import type { Currency } from './currency-type.js';
import { NativeCurrency, nativeCurrencyToSerializableErc20TokenType } from './native-currency.js';
import { WXDAI } from './common-tokens.js';
import type { SerializableErc20TokenType } from './base-currency.js';

/**
 * xDAI is the native currency of the Gnosis Chain chain
 */
class xDAICurrency extends NativeCurrency {
  constructor() {
    super({
      chainId: 100,
      decimals: 18,
      symbol: 'xDAI',
      name: 'xDAI',
    });
  }

  get wrapped() {
    return WXDAI;
  }

  /**
   * Returns true if the two tokens are equivalent, i.e. have the same chainId and address.
   * @param other other token to compare
   */
  public equals(other: Currency): boolean {
    return other.isNative && this.chainId === other.chainId && this.address === other.address;
  }

  public toObject(): SerializableErc20TokenType {
    return nativeCurrencyToSerializableErc20TokenType(this);
  }
}

export const xDAI = new xDAICurrency();