pragma solidity 0.4.19;

/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control 
 * functions, this simplifies the implementation of "user permissions". 
 */
contract Ownable {
  address public owner;

  /** 
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  function Ownable() {
    owner = msg.sender;
  }

  /**
   * @dev Throws if called by any account other than the owner. 
   */
  modifier onlyOwner() {
    require(msg.sender == owner);
    _;
  }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to. 
   */
  function transferOwnership(address newOwner) onlyOwner public {
    if (newOwner != address(0)) {
      owner = newOwner;
    }
  }

}


/**
 * @title Authorizable
 * @dev Allows to authorize access to certain function calls
 * 
 * ABI
 * [{"constant": true,"inputs": [{"name": "authorizerIndex","type": "uint256"}],"name": "getAuthorizer","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_addr","type": "address"}],"name": "addAuthorized","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [{"name": "_addr","type": "address"}],"name": "isAuthorized","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "view","type": "function"},{"inputs": [],"payable": false,"stateMutability": "nonpayable","type": "constructor"}]
 */
contract Authorizable {

  address[] authorizers;
  mapping(address => uint) authorizerIndex;

  /**
   * @dev Throws if called by any account tat is not authorized. 
   */
  modifier onlyAuthorized {
    require(isAuthorized(msg.sender));
    _;
  }

  /**
   * @dev Contructor that authorizes the msg.sender. 
   */
  function Authorizable() {
    authorizers.length = 2;
    authorizers[1] = msg.sender;
    authorizerIndex[msg.sender] = 1;
  }

  /**
   * @dev Function to get a specific authorizer
   * @param authorizerIndex index of the authorizer to be retrieved.
   * @return The address of the authorizer.
   */
  function getAuthorizer(uint authorizerIndex) external constant returns(address) {
    return address(authorizers[authorizerIndex + 1]);
  }

  /**
   * @dev Function to check if an address is authorized
   * @param _addr the address to check if it is authorized.
   * @return boolean flag if address is authorized.
   */
  function isAuthorized(address _addr) constant returns(bool) {
    return authorizerIndex[_addr] > 0;
  }

  /**
   * @dev Function to add a new authorizer
   * @param _addr the address to add as a new authorizer.
   */
  function addAuthorized(address _addr) external onlyAuthorized {
    authorizerIndex[_addr] = authorizers.length;
    authorizers.length++;
    authorizers[authorizers.length - 1] = _addr;
  }

}


/**
 * Math operations with safety checks
 */
library SafeMath {
  function mul(uint a, uint b) internal returns (uint) {
    uint c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

  function div(uint a, uint b) internal returns (uint) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    uint c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return c;
  }

  function sub(uint a, uint b) internal returns (uint) {
    assert(b <= a);
    return a - b;
  }

  function add(uint a, uint b) internal returns (uint) {
    uint c = a + b;
    assert(c >= a);
    return c;
  }

  function max64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a >= b ? a : b;
  }

  function min64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a < b ? a : b;
  }

  function max256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a >= b ? a : b;
  }

  function min256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a < b ? a : b;
  }

}


/**
 * @title ExchangeRate
 * @dev Allows updating and retrieveing of Conversion Rates for ABLE tokens
 *
 * ABI
 * [{"constant": false,"inputs": [{"name": "_symbol","type": "string"},{"name": "_rate","type": "uint256"}],"name": "updateRate","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [{"name": "data","type": "uint256[]"}],"name": "updateRates","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [{"name": "_symbol","type": "string"}],"name": "getRate","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "owner","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [{"name": "","type": "bytes32"}],"name": "rates","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "newOwner","type": "address"}],"name": "transferOwnership","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"anonymous": false,"inputs": [{"indexed": false,"name": "timestamp","type": "uint256"},{"indexed": false,"name": "symbol","type": "bytes32"},{"indexed": false,"name": "rate","type": "uint256"}],"name": "RateUpdated","type": "event"}]
 */
contract ExchangeRate is Ownable {

  event RateUpdated(uint timestamp, bytes32 symbol, uint rate);

  mapping(bytes32 => uint) public rates;

  /**
   * @dev Allows the current owner to update a single rate.
   * @param _symbol The symbol to be updated. 
   * @param _rate the rate for the symbol. 
   */
  function updateRate(string _symbol, uint _rate) public onlyOwner {
    rates[sha3(_symbol)] = _rate;
    RateUpdated(now, sha3(_symbol), _rate);
  }

