feat: support resetPauseCooldownPeriod (#127)

Author: zimpha

src/misc/PauseController.sol

@@ -23,6 +23,10 @@ contract PauseController is OwnableUpgradeable {
     /// @param component The component that is unpaused.
     event Unpause(address indexed component);
 
+    /// @notice Emitted when the pause cooldown period of a component is reset.
+    /// @param component The component that has its pause cooldown period reset.
+    event ResetPauseCooldownPeriod(address indexed component);
+
     /// @notice Emitted when the pause cooldown period is updated.
     /// @param oldPauseCooldownPeriod The old pause cooldown period.
     /// @param newPauseCooldownPeriod The new pause cooldown period.
@@ -150,6 +154,14 @@ contract PauseController is OwnableUpgradeable {
         emit Unpause(address(component));
     }
 
+    /// @notice Reset the pause cooldown period of a component.
+    /// @param component The component to reset the pause cooldown period.
+    function resetPauseCooldownPeriod(IPausable component) external onlyOwner {
+        lastUnpauseTime[address(component)] = 0;
+
+        emit ResetPauseCooldownPeriod(address(component));
+    }
+
     /// @notice Set the pause cooldown period.
     /// @param newPauseCooldownPeriod The new pause cooldown period.
     function updatePauseCooldownPeriod(uint256 newPauseCooldownPeriod) external onlyOwner {

src/test/misc/PauseController.t.sol

@@ -25,6 +25,7 @@ contract MockPausable is IPausable {
 contract PauseControllerTest is Test {
     event Pause(address indexed component);
     event Unpause(address indexed component);
+    event ResetPauseCooldownPeriod(address indexed component);
     event UpdatePauseCooldownPeriod(uint256 oldPauseCooldownPeriod, uint256 newPauseCooldownPeriod);
 
     uint256 public constant PAUSE_COOLDOWN_PERIOD = 1 days;
@@ -117,8 +118,22 @@ contract PauseControllerTest is Test {
         emit Unpause(address(mockPausable));
         pauseController.unpause(mockPausable);
         assertEq(pauseController.getLastUnpauseTime(mockPausable), block.timestamp);
+        assertFalse(mockPausable.paused());
 
+        // cannot pause before cooldown period
+        vm.expectRevert(PauseController.ErrorCooldownPeriodNotPassed.selector);
+        pauseController.pause(mockPausable);
+
+        // reset pause cooldown period
+        vm.expectEmit(true, false, false, true);
+        emit ResetPauseCooldownPeriod(address(mockPausable));
+        pauseController.resetPauseCooldownPeriod(mockPausable);
+        assertEq(pauseController.getLastUnpauseTime(mockPausable), 0);
+
+        // can pause after reset
         assertFalse(mockPausable.paused());
+        pauseController.pause(mockPausable);
+        assertTrue(mockPausable.paused());
 
         vm.stopPrank();
     }