From 00d4820bc108976b759170efa0127e1e7960b5fc Mon Sep 17 00:00:00 2001
From: Matthias <xmatthias@outlook.com>
Date: Wed, 11 Nov 2020 07:49:30 +0100
Subject: [PATCH] Add low_profit_pairs

---
 docs/includes/protections.md                  | 15 ++++
 freqtrade/constants.py                        |  2 +-
 .../plugins/protections/low_profit_pairs.py   | 81 +++++++++++++++++++
 3 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100644 freqtrade/plugins/protections/low_profit_pairs.py

diff --git a/docs/includes/protections.md b/docs/includes/protections.md
index 078ba0c2b..aa0ca0f97 100644
--- a/docs/includes/protections.md
+++ b/docs/includes/protections.md
@@ -21,6 +21,21 @@ Protections will protect your strategy from unexpected events and market conditi
 !!! Note
     `StoplossGuard` considers all trades with the results `"stop_loss"` and `"trailing_stop_loss"` if the result was negative.
 
+#### Low Profit Pairs
+
+`LowProfitpairs` uses all trades for a pair within a `lookback_period` (in minutes) to determine the overall profit ratio.
+If that ratio is below `required_profit`, that pair will be locked for `stop_duration` (in minutes).
+
+```json
+"protections": [{
+        "method": "LowProfitpairs",
+        "lookback_period": 60,
+        "trade_limit": 4,
+        "stop_duration": 60,
+        "required_profit": 0.02
+}],
+```
+
 ### Full example of Protections
 
 The below example stops trading if more than 4 stoploss occur within a 1 hour (60 minute) limit.
diff --git a/freqtrade/constants.py b/freqtrade/constants.py
index 6319d1f62..812883da0 100644
--- a/freqtrade/constants.py
+++ b/freqtrade/constants.py
@@ -27,7 +27,7 @@ AVAILABLE_PAIRLISTS = ['StaticPairList', 'VolumePairList',
                        'AgeFilter', 'PerformanceFilter', 'PrecisionFilter',
                        'PriceFilter', 'RangeStabilityFilter', 'ShuffleFilter',
                        'SpreadFilter']
-AVAILABLE_PROTECTIONS = ['StoplossGuard', 'CooldownPeriod']
+AVAILABLE_PROTECTIONS = ['StoplossGuard', 'CooldownPeriod', 'LowProfitpairs']
 AVAILABLE_DATAHANDLERS = ['json', 'jsongz', 'hdf5']
 DRY_RUN_WALLET = 1000
 DATETIME_PRINT_FORMAT = '%Y-%m-%d %H:%M:%S'
diff --git a/freqtrade/plugins/protections/low_profit_pairs.py b/freqtrade/plugins/protections/low_profit_pairs.py
new file mode 100644
index 000000000..739642de7
--- /dev/null
+++ b/freqtrade/plugins/protections/low_profit_pairs.py
@@ -0,0 +1,81 @@
+
+import logging
+from datetime import datetime, timedelta
+from typing import Any, Dict
+
+
+from freqtrade.persistence import Trade
+from freqtrade.plugins.protections import IProtection, ProtectionReturn
+
+
+logger = logging.getLogger(__name__)
+
+
+class LowProfitpairs(IProtection):
+
+    def __init__(self, config: Dict[str, Any], protection_config: Dict[str, Any]) -> None:
+        super().__init__(config, protection_config)
+
+        self._lookback_period = protection_config.get('lookback_period', 60)
+        self._trade_limit = protection_config.get('trade_limit', 1)
+        self._stop_duration = protection_config.get('stop_duration', 60)
+        self._required_profit = protection_config.get('required_profit', 0.0)
+
+    def short_desc(self) -> str:
+        """
+        Short method description - used for startup-messages
+        """
+        return (f"{self.name} - Low Profit Protection, locks pairs with "
+                f"profit < {self._required_profit} within {self._lookback_period} minutes.")
+
+    def _reason(self, profit: float) -> str:
+        """
+        LockReason to use
+        """
+        return (f'{profit} < {self._required_profit} in {self._lookback_period} min, '
+                f'locking for {self._stop_duration} min.')
+
+    def _low_profit(self, date_now: datetime, pair: str) -> ProtectionReturn:
+        """
+        Evaluate recent trades for pair
+        """
+        look_back_until = date_now - timedelta(minutes=self._lookback_period)
+        filters = [
+            Trade.is_open.is_(False),
+            Trade.close_date > look_back_until,
+        ]
+        if pair:
+            filters.append(Trade.pair == pair)
+        trades = Trade.get_trades(filters).all()
+        if len(trades) < self._trade_limit:
+            # Not enough trades in the relevant period
+            return False, None, None
+
+        profit = sum(trade.close_profit for trade in trades)
+        if profit < self._required_profit:
+            self.log_on_refresh(
+                logger.info,
+                f"Trading for {pair} stopped due to {profit} < {self._required_profit} "
+                f"within {self._lookback_period} minutes.")
+            until = date_now + timedelta(minutes=self._stop_duration)
+            return True, until, self._reason(profit)
+
+        return False, None, None
+
+    def global_stop(self, date_now: datetime) -> ProtectionReturn:
+        """
+        Stops trading (position entering) for all pairs
+        This must evaluate to true for the whole period of the "cooldown period".
+        :return: Tuple of [bool, until, reason].
+            If true, all pairs will be locked with <reason> until <until>
+        """
+        return False, None, None
+
+    def stop_per_pair(self, pair: str, date_now: datetime) -> ProtectionReturn:
+        """
+        Stops trading (position entering) for this pair
+        This must evaluate to true for the whole period of the "cooldown period".
+        :return: Tuple of [bool, until, reason].
+            If true, this pair will be locked with <reason> until <until>
+        """
+        return self._low_profit(date_now, pair=None)