Add price feed ids table

Author: cprussin

components/CopyAddress.tsx

@@ -1,18 +1,27 @@
 import CopyButton from "./CopyButton";
+import clsx from "clsx";
 
-const CopyAddress = ({ address, url }: { address: string; url?: string }) => {
+type Props = {
+  address: string;
+  url?: string;
+  alwaysTruncate?: boolean | undefined;
+};
+
+const CopyAddress = ({ address, url, alwaysTruncate }: Props) => {
   return (
     <CopyButton value={address} className="-ml-1">
-      <span className="mr-2 hidden lg:block">
-        {url ? (
-          <a href={url} target="_blank" rel="noopener noreferrer">
-            {address}
-          </a>
-        ) : (
-          address
-        )}
-      </span>
-      <span className="mr-2 lg:hidden">
+      {!alwaysTruncate && (
+        <span className="mr-2 hidden lg:block">
+          {url ? (
+            <a href={url} target="_blank" rel="noopener noreferrer">
+              {address}
+            </a>
+          ) : (
+            address
+          )}
+        </span>
+      )}
+      <span className={clsx("mr-2", { "lg:hidden": !alwaysTruncate })}>
         {url ? (
           <a href={url} target="_blank" rel="noopener noreferrer">
             {address.slice(0, 6) + "..." + address.slice(-6)}

components/PriceFeedIds.tsx

@@ -0,0 +1,197 @@
+import {
+  useState,
+  useEffect,
+  useRef,
+  useCallback,
+  ChangeEvent,
+  useMemo,
+} from "react";
+import { z } from "zod";
+import { getPriceFeedAccountForProgram } from "@pythnetwork/pyth-solana-receiver";
+import CopyAddress from "./CopyAddress";
+import { Callout, Table, Th, Td, Tr } from "nextra/components";
+
+export const PriceFeedIds = () => {
+  const isLoading = useRef(false);
+  const [state, setState] = useState<State>(State.NotLoaded());
+
+  useEffect(() => {
+    if (!isLoading.current) {
+      setState(State.Loading());
+      isLoading.current = true;
+      getFeeds()
+        .then((feeds) => setState(State.Loaded(feeds)))
+        .catch((error) => setState(State.Error(error)));
+    }
+  }, []);
+
+  switch (state.type) {
+    case StateType.Loading:
+    case StateType.NotLoaded: {
+      return <div className="w-full text-center my-10">Loading...</div>;
+    }
+    case StateType.Error: {
+      console.error(state.error);
+      return <Callout type="error">{errorToString(state.error)}</Callout>;
+    }
+    case StateType.Loaded: {
+      return <LoadedResults feeds={state.feeds} />;
+    }
+  }
+};
+
+const LoadedResults = ({
+  feeds,
+}: {
+  feeds: Awaited<ReturnType<typeof getFeeds>>;
+}) => {
+  const [search, setSearch] = useState("");
+  const updateSearch = useCallback((event: ChangeEvent<HTMLInputElement>) => {
+    setSearch(event.target.value);
+  }, []);
+  const filteredFeeds = useMemo(
+    () =>
+      feeds.filter((feed) =>
+        feed.symbol.toLowerCase().includes(search.toLowerCase())
+      ),
+    [feeds, search]
+  );
+
+  return (
+    <div className="mt-4">
+      <input
+        type="text"
+        placeholder="Search"
+        className="w-full"
+        value={search}
+        onChange={updateSearch}
+      />
+      {filteredFeeds.length === 0 ? (
+        <Callout type="info">No results for {search}</Callout>
+      ) : (
+        <div className="mt-4 max-h-[1200px] overflow-auto">
+          <Table>
+            <thead>
+              <tr>
+                <Th className="!font-semibold !text-right">Symbol</Th>
+                <Th>Stable Price Feed ID</Th>
+                <Th>Beta Price Feed ID</Th>
+                <Th>Solana Price Feed Account</Th>
+              </tr>
+            </thead>
+            <tbody>
+              {filteredFeeds.map(
+                ({
+                  symbol,
+                  betaFeedId,
+                  solanaPriceFeedAccount,
+                  stableFeedId,
+                }) => (
+                  <Tr key={symbol}>
+                    <Td className="font-semibold text-right !text-xs">
+                      {symbol}
+                    </Td>
+                    <Td>
+                      {stableFeedId && (
+                        <CopyAddress alwaysTruncate address={stableFeedId} />
+                      )}
+                    </Td>
+                    <Td>
+                      {betaFeedId && (
+                        <CopyAddress alwaysTruncate address={betaFeedId} />
+                      )}
+                    </Td>
+                    <Td>
+                      {solanaPriceFeedAccount && (
+                        <CopyAddress
+                          alwaysTruncate
+                          address={solanaPriceFeedAccount}
+                        />
+                      )}
+                    </Td>
+                  </Tr>
+                )
+              )}
+            </tbody>
+          </Table>
+        </div>
+      )}
+    </div>
+  );
+};
+
+const errorToString = (error: unknown) => {
+  if (error instanceof Error) {
+    return error.message;
+  } else if (typeof error === "string") {
+    return error;
+  } else {
+    return "An error occurred, please try again";
+  }
+};
+
+enum StateType {
+  NotLoaded,
+  Loading,
+  Loaded,
+  Error,
+}
+
+const State = {
+  NotLoaded: () => ({ type: StateType.NotLoaded as const }),
+  Loading: () => ({ type: StateType.Loading as const }),
+  Loaded: (feeds: Awaited<ReturnType<typeof getFeeds>>) => ({
+    type: StateType.Loaded as const,
+    feeds,
+  }),
+  Error: (error: unknown) => ({ type: StateType.Error as const, error }),
+};
+type State = ReturnType<typeof State[keyof typeof State]>;
+
+const getFeeds = async () => {
+  const [pythnet, pythtest] = await Promise.all([
+    getFeedsFromHermes("https://hermes.pyth.network"),
+    getFeedsFromHermes("https://hermes-beta.pyth.network"),
+  ]);
+
+  const feeds = new Map<
+    string,
+    {
+      stableFeedId?: string;
+      betaFeedId?: string;
+      solanaPriceFeedAccount?: string;
+    }
+  >();
+
+  for (const feed of pythnet) {
+    feeds.set(feed.attributes.symbol, {
+      stableFeedId: `0x${feed.id}`,
+      solanaPriceFeedAccount: getPriceFeedAccountForProgram(
+        0,
+        Buffer.from(feed.id, "hex")
+      ).toBase58(),
+    });
+  }
+  for (const feed of pythtest) {
+    feeds.set(feed.attributes.symbol, {
+      ...feeds.get(feed.attributes.symbol),
+      betaFeedId: `0x${feed.id}`,
+    });
+  }
+
+  return [...feeds.entries()]
+    .toSorted((a, b) => a[0].localeCompare(b[0]))
+    .map(([symbol, attrs]) => ({ symbol, ...attrs }));
+};
+
+const getFeedsFromHermes = async (hermesUrl: string) => {
+  const result = await fetch(new URL("/v2/price_feeds", hermesUrl));
+  return hermesSchema.parse(await result.json());
+};
+
+const hermesSchema = z.array(
+  z.object({
+    id: z.string(),
+    attributes: z.object({ symbol: z.string() }),
+  })
+);