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| 1 | +pragma solidity ^0.4.13; |
| 2 | + |
| 3 | +contract JobInterface { |
| 4 | + /** |
| 5 | + * @dev Starting hash of the job |
| 6 | + */ |
| 7 | + bytes32 public descriptor; |
| 8 | + |
| 9 | + /** |
| 10 | + * @dev Result hash of the job |
| 11 | + */ |
| 12 | + bytes32 public result; |
| 13 | + |
| 14 | + /** |
| 15 | + * @dev Start time timestamp |
| 16 | + */ |
| 17 | + uint256 public start; |
| 18 | + |
| 19 | + /** |
| 20 | + * @dev End time timestamp |
| 21 | + */ |
| 22 | + uint256 public end; |
| 23 | + |
| 24 | + /** |
| 25 | + * @dev An agent who pays the job. |
| 26 | + */ |
| 27 | + address public payer; |
| 28 | + |
| 29 | + /** |
| 30 | + * @dev An agent to whom the job is paid. |
| 31 | + */ |
| 32 | + address public payee; |
| 33 | + |
| 34 | + /** |
| 35 | + * @dev Broadcast new hash as job result. |
| 36 | + */ |
| 37 | + event Result(bytes32 result); |
| 38 | +} |
| 39 | + |
| 40 | +contract JobValidator is JobInterface { |
| 41 | + |
| 42 | + /** |
| 43 | + * @dev Reward for validator in AGI. |
| 44 | + */ |
| 45 | + address public validator; |
| 46 | + |
| 47 | + /** |
| 48 | + * @dev Validation status |
| 49 | + * 0 == pending && 1 == accepted && 2 == rejected |
| 50 | + */ |
| 51 | + address public status = 0; |
| 52 | + |
| 53 | + /** |
| 54 | + * @dev Reward for validator in AGI. |
| 55 | + */ |
| 56 | + uint256 public reward; |
| 57 | + |
| 58 | + /** |
| 59 | + * @dev Completed event to notice the validators pool |
| 60 | + */ |
| 61 | + event Completed(); |
| 62 | + |
| 63 | + /** |
| 64 | + * @dev Approved event to notice the parties |
| 65 | + */ |
| 66 | + event Accepted(); |
| 67 | + |
| 68 | + /** |
| 69 | + * @dev Rejected event to notice the parties |
| 70 | + */ |
| 71 | + event Rejected(); |
| 72 | + |
| 73 | + |
| 74 | + /** |
| 75 | + * @dev Confirm job result |
| 76 | + */ |
| 77 | + function accept() public { |
| 78 | + validator = msg.sender; |
| 79 | + status = 1; |
| 80 | + |
| 81 | + Accepted(); |
| 82 | + } |
| 83 | + |
| 84 | + /** |
| 85 | + * @dev Reject job result |
| 86 | + */ |
| 87 | + function reject() public { |
| 88 | + validator = msg.sender; |
| 89 | + status = 2; |
| 90 | + |
| 91 | + Rejected(); |
| 92 | + } |
| 93 | + |
| 94 | +} |
| 95 | + |
| 96 | +contract Job is JobValidator { |
| 97 | + |
| 98 | + /** |
| 99 | + * @dev Kovan AGI token. |
| 100 | + * https://kovan.etherscan.io/token/0x3b226ff6aad7851d3263e53cb7688d13a07f6e81#readContract |
| 101 | + * ERC20Basic public constant AGI = ERC20Basic(0x3b226ff6aad7851d3263e53cb7688d13a07f6e81); |
| 102 | + */ |
| 103 | + |
| 104 | + /** |
| 105 | + * @dev Cost in AGI for the exection of the job |
| 106 | + * (10**8 cogs === 1 AGI) |
| 107 | + */ |
| 108 | + uint256 public cost; |
| 109 | + |
| 110 | + /** |
| 111 | + * @dev Started event |
| 112 | + */ |
| 113 | + event Started(address indexed payer, address indexed payee, bytes32 descriptor, address job); |
| 114 | + |
| 115 | + /** |
| 116 | + * @dev Job constructor. |
| 117 | + * @param _payer An agent who pays the job. |
| 118 | + * @param _payee An agent to whom the job is paid. |
| 119 | + * @param _cost Cost in AGI |
| 120 | + */ |
| 121 | + function Job(address _payer, address _payee, bytes32 _descriptor, uint256 _cost, uint256 _reward) public { |
| 122 | + |
| 123 | + payer = _payer; |
| 124 | + payee = _payee; |
| 125 | + descriptor = _descriptor; |
| 126 | + cost = _cost; |
| 127 | + reward = _reward; |
| 128 | + |
| 129 | + start = now; |
| 130 | + |
| 131 | + Started(payer, payee, descriptor, address(this)); |
| 132 | + } |
| 133 | + |
| 134 | + /** |
| 135 | + * @dev Set result of this Job |
| 136 | + * @param _result Result data hash |
| 137 | + */ |
| 138 | + function setResult(bytes32 _result) public returns (bool) { |
| 139 | + require(msg.sender == payee); |
| 140 | + require(descriptor.length > 0); |
| 141 | + |
| 142 | + end = now; |
| 143 | + |
| 144 | + Result(_result); |
| 145 | + result = _result; |
| 146 | + |
| 147 | + Completed(); |
| 148 | + |
| 149 | + return true; |
| 150 | + } |
| 151 | + |
| 152 | + |
| 153 | + |
| 154 | +} |
| 155 | + |
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