pragma solidity ^0.7.0;

import { MemoryInterface } from "./interfaces.sol";


abstract contract Stores {

  /**
   * @dev Return ethereum address
   */
  function getEthAddr() internal pure returns (address) {
    return 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; // ETH Address
  }

  /**
   * @dev Return memory variable address
   */
  function getMemoryAddr() internal pure returns (address) {
    return 0x8a5419CfC711B2343c17a6ABf4B2bAFaBb06957F; // InstaMemory Address
  }

  /**
   * @dev Return InstaDApp Mapping Addresses
   */
  function getMappingAddr() internal pure returns (address) {
    return 0xe81F70Cc7C0D46e12d70efc60607F16bbD617E88; // InstaMapping Address
  }

  /**
   * @dev Get Uint value from InstaMemory Contract.
   */
  function getUint(uint getId, uint val) internal returns (uint returnVal) {
    returnVal = getId == 0 ? val : MemoryInterface(getMemoryAddr()).getUint(getId);
  }

  /**
  * @dev Set Uint value in InstaMemory Contract.
  */
  function setUint(uint setId, uint val) virtual internal {
    if (setId != 0) MemoryInterface(getMemoryAddr()).setUint(setId, val);
  }

}