77 lines
2.0 KiB
TypeScript
77 lines
2.0 KiB
TypeScript
import { Wei, toTokenBase } from 'libs/units';
|
|
import { addHexPrefix } from 'ethereumjs-util';
|
|
import BN from 'bn.js';
|
|
import { StaticNetworkIds } from 'types/network';
|
|
|
|
export function stripHexPrefix(value: string) {
|
|
return value.replace('0x', '');
|
|
}
|
|
|
|
export function stripHexPrefixAndLower(value: string): string {
|
|
return stripHexPrefix(value).toLowerCase();
|
|
}
|
|
|
|
export function toHexWei(weiString: string): string {
|
|
return addHexPrefix(Wei(weiString).toString(16));
|
|
}
|
|
|
|
export function padLeftEven(hex: string) {
|
|
return hex.length % 2 !== 0 ? `0${hex}` : hex;
|
|
}
|
|
|
|
export function sanitizeHex(hex: string) {
|
|
const hexStr = hex.substring(0, 2) === '0x' ? hex.substring(2) : hex;
|
|
return hex !== '' ? `0x${padLeftEven(hexStr)}` : '';
|
|
}
|
|
|
|
export function networkIdToName(networkId: string | number): StaticNetworkIds {
|
|
switch (networkId.toString()) {
|
|
case '1':
|
|
return 'ETH';
|
|
case '3':
|
|
return 'Ropsten';
|
|
case '4':
|
|
return 'Rinkeby';
|
|
case '42':
|
|
return 'Kovan';
|
|
default:
|
|
throw new Error(`Network ${networkId} is unsupported.`);
|
|
}
|
|
}
|
|
|
|
export const buildEIP681EtherRequest = (
|
|
recipientAddr: string,
|
|
chainId: number,
|
|
etherValue: { raw: string; value: Wei | '' }
|
|
) => `ethereum:${recipientAddr}${chainId !== 1 ? `@${chainId}` : ''}?value=${etherValue.raw}e18`;
|
|
|
|
export const buildEIP681TokenRequest = (
|
|
recipientAddr: string,
|
|
contractAddr: string,
|
|
chainId: number,
|
|
tokenValue: { raw: string; value: Wei | '' },
|
|
decimal: number,
|
|
gasLimit: { raw: string; value: BN | null }
|
|
) =>
|
|
`ethereum:${contractAddr}${
|
|
chainId !== 1 ? `@${chainId}` : ''
|
|
}/transfer?address=${recipientAddr}&uint256=${toTokenBase(tokenValue.raw, decimal)}&gas=${
|
|
gasLimit.raw
|
|
}`;
|
|
|
|
export const sanitizeNumericalInput = (input: string): string => {
|
|
const inputFloat = parseFloat(input);
|
|
|
|
if (!input || isNaN(inputFloat)) {
|
|
return input;
|
|
}
|
|
|
|
// limit input field decrement to 0
|
|
if (inputFloat === -1) {
|
|
return '0';
|
|
}
|
|
|
|
// convert negative values to positive
|
|
return Math.abs(inputFloat).toString();
|
|
};
|