respond works

README.md

@@ -60,9 +60,11 @@ process done with hash 0x5c45998dfbf9ce70bcbb80574ed7a622922d2c775e0a2331fe5a8b8
 # only works for pre fork blocks
 minigeth/go-ethereum 1171895
 (cd mipsevm && ./mipsevm 1171895)
-
 npx hardhat run scripts/deploy.js
 BLOCK=1171895 npx hardhat run scripts/challenge.js
+
+(cd mipsevm && ./mipsevm 1171896 11226379)
+ID=0 BLOCK=1171896 npx hardhat run scripts/respond.js
 ```
 
 ## State Oracle API

contracts/Challenge.sol

@@ -34,6 +34,7 @@ contract Challenge {
     mapping(uint256 => bytes32) assertedState;
     mapping(uint256 => bytes32) defendedState;
     address payable challenger;
+    // TODO: add the block here?
   }
   mapping(uint256 => Chal) challenges;
 

scripts/respond.js

+const fs = require("fs")
+const { deployed, getTrieNodesForCall } = require("../scripts/lib")
+
+async function main() {
+  let [c, m, mm] = await deployed()
+
+  const blockNumberN = parseInt(process.env.BLOCK)
+  const challengeId = parseInt(process.env.ID)
+
+  let step = (await c.getStepNumber(challengeId)).toNumber()
+  console.log("searching step", step, "in block", blockNumberN)
+
+  let thisTrie = JSON.parse(fs.readFileSync("/tmp/cannon/0_"+blockNumberN.toString()+"/checkpoint_"+step.toString()+".json"))
+  const root = thisTrie['root']
+  console.log("new root", root)
+
+  let ret = await c.ProposeState(challengeId, root)
+  let receipt = await ret.wait()
+  console.log(receipt)
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });
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