434 lines
20 KiB
Solidity
434 lines
20 KiB
Solidity
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.19;
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import { Kraiken } from "../../src/Kraiken.sol";
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import { LiquidityManager } from "../../src/LiquidityManager.sol";
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import { Stake } from "../../src/Stake.sol";
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import { ThreePositionStrategy } from "../../src/abstracts/ThreePositionStrategy.sol";
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import { UniswapHelpers } from "../../src/helpers/UniswapHelpers.sol";
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import { IWETH9 } from "../../src/interfaces/IWETH9.sol";
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import { TestEnvironment } from "../../test/helpers/TestBase.sol";
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import { BackgroundLP } from "./BackgroundLP.sol";
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import { SwapExecutor } from "./SwapExecutor.sol";
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import { IUniswapV3Factory } from "@uniswap/v3-core/contracts/interfaces/IUniswapV3Factory.sol";
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import { IUniswapV3Pool } from "@uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol";
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import "forge-std/Script.sol";
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import "forge-std/console2.sol";
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/// @title FuzzingBase
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/// @notice Shared infrastructure for all fuzzing/analysis scripts.
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/// @dev Provides environment setup, trade execution, liquidation, token recovery,
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/// and CSV parsing. Concrete scripts inherit this and implement their own run() logic.
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abstract contract FuzzingBase is Script {
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// ── Constants ──────────────────────────────────────────────────────────
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uint256 internal constant LM_FUNDING_ETH = 200 ether;
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uint256 internal constant LM_INITIAL_WETH = 100 ether;
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uint256 internal constant RECENTER_GAS_LIMIT = 50_000_000;
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uint256 internal constant RECENTER_TIME_ADVANCE = 1 hours;
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uint256 internal constant LIQUIDATION_MAX_ATTEMPTS = 20;
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uint256 internal constant LIQUIDATION_RECENTER_INTERVAL = 3;
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address internal constant DEAD_ADDRESS = address(0xdead);
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uint256 internal constant SELL_PCT_MIN = 20;
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uint256 internal constant SELL_PCT_RANGE = 60;
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// ── Environment ───────────────────────────────────────────────────────
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TestEnvironment internal testEnv;
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IUniswapV3Factory internal factory;
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IUniswapV3Pool internal pool;
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IWETH9 internal weth;
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Kraiken internal kraiken;
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Stake internal stake;
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LiquidityManager internal lm;
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SwapExecutor internal swapExecutor;
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bool internal token0isWeth;
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// ── Actors ────────────────────────────────────────────────────────────
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address internal trader = makeAddr("trader");
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address internal fees = makeAddr("fees");
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BackgroundLP internal backgroundLP;
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// ══════════════════════════════════════════════════════════════════════
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// Environment Setup
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Deploy TestEnvironment and Uniswap factory (call once per script)
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function _initInfrastructure() internal {
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testEnv = new TestEnvironment(fees);
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factory = UniswapHelpers.deployUniswapFactory();
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}
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/// @notice Deploy a fresh pool/LM/optimizer environment
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/// @param optimizer Address of the optimizer contract to use
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/// @param wethIsToken0 Token ordering for the pool
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/// @param uncapped Whether to deploy SwapExecutor in uncapped mode
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function _setupEnvironment(address optimizer, bool wethIsToken0, bool uncapped) internal {
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(factory, pool, weth, kraiken, stake, lm,, token0isWeth) = testEnv.setupEnvironmentWithExistingFactory(factory, wethIsToken0, fees, optimizer);
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swapExecutor = new SwapExecutor(pool, weth, kraiken, token0isWeth, lm, uncapped);
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vm.deal(address(lm), LM_FUNDING_ETH);
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vm.prank(address(lm));
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weth.deposit{ value: LM_INITIAL_WETH }();
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vm.prank(fees);
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try lm.recenter() { } catch { }
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}
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/// @notice Overload: setup with custom LM funding
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function _setupEnvironment(address optimizer, bool wethIsToken0, bool uncapped, uint256 lmFundingEth) internal {
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(factory, pool, weth, kraiken, stake, lm,, token0isWeth) = testEnv.setupEnvironmentWithExistingFactory(factory, wethIsToken0, fees, optimizer);
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swapExecutor = new SwapExecutor(pool, weth, kraiken, token0isWeth, lm, uncapped);
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vm.deal(address(lm), lmFundingEth);
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vm.prank(address(lm));
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weth.deposit{ value: lmFundingEth / 2 }();
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vm.prank(fees);
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try lm.recenter() { } catch { }
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}
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// ══════════════════════════════════════════════════════════════════════
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// Background Liquidity (Gaussian competition)
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Deploy background LP with Gaussian-approximating stacked positions.
