Source File
	tl_account_check_username_gen.go

Belonging Package
	github.com/gotd/td/tg

// Code generated by gotdgen, DO NOT EDIT.

package tg

import (
	"context"
	"errors"
	"fmt"
	"sort"
	"strings"

	"go.uber.org/multierr"

	"github.com/gotd/td/bin"
	"github.com/gotd/td/tdjson"
	"github.com/gotd/td/tdp"
	"github.com/gotd/td/tgerr"
)

// No-op definition for keeping imports.
var (
	_ = bin.Buffer{}
	_ = context.Background()
	_ = fmt.Stringer(nil)
	_ = strings.Builder{}
	_ = errors.Is
	_ = multierr.AppendInto
	_ = sort.Ints
	_ = tdp.Format
	_ = tgerr.Error{}
	_ = tdjson.Encoder{}
)

// AccountCheckUsernameRequest represents TL type `account.checkUsername#2714d86c`.
// Validates a username and checks availability.
//
// See https://core.telegram.org/method/account.checkUsername for reference.
type AccountCheckUsernameRequest struct {
	// usernameAccepted characters: A-z (case-insensitive), 0-9 and underscores.Length: 5-32
	// characters.
	Username string
}

// AccountCheckUsernameRequestTypeID is TL type id of AccountCheckUsernameRequest.
const AccountCheckUsernameRequestTypeID = 0x2714d86c

// Ensuring interfaces in compile-time for AccountCheckUsernameRequest.
var (
	_ bin.Encoder     = &AccountCheckUsernameRequest{}
	_ bin.Decoder     = &AccountCheckUsernameRequest{}
	_ bin.BareEncoder = &AccountCheckUsernameRequest{}
	_ bin.BareDecoder = &AccountCheckUsernameRequest{}
)

func (c *AccountCheckUsernameRequest) Zero() bool {
	if c == nil {
		return true
	}
	if !(c.Username == "") {
		return false
	}

	return true
}

// String implements fmt.Stringer.
func (c *AccountCheckUsernameRequest) String() string {
	if c == nil {
		return "AccountCheckUsernameRequest(nil)"
	}
	type Alias AccountCheckUsernameRequest
	return fmt.Sprintf("AccountCheckUsernameRequest%+v", Alias(*c))
}

// FillFrom fills AccountCheckUsernameRequest from given interface.
func (c *AccountCheckUsernameRequest) FillFrom(from interface {
	GetUsername() (value string)
}) {
	c.Username = from.GetUsername()
}

// TypeID returns type id in TL schema.
//
// See https://core.telegram.org/mtproto/TL-tl#remarks.
func (*AccountCheckUsernameRequest) TypeID() uint32 {
	return AccountCheckUsernameRequestTypeID
}

// TypeName returns name of type in TL schema.
func (*AccountCheckUsernameRequest) TypeName() string {
	return "account.checkUsername"
}

// TypeInfo returns info about TL type.
func (c *AccountCheckUsernameRequest) TypeInfo() tdp.Type {
	typ := tdp.Type{
		Name: "account.checkUsername",
		ID:   AccountCheckUsernameRequestTypeID,
	}
	if c == nil {
		typ.Null = true
		return typ
	}
	typ.Fields = []tdp.Field{
		{
			Name:       "Username",
			SchemaName: "username",
		},
	}
	return typ
}

// Encode implements bin.Encoder.
func (c *AccountCheckUsernameRequest) Encode(b *bin.Buffer) error {
	if c == nil {
		return fmt.Errorf("can't encode account.checkUsername#2714d86c as nil")
	}
	b.PutID(AccountCheckUsernameRequestTypeID)
	return c.EncodeBare(b)
}

// EncodeBare implements bin.BareEncoder.
func (c *AccountCheckUsernameRequest) EncodeBare(b *bin.Buffer) error {
	if c == nil {
		return fmt.Errorf("can't encode account.checkUsername#2714d86c as nil")
	}
	b.PutString(c.Username)
	return nil
}

// Decode implements bin.Decoder.
func (c *AccountCheckUsernameRequest) Decode(b *bin.Buffer) error {
	if c == nil {
		return fmt.Errorf("can't decode account.checkUsername#2714d86c to nil")
	}
	if err := b.ConsumeID(AccountCheckUsernameRequestTypeID); err != nil {
		return fmt.Errorf("unable to decode account.checkUsername#2714d86c: %w", err)
	}
	return c.DecodeBare(b)
}

// DecodeBare implements bin.BareDecoder.
func (c *AccountCheckUsernameRequest) DecodeBare(b *bin.Buffer) error {
	if c == nil {
		return fmt.Errorf("can't decode account.checkUsername#2714d86c to nil")
	}
	{
		value, err := b.String()
		if err != nil {
			return fmt.Errorf("unable to decode account.checkUsername#2714d86c: field username: %w", err)
		}
		c.Username = value
	}
	return nil
}

// GetUsername returns value of Username field.
func (c *AccountCheckUsernameRequest) GetUsername() (value string) {
	if c == nil {
		return
	}
	return c.Username
}

// AccountCheckUsername invokes method account.checkUsername#2714d86c returning error if any.
// Validates a username and checks availability.
//
// Possible errors:
//
//	400 USERNAME_INVALID: The provided username is not valid.
//	400 USERNAME_OCCUPIED: The provided username is already occupied.
//	400 USERNAME_PURCHASE_AVAILABLE: The specified username can be purchased on https://fragment.com.
//
// See https://core.telegram.org/method/account.checkUsername for reference.
func (c *Client) AccountCheckUsername(ctx context.Context, username string) (bool, error) {
	var result BoolBox

	request := &AccountCheckUsernameRequest{
		Username: username,
	}
	if err := c.rpc.Invoke(ctx, request, &result); err != nil {
		return false, err
	}
	_, ok := result.Bool.(*BoolTrue)
	return ok, nil
}

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