Feat: Add candlestick pattern selection to technical scanner page

src/pages/screener/technical_scanner_page.py

@@ -1,6 +1,7 @@
 import streamlit as st
 from screener.scanner_controller import run_technical_scanner
 from utils.report_utils import load_scanner_reports
+from screener.t_candlestick import CANDLESTICK_PATTERNS
 import pandas as pd
 
 def technical_scanner_page():
@@ -16,6 +17,17 @@ def technical_scanner_page():
             key="tech_scanner_type"
         )
 
+        # Add candlestick pattern selection when Candlestick scanner is chosen
+        selected_patterns = None
+        if scanner_type == "Candlestick":
+            selected_patterns = st.multiselect(
+                "Select Candlestick Patterns",
+                options=list(CANDLESTICK_PATTERNS.keys()),
+                default=list(CANDLESTICK_PATTERNS.keys()),
+                format_func=lambda x: CANDLESTICK_PATTERNS[x]['description'],
+                help="Choose which candlestick patterns to scan for"
+            )
+
         # Add interval selection
         interval = st.selectbox(
             "Select Time Interval",
@@ -52,16 +64,22 @@ def technical_scanner_page():
         if st.button("Run Scanner"):
             with st.spinner("Running scanner..."):
                 try:
-                    signals = run_technical_scanner(
-                        scanner_choice=scanner_type.lower().replace(" ", "_"),
-                        start_date=start_date.strftime("%Y-%m-%d"),
-                        end_date=end_date.strftime("%Y-%m-%d"),
-                        min_price=min_price,
-                        max_price=max_price,
-                        min_volume=min_volume,
-                        portfolio_size=portfolio_size,
-                        interval=selected_interval
-                    )
+                    scanner_args = {
+                        "scanner_choice": scanner_type.lower().replace(" ", "_"),
+                        "start_date": start_date.strftime("%Y-%m-%d"),
+                        "end_date": end_date.strftime("%Y-%m-%d"),
+                        "min_price": min_price,
+                        "max_price": max_price,
+                        "min_volume": min_volume,
+                        "portfolio_size": portfolio_size,
+                        "interval": selected_interval
+                    }
+                    
+                    # Add selected patterns if using candlestick scanner
+                    if scanner_type == "Candlestick":
+                        scanner_args["selected_patterns"] = selected_patterns
+
+                    signals = run_technical_scanner(**scanner_args)
                     if signals:
                         st.success(f"Found {len(signals)} signals")
                         # Create a summary table

src/screener/scanner_controller.py

@@ -3,10 +3,12 @@ from screener.t_sunnyband import run_sunny_scanner
 from screener.t_atr_ema import run_atr_ema_scanner
 from screener.t_atr_ema_v2 import run_atr_ema_scanner_v2
 from screener.t_heikinashi import run_heikin_ashi_scanner
+from screener.t_candlestick import run_candlestick_scanner
 
 def run_technical_scanner(scanner_choice: str, start_date: str, end_date: str, 
                          min_price: float, max_price: float, min_volume: int, 
-                         portfolio_size: float, interval: str = "1d"):
+                         portfolio_size: float, interval: str = "1d",
+                         selected_patterns: list = None):
     """
     Run the selected technical scanner with provided parameters
     
@@ -28,7 +30,8 @@ def run_technical_scanner(scanner_choice: str, start_date: str, end_date: str,
         "sunnybands": lambda: run_sunny_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt),
         "atr-ema": lambda: run_atr_ema_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt),
         "atr-ema_v2": lambda: run_atr_ema_scanner_v2(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt),
-        "heikin-ashi": lambda: run_heikin_ashi_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt)
+        "heikin-ashi": lambda: run_heikin_ashi_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt),
+        "candlestick": lambda: run_candlestick_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt, selected_patterns)
     }
     
     scanner_func = scanner_map.get(scanner_choice)

src/screener/t_candlestick.py

@@ -33,7 +33,7 @@ CANDLESTICK_PATTERNS = {
     }
 }
 
-def check_entry_signal(df: pd.DataFrame) -> list:
+def check_entry_signal(df: pd.DataFrame, selected_patterns: list = None) -> list:
     """
     Check for bullish candlestick patterns
     
@@ -48,9 +48,13 @@ def check_entry_signal(df: pd.DataFrame) -> list:
     
     signals = []
     
-    # Calculate all patterns
+    # Use selected patterns or all patterns if none selected
+    patterns_to_scan = {k: v for k, v in CANDLESTICK_PATTERNS.items() 
+                       if selected_patterns is None or k in selected_patterns}
+    
+    # Calculate patterns
     pattern_signals = {}
-    for pattern_name, pattern_info in CANDLESTICK_PATTERNS.items():
+    for pattern_name, pattern_info in patterns_to_scan.items():
         pattern_signals[pattern_name] = pattern_info['function'](
             df['open'].values, 
             df['high'].values,