feat: initial Pezkuwi Apps rebrand from polkadot-apps

Rebranded terminology: - Polkadot → Pezkuwi - Kusama → Dicle - Westend → Zagros - Rococo → PezkuwiChain - Substrate → Bizinikiwi - parachain → teyrchain Custom logos with Kurdistan brand colors (#e6007a → #86e62a): - bizinikiwi-hexagon.svg - sora-bizinikiwi.svg - hezscanner.svg - heztreasury.svg - pezkuwiscan.svg - pezkuwistats.svg - pezkuwiassembly.svg - pezkuwiholic.svg
2026-04-24 20:27:57 +00:00 · 2026-01-07 13:05:27 +03:00
commit d21bfb1320
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+// Copyright 2017-2025 @pezkuwi/react-query authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { HeaderExtended } from '@pezkuwi/api-derive/types';
+import type { EraRewardPoints } from '@pezkuwi/types/interfaces';
+import type { AugmentedBlockHeader, BlockAuthors } from './types.js';
+
+import React, { useEffect, useState } from 'react';
+
+import { useApi, useCall } from '@pezkuwi/react-hooks';
+import { formatNumber } from '@pezkuwi/util';
+
+interface Props {
+  children: React.ReactNode;
+}
+
+const MAX_HEADERS = 75;
+
+const byAuthor: Record<string, string> = {};
+const eraPoints: Record<string, string> = {};
+
+const EMPTY_STATE: BlockAuthors = { byAuthor, eraPoints, lastBlockAuthors: [], lastHeaders: [] };
+
+export const BlockAuthorsCtx = React.createContext<BlockAuthors>(EMPTY_STATE);
+
+export function BlockAuthorsCtxRoot ({ children }: Props): React.ReactElement<Props> {
+  const { api, isApiReady } = useApi();
+  const queryPoints = useCall<EraRewardPoints>(isApiReady && api.derive.staking?.currentPoints);
+  const [state, setState] = useState<BlockAuthors>(EMPTY_STATE);
+
+  // No unsub, global context - destroyed on app close
+  useEffect((): void => {
+    api.isReady.then((): void => {
+      let lastHeaders: AugmentedBlockHeader[] = [];
+      let lastBlockAuthors: string[] = [];
+      let lastBlockNumber = '';
+
+      // subscribe to new headers
+      api.derive.chain.subscribeNewHeads(async (header: HeaderExtended): Promise<void> => {
+        if (header?.number) {
+          const timestamp = await ((await api.at(header.hash)).query.timestamp.now());
+
+          const lastHeader = Object.assign(header, { timestamp }) as AugmentedBlockHeader;
+          const blockNumber = lastHeader.number.unwrap();
+          let thisBlockAuthor = '';
+
+          if (lastHeader.author) {
+            thisBlockAuthor = lastHeader.author.toString();
+          }
+
+          const thisBlockNumber = formatNumber(blockNumber);
+
+          if (thisBlockAuthor) {
+            byAuthor[thisBlockAuthor] = thisBlockNumber;
+
+            if (thisBlockNumber !== lastBlockNumber) {
+              lastBlockNumber = thisBlockNumber;
+              lastBlockAuthors = [thisBlockAuthor];
+            } else {
+              lastBlockAuthors.push(thisBlockAuthor);
+            }
+          }
+
+          lastHeaders = lastHeaders
+            .filter((old, index) => index < MAX_HEADERS && old.number.unwrap().lt(blockNumber))
+            .reduce((next, header): AugmentedBlockHeader[] => {
+              next.push(header);
+
+              return next;
+            }, [lastHeader])
+            .sort((a, b) => b.number.unwrap().cmp(a.number.unwrap()));
+
+          setState({ byAuthor, eraPoints, lastBlockAuthors: lastBlockAuthors.slice(), lastBlockNumber, lastHeader, lastHeaders });
+        }
+      }).catch(console.error);
+    }).catch(console.error);
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  useEffect((): void => {
+    if (queryPoints) {
+      const entries = [...queryPoints.individual.entries()]
+        .map(([accountId, points]) => [accountId.toString(), formatNumber(points)]);
+      const current = Object.keys(eraPoints);
+
+      // we have an update, clear all previous
+      if (current.length !== entries.length) {
+        current.forEach((accountId): void => {
+          delete eraPoints[accountId];
+        });
+      }
+
+      entries.forEach(([accountId, points]): void => {
+        eraPoints[accountId] = points;
+      });
+    }
+  }, [queryPoints]);
+
+  return (
+    <BlockAuthorsCtx.Provider value={state}>
+      {children}
+    </BlockAuthorsCtx.Provider>
+  );
+}