First iteration at showing incoming blocks

src/special/BlockRecord.tsx

@@ -0,0 +1,55 @@
+import { ethers } from "ethers";
+import React from "react";
+import BlockLink from "../components/BlockLink";
+import { ExtendedBlock } from "../useErigonHooks";
+
+const ELASTICITY_MULTIPLIER = 2;
+
+type BlockRecordProps = {
+  block: ExtendedBlock;
+};
+
+const BlockRecord: React.FC<BlockRecordProps> = ({ block }) => {
+  const gasTarget = block.gasLimit.div(ELASTICITY_MULTIPLIER);
+  const burntFees =
+    block?.baseFeePerGas && block.baseFeePerGas.mul(block.gasUsed);
+  const netFeeReward = block && block.feeReward.sub(burntFees ?? 0);
+  const totalReward = block.blockReward.add(netFeeReward ?? 0);
+
+  return (
+    <div className="grid grid-cols-8 px-3 py-2">
+      <div>
+        <BlockLink blockTag={block.number} />
+      </div>
+      <div className="text-right">{block.baseFeePerGas?.toString()} wei</div>
+      <div
+        className={`text-right ${
+          block.gasUsed.gt(gasTarget)
+            ? "text-green-500"
+            : block.gasUsed.lt(gasTarget)
+            ? "text-red-500"
+            : ""
+        }`}
+      >
+        {ethers.utils.commify(block.gasUsed.toString())}
+      </div>
+      <div className="text-right">
+        {ethers.utils.commify(
+          ethers.utils.formatUnits(
+            block.gasUsed.mul(block.baseFeePerGas!).toString(),
+            9
+          )
+        )}{" "}
+        Gwei
+      </div>
+      <div className="text-right">
+        {ethers.utils.commify(gasTarget.toString())}
+      </div>
+      <div className="text-right col-span-2">
+        {ethers.utils.commify(ethers.utils.formatEther(totalReward))} Ether
+      </div>
+    </div>
+  );
+};
+
+export default React.memo(BlockRecord);

src/special/Blocks.tsx

@@ -0,0 +1,65 @@
+import React, { useState, useEffect, useContext } from "react";
+import { ethers } from "ethers";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faBurn, faGasPump } from "@fortawesome/free-solid-svg-icons";
+import BlockRecord from "./BlockRecord";
+import { ExtendedBlock, readBlock } from "../useErigonHooks";
+import { RuntimeContext } from "../useRuntime";
+
+const MAX_BLOCK_HISTORY = 10;
+
+type BlocksProps = {
+  latestBlock: ethers.providers.Block;
+};
+
+const Blocks: React.FC<BlocksProps> = ({ latestBlock }) => {
+  const { provider } = useContext(RuntimeContext);
+  const [blocks, setBlock] = useState<ExtendedBlock[]>([]);
+
+  useEffect(() => {
+    if (!provider) {
+      return;
+    }
+
+    const _readBlock = async () => {
+      const extBlock = await readBlock(provider, latestBlock.number.toString());
+      setBlock((_blocks) => {
+        if (_blocks.length > 0 && latestBlock.number === _blocks[0].number) {
+          return _blocks;
+        }
+        return [extBlock, ..._blocks].slice(0, MAX_BLOCK_HISTORY);
+      });
+    };
+    _readBlock();
+  }, [provider, latestBlock]);
+
+  return (
+    <div className="w-full h-full">
+      <div className="m-10 divide-y-2">
+        <div className="grid grid-cols-8 px-3 py-2">
+          <div>Block</div>
+          <div className="text-right">Base fee</div>
+          <div className="text-right flex space-x-1 justify-end items-baseline">
+            <span className="text-gray-500">
+              <FontAwesomeIcon icon={faGasPump} />
+            </span>
+            <span>Gas used</span>
+          </div>
+          <div className="text-right flex space-x-1 justify-end items-baseline">
+            <span className="text-orange-500">
+              <FontAwesomeIcon icon={faBurn} />
+            </span>
+            <span>Burnt fees</span>
+          </div>
+          <div className="text-right">Gas target</div>
+          <div className="text-right col-span-2">Rewards</div>
+        </div>
+        {blocks.map((b) => (
+          <BlockRecord key={b.hash} block={b} />
+        ))}
+      </div>
+    </div>
+  );
+};
+
+export default React.memo(Blocks);

src/special/London.tsx

@@ -2,6 +2,7 @@ import React, { useContext } from "react";
 import { useLatestBlock } from "../useLatestBlock";
 import { RuntimeContext } from "../useRuntime";
 import Countdown from "./Countdown";
+import Blocks from "./Blocks";
 
 const londonBlockNumber: { [chainId: string]: number } = {
   "1": 12965000,
@@ -30,7 +31,7 @@ const London: React.FC = () => {
     );
   }
 
