// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;


contract DataStorageLayer   {
    
    
    mapping(bytes32=>uint) uintVariables;
    
    mapping(bytes32=>string) stringVariables;
    
    
    
    function setUintVariable(bytes32 _variable_name,uint  _variable_value ) public  {
        
        uintVariables[_variable_name] = _variable_value;
    }
    
    
    function getUintVariable(bytes32 _variable_name) public view returns(uint ret){
        return  uintVariables[_variable_name] ;
    }

    function setStringVariable(bytes32 _variable_name,string  calldata _variable_value ) public  {
        
        stringVariables[_variable_name] = _variable_value;
    }
    
    
    function getStringVariable(bytes32 _variable_name) public view  returns(string memory ret){
        return  stringVariables[_variable_name] ;
    }
        
}


library DataStorage_LIB {

    
    function setProof(address _abcStorage, string calldata _value, string calldata _idHash) public {
        
        DataStorageLayer(_abcStorage).setStringVariable(keccak256(bytes(_idHash)),_value);
    }
    
     function getProof(address _abcStorage, string calldata _idHash) public view returns(string memory ){
        
        return DataStorageLayer(_abcStorage).getStringVariable(keccak256(bytes(_idHash)));
    }
    
}