feat: price chart

packages/app/src/Hooks/useRates.tsx

@@ -1,4 +1,4 @@
-import { bech32ToHex } from "@snort/shared";
+import { bech32ToHex, removeUndefined, unixNow } from "@snort/shared";
 import { EventKind, RequestBuilder } from "@snort/system";
 import { useRequestBuilder } from "@snort/system-react";
 import { useMemo } from "react";
@@ -33,3 +33,30 @@ export function useRates(symbol: string, leaveOpen = true) {
     hight: Number(tag[5]),
   };
 }
+
+export function useRateHistory(symbol: string, size: number, leaveOpen = false) {
+  const sub = useMemo(() => {
+    const rb = new RequestBuilder(`rates:${symbol}:history:${size}`);
+    rb.withOptions({ leaveOpen });
+    rb.withFilter()
+      .kinds([1009 as EventKind])
+      .authors([bech32ToHex(SnortPubkey)])
+      .tag("d", [symbol])
+      .since(unixNow() - size);
+    return rb;
+  }, [symbol, size]);
+
+  const feed = useRequestBuilder(sub);
+
+  return removeUndefined(feed.map(a => {
+    const tag = a.tags.find(a => a[0] === "d" && a[1] === symbol);
+    if (!tag) return undefined;
+    return {
+      time: a?.created_at,
+      ask: Number(tag[2]),
+      bid: Number(tag[3]),
+      low: Number(tag[4]),
+      hight: Number(tag[5]),
+    };
+  }));
+}

packages/app/src/Pages/wallet/index.tsx

@@ -1,3 +1,4 @@
+/* eslint-disable max-lines */
 import classNames from "classnames";
 import { useEffect, useState } from "react";
 import { FormattedMessage, FormattedNumber, useIntl } from "react-intl";
@@ -261,4 +262,4 @@ export default function WalletPage(props: { showHistory: boolean }) {
       {walletInfo()}
     </div>
   );
-}
+}

packages/app/src/Pages/wallet/price-chart.tsx

@@ -0,0 +1,74 @@
+import { useMemo } from "react";
+import { FormattedNumber } from "react-intl";
+import { Line, LineChart, ResponsiveContainer, Tooltip, XAxis, YAxis } from "recharts";
+
+import { useRateHistory } from "@/Hooks/useRates";
+
+export default function PriceChart({ interval, range }: { interval: number, range: number }) {
+  const history = useRateHistory("BTCUSD", range, true);
+
+  const reduced = useMemo(() => {
+    let min = Number.MAX_SAFE_INTEGER, max = 0;
+    let minAsk = Number.MAX_SAFE_INTEGER, maxAsk = 0;
+    const ret = history.reduce((acc, v) => {
+      const key = v.time - (v.time % interval);
+      acc[key] ??= { time: key, ask: 0, bid: 0 };
+      acc[key].ask = v.ask;
+      acc[key].bid = v.bid;
+      if (key < min) {
+        min = key
+      }
+      if (key > max) {
+        max = key;
+      }
+      if (v.ask > maxAsk) {
+        maxAsk = v.ask;
+      }
+      if (v.ask < minAsk) {
+        minAsk = v.ask;
+      }
+      return acc;
+    }, {} as Record<string, { time: number, ask: number | null, bid: number | null }>);
+
+    for (let x = min; x < max; x += interval) {
+      ret[x] ??= { time: x, ask: null, bid: null };
+    }
+    return { data: ret, min, max, minAsk, maxAsk };
+  }, [history, interval]);
+
+  const lastRate = useMemo(() => {
+    return history.reduce((acc, v) => {
+      if (acc.time < v.time) {
+        acc = v;
+      }
+      return acc;
+    }, { time: 0, ask: 0, bid: 0 } as { time: number, ask: number, bid: number })
+  }, [history]);
+
+  return <>
+    <h3 className="text-right">
+      <FormattedNumber value={lastRate.ask} style="currency" currency="USD" />
+    </h3>
+    <ResponsiveContainer height={250}>
+      <LineChart data={Object.values(reduced.data)}>
+        <XAxis
+          dataKey="time"
+          type="number"
+          scale="time"
+          domain={["dataMin", "dataMax"]}
+          hide={true}
+        />
+        <YAxis
+          dataKey="ask"
+          type="number"
+          scale="auto"
+          domain={["dataMin - 100", "dataMax + 100"]}
+          tickFormatter={v => Number(v).toLocaleString()}
+          hide={true}
+        />
+        <Tooltip content={() => ""} />
+        <Line dataKey="ask" type="monotone" dot={false} connectNulls={false} stroke="var(--primary-bg)" />
+      </LineChart>
+    </ResponsiveContainer>
+  </>;
+}

packages/system/src/connection.ts

@@ -380,12 +380,16 @@ export class Connection extends EventEmitter<ConnectionEvents> {
       } else if (cmd[0] === "SYNC") {
         const [_, id, eventSet, ...filters] = cmd;
         const lastResortSync = () => {
-          const latest = eventSet.reduce((acc, v) => (acc = v.created_at > acc ? v.created_at : acc), 0);
-          const newFilters = filters.map(a => ({
-            ...a,
-            since: latest,
-          }));
-          this.queueReq(["REQ", id, ...newFilters], item.cb);
+          if (filters.some(a => a.since || a.until)) {
+            this.queueReq(["REQ", id, ...filters], item.cb);
+          } else {
+            const latest = eventSet.reduce((acc, v) => (acc = v.created_at > acc ? v.created_at : acc), 0);
+            const newFilters = filters.map(a => ({
+              ...a,
+              since: latest,
+            }));
+            this.queueReq(["REQ", id, ...newFilters], item.cb);
+          }
         };
         if (this.Info?.software?.includes("strfry")) {
           const neg = new NegentropyFlow(id, this, eventSet, filters);