feat(ymax-planner): Calculate steps by linear programming over a model of the blockchain network

.prettierrc.json5

@@ -28,6 +28,16 @@
         plugins: ['prettier-plugin-sh'],
       },
     },
+    {
+      // Keep network definitions readable on wide lines
+      files: [
+        'packages/portfolio-contract/src/network/network.prod.ts',
+        'packages/portfolio-contract/test/network/test-network.ts',
+      ],
+      options: {
+        printWidth: 180,
+      },
+    },
   ],
   singleQuote: true,
 }

multichain-testing/scripts/ymax-tool.ts

@@ -13,10 +13,8 @@ import {
   type ProposalType,
   type TargetAllocation,
 } from '@aglocal/portfolio-contract/src/type-guards.ts';
-import {
-  makePortfolioQuery,
-  makePortfolioSteps,
-} from '@aglocal/portfolio-contract/tools/portfolio-actors.ts';
+import { makePortfolioSteps } from '@aglocal/portfolio-contract/src/plan-transfers.ts';
+import { makePortfolioQuery } from '@aglocal/portfolio-contract/tools/portfolio-actors.ts';
 import {
   axelarConfigTestnet,
   gmpAddresses as gmpConfigs,
@@ -157,7 +155,10 @@ const openPositions = async (
   const goal = objectMap(goalData, toAmt);
   console.debug('TODO: address Ethereum-only limitation');
   const evm = 'Ethereum';
-  const { give: giveWFees } = makePortfolioSteps(goal, { evm, feeBrand: BLD });
+  const { give: giveWFees } = await makePortfolioSteps(goal, {
+    evm,
+    feeBrand: BLD,
+  });
   // XXX WIP: contract is to pay BLD fee
   const { GmpFee: _gf, ...give } = giveWFees;
   const proposal: ProposalType['openPortfolio'] = {

packages/portfolio-contract/package.json

@@ -51,6 +51,7 @@
     "@endo/marshal": "^1.8.0",
     "@endo/pass-style": "^1.6.3",
     "@endo/patterns": "^1.7.0",
+    "javascript-lp-solver": "^0.4.24",
     "viem": "^2.31.0"
   },
   "ava": {