361 lines
16 KiB
TypeScript
361 lines
16 KiB
TypeScript
"use client";
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import { useEffect, useState, useRef, useCallback } from "react";
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import { authFetch } from "@/lib/auth";
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import { useAuth } from "@/lib/auth";
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import Link from "next/link";
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import {
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AreaChart, Area, XAxis, YAxis, Tooltip, ResponsiveContainer, ReferenceLine, CartesianGrid
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} from "recharts";
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// ─── Types ───────────────────────────────────────────────────────
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interface TradeRow {
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agg_id: number;
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price: number;
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qty: number;
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time_ms: number;
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is_buyer_maker: number;
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}
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interface SummaryBar {
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time_ms: number;
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buy_vol: number;
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sell_vol: number;
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delta: number;
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total_vol: number;
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trade_count: number;
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vwap: number;
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max_qty: number;
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}
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type Symbol = "BTC" | "ETH";
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type Interval = "1m" | "5m" | "15m" | "1h";
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const INTERVALS: { label: string; value: Interval }[] = [
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{ label: "1m", value: "1m" },
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{ label: "5m", value: "5m" },
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{ label: "15m", value: "15m" },
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{ label: "1h", value: "1h" },
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];
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function bjtStr(ms: number, short = false) {
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const d = new Date(ms + 8 * 3600 * 1000);
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const hhmm = `${String(d.getUTCHours()).padStart(2,"0")}:${String(d.getUTCMinutes()).padStart(2,"0")}`;
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if (short) return hhmm;
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return `${d.getUTCFullYear()}-${String(d.getUTCMonth()+1).padStart(2,"0")}-${String(d.getUTCDate()).padStart(2,"0")} ${hhmm}`;
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}
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function timeStr(ms: number) {
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const d = new Date(ms + 8 * 3600 * 1000);
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return `${String(d.getUTCHours()).padStart(2,"0")}:${String(d.getUTCMinutes()).padStart(2,"0")}:${String(d.getUTCSeconds()).padStart(2,"0")}`;
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}
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// ─── 实时成交流 ──────────────────────────────────────────────────
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function LiveTrades({ symbol }: { symbol: Symbol }) {
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const [trades, setTrades] = useState<TradeRow[]>([]);
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const [loading, setLoading] = useState(true);
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const containerRef = useRef<HTMLDivElement>(null);
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const lastAggId = useRef<number>(0);
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useEffect(() => {
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let running = true;
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// 重置
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setTrades([]);
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setLoading(true);
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lastAggId.current = 0;
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const fetch = async () => {
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try {
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const res = await authFetch(`/api/trades/latest?symbol=${symbol}&limit=30`);
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if (!res.ok) return;
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const data = await res.json();
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if (!running) return;
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const incoming: TradeRow[] = (data.data || []).reverse(); // 改为时间升序
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setTrades(prev => {
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const existingIds = new Set(prev.map((t: TradeRow) => t.agg_id));
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const newOnes = incoming.filter((t: TradeRow) => !existingIds.has(t.agg_id));
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if (newOnes.length === 0) return prev;
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// 追加到末尾，保持时间升序，最多保留120条
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return [...prev, ...newOnes].slice(-120);
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});
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setLoading(false);
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} catch {}
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};
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fetch();
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const iv = setInterval(fetch, 1000);
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return () => { running = false; clearInterval(iv); };
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}, [symbol]);
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return (
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<div className="rounded-xl border border-slate-200 bg-white shadow-sm overflow-hidden flex flex-col">
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<div className="px-4 py-3 border-b border-slate-100">
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<div className="flex items-center justify-between">
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<h3 className="font-semibold text-slate-800 text-sm">实时成交 · {symbol}/USDT</h3>
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<div className="flex items-center gap-1.5">
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<span className="w-1.5 h-1.5 rounded-full bg-emerald-500 animate-pulse" />
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<span className="text-xs text-emerald-600">实时</span>
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</div>
