From eaa7370174e1b5188192e99bb205f2f03e8063b0 Mon Sep 17 00:00:00 2001
From: thopd88 <20041501+thopd88@users.noreply.github.com>
Date: Mon, 20 Jul 2020 11:08:18 +0700
Subject: [PATCH] add /delete command

---
 freqtrade/rpc/rpc.py      | 22 ++++++++++++++++++++++
 freqtrade/rpc/telegram.py | 20 ++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/freqtrade/rpc/rpc.py b/freqtrade/rpc/rpc.py
index c73fcbf54..b76259ad2 100644
--- a/freqtrade/rpc/rpc.py
+++ b/freqtrade/rpc/rpc.py
@@ -536,6 +536,28 @@ class RPC:
             return trade
         else:
             return None
+            
+    def _rpc_delete(self, trade_id: str) -> Dict[str, str]:
+        """
+        Handler for delete <id>.
+        Delete the given trade
+        """
+        def _exec_delete(trade: Trade) -> None:
+            Trade.session.delete(trade)
+            Trade.session.flush()
+
+        with self._freqtrade._sell_lock:
+            trade = Trade.get_trades(
+                trade_filter=[Trade.id == trade_id, ]
+            ).first()
+            if not trade:
+                logger.warning('delete: Invalid argument received')
+                raise RPCException('invalid argument')
+
+            _exec_delete(trade)
+            Trade.session.flush()
+            self._freqtrade.wallets.update()
+            return {'result': f'Deleted trade {trade_id}.'}
 
     def _rpc_performance(self) -> List[Dict[str, Any]]:
         """
diff --git a/freqtrade/rpc/telegram.py b/freqtrade/rpc/telegram.py
index 13cc1afaf..7d006c4e5 100644
--- a/freqtrade/rpc/telegram.py
+++ b/freqtrade/rpc/telegram.py
@@ -92,6 +92,7 @@ class Telegram(RPC):
             CommandHandler('stop', self._stop),
             CommandHandler('forcesell', self._forcesell),
             CommandHandler('forcebuy', self._forcebuy),
+            CommandHandler('delete', self._delete),
             CommandHandler('performance', self._performance),
             CommandHandler('daily', self._daily),
             CommandHandler('count', self._count),
@@ -496,6 +497,24 @@ class Telegram(RPC):
         except RPCException as e:
             self._send_msg(str(e))
 
+    @authorized_only
+    def _delete(self, update: Update, context: CallbackContext) -> None:
+        """
+        Handler for /delete <id>.
+        Delete the given trade
+        :param bot: telegram bot
+        :param update: message update
+        :return: None
+        """
+
+        trade_id = context.args[0] if len(context.args) > 0 else None
+        try:
+            msg = self._rpc_delete(trade_id)
+            self._send_msg('Delete Result: `{result}`'.format(**msg))
+
+        except RPCException as e:
+            self._send_msg(str(e))
+
     @authorized_only
     def _performance(self, update: Update, context: CallbackContext) -> None:
         """
@@ -613,6 +632,7 @@ class Telegram(RPC):
                    "*/forcesell <trade_id>|all:* `Instantly sells the given trade or all trades, "
                    "regardless of profit`\n"
                    f"{forcebuy_text if self._config.get('forcebuy_enable', False) else ''}"
+                   "*/delete <trade_id>:* `Instantly delete the given trade in the database`\n"
                    "*/performance:* `Show performance of each finished trade grouped by pair`\n"
                    "*/daily <n>:* `Shows profit or loss per day, over the last n days`\n"
                    "*/count:* `Show number of trades running compared to allowed number of trades`"