// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "../EllipticCurve.sol";
import "../FastEcMul.sol";


/**
 * @title Test Helper for the EllipticCurve library
 * @author Witnet Foundation
 */
contract TestEllipticCurve {

  function invMod(uint256 _x, uint256 _pp) public pure returns (uint256) {
    return EllipticCurve.invMod(_x, _pp);
  }

  function expMod(uint256 _base, uint256 _exp, uint256 _pp) public pure returns (uint256) {
    return EllipticCurve.expMod(_base, _exp, _pp);
  }

  function toAffine(
    uint256 _x,
    uint256 _y,
    uint256 _z,
    uint256 _pp)
  public pure returns (uint256, uint256)
  {
    return EllipticCurve.toAffine(
      _x,
      _y,
      _z,
      _pp);
  }

  function deriveY(
    uint8 _prefix,
    uint256 _x,
    uint256 _aa,
    uint256 _bb,
    uint256 _pp)
  public pure returns (uint256)
  {
    return EllipticCurve.deriveY(
      _prefix,
      _x,
      _aa,
      _bb,
      _pp);
  }

  function isOnCurve(
    uint _x,
    uint _y,
    uint _aa,
    uint _bb,
    uint _pp)
  public pure returns (bool)
  {
    return EllipticCurve.isOnCurve(
      _x,
      _y,
      _aa,
      _bb,
      _pp);
  }

  function ecInv(
    uint256 _x,
    uint256 _y,
    uint256 _pp)
  public pure returns (uint256, uint256)
  {
    return EllipticCurve.ecInv(
      _x,
      _y,
      _pp);
  }

  function ecAdd(
    uint256 _x1,
    uint256 _y1,
    uint256 _x2,
    uint256 _y2,
    uint256 _aa,
    uint256 _pp)
  public pure returns(uint256, uint256)
  {
    return EllipticCurve.ecAdd(
      _x1,
      _y1,
      _x2,
      _y2,
      _aa,
      _pp);
  }

  function ecSub(
    uint256 _x1,
    uint256 _y1,
    uint256 _x2,
    uint256 _y2,
    uint256 _aa,
    uint256 _pp)
  public pure returns(uint256, uint256)
  {
    return EllipticCurve.ecSub(
      _x1,
      _y1,
      _x2,
      _y2,
      _aa,
      _pp);
  }

  function ecMul(
    uint256 _k,
    uint256 _x,
    uint256 _y,
    uint256 _aa,
    uint256 _pp)
  public pure returns(uint256, uint256)
  {
    return EllipticCurve.ecMul(
      _k,
      _x,
      _y,
      _aa,
      _pp);
  }

  function jacAdd(
    uint256 _x1,
    uint256 _y1,
    uint256 _z1,
    uint256 _x2,
    uint256 _y2,
    uint256 _z2,
    uint256 _pp)
  public pure returns (uint256, uint256, uint256)
  {
    return EllipticCurve.jacAdd(
      _x1,
      _y1,
      _z1,
      _x2,
      _y2,
      _z2,
      _pp);
  }

  function jacDouble(
    uint256 _x,
    uint256 _y,
    uint256 _z,
    uint256 _aa,
    uint256 _pp)
  public pure returns (uint256, uint256, uint256)
  {
    return EllipticCurve.jacDouble(
      _x,
      _y,
      _z,
      _aa,
      _pp);
  }

  function jacMul(
    uint256 _d,
    uint256 _x,
    uint256 _y,
    uint256 _z,
    uint256 _aa,
    uint256 _pp)
  public pure returns (uint256, uint256, uint256)
  {
    return EllipticCurve.jacMul(
      _d,
      _x,
      _y,
      _z,
      _aa,
      _pp);
  }

  function decomposeScalar(uint256 _k, uint256 _nn, uint256 _lambda) public pure returns (int256, int256) {
    return FastEcMul.decomposeScalar(_k, _nn, _lambda);
  }

  function ecSimMul(
    int256[4] memory _scalars,
    uint256[4] memory _points,
    uint256 _aa,
    uint256 _beta,
    uint256 _pp)
  public pure returns (uint256, uint256)
  {
    return FastEcMul.ecSimMul(
      _scalars,
      _points,
      _aa,
      _beta,
      _pp);
  }

}