// Code generated by ogen, DO NOT EDIT.

package openapi

import (
	"math/bits"
	"strconv"

	"github.com/go-faster/errors"
	"github.com/go-faster/jx"

	"github.com/ogen-go/ogen/validate"
)

// Encode implements json.Marshaler.
func (s *Error) Encode(e *jx.Encoder) {
	e.ObjStart()
	s.encodeFields(e)
	e.ObjEnd()
}

// encodeFields encodes fields.
func (s *Error) encodeFields(e *jx.Encoder) {
	{
		e.FieldStart("message")
		e.Str(s.Message)
	}
	{
		e.FieldStart("code")
		e.Int(s.Code)
	}
}

var jsonFieldsNameOfError = [2]string{
	0: "message",
	1: "code",
}

// Decode decodes Error from json.
func (s *Error) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode Error to nil")
	}
	var requiredBitSet [1]uint8

	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
		switch string(k) {
		case "message":
			requiredBitSet[0] |= 1 << 0
			if err := func() error {
				v, err := d.Str()
				s.Message = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"message\"")
			}
		case "code":
			requiredBitSet[0] |= 1 << 1
			if err := func() error {
				v, err := d.Int()
				s.Code = int(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"code\"")
			}
		default:
			return d.Skip()
		}
		return nil
	}); err != nil {
		return errors.Wrap(err, "decode Error")
	}
	// Validate required fields.
	var failures []validate.FieldError
	for i, mask := range [1]uint8{
		0b00000011,
	} {
		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
			// Mask only required fields and check equality to mask using XOR.
			//
			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
			// Bits of fields which would be set are actually bits of missed fields.
			missed := bits.OnesCount8(result)
			for bitN := 0; bitN < missed; bitN++ {
				bitIdx := bits.TrailingZeros8(result)
				fieldIdx := i*8 + bitIdx
				var name string
				if fieldIdx < len(jsonFieldsNameOfError) {
					name = jsonFieldsNameOfError[fieldIdx]
				} else {
					name = strconv.Itoa(fieldIdx)
				}
				failures = append(failures, validate.FieldError{
					Name:  name,
					Error: validate.ErrFieldRequired,
				})
				// Reset bit.
				result &^= 1 << bitIdx
			}
		}
	}
	if len(failures) > 0 {
		return &validate.Error{Fields: failures}
	}

	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s *Error) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *Error) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}

// Encode implements json.Marshaler.
func (s *Group) Encode(e *jx.Encoder) {
	e.ObjStart()
	s.encodeFields(e)
	e.ObjEnd()
}

// encodeFields encodes fields.
func (s *Group) encodeFields(e *jx.Encoder) {
	{
		e.FieldStart("id")
		s.ID.Encode(e)
	}
	{
		e.FieldStart("name")
		e.Str(s.Name)
	}
	{
		e.FieldStart("user_ids")
		e.ArrStart()
		for _, elem := range s.UserIds {
			elem.Encode(e)
		}
		e.ArrEnd()
	}
}

var jsonFieldsNameOfGroup = [3]string{
	0: "id",
	1: "name",
	2: "user_ids",
}

// Decode decodes Group from json.
func (s *Group) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode Group to nil")
	}
	var requiredBitSet [1]uint8

	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
		switch string(k) {
		case "id":
			requiredBitSet[0] |= 1 << 0
			if err := func() error {
				if err := s.ID.Decode(d); err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"id\"")
			}
		case "name":
			requiredBitSet[0] |= 1 << 1
			if err := func() error {
				v, err := d.Str()
				s.Name = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"name\"")
			}
		case "user_ids":
			requiredBitSet[0] |= 1 << 2
			if err := func() error {
				s.UserIds = make([]ID, 0)
				if err := d.Arr(func(d *jx.Decoder) error {
					var elem ID
					if err := elem.Decode(d); err != nil {
						return err
					}
					s.UserIds = append(s.UserIds, elem)
					return nil
				}); err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"user_ids\"")
			}
		default:
			return d.Skip()
		}
		return nil
	}); err != nil {
		return errors.Wrap(err, "decode Group")
	}
	// Validate required fields.
	var failures []validate.FieldError
	for i, mask := range [1]uint8{
		0b00000111,
	} {
		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
			// Mask only required fields and check equality to mask using XOR.
			//
			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
			// Bits of fields which would be set are actually bits of missed fields.
			missed := bits.OnesCount8(result)
			for bitN := 0; bitN < missed; bitN++ {
				bitIdx := bits.TrailingZeros8(result)
				fieldIdx := i*8 + bitIdx
				var name string
				if fieldIdx < len(jsonFieldsNameOfGroup) {
					name = jsonFieldsNameOfGroup[fieldIdx]
				} else {
					name = strconv.Itoa(fieldIdx)
				}
				failures = append(failures, validate.FieldError{
					Name:  name,
					Error: validate.ErrFieldRequired,
				})
				// Reset bit.
				result &^= 1 << bitIdx
			}
		}
	}
	if len(failures) > 0 {
		return &validate.Error{Fields: failures}
	}

	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s *Group) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *Group) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}

