feat: add ohlcv candle limit specific for bitget

freqtrade/exchange/bitget.py

@@ -1,7 +1,10 @@
 import logging
+from datetime import timedelta
 
+from freqtrade.enums import CandleType
 from freqtrade.exchange import Exchange
 from freqtrade.exchange.exchange_types import FtHas
+from freqtrade.util.datetime_helpers import dt_now, dt_ts
 
 
 logger = logging.getLogger(__name__)
@@ -20,3 +23,26 @@ class Bitget(Exchange):
     _ft_has: FtHas = {
         "ohlcv_candle_limit": 200,  # 200 for historical candles, 1000 for recent ones.
     }
+
+    def ohlcv_candle_limit(
+        self, timeframe: str, candle_type: CandleType, since_ms: int | None = None
+    ) -> int:
+        """
+        Exchange ohlcv candle limit
+        bitget has the following behaviour:
+        * 1000 candles for up-to-date data
+        * 200 candles for historic data (prior to a certain date)
+        :param timeframe: Timeframe to check
+        :param candle_type: Candle-type
+        :param since_ms: Starting timestamp
+        :return: Candle limit as integer
+        """
+        timeframe_map = self._api.options["fetchOHLCV"]["maxRecentDaysPerTimeframe"]
+        days = timeframe_map.get(timeframe, 30)
+
+        if candle_type in (CandleType.FUTURES, CandleType.SPOT) and (
+            not since_ms or dt_ts(dt_now() - timedelta(days=days)) < since_ms
+        ):
+            return 1000
+
+        return super().ohlcv_candle_limit(timeframe, candle_type, since_ms)