Crypto-ERC20-DevToken-RewardCalculations-V2.0

      /**
      * @notice 
      * calculateTotalAvailableRewards will iterate all stakes made by a account
      * and summerize the total unclaimed rewards
      * 
       */
       function calculateTotalAvailableRewards(address _staker) public view returns(uint256){
           uint256 total_reward;
            // Itterate all stakes from the address and calculate their reward for each stake
           Stake[] memory user_stakes = stakes[stakeHolders[_staker]];

           for(uint256 i = 0; i<user_stakes.length; i++) {
               // Skip any stake that is actually stopped or empty
               if(user_stakes[i].amount == 0 || user_stakes[i].until != 0){
                   continue;
               }

               total_reward = total_reward + calculateStakeReward(user_stakes[i]);
           }

           return total_reward;
       }