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Edit file: /home/benbot/public_html/monitor/risk.html

<!doctype html>
<html lang="ko">
  <head>
    <meta charset="utf-8" />
    <meta
      name="viewport"
      content="width=device-width,initial-scale=1,maximum-scale=1"
    />
    <title>Coinben Bot — Risk Bot</title>
    <link rel="stylesheet" href="css/core.css" />
    <link rel="stylesheet" href="css/risk.css" />
  </head>
  <body>
    <div class="container">
      <h1>
        위험 감지 신호 <span class="muted">(Market-maker 틀기 집중)</span>
        <span id="riskBadge" class="badge">Risk: L0 (정상)</span>
      </h1>

<div class="toolbar">
        <div>
          <label>Symbol</label>
          <input id="sym" type="text" value="BTCUSDT" />
        </div>
        <div>
          <label>TopN</label>
          <select id="topn">
            <option>20</option>
            <option selected>50</option>
            <option>100</option>
          </select>
        </div>
        <div>
          <label>주기</label>
          <select id="interval">
            <option value="2000">2s</option>
            <option value="3000" selected>3s</option>
            <option value="5000">5s</option>
            <option value="10000">10s</option>
          </select>
        </div>
        <button id="startBtn">Start</button>
        <button id="stopBtn">Stop</button>
        <span id="status" class="badge">워밍업</span>
      </div>

<div class="kpi-grid">
        <div class="kpi-card">
          <div class="kpi-head">Depth Imbalance (TopN)</div>
          <div id="kpiImb" class="kpi-val">-</div>
        </div>
        <div class="kpi-card">
          <div class="kpi-head">Depth Collapse (5s)</div>
          <div id="kpiCollapse" class="kpi-val">-</div>
        </div>
        <div class="kpi-card">
          <div class="kpi-head">Price Divergence (Fut vs Spot)</div>
          <div id="kpiDiv" class="kpi-val">-</div>
        </div>
        <div class="kpi-card">
          <div class="kpi-head">Spread (bps)</div>
          <div id="kpiSpread" class="kpi-val">-</div>
        </div>
        <div class="kpi-card">
          <div class="kpi-head">Bid%</div>
          <div id="kpiBidPct" class="kpi-val">-</div>
        </div>
        <div class="kpi-card">
          <div class="kpi-head">Ask%</div>
          <div id="kpiAskPct" class="kpi-val">-</div>
        </div>
      </div>

<script>
      /* =========================================================================
   Coinben Risk Bot — 작동 보장 버전
   - [MOD] 자동 시작 (로드 후 곧바로 Start)
   - [MOD] 주기 기본 3s
   - [MOD] 네트워크/429/JSON 예외 세분화 및 재시도(지수 백오프)
   - Bitget 공개 API만 사용 (CORS 허용 엔드포인트)
   ======================================================================== */

/* --------------------------- 공통 유틸 --------------------------- */
      const $ = (id) => document.getElementById(id);
      const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
      const nf2 = new Intl.NumberFormat("en-US", { maximumFractionDigits: 2 });
      const nf0 = new Intl.NumberFormat("en-US", { maximumFractionDigits: 0 });
      const pct2 = (x) =>
        x == null || !isFinite(x) ? "-" : nf2.format(x) + "%";
      const bps2 = (x) => (x == null || !isFinite(x) ? "-" : nf2.format(x));
      const x2 = (x) => (x == null || !isFinite(x) ? "-" : nf2.format(x) + "x");

/* --------------------------- Bitget API --------------------------- */
      const PRODUCT_TYPE = "USDT-FUTURES"; // 대문자 v2 규격

async function fetchJSON(url, attempt = 1) {
        try {
          const res = await fetch(url, { cache: "no-store" });
          if (!res.ok) {
            // 429/5xx 등은 재시도
            if (
              (res.status === 429 || (res.status >= 500 && res.status < 600)) &&
              attempt < 4
            ) {
              const backoff = 400 * Math.pow(2, attempt - 1);
              await sleep(backoff);
              return fetchJSON(url, attempt + 1);
            }
            throw new Error("HTTP " + res.status);
          }
          return res.json();
        } catch (e) {
          if (attempt < 4) {
            const backoff = 400 * Math.pow(2, attempt - 1);
            await sleep(backoff);
            return fetchJSON(url, attempt + 1);
          }
          throw e;
        }
      }

