SessionMutation) Field(name string) (ent.Value, bool) {
	switch name {
	case session.FieldUserID:
		return m.UserID()
	case session.FieldStatus:
		return m.Status()
	case session.FieldCreatedAt:
		return m.CreatedAt()
	case session.FieldUpdatedAt:
		return m.UpdatedAt()
	case session.FieldDeletedAt:
		return m.DeletedAt()
	}
	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 *SessionMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
	switch name {
	case session.FieldUserID:
		return m.OldUserID(ctx)
	case session.FieldStatus:
		return m.OldStatus(ctx)
	case session.FieldCreatedAt:
		return m.OldCreatedAt(ctx)
	case session.FieldUpdatedAt:
		return m.OldUpdatedAt(ctx)
	case session.FieldDeletedAt:
		return m.OldDeletedAt(ctx)
	}
	return nil, fmt.Errorf("unknown Session 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 *SessionMutation) SetField(name string, value ent.Value) error {
	switch name {
	case session.FieldUserID:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetUserID(v)
		return nil
	case session.FieldStatus:
		v, ok := value.(bool)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetStatus(v)
		return nil
	case session.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 session.FieldUpdatedAt:
		v, ok := value.(time.Time)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetUpdatedAt(v)
		return nil
	case session.FieldDeletedAt:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetDeletedAt(v)
		return nil
	}
	return fmt.Errorf("unknown Session field %s", name)
}

// AddedFields returns all numeric fields that were incremented/decremented during
// this mutation.
func (m *SessionMutation) AddedFields() []string {
	var fields []string
	if m.adddeleted_at != nil {
		fields = append(fields, session.FieldDeletedAt)
	}
	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 *SessionMutation) AddedField(name string) (ent.Value, bool) {
	switch name {
	case session.FieldDeletedAt:
		return m.AddedDeletedAt()
	}
	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 *SessionMutation) AddField(name string, value ent.Value) error {
	switch name {
	case session.FieldDeletedAt:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.AddDeletedAt(v)
		return nil
	}
	return fmt.Errorf("unknown Session numeric field %s", name)
}

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

// FieldCleared returns a boolean indicating if a field with the given name was
// cleared in this mutation.
func (m *SessionMutation) 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 *SessionMutation) ClearField(name string) error {
	return fmt.Errorf("unknown Session 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 *SessionMutation) ResetField(name string) error {
	switch name {
	case session.FieldUserID:
		m.ResetUserID()
		return nil
	case session.FieldStatus:
		m.ResetStatus()
		return nil
	case session.FieldCreatedAt:
		m.ResetCreatedAt()
		return nil
	case session.FieldUpdatedAt:
		m.ResetUpdatedAt()
		return nil
	case session.FieldDeletedAt:
		m.ResetDeletedAt()
		return nil
	}
	return fmt.Errorf("unknown Session field %s", name)
}

// AddedEdges returns all edge names that were set/added in this mutation.
func (m *SessionMutation) AddedEdges() []string {
	edges := make([]string, 0, 1)
	if m.messages != nil {
		edges = append(edges, session.EdgeMessages)
	}
	return edges
}

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

// RemovedEdges returns all edge names that were removed in this mutation.
func (m *SessionMutation) RemovedEdges() []string {
	edges := make([]string, 0, 1)
	if m.removedmessages != nil {
		edges = append(edges, session.EdgeMessages)
	}
	return edges
}

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

// ClearedEdges returns all edge names that were cleared in this mutation.
func (m *SessionMutation) ClearedEdges() []string {
	edges := make([]string, 0, 1)
	if m.clearedmessages {
		edges = append(edges, session.EdgeMessages)
	}
	return edges
}

// EdgeCleared returns a boolean which indicates if the edge with the given name
// was cleared in this mutation.
func (m *SessionMutation) EdgeCleared(name string) bool {
	switch name {
	case session.EdgeMessages:
		return m.clearedmessages
	}
	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 *SessionMutation) ClearEdge(name string) error {
	switch name {
	}
	return fmt.Errorf("unknown Session 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 *SessionMutation) ResetEdge(name string) error {
	switch name {
	case session.EdgeMessages:
		m.ResetMessages()
		return nil
	}
	return fmt.Errorf("unknown Session edge %s", name)
}