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/// KRK is acquired by buying from the pool (realistic — no free minting).
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/// @param ethPerLayer ETH per layer (5 layers total). Half goes to buying KRK,
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/// half stays as WETH for the liquidity positions.
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function _deployBackgroundLP(uint256 ethPerLayer) internal {
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backgroundLP = new BackgroundLP(pool, weth, kraiken, token0isWeth);
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// Fund with ETH (2× total: half to buy KRK, half for LP positions)
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uint256 totalEth = ethPerLayer * 5;
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vm.deal(address(backgroundLP), totalEth * 4);
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vm.prank(address(backgroundLP));
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weth.deposit{ value: totalEth * 2 }();
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// Buy KRK from the pool — just like a real LP would.
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// Buy in small chunks with recenters to avoid overshooting thin anchors.
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address bgAddr = address(backgroundLP);
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uint256 chunkSize = totalEth / 5;
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for (uint256 i = 0; i < 5; i++) {
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uint256 buyAmount = chunkSize;
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uint256 wethBal = weth.balanceOf(bgAddr);
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if (buyAmount > wethBal / 2) buyAmount = wethBal / 2; // keep some WETH for LP
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if (buyAmount == 0) break;
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vm.startPrank(bgAddr);
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weth.transfer(address(swapExecutor), buyAmount);
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vm.stopPrank();
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vm.prank(bgAddr);
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try swapExecutor.executeBuy(buyAmount, bgAddr) { } catch { }
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// Recenter between chunks to rebuild positions
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vm.warp(block.timestamp + 1 hours);
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vm.roll(block.number + 1);
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vm.prank(fees);
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try lm.recenter() { } catch { }
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}
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backgroundLP.rebalance(ethPerLayer);
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}
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/// @notice Rebalance background LP positions to track current tick.
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/// Uses existing token balances — no new ETH or KRK injected.
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function _rebalanceBackgroundLP(uint256 ethPerLayer) internal {
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if (address(backgroundLP) == address(0)) return;
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backgroundLP.rebalance(ethPerLayer);
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}
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/// @notice Get fee revenue collected by feeDestination
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/// @return feeWeth WETH fees, feeKrk KRK fees
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function _getFeeRevenue() internal view returns (uint256 feeWeth, uint256 feeKrk) {
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feeWeth = weth.balanceOf(fees);
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feeKrk = kraiken.balanceOf(fees);
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}
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// ══════════════════════════════════════════════════════════════════════
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// Staking Setup
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Pre-seed staking to simulate a given sentiment level.
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/// Buys KRK from the pool and stakes it at the given tax rate.
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/// @param stakingPct Target % of authorized stake to fill (0-100, in whole %)
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/// @param taxRateIdx Tax rate index (0-29, lower = cheaper = more bullish)
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function _seedStaking(uint256 stakingPct, uint32 taxRateIdx) internal {
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if (stakingPct == 0) return;
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address staker = makeAddr("staker");
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// Buy KRK for staking — use 50 ETH per attempt, loop until target met
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uint256 maxAttempts = 20;
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for (uint256 attempt = 0; attempt < maxAttempts; attempt++) {
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// Check current staking level
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uint256 currentPct = stake.getPercentageStaked() * 100 / 1e18;
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if (currentPct >= stakingPct) break;
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// Fund staker with ETH
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vm.deal(staker, 100 ether);
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vm.prank(staker);
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weth.deposit{ value: 50 ether }();
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// Buy KRK
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vm.startPrank(staker);
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weth.transfer(address(swapExecutor), 50 ether);
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vm.stopPrank();
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vm.prank(staker);
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try swapExecutor.executeBuy(50 ether, staker) { }
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catch {
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break;
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}
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// Recenter to rebuild positions
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vm.warp(block.timestamp + 1 hours);
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vm.roll(block.number + 1);
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vm.prank(fees);
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try lm.recenter() { } catch { }
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// Stake all KRK
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uint256 krkBal = kraiken.balanceOf(staker);
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if (krkBal == 0) break;
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vm.startPrank(staker);
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kraiken.approve(address(stake), krkBal);
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uint256[] memory empty = new uint256[](0);
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try stake.snatch(krkBal, staker, taxRateIdx, empty) { }
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catch {
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vm.stopPrank();
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break;
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}
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vm.stopPrank();
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}
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// Final recenter to pick up new optimizer params
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vm.warp(block.timestamp + 1 hours);
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vm.roll(block.number + 1);
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vm.prank(fees);
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try lm.recenter() { } catch { }
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}
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// ══════════════════════════════════════════════════════════════════════
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// Trade Execution
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Execute a buy trade via the SwapExecutor
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/// @return success Whether the buy produced a non-zero result
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function _executeBuy(uint256 amount) internal returns (bool success) {
