Fix amp-stats long-range candles via OKX history endpoints.

Recent candles cap near 60d; continue with history-index/history candles and color profit green/red.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/hub/amp_stats_lib.py

@@ -40,7 +40,9 @@ PERIOD_DAYS: dict[str, int] = {
 }
 
 OKX_INDEX_CANDLES = "https://www.okx.com/api/v5/market/index-candles"
+OKX_HISTORY_INDEX_CANDLES = "https://www.okx.com/api/v5/market/history-index-candles"
 OKX_SWAP_CANDLES = "https://www.okx.com/api/v5/market/candles"
+OKX_HISTORY_SWAP_CANDLES = "https://www.okx.com/api/v5/market/history-candles"
 
 
 def normalize_symbol(raw: str) -> str:
@@ -408,8 +410,13 @@ def fetch_okx_candles(
     bar: str = "1H",
     client: Optional[httpx.Client] = None,
     timeout: float = 30.0,
+    history_url: Optional[str] = None,
+    max_pages: int = 200,
 ) -> list[dict[str, Any]]:
-    """拉取 [since_ms, until_ms] 覆盖的 K 线(含边界).OKX 返回新→旧."""
+    """拉取 [since_ms, until_ms] 覆盖的 K 线(含边界).
+
+    OKX 近期接口约仅 1440 根;更早需 history_* 端点续拉.
+    """
     own = client is None
     client = client or httpx.Client(
         timeout=timeout,
@@ -419,25 +426,42 @@ def fetch_okx_candles(
     try:
         out: dict[int, dict[str, Any]] = {}
         after: Optional[str] = None
-        for _ in range(80):
+        active_url = url
+        switched_history = False
+        empty_streak = 0
+        for _ in range(max(20, int(max_pages))):
             params: dict[str, str] = {"instId": inst_id, "bar": bar, "limit": "100"}
             if after:
                 params["after"] = after
-            r = client.get(url, params=params)
+            r = client.get(active_url, params=params)
             r.raise_for_status()
             body = r.json()
             if str(body.get("code") or "") not in ("0", "0.0", ""):
                 raise RuntimeError(body.get("msg") or f"OKX error {body.get('code')}")
             data = body.get("data") or []
             if not data:
+                empty_streak += 1
+                # 近期接口到头 → 切历史端点再试
+                if (
+                    history_url
+                    and not switched_history
+                    and after is not None
+                ):
+                    active_url = history_url
+                    switched_history = True
+                    empty_streak = 0
+                    continue
                 break
+            empty_streak = 0
             oldest_ts = None
+            newest_in_page = None
             for row in data:
                 parsed = _parse_okx_candle_row(row)
                 if not parsed:
                     continue
                 ts = int(parsed["ts"])
                 oldest_ts = ts if oldest_ts is None else min(oldest_ts, ts)
+                newest_in_page = ts if newest_in_page is None else max(newest_in_page, ts)
                 if ts < since_ms - 3600 * 1000:
                     continue
                 if ts > until_ms + 3600 * 1000:
@@ -447,7 +471,23 @@ def fetch_okx_candles(
                 break
             if oldest_ts <= since_ms:
                 break
+            # 无新进度时避免死循环
+            if after is not None and str(oldest_ts) == after:
+                if history_url and not switched_history:
+                    active_url = history_url
+                    switched_history = True
+                    continue
+                break
             after = str(oldest_ts)
+            # 近期接口返回变少且仍未覆盖 since → 切历史
+            if (
+                history_url
+                and not switched_history
+                and len(data) < 100
+                and oldest_ts > since_ms
+            ):
+                active_url = history_url
+                switched_history = True
         return [out[k] for k in sorted(out.keys())]
     finally:
         if own:
@@ -471,6 +511,7 @@ def fetch_symbol_bars(
     try:
         bars = fetch_okx_candles(
             url=OKX_INDEX_CANDLES,
+            history_url=OKX_HISTORY_INDEX_CANDLES,
             inst_id=meta["index_inst"],
             since_ms=since_ms,
             until_ms=until_ms,
@@ -482,6 +523,7 @@ def fetch_symbol_bars(
 
     bars = fetch_okx_candles(
         url=OKX_SWAP_CANDLES,
+        history_url=OKX_HISTORY_SWAP_CANDLES,
         inst_id=meta["swap_inst"],
         since_ms=since_ms,
         until_ms=until_ms,