(feat) add config and backtesting pages

pages/config/utils.py

@@ -0,0 +1,28 @@
+import datetime
+
+import streamlit as st
+import pandas as pd
+
+from CONFIG import BACKEND_API_HOST, BACKEND_API_PORT
+from backend.services.backend_api_client import BackendAPIClient
+
+
+def get_max_records(days_to_download: int, interval: str) -> int:
+    conversion = {"s": 1 / 60, "m": 1, "h": 60, "d": 1440}
+    unit = interval[-1]
+    quantity = int(interval[:-1])
+    return int(days_to_download * 24 * 60 / (quantity * conversion[unit]))
+
+
+@st.cache_data
+def get_candles(connector_name="binance", trading_pair="BTC-USDT", interval="1m", days=7):
+    backend_client = BackendAPIClient(BACKEND_API_HOST, BACKEND_API_PORT)
+    end_time = datetime.datetime.now() - datetime.timedelta(minutes=15)
+    start_time = end_time - datetime.timedelta(days=days)
+
+    df = pd.DataFrame(backend_client.get_historical_candles(connector_name, trading_pair, interval,
+                                                            start_time=int(start_time.timestamp() * 1000),
+                                                            end_time=int(end_time.timestamp() * 1000)))
+    df.index = pd.to_datetime(df.timestamp, unit='s')
+    return df
+