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</div>
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<p className="text-xs text-slate-400 mt-0.5">
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<span className="text-emerald-600 font-medium">▲ 绿</span>=主动买（多方发动）
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<span className="text-red-500 font-medium">▼ 红</span>=主动卖（空方发动）
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</p>
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</div>
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<div ref={containerRef} className="overflow-y-auto flex-1" style={{ height: 420 }}>
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{loading ? (
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<div className="flex items-center justify-center h-24 text-slate-400 text-sm">加载中...</div>
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) : (
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<table className="w-full text-xs">
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<thead className="sticky top-0 bg-white z-10 shadow-sm">
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<tr className="bg-slate-50 border-b border-slate-100">
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<th className="text-left px-3 py-2 text-slate-500 font-medium">价格</th>
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<th className="text-right px-3 py-2 text-slate-500 font-medium">数量</th>
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<th className="text-right px-3 py-2 text-slate-500 font-medium">时间</th>
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</tr>
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</thead>
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<tbody>
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{trades.map(t => (
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<tr key={t.agg_id} className="border-b border-slate-50 hover:bg-slate-50">
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<td className={`px-3 py-1.5 font-mono font-semibold ${t.is_buyer_maker === 0 ? "text-emerald-600" : "text-red-500"}`}>
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{t.is_buyer_maker === 0 ? "▲" : "▼"} {t.price.toLocaleString("en-US", { minimumFractionDigits: 1, maximumFractionDigits: 1 })}
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</td>
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<td className="px-3 py-1.5 text-right font-mono text-slate-600">
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{t.qty >= 1000 ? `${(t.qty/1000).toFixed(2)}K` : t.qty.toFixed(symbol === "BTC" ? 4 : 3)}
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</td>
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<td className="px-3 py-1.5 text-right text-slate-400 font-mono">{timeStr(t.time_ms)}</td>
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</tr>
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))}
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</tbody>
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</table>
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)}
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</div>
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</div>
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);
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}
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// ─── 成交流分析（Delta图+买卖量柱状图）────────────────────────────
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function FlowAnalysis({ symbol }: { symbol: Symbol }) {
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const [interval, setInterval_] = useState<Interval>("5m");
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const [data, setData] = useState<SummaryBar[]>([]);
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const [loading, setLoading] = useState(true);
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const [dataAge, setDataAge] = useState(0); // 数据积累分钟数
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const fetchData = useCallback(async (showLoading = false) => {
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const end_ms = Date.now();
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const windowMs = { "1m": 3600000, "5m": 14400000, "15m": 43200000, "1h": 172800000 }[interval];
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const start_ms = end_ms - windowMs;
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try {
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const res = await authFetch(
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`/api/trades/summary?symbol=${symbol}&start_ms=${start_ms}&end_ms=${end_ms}&interval=${interval}`
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);
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if (!res.ok) return;
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const json = await res.json();
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const bars: SummaryBar[] = json.data || [];
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setData(bars);
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if (showLoading) setLoading(false);
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if (bars.length > 0) {
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const ageMs = end_ms - bars[0].time_ms;
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setDataAge(Math.round(ageMs / 60000));
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}
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} catch {}
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}, [symbol, interval]);
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useEffect(() => {
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setLoading(true);
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fetchData(true);
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const iv = setInterval(() => fetchData(false), 30000); // 定时刷新不触发loading
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return () => clearInterval(iv);
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}, [fetchData]);
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// Recharts数据格式
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const chartData = data.map(b => ({
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time: bjtStr(b.time_ms, true),
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buy: parseFloat(b.buy_vol.toFixed(2)),
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sell: parseFloat(b.sell_vol.toFixed(2)),
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delta: parseFloat(b.delta.toFixed(2)),
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count: b.trade_count,
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vwap: b.vwap,
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}));
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// 统计摘要
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const totalBuy = data.reduce((s, b) => s + b.buy_vol, 0);
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const totalSell = data.reduce((s, b) => s + b.sell_vol, 0);
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const totalDelta = totalBuy - totalSell;
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const buyPct = totalBuy + totalSell > 0 ? (totalBuy / (totalBuy + totalSell) * 100) : 50;
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return (
