1  pragma solidity >=0.6.0;
 2  pragma experimental ABIEncoderV2;
 3  
 4  import "../deployment/Deployer.sol";
 5  import "../deployment/ManagedContract.sol";
 6  import "../feeds/DEXOracleV1.sol";
 7  import "../feeds/DEXAggregatorV1.sol";
 8  import "../feeds/DEXFeed.sol";
 9  import "../interfaces/IERC20Details.sol";
10  
11  contract DEXFeedFactory is ManagedContract {
12  
13      address private exchangeAddr;
14      address private deployerAddress;
15      address private timeProviderAddress;
16  
17      function initialize(Deployer deployer) override internal {
18          deployerAddress = address(deployer);
19          timeProviderAddress = deployer.getContractAddress("TimeProvider");
20      }
21      
22      /*
23      	Assumes like dexTokenPair is of Uniswap V2 like 
24      */
25  
26      function create(address underlying, address stable, address dexTokenPair) external returns (address) {
27      	address oracleAddr = address(new DEXOracleV1(deployerAddress, underlying, stable, dexTokenPair));
28      	address aggAddr = address(new DEXAggregatorV1(oracleAddr));
29          string memory dexUdlSymbol = IERC20Details(underlying).symbol();
30          string memory feedName = string(abi.encodePacked(dexUdlSymbol, "/", "USD", "-", dexTokenPair));
31          uint[] memory times;
32          int[] memory prices;
33          address feedAddr = address(
34              new DEXFeed(
35                  feedName,
36                  underlying,
37                  aggAddr,
38                  timeProviderAddress,
39                  0,
40                  times,
41                  prices
42              )
43          );
44          return feedAddr;
45      }
46  }