async function getMergeDepth(symbol, topN) {
        const u = new URL(
          "https://api.bitget.com/api/v2/mix/market/merge-depth",
        );
        u.searchParams.set("productType", PRODUCT_TYPE);
        u.searchParams.set("symbol", symbol);
        u.searchParams.set("precision", "scale0");
        u.searchParams.set("limit", String(topN));
        return fetchJSON(u.toString());
      }

async function getFuturesTickerMap() {
        const u = new URL("https://api.bitget.com/api/v2/mix/market/tickers");
        u.searchParams.set("productType", PRODUCT_TYPE);
        u.searchParams.set("_", Date.now());
        const j = await fetchJSON(u.toString());
        const m = new Map();
        for (const t of j?.data || []) {
          const sym = String(t.symbol || t.instId || "").toUpperCase();
          const px = Number(
            t.lastPr ?? t.last ?? t.close ?? t.lastPrice ?? t.closePrice,
          );
          if (sym && isFinite(px)) m.set(sym, px);
        }
        return m;
      }

async function getSpotTickerMap() {
        const u = new URL("https://api.bitget.com/api/v2/spot/market/tickers");
        u.searchParams.set("_", Date.now());
        const j = await fetchJSON(u.toString());
        const m = new Map();
        for (const t of j?.data || []) {
          const sym = String(t.symbol || t.instId || "").toUpperCase();
          const px = Number(
            t.lastPr ?? t.last ?? t.close ?? t.lastPrice ?? t.closePrice,
          );
          if (sym && isFinite(px)) m.set(sym, px);
        }
        return m;
      }

/* --------------------------- 계산 로직 --------------------------- */
      function sumNotional(levels, topN) {
        let s = 0;
        for (let i = 0; i < Math.min(levels.length, topN); i++) {
          const px = Number(levels[i][0]);
          const sz = Number(levels[i][1]);
          if (!isFinite(px) || !isFinite(sz)) continue;
          s += px * sz;
        }
        return s;
      }

function calcDepthStats(depthJson, topN) {
        const bids = depthJson?.data?.bids || [];
        const asks = depthJson?.data?.asks || [];
        const bn = sumNotional(bids, topN);
        const an = sumNotional(asks, topN);
        const total = bn + an;
        const bidPct = total > 0 ? (bn / total) * 100 : null;
        const askPct = total > 0 ? (an / total) * 100 : null;

const bestBid = bids[0] ? Number(bids[0][0]) : null;
        const bestAsk = asks[0] ? Number(asks[0][0]) : null;
        let spreadBps = null;
        if (bestBid != null && bestAsk != null) {
          const mid = (bestBid + bestAsk) / 2;
          spreadBps = ((bestAsk - bestBid) / mid) * 10000;
        }

// Imbalance: Bid/Ask (bid가 작으면 1 미만)
        const imb = an > 0 ? bn / an : null;

return {
          bidNotional: bn,
          askNotional: an,
          totalNotional: total,
          bidPct: bidPct == null ? null : Math.round(bidPct * 100) / 100,
          askPct: askPct == null ? null : Math.round(askPct * 100) / 100,
          spreadBps:
            spreadBps == null ? null : Math.round(spreadBps * 100) / 100,
          imbalance: imb == null ? null : Math.round(imb * 100) / 100 / 1, // 보이는 값은 그대로 소수 둘째자리
        };
      }

/* 5초 Collapse: 총호가노출(TopN) 기준 5초 전 대비 증감율(%) */
      const collapseHist = []; // {ts, total}
      function getCollapse5s(nowTotal) {
        const now = Date.now();
        collapseHist.push({ ts: now, total: nowTotal });
        // 12초 보관
        while (collapseHist.length && now - collapseHist[0].ts > 12000)
          collapseHist.shift();
        // 5초 이상 경과한 첫 값 찾기
        for (let i = 0; i < collapseHist.length; i++) {
          if (now - collapseHist[i].ts >= 5000) {
            const base = collapseHist[i].total;
            if (base > 0) {
              const deltaPct = ((nowTotal - base) / base) * 100;
              return Math.round(deltaPct * 100) / 100;
            }
            break;
          }
        }
        return null;
      }

