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

/**
 * LiquityStakeAction - Stakes LQTY tokens
 *
 * @category Liquity
 */
export class LiquityStakeAction extends Action {
  /**
     * @param lqtyAmount Amount of LQTY tokens that will be staked
     * @param from Address where the tokens are being pulled from
     * @param wethTo Address that will receive ETH gains
     * @param lusdTo Address that will receive LUSD gains
     */
  constructor(lqtyAmount:uint256, from:EthAddress, wethTo:EthAddress, lusdTo:EthAddress) {
    requireAddress(from);
    requireAddress(wethTo);
    requireAddress(lusdTo);
    super('LiquityStake',
      getAddr('LiquityStake'),
      ['uint256', 'address', 'address', 'address'],
      [lqtyAmount, from, wethTo, lusdTo]);

    this.mappableArgs = [
      this.args[0],
      this.args[1],
      this.args[2],
      this.args[3],
    ];
  }

  async getAssetsToApprove() {
    return [{ asset: getAssetInfo('LQTY').address, owner: this.args[1] }];
  }
}