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if (amount == 0 || weth.balanceOf(trader) < amount) return false;
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vm.startPrank(trader);
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weth.transfer(address(swapExecutor), amount);
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try swapExecutor.executeBuy(amount, trader) returns (uint256 actualAmount) {
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vm.stopPrank();
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_recoverStuckTokens();
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return actualAmount > 0;
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} catch {
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vm.stopPrank();
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_recoverStuckTokens();
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return false;
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}
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}
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/// @notice Execute a sell trade via the SwapExecutor
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/// @return success Whether the sell produced a non-zero result
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function _executeSell(uint256 amount) internal returns (bool success) {
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if (amount == 0 || kraiken.balanceOf(trader) < amount) return false;
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vm.startPrank(trader);
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kraiken.transfer(address(swapExecutor), amount);
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try swapExecutor.executeSell(amount, trader) returns (uint256 actualAmount) {
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vm.stopPrank();
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_recoverStuckTokens();
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return actualAmount > 0;
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} catch {
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vm.stopPrank();
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_recoverStuckTokens();
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return false;
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}
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}
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// ══════════════════════════════════════════════════════════════════════
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// Recenter
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Advance time and attempt a recenter
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function _tryRecenter() internal returns (bool) {
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vm.warp(block.timestamp + RECENTER_TIME_ADVANCE);
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vm.roll(block.number + 1);
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vm.prank(fees);
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try lm.recenter{ gas: RECENTER_GAS_LIMIT }() {
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return true;
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} catch {
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return false;
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}
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}
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// ══════════════════════════════════════════════════════════════════════
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// Liquidation
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Sell all trader's KRAIKEN, retrying with recenters between attempts
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function _liquidateTraderHoldings() internal {
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uint256 remaining = kraiken.balanceOf(trader);
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uint256 attempts;
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while (remaining > 0 && attempts < LIQUIDATION_MAX_ATTEMPTS) {
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uint256 prev = remaining;
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uint256 wethBefore = weth.balanceOf(trader);
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vm.startPrank(trader);
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kraiken.transfer(address(swapExecutor), remaining);
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vm.stopPrank();
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try swapExecutor.executeSell(remaining, trader) {
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if (weth.balanceOf(trader) <= wethBefore) {
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_recoverStuckTokens();
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break;
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}
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} catch {
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_recoverStuckTokens();
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break;
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}
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_recoverStuckTokens();
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if (attempts % LIQUIDATION_RECENTER_INTERVAL == LIQUIDATION_RECENTER_INTERVAL - 1) {
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_tryRecenter();
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}
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remaining = kraiken.balanceOf(trader);
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if (remaining >= prev) break;
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unchecked {
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attempts++;
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}
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}
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_recoverStuckTokens();
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}
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// ══════════════════════════════════════════════════════════════════════
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// Token Recovery & Cleanup
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// ══════════════════════════════════════════════════════════════════════
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/// @notice Recover any tokens stuck in SwapExecutor back to the trader
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function _recoverStuckTokens() internal {
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uint256 stuckKraiken = kraiken.balanceOf(address(swapExecutor));
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if (stuckKraiken > 0) {
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vm.prank(address(swapExecutor));
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kraiken.transfer(trader, stuckKraiken);
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}
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uint256 stuckWeth = weth.balanceOf(address(swapExecutor));
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if (stuckWeth > 0) {
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vm.prank(address(swapExecutor));
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weth.transfer(trader, stuckWeth);
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}
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}
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/// @notice Burn all trader + SwapExecutor tokens to prevent PnL leakage between runs
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function _cleanupTraderTokens() internal {
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uint256 leftoverWeth = weth.balanceOf(trader);
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|||
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|
if (leftoverWeth > 0) {
|
|||
|
|
vm.prank(trader);
|
|||
|
|
weth.transfer(DEAD_ADDRESS, leftoverWeth);
|
|||
|
|
}
|
|||
|
|
uint256 leftoverKraiken = kraiken.balanceOf(trader);
|
|||
|
|
if (leftoverKraiken > 0) {
|
|||
|
|
vm.prank(trader);
|
|||
|
|
kraiken.transfer(DEAD_ADDRESS, leftoverKraiken);
|
|||
|
|
}
|
|||
|
|
uint256 stuckWeth = weth.balanceOf(address(swapExecutor));
|
|||
|
|
if (stuckWeth > 0) {
|
|||
|
|
vm.prank(address(swapExecutor));
|
|||
|
|
weth.transfer(DEAD_ADDRESS, stuckWeth);
|
|||
|
|
}
|
|||
|
|
uint256 stuckKraiken = kraiken.balanceOf(address(swapExecutor));
|
|||
|
|
if (stuckKraiken > 0) {
|
|||
|
|
vm.prank(address(swapExecutor));
|
|||
|
|
kraiken.transfer(DEAD_ADDRESS, stuckKraiken);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ══════════════════════════════════════════════════════════════════════
|
|||
|
|
// LM ETH Measurement
|
|||
|
|
// ══════════════════════════════════════════════════════════════════════
|
|||
|
|
|
|||
|
|
/// @notice Approximate total ETH attributable to the LM (direct balance + pool WETH)
|
|||
|
|
/// @dev Pool WETH includes both LM position ETH and trader buy ETH in transit.