  /**
   * @dev Allows the current owner to update multiple rates.
   * @param data an array that alternates sha3 hashes of the symbol and the corresponding rate . 
   */
  function updateRates(uint[] data) public onlyOwner {
    require(data.length % 2 == 0);
    uint i = 0;
    while (i < data.length / 2) {
      bytes32 symbol = bytes32(data[i * 2]);
      uint rate = data[i * 2 + 1];
      rates[symbol] = rate;
      RateUpdated(now, symbol, rate);
      i++;
    }
  }

  /**
   * @dev Allows the anyone to read the current rate.
   * @param _symbol the symbol to be retrieved. 
   */
  function getRate(string _symbol) public constant returns(uint) {
    return rates[sha3(_symbol)];
  }

}


/**
 * @title HardCap
 * @dev Allows updating and retrieveing of Conversion HardCap for ABLE tokens
 *
 * ABI
 * [{"constant": true,"inputs": [{"name": "_symbol","type": "string"}],"name": "getCap","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "owner","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_symbol","type": "string"},{"name": "_cap","type": "uint256"}],"name": "updateCap","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [{"name": "data","type": "uint256[]"}],"name": "updateCaps","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "getHardCap","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [{"name": "","type": "bytes32"}],"name": "caps","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "newOwner","type": "address"}],"name": "transferOwnership","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"anonymous": false,"inputs": [{"indexed": false,"name": "timestamp","type": "uint256"},{"indexed": false,"name": "symbol","type": "bytes32"},{"indexed": false,"name": "rate","type": "uint256"}],"name": "CapUpdated","type": "event"}]
 */
contract HardCap is Ownable {
  using SafeMath for uint;
  event CapUpdated(uint timestamp, bytes32 symbol, uint rate);
  
  mapping(bytes32 => uint) public caps;
  uint hardcap = 0;

  /**
   * @dev Allows the current owner to update a single cap.
   * @param _symbol The symbol to be updated. 
   * @param _cap the cap for the symbol. 
   */
  function updateCap(string _symbol, uint _cap) public onlyOwner {
    caps[sha3(_symbol)] = _cap;
    hardcap = hardcap.add(_cap) ;
    CapUpdated(now, sha3(_symbol), _cap);
  }

  /**
   * @dev Allows the current owner to update multiple caps.
   * @param data an array that alternates sha3 hashes of the symbol and the corresponding cap . 
   */
  function updateCaps(uint[] data) public onlyOwner {
    require(data.length % 2 == 0);
    uint i = 0;
    while (i < data.length / 2) {
      bytes32 symbol = bytes32(data[i * 2]);
      uint cap = data[i * 2 + 1];
      caps[symbol] = cap;
      hardcap = hardcap.add(cap);
      CapUpdated(now, symbol, cap);
      i++;
    }
  }

  /**
   * @dev Allows the anyone to read the current cap.
   * @param _symbol the symbol to be retrieved. 
   */
  function getCap(string _symbol) public constant returns(uint) {
    return caps[sha3(_symbol)];
  }
  
  /**
   * @dev Allows the anyone to read the current hardcap.
   */
  function getHardCap() public constant returns(uint) {
    return hardcap;
  }

}


/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) constant returns (uint);
  function transfer(address to, uint value);
  event Transfer(address indexed from, address indexed to, uint value);
}


/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) constant returns (uint);
  function transferFrom(address from, address to, uint value);
  function approve(address spender, uint value);
  event Approval(address indexed owner, address indexed spender, uint value);
}


/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances. 
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint;

  mapping(address => uint) balances;

  /**
   * @dev Fix for the ERC20 short address attack.
   */
  modifier onlyPayloadSize(uint size) {
     require(msg.data.length >= size + 4);
     _;
  }

  /**
  * @dev transfer token for a specified address
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  */
  function transfer(address _to, uint _value) onlyPayloadSize(2 * 32) {
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
  }

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of. 
  * @return An uint representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }

}


/**
 * @title Standard ERC20 token
 *
 * @dev Implemantation of the basic standart token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is BasicToken, ERC20 {

  mapping (address => mapping (address => uint)) allowed;