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<div className="rounded-xl border border-slate-200 bg-white shadow-sm overflow-hidden">
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<div className="px-4 py-3 border-b border-slate-100">
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<div className="flex items-center justify-between flex-wrap gap-2">
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<div>
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<h3 className="font-semibold text-slate-800 text-sm">{symbol} 成交流分析</h3>
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<p className="text-xs text-slate-400 mt-0.5">买卖 Delta · 主动买卖量分布</p>
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</div>
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<div className="flex gap-1">
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{INTERVALS.map(iv => (
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<button key={iv.value} onClick={() => setInterval_(iv.value)}
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className={`px-2 py-1 rounded border text-xs transition-colors ${interval === iv.value ? "bg-slate-800 text-white border-slate-800" : "border-slate-200 text-slate-500 hover:border-slate-400"}`}>
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{iv.label}
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</button>
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))}
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</div>
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</div>
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</div>
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{loading ? (
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<div className="flex items-center justify-center h-48 text-slate-400 text-sm">加载中...</div>
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) : data.length === 0 ? (
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<div className="flex flex-col items-center justify-center h-48 text-slate-400 text-sm gap-2">
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<span>📊</span>
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<span>暂无数据，正在积累中...</span>
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<span className="text-xs">采集器已启动，数据将持续写入</span>
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</div>
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) : (
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<div className="p-4 space-y-4">
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{/* 摘要卡片 */}
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<div className="space-y-2">
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<div className="flex items-center justify-between">
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<p className="text-xs text-slate-500 font-medium">
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统计时间窗口：
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<span className="font-semibold text-slate-700 ml-1">
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{interval === "1m" ? "过去1小时" : interval === "5m" ? "过去4小时" : interval === "15m" ? "过去12小时" : "过去48小时"}
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</span>
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（每{interval}聚合一根，每30秒刷新）
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</p>
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<p className="text-xs text-slate-400">单位：{symbol === "BTC" ? "BTC" : "ETH"}</p>
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</div>
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<div className="grid grid-cols-2 md:grid-cols-4 gap-2">
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<div className="bg-slate-50 rounded-lg p-3">
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<p className="text-xs text-slate-400">主动买量</p>
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<p className="font-mono font-semibold text-emerald-600 text-base mt-0.5">{totalBuy.toFixed(1)}</p>
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<p className="text-xs text-slate-400 mt-1">买方主动吃卖单</p>
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</div>
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<div className="bg-slate-50 rounded-lg p-3">
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<p className="text-xs text-slate-400">主动卖量</p>
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<p className="font-mono font-semibold text-red-500 text-base mt-0.5">{totalSell.toFixed(1)}</p>
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<p className="text-xs text-slate-400 mt-1">卖方主动砸买单</p>
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</div>
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<div className="bg-slate-50 rounded-lg p-3">
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<p className="text-xs text-slate-400">Delta（买-卖）</p>
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<p className={`font-mono font-semibold text-base mt-0.5 ${totalDelta >= 0 ? "text-emerald-600" : "text-red-500"}`}>
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{totalDelta >= 0 ? "+" : ""}{totalDelta.toFixed(1)}
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</p>
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<p className="text-xs text-slate-400 mt-1">{totalDelta >= 0 ? "多头占优 ↑" : "空头占优 ↓"}</p>
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</div>
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<div className="bg-slate-50 rounded-lg p-3">
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<p className="text-xs text-slate-400">买方占比</p>
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<p className={`font-mono font-semibold text-base mt-0.5 ${buyPct >= 50 ? "text-emerald-600" : "text-red-500"}`}>
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{buyPct.toFixed(1)}%
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</p>
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<p className="text-xs text-slate-400 mt-1">{buyPct >= 55 ? "强势买盘" : buyPct >= 45 ? "买卖均衡" : "强势卖盘"}</p>
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</div>
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</div>
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</div>
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{/* Delta折线图 */}
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<div>
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<p className="text-xs text-slate-500 mb-2 font-medium">买卖 Delta（正=多头占优，负=空头占优）</p>
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<ResponsiveContainer width="100%" height={160}>
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<AreaChart data={chartData} margin={{ top: 4, right: 8, bottom: 0, left: 8 }}>
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<CartesianGrid strokeDasharray="3 3" stroke="#f1f5f9" />
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<XAxis dataKey="time" tick={{ fill: "#94a3b8", fontSize: 10 }} tickLine={false} interval="preserveStartEnd" />
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<YAxis tick={{ fill: "#94a3b8", fontSize: 10 }} tickLine={false} axisLine={false} width={50} />
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<Tooltip
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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formatter={(v: any) => [`${Number(v).toFixed(2)}`, "Delta"]}
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contentStyle={{ background: "#fff", border: "1px solid #e2e8f0", borderRadius: 8, fontSize: 11 }}
