From 4ef45314ddde0f4d5ab02ef1d56694d3f4a228c4 Mon Sep 17 00:00:00 2001
From: "Jakub Werner (jakubikan)" <jack@jaxxnet.de>
Date: Fri, 22 Mar 2024 20:18:52 +0100
Subject: [PATCH] JW: adding first draft for deslist schedule

---
 freqtrade/exchange/binance.py  | 41 ++++++++++++++++++++++++++++++++++
 tests/exchange/test_binance.py |  8 +++++++
 2 files changed, 49 insertions(+)

diff --git a/freqtrade/exchange/binance.py b/freqtrade/exchange/binance.py
index 89b983d91..def3b91a8 100644
--- a/freqtrade/exchange/binance.py
+++ b/freqtrade/exchange/binance.py
@@ -217,3 +217,44 @@ class Binance(Exchange):
                     raise OperationalException(e) from e
         else:
             return {}
+
+    def get_spot_delist_schedule(self, refresh: bool) -> list:
+        """
+        Calculates bid/ask target
+        bid rate - between current ask price and last price
+        ask rate - either using ticker bid or first bid based on orderbook
+        or remain static in any other case since it's not updating.
+        :param pair: Pair to get rate for
+        :param refresh: allow cached data
+        :param side: "buy" or "sell"
+        :return: float: Price
+        :raises PricingError if orderbook price could not be determined.
+        """
+        if not refresh:
+            with self._cache_lock:
+                rate = cache_rate.get(pair)
+            # Check if cache has been invalidated
+            if rate:
+                logger.debug(f"Using cached {side} rate for {pair}.")
+                return rate
+
+
+        if conf_strategy.get('use_order_book', False):
+
+            order_book_top = conf_strategy.get('order_book_top', 1)
+            if order_book is None:
+                order_book = self.fetch_l2_order_book(pair, order_book_top)
+            rate = self._get_rate_from_ob(pair, side, order_book, name, price_side,
+                                          order_book_top)
+        else:
+            logger.debug(f"Using Last {price_side.capitalize()} / Last Price")
+            if ticker is None:
+                ticker = self.fetch_ticker(pair)
+            rate = self._get_rate_from_ticker(side, ticker, conf_strategy, price_side)
+
+        if rate is None:
+            raise PricingError(f"{name}-Rate for {pair} was empty.")
+        with self._cache_lock:
+            cache_rate[pair] = rate
+
+        return delistings
\ No newline at end of file
diff --git a/tests/exchange/test_binance.py b/tests/exchange/test_binance.py
index 625033645..ac87c0ca3 100644
--- a/tests/exchange/test_binance.py
+++ b/tests/exchange/test_binance.py
@@ -617,3 +617,11 @@ def test_get_maintenance_ratio_and_amt_binance(
     exchange._leverage_tiers = leverage_tiers
     (result_ratio, result_amt) = exchange.get_maintenance_ratio_and_amt(pair, nominal_value)
     assert (round(result_ratio, 8), round(result_amt, 8)) == (mm_ratio, amt)
+
+
+def test_get_spot_delist_schedule(mocker, default_conf) -> None:
+    exchange = get_patched_exchange(mocker, default_conf, id='binance')
+    exchange._api.sapi_get_spot_delist_schedule = get_mock_coro([{'delistTime': '1712113200000', 'symbols': ['DREPBTC', 'DREPUSDT', 'MOBBTC', 'MOBUSDT', 'PNTUSDT']}])
+
+
+    assert exchange.get_spot_delist_schedule(True) == ['DREP/BTC', 'DREP/USDT', 'MOB/BTC', 'MOB/USDT', 'PNT/USDT']
\ No newline at end of file