  /**
   * @dev Transfer tokens from one address to another
   * @param _from address The address which you want to send tokens from
   * @param _to address The address which you want to transfer to
   * @param _value uint the amout of tokens to be transfered
   */
  function transferFrom(address _from, address _to, uint _value) onlyPayloadSize(3 * 32) {
    var _allowance = allowed[_from][msg.sender];

    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // if (_value > _allowance) throw;

    balances[_to] = balances[_to].add(_value);
    balances[_from] = balances[_from].sub(_value);
    allowed[_from][msg.sender] = _allowance.sub(_value);
    Transfer(_from, _to, _value);
  }

  /**
   * @dev Aprove the passed address to spend the specified amount of tokens on beahlf of msg.sender.
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint _value) {

    //  To change the approve amount you first have to reduce the addresses`
    //  allowance to zero by calling `approve(_spender, 0)` if it is not
    //  already 0 to mitigate the race condition described here:
    //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    require(_value == 0);
    require(allowed[msg.sender][_spender] == 0);

    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
  }

  /**
   * @dev Function to check the amount of tokens than an owner allowed to a spender.
   * @param _owner address The address which owns the funds.
   * @param _spender address The address which will spend the funds.
   * @return A uint specifing the amount of tokens still avaible for the spender.
   */
  function allowance(address _owner, address _spender) constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }

}


/**
 * @title Mintable token
 * @dev Simple ERC20 Token example, with mintable token creation
 * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120
 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
 */

contract MintableToken is StandardToken, Ownable {
  event Mint(address indexed to, uint value);
  event MintFinished();

  bool public mintingFinished = false;
  uint public totalSupply = 0;


  modifier canMint() {
    require(!mintingFinished);
    _;
  }

  /**
   * @dev Function to mint tokens
   * @param _to The address that will recieve the minted tokens.
   * @param _amount The amount of tokens to mint.
   * @return A boolean that indicates if the operation was successful.
   */
  function mint(address _to, uint _amount) onlyOwner canMint returns (bool) {
    totalSupply = totalSupply.add(_amount);
    balances[_to] = balances[_to].add(_amount);
    Mint(_to, _amount);
    return true;
  }

  /**
   * @dev Function to stop minting new tokens.
   * @return True if the operation was successful.
   */
  function finishMinting() onlyOwner returns (bool) {
    mintingFinished = true;
    MintFinished();
    return true;
  }

}


/**
 * @title AbleTokoen
 * @dev The main ABLE token contract
 * 
 * ABI 
 * [{"constant": true,"inputs": [],"name": "mintingFinished","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "name","outputs": [{"name": "","type": "string"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_spender","type": "address"},{"name": "_value","type": "uint256"}],"name": "approve","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "totalSupply","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_from","type": "address"},{"name": "_to","type": "address"},{"name": "_value","type": "uint256"}],"name": "transferFrom","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [],"name": "startTrading","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "decimals","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_to","type": "address"},{"name": "_amount","type": "uint256"}],"name": "mint","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "tradingStarted","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [{"name": "_owner","type": "address"}],"name": "balanceOf","outputs": [{"name": "balance","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [],"name": "stopTrading","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [],"name": "finishMinting","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "owner","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "symbol","outputs": [{"name": "","type": "string"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_to","type": "address"},{"name": "_value","type": "uint256"}],"name": "transfer","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [{"name": "_owner","type": "address"},{"name": "_spender","type": "address"}],"name": "allowance","outputs": [{"name": "remaining","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "newOwner","type": "address"}],"name": "transferOwnership","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"anonymous": false,"inputs": [{"indexed": true,"name": "to","type": "address"},{"indexed": false,"name": "value","type": "uint256"}],"name": "Mint","type": "event"},{"anonymous": false,"inputs": [],"name": "MintFinished","type": "event"},{"anonymous": false,"inputs": [{"indexed": true,"name": "owner","type": "address"},{"indexed": true,"name": "spender","type": "address"},{"indexed": false,"name": "value","type": "uint256"}],"name": "Approval","type": "event"},{"anonymous": false,"inputs": [{"indexed": true,"name": "from","type": "address"},{"indexed": true,"name": "to","type": "address"},{"indexed": false,"name": "value","type": "uint256"}],"name": "Transfer","type": "event"}]
 */
contract AbleToken is MintableToken {

  string public name = "ABLE Token";
  string public symbol = "ABLE";
  uint public decimals = 18;

  bool public tradingStarted = false;

