Minor router logic update and tests (#261)

* updated router behavior to return created vault back to the user after creation

* router tests

* fixed unstake/restake parameter ordering

contracts/Mock/MockERC20.sol

@@ -4,10 +4,37 @@ pragma solidity 0.7.6;
 import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
-contract MockERC20 is ERC20 {
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+import "@openzeppelin/contracts/drafts/IERC20Permit.sol";
+
+contract MockERC20 is ERC20, IERC20Permit {
+    mapping(address => uint256) public override nonces;
+
     constructor(address recipient, uint256 amount) ERC20("MockERC20", "MockERC20") {
         ERC20._mint(recipient, amount);
     }
+
+    // Hard-coded DOMAIN_SEPARATOR for testing purposes only.
+    // In a real implementation, this would be derived from EIP-712 parameters.
+    function DOMAIN_SEPARATOR() external pure override returns (bytes32) {
+        return 0x00;
+    }
+
+    function permit(
+        address owner,
+        address spender,
+        uint256 value,
+        uint256, // deadline - ignored in mock
+        uint8, // v - ignored in mock
+        bytes32, // r - ignored in mock
+        bytes32 // s - ignored in mock
+    ) external override {
+        // For testing, ignore signature checks and deadline.
+        // Simply set allowance directly.
+        _approve(owner, spender, value);
+        // Increment nonce as if a successful permit was used.
+        nonces[owner]++;
+    }
 }
 
 contract MockBAL is ERC20 {

contracts/Mock/MockGeyser.sol

@@ -27,13 +27,22 @@ contract MockGeyser {
             });
     }
 
-    event LogStaked(address vault, uint256 amount, bytes permission);
+    event Staked(address vault, uint256 amount, bytes permission);
+    event UnstakedAndClaimed(address vault, uint256 amount, bytes permission);
 
     function stake(
         address vault,
         uint256 amount,
         bytes calldata permission
     ) external {
-        emit LogStaked(vault, amount, permission);
+        emit Staked(vault, amount, permission);
+    }
+
+    function unstakeAndClaim(
+        address vault,
+        uint256 amount,
+        bytes calldata permission
+    ) external {
+        emit UnstakedAndClaimed(vault, amount, permission);
     }
 }

contracts/Mock/MockVaultFactory.sol

@@ -17,7 +17,7 @@ contract MockVaultFactory is ERC721("MockVaultFactory", "MVF") {
     ) external returns (address) {
         uint256 vaultId = nextVaultId;
         nextVaultId++;
-        _mint(msg.sender, vaultId);
+        ERC721._safeMint(msg.sender, vaultId);
         return address(uint160(vaultId));
     }
 }

contracts/Router/CharmGeyserRouter.sol

@@ -75,12 +75,7 @@ contract CharmGeyserRouter is GeyserRouter {
         bytes calldata permission,
         LiqCreationPayload memory d
     ) external returns (address vault) {
-        // create vault
-        vault = create2Vault(vaultFactory, salt);
-
-        // transfer ownership
-        IERC721(vaultFactory).safeTransferFrom(address(this), vaultOwner, uint256(vault));
-
+        vault = create2Vault(vaultFactory, salt, vaultOwner);
         // create liquidity and stake
         createLiqAndStake(geyser, vault, permission, d);
     }

contracts/Router/GeyserRouter.sol

@@ -25,8 +25,15 @@ contract GeyserRouter is IERC721Receiver {
         return IERC721Receiver.onERC721Received.selector;
     }
 
-    function create2Vault(address vaultFactory, bytes32 salt) public returns (address vault) {
+    function create2Vault(
+        address vaultFactory,
+        bytes32 salt,
+        address vaultOwner
+    ) public returns (address vault) {
+        // create vault
         vault = IFactory(vaultFactory).create2("", salt);
+        // transfer ownership
+        IERC721(vaultFactory).safeTransferFrom(address(this), vaultOwner, uint256(vault));
     }
 
     function depositStake(
@@ -48,10 +55,7 @@ contract GeyserRouter is IERC721Receiver {
         bytes32 salt,
         bytes calldata permission
     ) external returns (address vault) {
-        // create vault
-        vault = create2Vault(vaultFactory, salt);
-        // transfer ownership
-        IERC721(vaultFactory).safeTransferFrom(address(this), vaultOwner, uint256(vault));
+        vault = create2Vault(vaultFactory, salt, vaultOwner);
         // transfer tokens and stake
         depositStake(geyser, vault, amount, permission);
     }
@@ -108,36 +112,29 @@ contract GeyserRouter is IERC721Receiver {
         IGeyser(geyser).stake(vault, permit.value, permission);
     }
 
-    struct StakeRequest {
+    struct GeyserAction {
         address geyser;
         address vault;
         uint256 amount;
         bytes permission;
     }
 