-  return <div className="w-full h-full"></div>;
+  return <Blocks latestBlock={block} />;
 };
 
 export default React.memo(London);

src/useErigonHooks.ts

@@ -13,6 +13,49 @@ export interface ExtendedBlock extends ethers.providers.Block {
   totalDifficulty: BigNumber;
 }
 
+export const readBlock = async (
+  provider: ethers.providers.JsonRpcProvider,
+  blockNumberOrHash: string
+) => {
+  let blockPromise: Promise<any>;
+  if (ethers.utils.isHexString(blockNumberOrHash, 32)) {
+    blockPromise = provider.send("eth_getBlockByHash", [
+      blockNumberOrHash,
+      false,
+    ]);
+  } else {
+    blockPromise = provider.send("eth_getBlockByNumber", [
+      blockNumberOrHash,
+      false,
+    ]);
+  }
+  const [_rawBlock, _rawIssuance, _rawReceipts] = await Promise.all([
+    blockPromise,
+    provider.send("erigon_issuance", [blockNumberOrHash]),
+    provider.send("eth_getBlockReceipts", [blockNumberOrHash]),
+  ]);
+  const receipts = (_rawReceipts as any[]).map((r) =>
+    provider.formatter.receipt(r)
+  );
+  const fees = receipts.reduce(
+    (acc, r) => acc.add(r.effectiveGasPrice.mul(r.gasUsed)),
+    BigNumber.from(0)
+  );
+
+  const _block = provider.formatter.block(_rawBlock);
+  const extBlock: ExtendedBlock = {
+    blockReward: provider.formatter.bigNumber(_rawIssuance.blockReward ?? 0),
+    unclesReward: provider.formatter.bigNumber(_rawIssuance.uncleReward ?? 0),
+    feeReward: fees,
+    size: provider.formatter.number(_rawBlock.size),
+    sha3Uncles: _rawBlock.sha3Uncles,
+    stateRoot: _rawBlock.stateRoot,
+    totalDifficulty: provider.formatter.bigNumber(_rawBlock.totalDifficulty),
+    ..._block,
+  };
+  return extBlock;
+};
+
 export const useBlockData = (
   provider: ethers.providers.JsonRpcProvider | undefined,
   blockNumberOrHash: string
@@ -23,52 +66,11 @@ export const useBlockData = (
       return;
     }
 
-    const readBlock = async () => {
+    const _readBlock = async () => {
-      let blockPromise: Promise<any>;
+      const extBlock = await readBlock(provider, blockNumberOrHash);
-      if (ethers.utils.isHexString(blockNumberOrHash, 32)) {
-        blockPromise = provider.send("eth_getBlockByHash", [
-          blockNumberOrHash,
-          false,
-        ]);
-      } else {
-        blockPromise = provider.send("eth_getBlockByNumber", [
-          blockNumberOrHash,
-          false,
-        ]);
-      }
-      const [_rawBlock, _rawIssuance, _rawReceipts] = await Promise.all([
-        blockPromise,
-        provider.send("erigon_issuance", [blockNumberOrHash]),
-        provider.send("eth_getBlockReceipts", [blockNumberOrHash]),
-      ]);
-      const receipts = (_rawReceipts as any[]).map((r) =>
-        provider.formatter.receipt(r)
-      );
-      const fees = receipts.reduce(
-        (acc, r) => acc.add(r.effectiveGasPrice.mul(r.gasUsed)),
-        BigNumber.from(0)
-      );
-
-      const _block = provider.formatter.block(_rawBlock);
-      const extBlock: ExtendedBlock = {
-        blockReward: provider.formatter.bigNumber(
-          _rawIssuance.blockReward ?? 0
-        ),
-        unclesReward: provider.formatter.bigNumber(
-          _rawIssuance.uncleReward ?? 0
-        ),
-        feeReward: fees,
-        size: provider.formatter.number(_rawBlock.size),
-        sha3Uncles: _rawBlock.sha3Uncles,
-        stateRoot: _rawBlock.stateRoot,
-        totalDifficulty: provider.formatter.bigNumber(
-          _rawBlock.totalDifficulty
-        ),
-        ..._block,
-      };
       setBlock(extBlock);
     };
-    readBlock();
+    _readBlock();
   }, [provider, blockNumberOrHash]);
 
   return block;