  /**
   * @dev modifier that throws if trading has not started yet
   */
  modifier hasStartedTrading() {
    require(tradingStarted);
    _;
  }

  /**
   * @dev Allows the owner to enable the trading.
   */
  function startTrading() onlyOwner {
    tradingStarted = true;
  }
  
  /**
   * @dev Allows the owner to disable the trading.
   */
  function stopTrading() onlyOwner {
    tradingStarted = false;
  }

  /**
   * @dev Allows anyone to transfer the ABLE tokens once trading has started
   * @param _to the recipient address of the tokens. 
   * @param _value number of tokens to be transfered. 
   */
  function transfer(address _to, uint _value) hasStartedTrading {
    super.transfer(_to, _value);
  }

   /**
   * @dev Allows anyone to transfer the ABLE tokens once trading has started
   * @param _from address The address which you want to send tokens from
   * @param _to address The address which you want to transfer to
   * @param _value uint the amout of tokens to be transfered
   */
  function transferFrom(address _from, address _to, uint _value) hasStartedTrading {
    super.transferFrom(_from, _to, _value);
  }

}


/**
 * @title MainSale
 * @dev The main ABLE token sale contract
 * 
 * ABI
 * [{"constant": false,"inputs": [{"name": "_multisigVault","type": "address"}],"name": "setMultisigVault","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [],"name": "startTrading","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [{"name": "authorizerIndex","type": "uint256"}],"name": "getAuthorizer","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "exchangeRate","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "altDeposits","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_salePeriod","type": "string"}],"name": "setSalePeriod","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [{"name": "recipient","type": "address"},{"name": "tokens","type": "uint256"}],"name": "authorizedCreateTokens","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "ethDeposits","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [],"name": "stopTrading","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [],"name": "finishMinting","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "owner","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_exchangeRate","type": "address"}],"name": "setExchangeRate","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "salePeriod","outputs": [{"name": "","type": "string"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_token","type": "address"}],"name": "retrieveTokens","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [{"name": "totalAltDeposits","type": "uint256"}],"name": "setAltDeposit","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "start","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "recipient","type": "address"}],"name": "createTokens","outputs": [],"payable": true,"stateMutability": "payable","type": "function"},{"constant": false,"inputs": [{"name": "_addr","type": "address"}],"name": "addAuthorized","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "multisigVault","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "newOwner","type": "address"}],"name": "transferOwnership","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": false,"inputs": [{"name": "_start","type": "uint256"}],"name": "setStart","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [],"name": "hardCap","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": true,"inputs": [],"name": "token","outputs": [{"name": "","type": "address"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "_hardCap","type": "address"}],"name": "setHardCap","outputs": [],"payable": false,"stateMutability": "nonpayable","type": "function"},{"constant": true,"inputs": [{"name": "_addr","type": "address"}],"name": "isAuthorized","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "view","type": "function"},{"payable": true,"stateMutability": "payable","type": "fallback"},{"anonymous": false,"inputs": [{"indexed": false,"name": "recipient","type": "address"},{"indexed": false,"name": "ether_amount","type": "uint256"},{"indexed": false,"name": "pay_amount","type": "uint256"},{"indexed": false,"name": "exchangerate","type": "uint256"}],"name": "TokenSold","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"name": "recipient","type": "address"},{"indexed": false,"name": "pay_amount","type": "uint256"}],"name": "AuthorizedCreate","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"name": "hardcap","type": "uint256[]"}],"name": "hardcapChanged","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"name": "salePeriod","type": "uint256"}],"name": "salePreiodChanged","type": "event"},{"anonymous": false,"inputs": [],"name": "MainSaleClosed","type": "event"}]
 */
contract MainSale is Ownable, Authorizable {
  using SafeMath for uint;
  event TokenSold(address recipient, uint ether_amount, uint pay_amount, uint exchangerate);
  event AuthorizedCreate(address recipient, uint pay_amount);
  event hardcapChanged(uint[] hardcap);
  event salePreiodChanged(uint salePeriod);
  event MainSaleClosed();

  AbleToken public token = new AbleToken();

  address public multisigVault;
  
