import { Action } from '../../Action';
import { requireAddress } from '../../utils/general';
import { getAddr } from '../../addresses';
import { EthAddress, uint256 } from '../../types';

/**
 * LiquityWithdrawAction - Withdraws collateral from the trove
 *
 * @category Liquity
 */
export class LiquityWithdrawAction extends Action {
  /**
   * @param collAmount Amount of WETH tokens to withdraw
   * @param to Address that will receive the withdrawn tokens
   * @param upperHint Address in the linked list to use as an upper limit
   * @param lowerHint Address in the linked list to use as a lower limit
   */
  constructor(collAmount:uint256, to:EthAddress, upperHint:EthAddress, lowerHint:EthAddress) {
    requireAddress(to);
    super('LiquityWithdraw',
      getAddr('LiquityWithdraw'),
      ['uint256', 'address', 'address', 'address'],
      [collAmount, to, upperHint, lowerHint]);

    this.mappableArgs = [
      this.args[0],
      this.args[1],
    ];
  }
}