|
|||
|
|
/// This is a rough proxy — trader PnL is the reliable safety metric.
|
|||
|
|
function _getLmSystemEth() internal view returns (uint256) {
|
|||
|
|
return address(lm).balance + weth.balanceOf(address(lm)) + weth.balanceOf(address(pool));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ══════════════════════════════════════════════════════════════════════
|
|||
|
|
// CSV Parsing Utilities
|
|||
|
|
// ══════════════════════════════════════════════════════════════════════
|
|||
|
|
|
|||
|
|
/// @notice Parse a comma-separated string of uint256 values
|
|||
|
|
function _parseUintArray(string memory csv) internal pure returns (uint256[] memory) {
|
|||
|
|
bytes memory b = bytes(csv);
|
|||
|
|
uint256 count = 1;
|
|||
|
|
for (uint256 i = 0; i < b.length; i++) {
|
|||
|
|
if (b[i] == ",") count++;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
uint256[] memory result = new uint256[](count);
|
|||
|
|
uint256 idx;
|
|||
|
|
uint256 start;
|
|||
|
|
|
|||
|
|
for (uint256 i = 0; i <= b.length; i++) {
|
|||
|
|
if (i == b.length || b[i] == ",") {
|
|||
|
|
uint256 num;
|
|||
|
|
for (uint256 j = start; j < i; j++) {
|
|||
|
|
require(b[j] >= "0" && b[j] <= "9", "Invalid number in CSV");
|
|||
|
|
num = num * 10 + (uint256(uint8(b[j])) - 48);
|
|||
|
|
}
|
|||
|
|
result[idx] = num;
|
|||
|
|
idx++;
|
|||
|
|
start = i + 1;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ══════════════════════════════════════════════════════════════════════
|
|||
|
|
// String Helpers
|
|||
|
|
// ══════════════════════════════════════════════════════════════════════
|
|||
|
|
|
|||
|
|
/// @notice Generate a random 4-character alphanumeric ID
|
|||
|
|
function _generateScenarioId() internal view returns (string memory) {
|
|||
|
|
uint256 rand = uint256(keccak256(abi.encodePacked(block.timestamp, block.prevrandao)));
|
|||
|
|
bytes memory chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
|
|||
|
|
bytes memory result = new bytes(4);
|
|||
|
|
|
|||
|
|
for (uint256 i = 0; i < 4; i++) {
|
|||
|
|
result[i] = chars[rand % chars.length];
|
|||
|
|
rand = rand / chars.length;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return string(result);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// @notice Pad a number with leading zeros
|
|||
|
|
function _padNumber(uint256 num, uint256 digits) internal pure returns (string memory) {
|
|||
|
|
string memory numStr = vm.toString(num);
|
|||
|
|
bytes memory numBytes = bytes(numStr);
|
|||
|
|
|
|||
|
|
if (numBytes.length >= digits) return numStr;
|
|||
|
|
|
|||
|
|
bytes memory result = new bytes(digits);
|
|||
|
|
uint256 padding = digits - numBytes.length;
|
|||
|
|
|
|||
|
|
for (uint256 i = 0; i < padding; i++) {
|
|||
|
|
result[i] = "0";
|
|||
|
|
}
|
|||
|
|
for (uint256 i = 0; i < numBytes.length; i++) {
|
|||
|
|
result[padding + i] = numBytes[i];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return string(result);
|
|||
|
|
}
|
|||
|
|
}
|