/* --------------------------- 위험도 산정 --------------------------- */
      /* 간단 점수 합산: 높은 점수일수록 위험 */
      function judgeRisk({
        imbalance,
        collapse5s,
        divergencePct,
        spreadBps,
        bidPct,
        askPct,
      }) {
        let score = 0;
        // Imbalance: 0.5x 미만 혹은 2.0x 초과면 가중
        if (imbalance != null) {
          if (imbalance < 0.5 || imbalance > 2.0) score += 2;
          if (imbalance < 0.35 || imbalance > 2.85) score += 1;
        }
        // Collapse: -20% 이상 급감
        if (collapse5s != null) {
          if (collapse5s <= -20) score += 2;
          if (collapse5s <= -35) score += 1;
        }
        // Divergence: 0.5% 초과
        if (divergencePct != null) {
          if (Math.abs(divergencePct) >= 0.5) score += 1;
          if (Math.abs(divergencePct) >= 1.0) score += 1;
        }
        // Spread: 3 bps 초과
        if (spreadBps != null) {
          if (spreadBps >= 3) score += 1;
          if (spreadBps >= 6) score += 1;
        }
        // 양극단 호가 집중
        if (bidPct != null && askPct != null) {
          if (bidPct >= 75 || askPct >= 75) score += 1;
          if (bidPct >= 85 || askPct >= 85) score += 1;
        }

// L0~L3
        let level = "L0 (정상)";
        if (score >= 5) level = "L3 (위험)";
        else if (score >= 3) level = "L2 (주의)";
        else if (score >= 1) level = "L1 (관심)";
        return { score, level };
      }

/* --------------------------- 루프 --------------------------- */
      let timer = null;

async function tick() {
        const symbol = $("sym").value.trim().toUpperCase();
        const topN = parseInt($("topn").value, 10);

try {
          $("status").textContent = "요청 중…";

const [depth, futMap, spotMap] = await Promise.all([
            getMergeDepth(symbol, topN),
            getFuturesTickerMap(),
            getSpotTickerMap(),
          ]);

const ds = calcDepthStats(depth, topN);
          const futPx = futMap.get(symbol) ?? null;
          const spotPx = spotMap.get(symbol) ?? null;
          const divergencePct =
            futPx != null && spotPx != null && spotPx > 0
              ? ((futPx - spotPx) / spotPx) * 100
              : null;

const collapse5s = getCollapse5s(ds.totalNotional);

// Render KPIs
          $("kpiImb").textContent = x2(ds.imbalance);
          $("kpiCollapse").textContent = pct2(collapse5s);
          $("kpiDiv").textContent = pct2(divergencePct);
          $("kpiSpread").textContent = bps2(ds.spreadBps);
          $("kpiBidPct").textContent = pct2(ds.bidPct);
          $("kpiAskPct").textContent = pct2(ds.askPct);

// Risk level
          const risk = judgeRisk({
            imbalance: ds.imbalance,
            collapse5s,
            divergencePct,
            spreadBps: ds.spreadBps,
            bidPct: ds.bidPct,
            askPct: ds.askPct,
          });
          $("riskBadge").textContent = `Risk: ${risk.level}`;
          $("riskBadge").className =
            "badge " +
            (risk.level.includes("L3")
              ? "danger"
              : risk.level.includes("L2")
                ? "warn"
                : risk.level.includes("L1")
                  ? "info"
                  : "");

$("status").textContent = "업데이트";
        } catch (e) {
          $("status").textContent = "오류";
          log("에러: " + (e?.message || e));
        }
      }

$("startBtn").onclick = start;
      $("stopBtn").onclick = stop;

/* --------------------------- [MOD] 자동 시작 --------------------------- */
      window.addEventListener("load", () => {
        start();
      });
    </script>
    
  </body>
</html>

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