-    function stakeMulti(StakeRequest[] calldata requests) external {
-        for (uint256 index = 0; index < requests.length; index++) {
-            StakeRequest calldata request = requests[index];
-            IGeyser(request.geyser).stake(request.vault, request.amount, request.permission);
+    function stakeMulti(GeyserAction[] calldata actions) external {
+        for (uint256 index = 0; index < actions.length; index++) {
+            GeyserAction calldata act = actions[index];
+            IGeyser(act.geyser).stake(act.vault, act.amount, act.permission);
         }
     }
 
-    struct UnstakeRequest {
-        address geyser;
-        address vault;
-        uint256 amount;
-        bytes permission;
-    }
-
-    function unstakeMulti(UnstakeRequest[] calldata requests) external {
-        for (uint256 index = 0; index < requests.length; index++) {
-            UnstakeRequest calldata request = requests[index];
-            IGeyser(request.geyser).unstakeAndClaim(request.vault, request.amount, request.permission);
+    function unstakeMulti(GeyserAction[] calldata actions) external {
+        for (uint256 index = 0; index < actions.length; index++) {
+            GeyserAction calldata act = actions[index];
+            IGeyser(act.geyser).unstakeAndClaim(act.vault, act.amount, act.permission);
         }
     }
 
-    function unstakeAndRestake(UnstakeRequest calldata r1, StakeRequest calldata r2) external {
-        IGeyser(r1.geyser).stake(r1.vault, r1.amount, r1.permission);
-        IGeyser(r2.geyser).unstakeAndClaim(r2.vault, r2.amount, r2.permission);
+    function unstakeAndRestake(GeyserAction calldata unstakeAct, GeyserAction calldata stakeAct) external {
+        IGeyser(unstakeAct.geyser).unstakeAndClaim(unstakeAct.vault, unstakeAct.amount, unstakeAct.permission);
+        IGeyser(stakeAct.geyser).stake(stakeAct.vault, stakeAct.amount, stakeAct.permission);
     }
 }

frontend/src/sdk/actions.ts

@@ -129,7 +129,11 @@ export const approveCreateDepositStake = async (geyserAddress: string, amount: B
   const token = new Contract(tokenAddress, ERC20_ABI, signer)
 
   const salt = randomBytes(32)
-  const vaultAddress = await router.callStatic.create2Vault(config.VaultFactory.address, salt)
+  const vaultAddress = await router.callStatic.create2Vault(
+    config.VaultFactory.address,
+    salt,
+    await signer.getAddress(),
+  )
   const vault = new Contract(vaultAddress, config.VaultTemplate.abi, signer)
   const lockPermission = await signPermission('Lock', vault, signer, geyserAddress, token.address, amount, '0')
   const args = [geyserAddress, config.VaultFactory.address, await signer.getAddress(), amount, salt, lockPermission]
@@ -186,7 +190,11 @@ export const permitCreateDepositStake = async (geyserAddress: string, amount: Bi
   }
 
   const salt = randomBytes(32)
-  const vaultAddress = await router.callStatic.create2Vault(config.VaultFactory.address, salt)
+  const vaultAddress = await router.callStatic.create2Vault(
+    config.VaultFactory.address,
+    salt,
+    await signer.getAddress(),
+  )
   const vault = new Contract(vaultAddress, config.VaultTemplate.address, signer)
 
   const permit = await signPermitEIP2612(signer, tokenAddress, router.address, amount, deadline)

test/CharmGeyserRouter.ts

@@ -65,7 +65,7 @@ describe('CharmGeyserRouter', function () {
       }
 
       await expect(router.connect(user).createLiqAndStake(geyser.address, vault, '0x', liqPayload))
-        .to.emit(geyser, 'LogStaked')
+        .to.emit(geyser, 'Staked')
         .withArgs(vault, token0Amount.add(token1Amount), '0x')
 
       // After staking, router should have transferred all tokens out
@@ -98,7 +98,7 @@ describe('CharmGeyserRouter', function () {
       const args = [geyser.address, vaultFactory.address, await vaultOwner.getAddress(), salt, '0x', liqPayload]
       const vault = await router.connect(user).callStatic.create2VaultCreateLiqAndStake(...args)
       await expect(router.connect(user).create2VaultCreateLiqAndStake(...args))
-        .to.emit(geyser, 'LogStaked')
+        .to.emit(geyser, 'Staked')
         .withArgs(vault, token0Amount.add(token1Amount), '0x')
       expect(await vaultFactory.ownerOf(1)).to.equal(await vaultOwner.getAddress())
     })
@@ -145,7 +145,7 @@ describe('CharmGeyserRouter', function () {
       }
 
       await expect(router.connect(user).createLiqAndStake(geyser.address, vault, '0x', liqPayload))
-        .to.emit(geyser, 'LogStaked')
+        .to.emit(geyser, 'Staked')
         .withArgs(vault, 0, '0x')
     })
   })