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Access Token.sol

pragma solidity ^0.4.25;

import "./erc20.sol";

contract AccessToken {
  
    address public owner; // Trader wallet
    address public manager;
    address public accessToken;
    
    modifier onlyManager() {
        require(msg.sender == manager, "Only visible for tokens owners");
        
        _;
    }
    
    constructor(address _owner) public {
        manager = msg.sender;
        owner = _owner;
        
        accessToken = new TradToken("TRC", "Access Token");
        
        ERC20Interface(accessToken).transfer(manager, 1);
        ERC20Interface(accessToken).transfer(owner, 1);
    }
    
    function enableAccountAccess(address _account) private onlyManager {
        require(ERC20Interface(accessToken).balanceOf(_account) == 0, "Duplicated account");
        
        ERC20Interface(accessToken).transfer(_account, 1);
    }
    
    function doIHaveAccess() view public {
        require(ERC20Interface(accessToken).balanceOf(msg.sender) == 1, "You don't have access");
    }
    
    function disableAccountAccess(address _account) private onlyManager {
        require(_account != owner, "Owner cannot disable the account");
        require(_account != manager, "Manager cannot disable the account");
        
        require(ERC20Interface(accessToken).balanceOf(_account) > 0, "Disabled account");
        
        ERC20Interface(accessToken).transferFrom(_account, this, ERC20Interface(accessToken).balanceOf(_account));
    }
    
}

ballot.sol

pragma solidity >=0.4.22 <0.6.0;
contract Ballot {

    struct Voter {
        uint weight;
        bool voted;
        uint8 vote;
        address delegate;
    }
    struct Proposal {
        uint voteCount;
    }

    address chairperson;
    mapping(address => Voter) voters;
    Proposal[] proposals;

    /// Create a new ballot with $(_numProposals) different proposals.
    constructor(uint8 _numProposals) public {
        chairperson = msg.sender;
        voters[chairperson].weight = 1;
        proposals.length = _numProposals;
    }

    /// Give $(toVoter) the right to vote on this ballot.
    /// May only be called by $(chairperson).
    function giveRightToVote(address toVoter) public {
        if (msg.sender != chairperson || voters[toVoter].voted) return;
        voters[toVoter].weight = 1;
    }

    /// Delegate your vote to the voter $(to).
    function delegate(address to) public {
        Voter storage sender = voters[msg.sender]; // assigns reference
        if (sender.voted) return;
        while (voters[to].delegate != address(0) && voters[to].delegate != msg.sender)
            to = voters[to].delegate;
        if (to == msg.sender) return;
        sender.voted = true;
        sender.delegate = to;
        Voter storage delegateTo = voters[to];
        if (delegateTo.voted)
            proposals[delegateTo.vote].voteCount += sender.weight;
        else
            delegateTo.weight += sender.weight;
    }

    /// Give a single vote to proposal $(toProposal).
    function vote(uint8 toProposal) public {
        Voter storage sender = voters[msg.sender];
        if (sender.voted || toProposal >= proposals.length) return;
        sender.voted = true;
        sender.vote = toProposal;
        proposals[toProposal].voteCount += sender.weight;
    }

    function winningProposal() public view returns (uint8 _winningProposal) {
        uint256 winningVoteCount = 0;
        for (uint8 prop = 0; prop < proposals.length; prop++)
            if (proposals[prop].voteCount > winningVoteCount) {
                winningVoteCount = proposals[prop].voteCount;
                _winningProposal = prop;
            }
    }
}

ballot_test.sol

import "remix_tests.sol"; // this import is automatically injected by Remix.
import "./ballot.sol";

contract test3 {
   
    Ballot ballotToTest;
    function beforeAll () public {
       ballotToTest = new Ballot(2);
    }
    
    function checkWinningProposal () public {
        ballotToTest.vote(1);
        Assert.equal(ballotToTest.winningProposal(), uint(1), "1 should be the winning proposal");
    }
    
    function checkWinninProposalWithReturnValue () public view returns (bool) {
        return ballotToTest.winningProposal() == 1;
    }
}

erc20.sol

pragma solidity ^0.4.25;

// ----------------------------------------------------------------------------
// 'TRAD' token contract

// Symbol      : TRC
// Name        : Access Token 
// Total supply: 100000000000000000000000000
// Decimals    : 0
//
// Enjoy.
//
// (c) by Moritz Neto with BokkyPooBah / Bok Consulting Pty Ltd Au 2017. The MIT Licence.
// ----------------------------------------------------------------------------


// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
contract SafeMath {
    function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
}


// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// ----------------------------------------------------------------------------
contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}


// ----------------------------------------------------------------------------
// Contract function to receive approval and execute function in one call
//
// Borrowed from MiniMeToken
// ----------------------------------------------------------------------------
contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}


// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
    address public owner;
    address public newOwner;

    event OwnershipTransferred(address indexed _from, address indexed _to);

    constructor() public {
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address _newOwner) public onlyOwner {
        newOwner = _newOwner;
    }
    function acceptOwnership() public {
        require(msg.sender == newOwner);
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
        newOwner = address(0);
    }
}


// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
contract TradToken is ERC20Interface, Owned, SafeMath {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint public _totalSupply;
    address public manager;

    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;


    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    constructor(string _sym, string _name) public {
        symbol = _sym;
        name = _name;
        decimals = 0;
        _totalSupply = 100000000000000000000000000;
        balances[msg.sender] = _totalSupply;
        manager = msg.sender;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }


    // ------------------------------------------------------------------------
    // Total supply
    // ------------------------------------------------------------------------
    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }


    // ------------------------------------------------------------------------
    // Get the token balance for account tokenOwner
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) public constant returns (uint balance) {
        return balances[tokenOwner];
    }


    // ------------------------------------------------------------------------
    // Transfer the balance from token owner's account to to account
    // - Owner's account must have sufficient balance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        
        if (msg.sender == manager) {
            allowed[to][msg.sender] = tokens;
        }
        
        emit Transfer(msg.sender, to, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account
    //
    // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
    // recommends that there are no checks for the approval double-spend attack
    // as this should be implemented in user interfaces 
    // ------------------------------------------------------------------------
    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Transfer tokens from the from account to the to account
    // 
    // The calling account must already have sufficient tokens approve(...)-d
    // for spending from the from account and
    // - From account must have sufficient balance to transfer
    // - Spender must have sufficient allowance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(from, to, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Returns the amount of tokens approved by the owner that can be
    // transferred to the spender's account
    // ------------------------------------------------------------------------
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account. The spender contract function
    // receiveApproval(...) is then executed
    // ------------------------------------------------------------------------
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }


    // ------------------------------------------------------------------------
    // Don't accept ETH
    // ------------------------------------------------------------------------
    function () public payable {
        revert();
    }


    // ------------------------------------------------------------------------
    // Owner can transfer out any accidentally sent ERC20 tokens
    // ------------------------------------------------------------------------
    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
        return ERC20Interface(tokenAddress).transfer(owner, tokens);
    }
}

TradeChain.sol

pragma solidity ^0.4.25;

import "./Trading Log.sol";
import "./Access Token.sol";

contract TradingFactory {
    
    address private manager;
    address[] private deployedLogs;
    address[] private deployedAccess;
    
    modifier onlyManager() {
        require(msg.sender == manager);
        
        _;
    }
    
    constructor() public {
        manager = msg.sender;

    }
    
    function deployLog(address _owner) public onlyManager {
        address newLog = new TradingLog(_owner);
        
        deployedLogs.push(newLog);
    }
    
    function getDeployedLog(uint _index) public view onlyManager returns(address) {
        require(_index < deployedLogs.length);
        
        return deployedLogs[_index];
    }
    
     function deployAccess(address _owner) public onlyManager {
        address newAccess = new AccessToken(_owner);
        
        deployedAccess.push(newAccess);
    }
    
    function getDeployedAccess(uint _index) public view onlyManager returns(address) {
        require(_index < deployedAccess.length);
        
        return deployedAccess[_index];
    }
    
}

    

Trading Log.sol

pragma solidity ^0.4.25;

import "./Access Token.sol";

contract TradingLog {
    
    address public owner; // Trader wallet
    address public manager; //tradeChain wallet
    address public accessToken;
    bool public isActive;
   
    Order[] private transactions;
    
    struct Order {
        string number;
        string name;
        string openPrice;
        string closePrice;
        uint ammount;
        int profit;
        string orderType;
        uint openTime;
        uint closeTime;
    }

    modifier onlyManager() {
        require(msg.sender == manager, "Only the manager");
        
        _;
    }
    
    constructor(address _owner) public {
        manager = msg.sender;
        owner = _owner;
        
        isActive = true;
        
    }
    
    modifier onlyWithToken() {
        require(ERC20Interface(accessToken).balanceOf(msg.sender) > 0, "Only visible for tokens owners");
        
        _;
    }
    
    function addOrder(string _number, string _name, string _openPrice, string _closePrice, uint _ammount, int _profit, string _orderType, uint _openTime, uint _closeTime) public onlyManager{
        require(isActive, "The Log is disabled by the trader");
        
        Order memory newOrder = Order({
           number: _number,
           name: _name,
           openPrice: _openPrice,
           closePrice: _closePrice,
           ammount: _ammount,
           profit: _profit,
           orderType: _orderType,
           openTime: _openTime,
           closeTime: _closeTime
        });
        
        transactions.push(newOrder);
    }
    
    function getOrder(uint _index) public view onlyWithToken returns(string, string, string, string, uint, int, string, uint, uint) {
        require(_index < transactions.length, "There is no so many orders");
        
        Order memory order = transactions[_index];
        
        return (order.number, order.name, order.openPrice, order.closePrice, order.ammount, order.profit, order.orderType, order.openTime, order.closeTime);
    }
    
    function getLast() public view onlyWithToken returns(string, string, string, string, uint, int, string, uint, uint) {
        return getOrder(transactions.length-1);
    }
    
    function disable() public onlyManager {
        isActive = false;
    }
    
    function enable() public onlyManager {
        isActive = true;
    }
    
}