// Encode implements json.Marshaler.
func (s *GroupUpdate) Encode(e *jx.Encoder) {
	e.ObjStart()
	s.encodeFields(e)
	e.ObjEnd()
}

// encodeFields encodes fields.
func (s *GroupUpdate) encodeFields(e *jx.Encoder) {
	{
		e.FieldStart("name")
		e.Str(s.Name)
	}
}

var jsonFieldsNameOfGroupUpdate = [1]string{
	0: "name",
}

// Decode decodes GroupUpdate from json.
func (s *GroupUpdate) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode GroupUpdate to nil")
	}
	var requiredBitSet [1]uint8

	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
		switch string(k) {
		case "name":
			requiredBitSet[0] |= 1 << 0
			if err := func() error {
				v, err := d.Str()
				s.Name = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"name\"")
			}
		default:
			return d.Skip()
		}
		return nil
	}); err != nil {
		return errors.Wrap(err, "decode GroupUpdate")
	}
	// Validate required fields.
	var failures []validate.FieldError
	for i, mask := range [1]uint8{
		0b00000001,
	} {
		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
			// Mask only required fields and check equality to mask using XOR.
			//
			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
			// Bits of fields which would be set are actually bits of missed fields.
			missed := bits.OnesCount8(result)
			for bitN := 0; bitN < missed; bitN++ {
				bitIdx := bits.TrailingZeros8(result)
				fieldIdx := i*8 + bitIdx
				var name string
				if fieldIdx < len(jsonFieldsNameOfGroupUpdate) {
					name = jsonFieldsNameOfGroupUpdate[fieldIdx]
				} else {
					name = strconv.Itoa(fieldIdx)
				}
				failures = append(failures, validate.FieldError{
					Name:  name,
					Error: validate.ErrFieldRequired,
				})
				// Reset bit.
				result &^= 1 << bitIdx
			}
		}
	}
	if len(failures) > 0 {
		return &validate.Error{Fields: failures}
	}

	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s *GroupUpdate) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *GroupUpdate) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}

// Encode encodes ID as json.
func (s ID) Encode(e *jx.Encoder) {
	unwrapped := int64(s)

	e.Int64(unwrapped)
}

// Decode decodes ID from json.
func (s *ID) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode ID to nil")
	}
	var unwrapped int64
	if err := func() error {
		v, err := d.Int64()
		unwrapped = int64(v)
		if err != nil {
			return err
		}
		return nil
	}(); err != nil {
		return errors.Wrap(err, "alias")
	}
	*s = ID(unwrapped)
	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s ID) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *ID) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}

// Encode implements json.Marshaler.
func (s *Ok) Encode(e *jx.Encoder) {
	e.ObjStart()
	s.encodeFields(e)
	e.ObjEnd()
}

// encodeFields encodes fields.
func (s *Ok) encodeFields(e *jx.Encoder) {
	{
		e.FieldStart("message")
		e.Str(s.Message)
	}
}

var jsonFieldsNameOfOk = [1]string{
	0: "message",
}

// Decode decodes Ok from json.
func (s *Ok) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode Ok to nil")
	}
	var requiredBitSet [1]uint8

	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
		switch string(k) {
		case "message":
			requiredBitSet[0] |= 1 << 0
			if err := func() error {
				v, err := d.Str()
				s.Message = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"message\"")
			}
		default:
			return d.Skip()
		}
		return nil
	}); err != nil {
		return errors.Wrap(err, "decode Ok")
	}
	// Validate required fields.
	var failures []validate.FieldError
	for i, mask := range [1]uint8{
		0b00000001,
	} {
		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
			// Mask only required fields and check equality to mask using XOR.
			//
			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
			// Bits of fields which would be set are actually bits of missed fields.
			missed := bits.OnesCount8(result)
			for bitN := 0; bitN < missed; bitN++ {
				bitIdx := bits.TrailingZeros8(result)
				fieldIdx := i*8 + bitIdx
				var name string
				if fieldIdx < len(jsonFieldsNameOfOk) {
					name = jsonFieldsNameOfOk[fieldIdx]
				} else {
					name = strconv.Itoa(fieldIdx)
				}
				failures = append(failures, validate.FieldError{
					Name:  name,
					Error: validate.ErrFieldRequired,
				})
				// Reset bit.
				result &^= 1 << bitIdx
			}
		}
	}
	if len(failures) > 0 {
		return &validate.Error{Fields: failures}
	}

	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s *Ok) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *Ok) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}

// Encode implements json.Marshaler.
func (s *User) Encode(e *jx.Encoder) {
	e.ObjStart()
	s.encodeFields(e)
	e.ObjEnd()
}

// encodeFields encodes fields.
func (s *User) encodeFields(e *jx.Encoder) {
	{
		e.FieldStart("id")
		s.ID.Encode(e)
	}
	{
		e.FieldStart("name")
		e.Str(s.Name)
	}
	{
		e.FieldStart("email")
		e.Str(s.Email)
	}
	{
		e.FieldStart("group_id")
		s.GroupID.Encode(e)
	}
}

var jsonFieldsNameOfUser = [4]string{
	0: "id",
	1: "name",
	2: "email",
	3: "group_id",
}

