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

/**
 * CBRedeemAction - Redeems bLUSD for Lusd (might also get yTokens)
 *
 * @category ChickenBonds
 */
export class CBRedeemAction extends Action {
  /**
   * @param bLUSDAmount Amount of bLUSD
   * @param minLUSDFromSP Min amount of lusd to receive
   * @param from
   * @param to
   */
  constructor(bLUSDAmount:uint256, minLUSDFromSP:uint256, from:EthAddress, to:EthAddress) {
    requireAddress(from);
    requireAddress(to);
    super('CBRedeem', getAddr('CBRedeem'), ['uint256', 'uint256', 'address', 'address'], [bLUSDAmount, minLUSDFromSP, from, to]);
  }

  async getAssetsToApprove() {
    return [{ asset: getAddr('BLUSD'), owner: this.args[2] }];
  }
}