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/>
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<ReferenceLine y={0} stroke="#94a3b8" strokeDasharray="4 2" />
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<Area type="monotone" dataKey="delta"
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stroke="#2563eb" fill="#eff6ff" strokeWidth={1.5}
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dot={false} connectNulls
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/>
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</AreaChart>
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</ResponsiveContainer>
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</div>
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{/* 买卖量柱状图 */}
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<div>
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<p className="text-xs text-slate-500 mb-2 font-medium">主动买量 vs 主动卖量</p>
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<ResponsiveContainer width="100%" height={160}>
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<AreaChart data={chartData} margin={{ top: 4, right: 8, bottom: 0, left: 8 }}>
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<CartesianGrid strokeDasharray="3 3" stroke="#f1f5f9" />
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<XAxis dataKey="time" tick={{ fill: "#94a3b8", fontSize: 10 }} tickLine={false} interval="preserveStartEnd" />
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<YAxis tick={{ fill: "#94a3b8", fontSize: 10 }} tickLine={false} axisLine={false} width={50} />
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<Tooltip
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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formatter={(v: any, name: any) => [`${Number(v).toFixed(2)}`, name === "buy" ? "主动买" : "主动卖"]}
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contentStyle={{ background: "#fff", border: "1px solid #e2e8f0", borderRadius: 8, fontSize: 11 }}
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/>
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<Area type="monotone" dataKey="buy" stroke="#16a34a" fill="#f0fdf4" strokeWidth={1.5} dot={false} connectNulls />
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<Area type="monotone" dataKey="sell" stroke="#dc2626" fill="#fef2f2" strokeWidth={1.5} dot={false} connectNulls />
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</AreaChart>
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</ResponsiveContainer>
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</div>
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<p className="text-xs text-slate-400 text-right">
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数据跨度约 {dataAge} 分钟 · {data.length} 根K · 每30秒刷新
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</p>
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</div>
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)}
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</div>
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);
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}
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// ─── 主页面 ──────────────────────────────────────────────────────
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export default function TradesPage() {
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const { isLoggedIn, loading } = useAuth();
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const [symbol, setSymbol] = useState<Symbol>("BTC");
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if (loading) return (
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<div className="flex items-center justify-center h-64 text-slate-400">加载中...</div>
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);
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if (!isLoggedIn) return (
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<div className="flex flex-col items-center justify-center h-64 gap-4">
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<div className="text-5xl">🔒</div>
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<p className="text-slate-600 font-medium">请先登录查看成交流数据</p>
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<div className="flex gap-2">
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<Link href="/login" className="bg-blue-600 text-white px-4 py-2 rounded-lg text-sm">登录</Link>
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<Link href="/register" className="border border-slate-300 text-slate-600 px-4 py-2 rounded-lg text-sm">注册</Link>
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</div>
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</div>
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);
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return (
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<div className="space-y-5">
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{/* 标题+币种切换 */}
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<div className="flex items-center justify-between flex-wrap gap-2">
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<div>
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<h1 className="text-xl font-bold text-slate-900">成交流分析</h1>
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<p className="text-slate-500 text-xs mt-0.5">实时成交记录 + 买卖 Delta 分析</p>
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</div>
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<div className="flex gap-1.5">
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{(["BTC", "ETH"] as Symbol[]).map(s => (
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<button key={s} onClick={() => setSymbol(s)}
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className={`px-4 py-1.5 rounded-lg border text-sm font-medium transition-colors ${symbol === s ? "bg-blue-600 text-white border-blue-600" : "border-slate-200 text-slate-600 hover:border-blue-400"}`}>
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{s}
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</button>
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))}
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</div>
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</div>
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{/* 实时成交 + 分析图 并排 */}
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<div className="grid grid-cols-1 lg:grid-cols-2 gap-4">
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<LiveTrades symbol={symbol} />
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<FlowAnalysis symbol={symbol} />
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</div>
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{/* 说明 */}
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<div className="rounded-lg border border-blue-100 bg-blue-50 px-4 py-3 text-xs text-slate-600 space-y-1">
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<p><span className="text-blue-600 font-medium">读图方法：</span>Delta持续为正（买多卖少）说明多方在积累仓位，是潜在上涨信号；Delta突然大幅转负，说明空方在砸盘。</p>
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<p><span className="text-blue-600 font-medium">复盘思路：</span>找K线大涨大跌的时间点，在此页查看涨跌前15-30分钟的Delta走势，寻找规律性前兆。</p>
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</div>
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</div>
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);
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}
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