ussd/common/db.go

131 lines
3.7 KiB
Go

package common
import (
"encoding/binary"
"errors"
"git.defalsify.org/vise.git/logging"
)
// DataType is a subprefix value used in association with vise/db.DATATYPE_USERDATA.
//
// All keys are used only within the context of a single account. Unless otherwise specified, the user context is the session id.
//
// * The first byte is vise/db.DATATYPE_USERDATA
// * The last 2 bytes are the DataTyp value, big-endian.
// * The intermediate bytes are the id of the user context.
//
// All values are strings
type DataTyp uint16
const (
// API Tracking id to follow status of account creation
DATA_TRACKING_ID = iota
// EVM address returned from API on account creation
DATA_PUBLIC_KEY
// Currently active PIN used to authenticate ussd state change requests
DATA_ACCOUNT_PIN
// The first name of the user
DATA_FIRST_NAME
// The last name of the user
DATA_FAMILY_NAME
// The year-of-birth of the user
DATA_YOB
// The location of the user
DATA_LOCATION
// The gender of the user
DATA_GENDER
// The offerings description of the user
DATA_OFFERINGS
// The ethereum address of the recipient of an ongoing send request
DATA_RECIPIENT
// The voucher value amount of an ongoing send request
DATA_AMOUNT
// A general swap field for temporary values
DATA_TEMPORARY_VALUE
// Currently active voucher symbol of user
DATA_ACTIVE_SYM
// Voucher balance of user's currently active voucher
DATA_ACTIVE_BAL
// String boolean indicating whether use of PIN is blocked
DATA_BLOCKED_NUMBER
// Reverse mapping of a user's evm address to a session id.
DATA_PUBLIC_KEY_REVERSE
// Decimal count of the currently active voucher
DATA_ACTIVE_DECIMAL
// EVM address of the currently active voucher
DATA_ACTIVE_ADDRESS
)
const (
// List of valid voucher symbols in the user context.
DATA_VOUCHER_SYMBOLS DataTyp = 256 + iota
// List of voucher balances for vouchers valid in the user context.
DATA_VOUCHER_BALANCES
// List of voucher decimal counts for vouchers valid in the user context.
DATA_VOUCHER_DECIMALS
// List of voucher EVM addresses for vouchers valid in the user context.
DATA_VOUCHER_ADDRESSES
// List of senders for valid transactions in the user context.
)
const (
DATA_TX_SENDERS = 512 + iota
// List of recipients for valid transactions in the user context.
DATA_TX_RECIPIENTS
// List of voucher values for valid transactions in the user context.
DATA_TX_VALUES
// List of voucher EVM addresses for valid transactions in the user context.
DATA_TX_ADDRESSES
// List of valid transaction hashes in the user context.
DATA_TX_HASHES
// List of transaction dates for valid transactions in the user context.
DATA_TX_DATES
// List of voucher symbols for valid transactions in the user context.
DATA_TX_SYMBOLS
// List of voucher decimal counts for valid transactions in the user context.
DATA_TX_DECIMALS
)
var (
logg = logging.NewVanilla().WithDomain("urdt-common")
)
func typToBytes(typ DataTyp) []byte {
var b [2]byte
binary.BigEndian.PutUint16(b[:], uint16(typ))
return b[:]
}
func PackKey(typ DataTyp, data []byte) []byte {
v := typToBytes(typ)
return append(v, data...)
}
func StringToDataTyp(str string) (DataTyp, error) {
switch str {
case "DATA_FIRST_NAME":
return DATA_FIRST_NAME, nil
case "DATA_FAMILY_NAME":
return DATA_FAMILY_NAME, nil
case "DATA_YOB":
return DATA_YOB, nil
case "DATA_LOCATION":
return DATA_LOCATION, nil
case "DATA_GENDER":
return DATA_GENDER, nil
case "DATA_OFFERINGS":
return DATA_OFFERINGS, nil
default:
return 0, errors.New("invalid DataTyp string")
}
}
// ToBytes converts DataTyp or int to a byte slice
func ToBytes[T ~uint16 | int](value T) []byte {
bytes := make([]byte, 2)
binary.BigEndian.PutUint16(bytes, uint16(value))
return bytes
}