/
dbvn.sol
325 lines (178 loc) · 7.81 KB
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dbvn.sol
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pragma solidity 0.4.25;
contract dbvn {
struct Users {
uint8 role;
uint weight;
}
uint total_weight = 0;
mapping(address => Users) public users;
address[] public users_array;
struct Votes {
uint choice;
}
struct Assets {
uint8 status;
string name;
uint funds;
address request_target;
uint request_asset;
uint request_amount;
uint vote_id;
uint vote_yes;
uint vote_no;
mapping(address => uint) votes;
}
uint assets_key = 0;
mapping(uint => Assets) public assets;
constructor (uint _weight) public {
users[msg.sender].role = 1;
users[msg.sender].weight = _weight;
users_array.push(msg.sender);
total_weight += _weight;
}
function add_user(address _new_user, uint8 _role, uint _weight) public{
/* Only owner can add new users */
require(
(
users[msg.sender].role == 1 && _role < 4
)
);
require( users[_new_user].role != 1 && users[_new_user].role != 2 && users[_new_user].role != 3);
users[_new_user] = Users({ role: _role, weight : _weight });
total_weight += _weight;
users_array.push(_new_user);
}
function remove_user(address _user) public{
require(
(
users[msg.sender].role == 1
)
);
total_weight -= users[_user].weight;
users[_user].role = 0;
users[_user].weight = 0;
}
function change_user(address _user, uint8 _role, uint _weight ) public{
require(
(
users[msg.sender].role == 1 && _role < 4
)
);
require(users[_user].role == 1 || users[_user].role == 2 || users[_user].role == 3);
if(users[_user].weight != _weight){
total_weight -= users[_user].weight;
total_weight += _weight;
users[_user].weight = _weight;
}
if(users[_user].role != _role){
users[_user].role = _role;
}
}
function create_asset(
uint8 _status,
string _name,
address _request_target,
uint _request_asset,
uint _request_amount
) public payable{
require(
(
users[msg.sender].role == 1 || users[msg.sender].role == 2
)
);
require( _status == 1 || _status == 2 );
assets[assets_key].status = _status;
assets[assets_key].name = _name;
assets[assets_key].funds = msg.value;
assets[assets_key].request_target = _request_target;
assets[assets_key].request_asset = _request_asset;
assets[assets_key].request_amount = _request_amount;
assets[assets_key].vote_id = 0;
assets[assets_key].vote_yes = 0;
assets[assets_key].vote_no = 0;
assets_key++;
}
function change_asset( uint _asset_key, uint8 _status, string _name ) public{
require(
(
users[msg.sender].role == 1 || users[msg.sender].role == 2
)
);
require ( assets[_asset_key].status == 1 || assets[_asset_key].status == 2 );
if( assets[_asset_key].status != _status ){
assets[_asset_key].status = _status;
}
assets[_asset_key].name = _name;
}
function request_funds(uint _asset_key, uint _request_amount, address _request_target, uint _request_asset ) public payable{
require ( assets[_asset_key].status == 1 );
require ( assets[_asset_key].funds <= _request_amount );
require(
(
users[msg.sender].role == 1 || users[msg.sender].role == 2
)
);
assets[_asset_key].status = 3;
assets[_asset_key].request_target = _request_target;
assets[_asset_key].request_asset = _request_asset;
assets[_asset_key].request_amount = _request_amount;
assets[assets_key].vote_id = 0;
assets[assets_key].vote_yes = 0;
assets[assets_key].vote_no = 0;
/* Loop through the voting mapping */
uint users_length = users_array.length;
for (uint i=0; i< users_length; i++) {
assets[assets_key].votes[users_array[i]] = 0;
}
}
function send_fund(uint _asset_key) public payable{
require ( assets[_asset_key].status == 1 );
assets[_asset_key].funds += msg.value;
}
function cast_vote(uint _asset_key, uint8 _vote) payable{
require ( assets[_asset_key].status == 3 );
require ( _vote == 1 || _vote == 2 );
require(
(
users[msg.sender].role == 1 || users[msg.sender].role == 2 || users[msg.sender].role == 3
)
);
require ( assets[_asset_key].votes[msg.sender] != 1 );
if( _vote == 1){
assets[_asset_key].vote_yes += users[msg.sender].weight;
}else if(_vote == 2){
assets[_asset_key].vote_yes += users[msg.sender].weight;
}
assets[_asset_key].votes[msg.sender] = 1;
uint flag = 0;
if(assets[_asset_key].vote_yes >= ( total_weight / 2 ) ){
// release funds
if(assets[_asset_key].request_target != 0){
// transfer fund to another address
assets[_asset_key].request_target.send(assets[_asset_key].request_amount);
assets[_asset_key].funds -= assets[_asset_key].request_amount;
}else{
if(assets[_asset_key].request_asset != 0){
// transfer fund to a different asset
assets[assets[_asset_key].request_asset].funds += assets[_asset_key].request_amount;
assets[_asset_key].funds -= assets[_asset_key].request_amount;
}
}
flag = 1;
}else if(assets[_asset_key].vote_no >= ( total_weight / 2 ) ){
// cancel vote
flag = 1;
}
if(flag == 1){
// clear the vote
uint users_length = users_array.length;
for (uint i=0; i< users_length; i++) {
assets[assets_key].votes[users_array[i]] = 0;
}
assets[assets_key].status = 1;
assets[assets_key].request_amount = 0;
assets[assets_key].request_target = 0;
assets[assets_key].request_asset = 0;
}
}
}