feat: use real scanner in optimistic deleverage bot

Author: doomsower

src/config/deleverage-liquidator.ts

@@ -1,5 +1,4 @@
 import { zommandRegistry } from "@gearbox-protocol/cli-utils";
-import { ZodAddress } from "@gearbox-protocol/sdk";
 import { z } from "zod/v4";
 import { CommonSchema } from "./common.js";
 
@@ -13,6 +12,18 @@ export const DeleverageLiquidatorSchema = z.object({
     description: "Liquidator mode (full/partial/batch/deleverage)",
     env: "LIQUIDATION_MODE",
   }),
+  /**
+   * In optimistic mode, use real health factor range to scan for accounts
+   * and do not force-enable deleverage bot on accounts.
+   *
+   * This mode can be used to test that deleverage bot is able to detect accounts correctly
+   */
+  useProductionScanner: z.boolean().default(false).register(zommandRegistry, {
+    flags: "--use-production-scanner",
+    description:
+      "In optimistic mode, use real health factor range to scan for accounts and do not force-enable deleverage bot on accounts",
+    env: "USE_PRODUCTION_SCANNER",
+  }),
 });
 
 export type DeleverageLiquidatorSchema = z.infer<

src/services/DeleverageService.ts

@@ -12,7 +12,10 @@ import type {
   BotParameters as TBotParameters,
 } from "@gearbox-protocol/sdk/plugins/bots";
 import type { Address } from "viem";
-import type { Config } from "../config/index.js";
+import type {
+  DeleverageLiquidatorSchema,
+  LiqduiatorConfig,
+} from "../config/index.js";
 import { DI } from "../di.js";
 import { type ILogger, Logger } from "../log/index.js";
 import { DELEVERAGE_PERMISSIONS } from "../utils/permissions.js";
@@ -41,7 +44,7 @@ export default class DeleverageService {
   log!: ILogger;
 
   @DI.Inject(DI.Config)
-  config!: Config;
+  config!: LiqduiatorConfig<DeleverageLiquidatorSchema>;
 
   @DI.Inject(DI.CreditAccountService)
   caService!: ICreditAccountsService;
@@ -63,7 +66,11 @@ export default class DeleverageService {
     blockNumber?: bigint,
   ): Promise<CreditAccountData[]> {
     if (this.config.optimistic) {
-      return accounts_;
+      if (this.config.useProductionScanner) {
+        this.log.debug(`checking which accounts have deleverage bot enabled`);
+      } else {
+        return accounts_;
+      }
     }
 
     const accounts = accounts_.filter(ca => {

src/services/Scanner.ts

@@ -84,24 +84,32 @@ export class Scanner {
     if (this.config.liquidationMode === "deleverage") {
       if (this.deleverage.bots.length === 0) {
         this.log.error("no deleverage bots found");
-        // hang indefinitely
+        // will hang indefinitely
         return;
       }
-      // TODO: support multiple bots
-      if (this.config.optimistic) {
+      if (this.config.optimistic && !this.config.useProductionScanner) {
         this.#minHealthFactor = 0n;
         this.#maxHealthFactor = MAX_UINT256;
       } else {
+        // TODO: support multiple bots
         this.#minHealthFactor = WAD;
         this.#maxHealthFactor =
           (BigInt(this.deleverage.bot.minHealthFactor) * WAD) /
           PERCENTAGE_FACTOR;
-        this.log.info(
-          `deleverage bot max health factor is ${this.deleverage.bot.minHealthFactor / 100}%  (${this.#maxHealthFactor})`,
-        );
       }
     }
 
+    this.log.info(
+      {
+        min: this.#minHealthFactor,
+        max:
+          this.#maxHealthFactor === MAX_UINT256
+            ? "MAX_UINT256"
+            : this.#maxHealthFactor,
+      },
+      "final health factor range",
+    );
+
     // we should not pin block during optimistic liquidations
     // because during optimistic liquidations we need to call evm_mine to make redstone work
     await this.#updateAccounts(
@@ -268,7 +276,6 @@ export class Scanner {
   async #getExpiredCreditAccounts(
     blockNumber?: bigint,
   ): Promise<CreditAccountData[]> {
-    const timestamp = this.caService.sdk.timestamp;
     const expiredCMs = new AddressSet();
     const expiredCmNames: string[] = [];
 

src/services/liquidate/LiquidationStrategyDeleverage.ts

@@ -47,6 +47,10 @@ export default class LiquidationStrategyDeleverage
       throw new Error("warning: deleverage is not supported for v300 accounts");
     }
     const result = await super.makeLiquidatable(ca);
+    if (this.config.useProductionScanner) {
+      this.logger.debug("skipping force-enabling deleverage bot");
+      return result;
+    }
     const { creditFacade } = this.sdk.marketRegister.findCreditManager(
       ca.creditManager,
     );