// Decode decodes User from json.
func (s *User) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode User to nil")
	}
	var requiredBitSet [1]uint8

	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
		switch string(k) {
		case "id":
			requiredBitSet[0] |= 1 << 0
			if err := func() error {
				if err := s.ID.Decode(d); err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"id\"")
			}
		case "name":
			requiredBitSet[0] |= 1 << 1
			if err := func() error {
				v, err := d.Str()
				s.Name = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"name\"")
			}
		case "email":
			requiredBitSet[0] |= 1 << 2
			if err := func() error {
				v, err := d.Str()
				s.Email = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"email\"")
			}
		case "group_id":
			requiredBitSet[0] |= 1 << 3
			if err := func() error {
				if err := s.GroupID.Decode(d); err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"group_id\"")
			}
		default:
			return d.Skip()
		}
		return nil
	}); err != nil {
		return errors.Wrap(err, "decode User")
	}
	// Validate required fields.
	var failures []validate.FieldError
	for i, mask := range [1]uint8{
		0b00001111,
	} {
		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
			// Mask only required fields and check equality to mask using XOR.
			//
			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
			// Bits of fields which would be set are actually bits of missed fields.
			missed := bits.OnesCount8(result)
			for bitN := 0; bitN < missed; bitN++ {
				bitIdx := bits.TrailingZeros8(result)
				fieldIdx := i*8 + bitIdx
				var name string
				if fieldIdx < len(jsonFieldsNameOfUser) {
					name = jsonFieldsNameOfUser[fieldIdx]
				} else {
					name = strconv.Itoa(fieldIdx)
				}
				failures = append(failures, validate.FieldError{
					Name:  name,
					Error: validate.ErrFieldRequired,
				})
				// Reset bit.
				result &^= 1 << bitIdx
			}
		}
	}
	if len(failures) > 0 {
		return &validate.Error{Fields: failures}
	}

	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s *User) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *User) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}

// Encode implements json.Marshaler.
func (s *UserUpdate) Encode(e *jx.Encoder) {
	e.ObjStart()
	s.encodeFields(e)
	e.ObjEnd()
}

// encodeFields encodes fields.
func (s *UserUpdate) encodeFields(e *jx.Encoder) {
	{
		e.FieldStart("name")
		e.Str(s.Name)
	}
	{
		e.FieldStart("email")
		e.Str(s.Email)
	}
	{
		e.FieldStart("group_id")
		s.GroupID.Encode(e)
	}
}

var jsonFieldsNameOfUserUpdate = [3]string{
	0: "name",
	1: "email",
	2: "group_id",
}

// Decode decodes UserUpdate from json.
func (s *UserUpdate) Decode(d *jx.Decoder) error {
	if s == nil {
		return errors.New("invalid: unable to decode UserUpdate to nil")
	}
	var requiredBitSet [1]uint8

	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
		switch string(k) {
		case "name":
			requiredBitSet[0] |= 1 << 0
			if err := func() error {
				v, err := d.Str()
				s.Name = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"name\"")
			}
		case "email":
			requiredBitSet[0] |= 1 << 1
			if err := func() error {
				v, err := d.Str()
				s.Email = string(v)
				if err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"email\"")
			}
		case "group_id":
			requiredBitSet[0] |= 1 << 2
			if err := func() error {
				if err := s.GroupID.Decode(d); err != nil {
					return err
				}
				return nil
			}(); err != nil {
				return errors.Wrap(err, "decode field \"group_id\"")
			}
		default:
			return d.Skip()
		}
		return nil
	}); err != nil {
		return errors.Wrap(err, "decode UserUpdate")
	}
	// Validate required fields.
	var failures []validate.FieldError
	for i, mask := range [1]uint8{
		0b00000111,
	} {
		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
			// Mask only required fields and check equality to mask using XOR.
			//
			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
			// Bits of fields which would be set are actually bits of missed fields.
			missed := bits.OnesCount8(result)
			for bitN := 0; bitN < missed; bitN++ {
				bitIdx := bits.TrailingZeros8(result)
				fieldIdx := i*8 + bitIdx
				var name string
				if fieldIdx < len(jsonFieldsNameOfUserUpdate) {
					name = jsonFieldsNameOfUserUpdate[fieldIdx]
				} else {
					name = strconv.Itoa(fieldIdx)
				}
				failures = append(failures, validate.FieldError{
					Name:  name,
					Error: validate.ErrFieldRequired,
				})
				// Reset bit.
				result &^= 1 << bitIdx
			}
		}
	}
	if len(failures) > 0 {
		return &validate.Error{Fields: failures}
	}

	return nil
}

// MarshalJSON implements stdjson.Marshaler.
func (s *UserUpdate) MarshalJSON() ([]byte, error) {
	e := jx.Encoder{}
	s.Encode(&e)
	return e.Bytes(), nil
}

// UnmarshalJSON implements stdjson.Unmarshaler.
func (s *UserUpdate) UnmarshalJSON(data []byte) error {
	d := jx.DecodeBytes(data)
	return s.Decode(d)
}