contract ARCToken is StandardToken, SafeMath {

    string public name = "Arcade Token";
    string public symbol = "ARC";
    uint public decimals = 18;
    uint public startBlock; //crowdsale start block (set in constructor)
    uint public endBlock; //crowdsale end block (set in constructor)

    // Initial multisig address (set in constructor)
    // All deposited ETH will be instantly forwarded to this address.
    // Address is a multisig wallet.
    address public multisig = 0x0;

    address public founder = 0x0;
    address public developer = 0x0;
    address public rewards = 0x0;
    bool public rewardAddressesSet = false;

    address public owner = 0x0;
    bool public marketactive = false;

    uint public etherCap = 672000 * 10**18; //max amount raised during crowdsale (8.5M USD worth of ether will be measured with a moving average market price at beginning of the crowdsale)
    uint public rewardsAllocation = 2; //2% tokens allocated post-crowdsale for swarm rewards
    uint public developerAllocation = 6 ; //6% of token supply allocated post-crowdsale for the developer fund
    uint public founderAllocation = 8; //8% of token supply allocated post-crowdsale for the founder allocation
    bool public allocated = false; //this will change to true when the rewards are allocated
    uint public presaleTokenSupply = 0; //this will keep track of the token supply created during the crowdsale
    uint public presaleEtherRaised = 0; //this will keep track of the Ether raised during the crowdsale
    bool public halted = false; //the founder address can set this to true to halt the crowdsale due to emergency
    event Buy(address indexed sender, uint eth, uint fbt);

    function ARCToken(address multisigInput, uint startBlockInput, uint endBlockInput) {
        owner = msg.sender;
        multisig = multisigInput;

        startBlock = startBlockInput;
        endBlock = endBlockInput;
    }

    function setRewardAddresses(address founderInput, address developerInput, address rewardsInput){
        if (msg.sender != owner) throw;
        if (rewardAddressesSet) throw;
        founder = founderInput;
        developer = developerInput;
        rewards = rewardsInput;
        rewardAddressesSet = true;
    }

    function price() constant returns(uint) {
        return testPrice(block.number);        
    }

    // price() exposed for unit tests
    function testPrice(uint blockNumber) constant returns(uint) {
        if (blockNumber>=startBlock && blockNumber<startBlock+250) return 125; //power hour
        if (blockNumber<startBlock || blockNumber>endBlock) return 75; //default price
        return 75 + 4*(endBlock - blockNumber)/(endBlock - startBlock + 1)*34/4; //crowdsale price
    }

    /**
     * Main token buy function.
     *
     * Security review
     *
     * - Integer math: ok - using SafeMath
     *
     * - halt flag added - ok
     *
     * Applicable tests:
     *
     * - Test halting, buying, and failing
     * - Test buying on behalf of a recipient
     * - Test buy
     * - Test unhalting, buying, and succeeding
     * - Test buying after the sale ends
     *
     */
    function buyRecipient(address recipient) {
        if (block.number<startBlock || block.number>endBlock || safeAdd(presaleEtherRaised,msg.value)>etherCap || halted) throw;
        uint tokens = safeMul(msg.value, price());
        balances[recipient] = safeAdd(balances[recipient], tokens);
        totalSupply = safeAdd(totalSupply, tokens);
        presaleEtherRaised = safeAdd(presaleEtherRaised, msg.value);

        if (!multisig.send(msg.value)) throw; //immediately send Ether to multisig address

        // if etherCap is reached - activate the market
        if (presaleEtherRaised == etherCap && !marketactive){
            marketactive = true;
        }

        Buy(recipient, msg.value, tokens);

    }

    /**
     * Set up founder address token balance.
     *
     * allocateBountyAndEcosystemTokens() must be calld first.
     *
     * Security review
     *
     * - Integer math: ok - only called once with fixed parameters
     *
     * Applicable tests:
     *
     * - Test bounty and ecosystem allocation
     * - Test bounty and ecosystem allocation twice
     *
     */
    function allocateTokens() {
        // make sure founder/developer/rewards addresses are configured
        if(founder == 0x0 || developer == 0x0 || rewards == 0x0) throw;
        // owner/founder/developer/rewards addresses can call this function
        if (msg.sender != owner && msg.sender != founder && msg.sender != developer && msg.sender != rewards ) throw;
        // it should only continue if endBlock has passed OR presaleEtherRaised has reached the cap
        if (block.number <= endBlock && presaleEtherRaised < etherCap) throw;
        if (allocated) throw;
        presaleTokenSupply = totalSupply;
        // total token allocations add up to 16% of total coins, so formula is reward=allocation_in_percent/84 .
        balances[founder] = safeAdd(balances[founder], presaleTokenSupply * founderAllocation / 84 );
        totalSupply = safeAdd(totalSupply, presaleTokenSupply * founderAllocation / 84);
        
        balances[developer] = safeAdd(balances[developer], presaleTokenSupply * developerAllocation / 84);
        totalSupply = safeAdd(totalSupply, presaleTokenSupply * developerAllocation / 84);
        
        balances[rewards] = safeAdd(balances[rewards], presaleTokenSupply * rewardsAllocation / 84);
        totalSupply = safeAdd(totalSupply, presaleTokenSupply * rewardsAllocation / 84);

        allocated = true;

    }

    /**
     * Emergency Stop crowdsale.
     *
     *  Applicable tests:
     *
     * - Test unhalting, buying, and succeeding
     */
    function halt() {
        if (msg.sender!=founder && msg.sender != developer) throw;
        halted = true;
    }

    function unhalt() {
        if (msg.sender!=founder && msg.sender != developer) throw;
        halted = false;
    }

    /**
     * ERC 20 Standard Token interface transfer function
     *
     * Prevent transfers until token sale is over.
     *
     * Applicable tests:
     *
     * - Test transfer after restricted period
     * - Test transfer after market activated
     */
    function transfer(address _to, uint256 _value) returns (bool success) {
        if (block.number <= endBlock && marketactive == false) throw;
        return super.transfer(_to, _value);
    }
    /**
     * ERC 20 Standard Token interface transfer function
     *
     * Prevent transfers until token sale is over.
     */
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
        if (block.number <= endBlock && marketactive == false) throw;
        return super.transferFrom(_from, _to, _value);
    }

    /**
     * Direct deposits buys tokens
     */
    function() payable {
        buyRecipient(msg.sender);
    }

}
/**
 * Arcade City crowdsale crowdsale contract.
 *
 * Security criteria evaluated against http://ethereum.stackexchange.com/questions/8551/methodological-security-review-of-a-smart-contract
 *
 *
 */
function buyRecipient(address recipient) {
    if (block.number<startBlock || block.number>endBlock || safeAdd(presaleEtherRaised,msg.value)>etherCap || halted) throw;
    uint tokens = safeMul(msg.value, price());
    balances[recipient] = safeAdd(balances[recipient], tokens);
    totalSupply = safeAdd(totalSupply, tokens);
    presaleEtherRaised = safeAdd(presaleEtherRaised, msg.value);

    if (!multisig.send(msg.value)) throw; //immediately send Ether to multisig address

    // if etherCap is reached - activate the market
    if (presaleEtherRaised == etherCap && !marketactive){
        marketactive = true;
    }

    Buy(recipient, msg.value, tokens);

}

/**
 * Main token buy function.
 *
 * Security review
 *
 * - Integer math: ok - using SafeMath
 *
 * - halt flag added - ok
 *
 * Applicable tests:
 *
 * - Test halting, buying, and failing
 * - Test buying on behalf of a recipient
 * - Test buy
 * - Test unhalting, buying, and succeeding
 * - Test buying after the sale ends
 *
 */