  ExchangeRate public exchangeRate;
  HardCap public hardCap;
  string public salePeriod = "";
  uint public ethDeposits = 0;
  uint public altDeposits = 0;
  uint public start = 1519614000; // Mon, 26 Feb 2018 12:00:00 GMT+09:00

  /**
   * @dev modifier to allow token creation only when the sale IS ON
   */
  modifier saleIsOn() {
    require(now > start && now < start + 30 days);
    _;
  }

  /**
   * @dev modifier to allow token creation only when the hardcap has not been reached
   */
  modifier isUnderHardCap() {
    require(ethDeposits + altDeposits <= hardCap.getCap(salePeriod));
    _;
  }

  /**
   * @dev Allows anyone to create tokens by depositing ether.
   * @param recipient the recipient to receive tokens. 
   */
  function createTokens(address recipient) public isUnderHardCap saleIsOn payable {
    uint rate;
    rate = exchangeRate.getRate(salePeriod);
    uint tokens = rate.mul(msg.value);
    ethDeposits = ethDeposits.add(msg.value);
    token.mint(recipient, tokens);
    require(multisigVault.send(msg.value));
    TokenSold(recipient, msg.value, tokens, rate);
  }


  /**
   * @dev Allows to set the toal alt deposit measured in ETH to make sure the hardcap includes other deposits
   * @param totalAltDeposits total amount ETH equivalent
   */
  function setAltDeposit(uint totalAltDeposits) public onlyOwner {
    altDeposits = totalAltDeposits;
  }

  /**
   * @dev Allows authorized acces to create tokens. This is used for Bitcoin and ERC20 deposits
   * @param recipient the recipient to receive tokens.
   * @param tokens the number of tokens to be created. 
   */
  function authorizedCreateTokens(address recipient, uint tokens) public onlyAuthorized {
    token.mint(recipient, tokens);
    AuthorizedCreate(recipient, tokens);
  }


  /**
   * @dev Allows the owner to set the starting time.
   * @param _start the new _start
   */
  function setStart(uint _start) public onlyOwner {
    start = _start;
  }

  /**
   * @dev Allows the owner to set the multisig contract.
   * @param _multisigVault the multisig contract address
   */
  function setMultisigVault(address _multisigVault) public onlyOwner {
    if (_multisigVault != address(0)) {
      multisigVault = _multisigVault;
    }
  }

  /**
   * @dev Allows the owner to set the exchangerate contract.
   * @param _exchangeRate the exchangerate address
   */
  function setExchangeRate(address _exchangeRate) public onlyOwner {
    exchangeRate = ExchangeRate(_exchangeRate);
  }
  
  /**
   * @dev Allows the owner to set the hardcap contract.
   * @param _hardCap the hardcap address
   */
  function setHardCap(address _hardCap) public onlyOwner {
    hardCap = HardCap(_hardCap);
  }
  
  /**
   * @dev Allows the owner to set the saleperiod.
   * @param _salePeriod the saleperiod
   */
  function setSalePeriod(string _salePeriod) public onlyOwner {
    salePeriod = _salePeriod;
    ethDeposits = 0;
  }

  /**
   * @dev Allows the owner to finish the minting. This will create the 
   * restricted tokens and then close the minting.
   * Then the ownership of the ABLE token contract is transfered 
   * to this owner.
   */
  function finishMinting() public onlyOwner {
    token.finishMinting();
    token.transferOwnership(owner);
    MainSaleClosed();
  }
  
  /**
   * @dev Allows the owner to start the trading ABLE tokens. 
   */
  function startTrading() public onlyOwner {
    token.startTrading();
  }
  
  /**
   * @dev Allows the owner to stop the trading ABLE tokens. 
   */
  function stopTrading() public onlyOwner {
    token.stopTrading();
  }

  /**
   * @dev Allows the owner to transfer ERC20 tokens to the multi sig vault
   * @param _token the contract address of the ERC20 contract
   */
  function retrieveTokens(address _token) public onlyOwner {
    ERC20 token = ERC20(_token);
    token.transfer(multisigVault, token.balanceOf(this));
  }

  /**
   * @dev Fallback function which receives ether and created the appropriate number of tokens for the 
   * msg.sender.
   */
  function() external payable {
    createTokens(msg.sender);
  }

}