Fix moonbeam chain spec customizations (#1957)

* fix moonbeam chain spec customizations

* fix logic

---------

Co-authored-by: Javier Viola <363911+pepoviola@users.noreply.github.com>

javascript/packages/orchestrator/src/chain-decorators/moonbeam.ts

@@ -126,37 +126,32 @@ async function addParaCustom(specPath: string, node: Node) {
   const chainSpec = readAndParseChainSpec(specPath);
   const runtimeConfig = getRuntimeConfig(chainSpec);
 
-  // parachainStaking
   if (!runtimeConfig?.parachainStaking) return;
 
   const { eth_account } = node.accounts;
 
-  const stakingBond = paraStakingBond || BigInt("1000000000000000000000");
-  const reservedBalance = BigInt("100000000000000000000");
+  const stakingBond = paraStakingBond || BigInt("2000000000000000000000000");
+  const reservedBalance = BigInt("100000000000000000000000");
 
   // Ensure collator account has enough balance to bond and add candidate
-  const node_index = runtimeConfig.balances.balances.findIndex(
-    (item: [string, BigInt]) => {
-      return item[0] === eth_account.address.toLowerCase();
-    },
+  const collatorBalance = runtimeConfig.balances.balances.find(
+    ([address]: [string, BigInt]) =>
+      address === eth_account.address.toLowerCase(),
   );
 
-  if (node_index > -1) runtimeConfig.balances.balances.splice(node_index, 1);
-
-  runtimeConfig.balances.balances.push([
-    eth_account.address,
-    stakingBond + reservedBalance,
-  ]);
-
-  const candidate_index = runtimeConfig.balances.balances.findIndex(
-    (item: [string, BigInt]) => {
-      return item[0] === eth_account.address.toLowerCase();
-    },
-  );
-
-  if (candidate_index > -1)
-    runtimeConfig.balances.balances.splice(candidate_index, 1);
+  const expectedBalance = stakingBond + reservedBalance;
+  if (collatorBalance) {
+    if (collatorBalance[1] < expectedBalance) {
+      collatorBalance[1] = expectedBalance;
+    }
+  } else {
+    runtimeConfig.balances.balances.push([
+      eth_account.address,
+      expectedBalance,
+    ]);
+  }
 
+  // Add collator account as candidate
   runtimeConfig.parachainStaking.candidates.push([
     eth_account.address,
     stakingBond,