add GetGasStabilityPoolBalance as prototype contract function

e2e/e2etests/test_precompiles_prototype.go

@@ -11,19 +11,23 @@ import (
 func TestPrecompilesRegular(r *runner.E2ERunner, args []string) {
 	require.Len(r, args, 0, "No arguments expected")
 
-	caller, err := prototype.NewIPrototypeCaller(prototype.ContractAddress, r.ZEVMClient)
-	require.NoError(r, err, "Failed to create precompiled contract caller")
+	iPrototype, err := prototype.NewIPrototype(prototype.ContractAddress, r.ZEVMClient)
+	require.NoError(r, err, "Failed to create prototype contract caller")
 
-	res, err := caller.Bech32ify(nil, "zeta", common.HexToAddress("0xB9Dbc229Bf588A613C00BEE8e662727AB8121cfE"))
+	res, err := iPrototype.Bech32ify(nil, "zeta", common.HexToAddress("0xB9Dbc229Bf588A613C00BEE8e662727AB8121cfE"))
 	require.NoError(r, err, "Error calling Bech32ify")
 	require.Equal(r, "zeta1h8duy2dltz9xz0qqhm5wvcnj02upy887fyn43u", res, "Failed to validate Bech32ify result")
 
-	addr, err := caller.Bech32ToHexAddr(nil, "zeta1h8duy2dltz9xz0qqhm5wvcnj02upy887fyn43u")
+	addr, err := iPrototype.Bech32ToHexAddr(nil, "zeta1h8duy2dltz9xz0qqhm5wvcnj02upy887fyn43u")
 	require.NoError(r, err, "Error calling Bech32ToHexAddr")
 	require.Equal(
 		r,
 		"0xB9Dbc229Bf588A613C00BEE8e662727AB8121cfE",
 		addr.String(),
 		"Failed to validate Bech32ToHexAddr result",
 	)
+
+	balance, err := iPrototype.GetGasStabilityPoolBalance(nil, int64(101))
+	require.NoError(r, err, err.Error())
+	require.NotNil(r, balance, "GetGasStabilityPoolBalance returned balance is nil")
 }

precompiles/precompiles.go

@@ -13,6 +13,9 @@ import (
 	"github.com/zeta-chain/zetacore/x/fungible/keeper"
 )
 
+// EnabledStatefulContracts contains the list of all enabled stateful precompiles.
+// This is useful for listing and reading from other packages, such as BlockedAddrs() function.
+// Setting to false a contract here will disable it, not being included in the blockchain.
 var EnabledStatefulContracts = map[common.Address]bool{
 	prototype.ContractAddress: true,
 }
@@ -29,7 +32,7 @@ func StatefulContracts(
 	// Define the regular contract function.
 	if EnabledStatefulContracts[prototype.ContractAddress] {
 		regularContract := func(_ sdktypes.Context, _ ethparams.Rules) vm.PrecompiledContract {
-			return prototype.NewRegularContract(fungibleKeeper, cdc, gasConfig)
+			return prototype.NewIPrototypeContract(fungibleKeeper, cdc, gasConfig)
 		}
 
 		// Append the regular contract to the precompiledContracts slice.

precompiles/prototype/IPrototype.abi

@@ -45,25 +45,20 @@
   {
     "inputs": [
       {
-        "internalType": "string",
-        "name": "method",
-        "type": "string"
-      },
-      {
-        "internalType": "address",
-        "name": "addr",
-        "type": "address"
+        "internalType": "int64",
+        "name": "chainID",
+        "type": "int64"
       }
     ],
-    "name": "regularCall",
+    "name": "getGasStabilityPoolBalance",
     "outputs": [
       {
         "internalType": "uint256",
         "name": "result",
         "type": "uint256"
       }
     ],
-    "stateMutability": "nonpayable",
+    "stateMutability": "view",
     "type": "function"
   }
 ]

precompiles/prototype/IPrototype.json

@@ -46,25 +46,20 @@
     {
       "inputs": [
         {
-          "internalType": "string",
-          "name": "method",
-          "type": "string"
-        },
-        {
-          "internalType": "address",
-          "name": "addr",
-          "type": "address"
+          "internalType": "int64",
+          "name": "chainID",
+          "type": "int64"
         }
       ],
-      "name": "regularCall",
+      "name": "getGasStabilityPoolBalance",
       "outputs": [
         {
           "internalType": "uint256",
           "name": "result",
           "type": "uint256"
         }
       ],
-      "stateMutability": "nonpayable",
+      "stateMutability": "view",
       "type": "function"
     }
   ]

precompiles/prototype/IPrototype.sol

@@ -26,12 +26,10 @@ interface IPrototype {
         address addr
     ) external view returns (string memory bech32);
 
-    /// @dev Function to verify calling regular contact through precompiled contact
-    /// @param method to call, e.g. bar.
-    /// @param addr of deployed regular contract.
+    /// @dev returns the balance of the gas stability pool
+    /// @param chainID to query gas.
     /// @return result of the call.
-    function regularCall(
-        string memory method,
-        address addr
-    ) external returns (uint256 result);
+    function getGasStabilityPoolBalance(
+        int64 chainID
+    ) external view returns (uint256 result);
 }