ex15.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "../exerciceTemplate.sol";
import "./Iex14Solution.sol";

/*
Exercice 14: Completing all the workshop in a single transaction!
In this exercice you should:
- Implement a contract that complies with interface Iex14Solution
- Call the appropriate function here to trigger collecting points
*/


contract ex15 is exerciceTemplate {


  constructor(ERC20TD _TDERC20) 
  exerciceTemplate(_TDERC20)
  {
  }

  function askForPoints() 
  public  
  {
    // Checking that solution has no token yet
    uint256 initialBalance = TDERC20.balanceOf(msg.sender);
    require(initialBalance == 0, "Solution should start with 0 points");

    // Calling the solution so that it solves the workshop
    Iex14Solution callerSolution = Iex14Solution(msg.sender);
    callerSolution.completeWorkshop();

    // Checking that at least 10 exercices where validated
    uint256 finalBalance = TDERC20.balanceOf(msg.sender);
    uint256 decimals = TDERC20.decimals();
    require(finalBalance >= 10**decimals *26, "Solution should end with at least than 26 points");

    // Validating exercice
    creditStudent(2, msg.sender);
    validateExercice(msg.sender);

  }


}