UniFi

1pragma solidity =0.5.16;
2
3import './UnifiPair.sol';
4
5contract UnifiFactory is IUnifiFactory {
6    bytes32 public constant INIT_CODE_PAIR_HASH = keccak256(abi.encodePacked(type(UnifiPair).creationCode));
7
8    address public feeTo;
9    address public feeToSetter;
10    
11    address public feeController;
12    address public feeControllerSetter;
13    address public wbnb;
14    address public router;    
15    mapping(address => mapping(address => address)) public getPair;
16    address[] public allPairs;
17
18    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
19
20    constructor(address _ufc ,address _wbnb ) public {
21        feeToSetter = msg.sender;
22        feeControllerSetter       =  msg.sender;
23        feeController = _ufc;//change this in future
24        wbnb = _wbnb;
25        
26    }
27
28    function allPairsLength() external view returns (uint) {
29        return allPairs.length;
30    }
31
32    function createPair(address tokenA, address tokenB) external returns (address pair) {
33        require(tokenA != tokenB, 'Unifi: IDENTICAL_ADDRESSES');
34        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
35        require(token0 != address(0), 'Unifi: ZERO_ADDRESS');
36        require(getPair[token0][token1] == address(0), 'Unifi: PAIR_EXISTS'); // single check is sufficient
37        bytes memory bytecode = type(UnifiPair).creationCode;
38        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
39        assembly {
40            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
41        }
42  
43        IUnifiPair(pair).initialize(token0, token1,wbnb);
44        getPair[token0][token1] = pair;
45        getPair[token1][token0] = pair; // populate mapping in the reverse direction
46        allPairs.push(pair);
47        emit PairCreated(token0, token1, pair, allPairs.length);
48    }
49
50    function setFeeTo(address _feeTo) external {
51        require(msg.sender == feeToSetter, 'Unifi: FORBIDDEN');
52        feeTo = _feeTo;
53    }
54
55    function setFeeToSetter(address _feeToSetter) external {
56        require(msg.sender == feeToSetter, 'Unifi: FORBIDDEN');
57        feeToSetter = _feeToSetter;
58    }
59    
60    function setFeeControler(address _feeController) external {
61        require(msg.sender == feeControllerSetter, 'Unifi: FORBIDDEN');
62        feeController = _feeController;
63    }
64
65    function setFeeControlerSetter(address _feeControllerSetter) external {
66        require(msg.sender == feeControllerSetter, 'Unifi: FORBIDDEN');
67        feeControllerSetter = _feeControllerSetter;
68    }
69    
70    function setRouter(address _routerAddress) external {
71        require(msg.sender == feeControllerSetter, 'Unifi: FORBIDDEN');
72        router = _routerAddress;
73    }
74
75}