"""
Default Indicator Creation

This module creates a set of default indicators that users can start with.
These are common indicator configurations that are immediately useful.
"""

from .indicator_manager import get_indicator_manager, IndicatorType, DisplayType


def create_default_indicators():
    """Create default indicators if they don't exist."""
    manager = get_indicator_manager()
    
    # Check if we already have indicators
    existing_indicators = manager.list_indicators()
    if existing_indicators:
        manager.logger.info(f"Indicator defaults: Found {len(existing_indicators)} existing indicators, skipping defaults creation")
        return
    
    # Define default indicators
    default_indicators = [
        # Moving Averages
        {
            "name": "SMA 20",
            "description": "20-period Simple Moving Average for short-term trend",
            "type": IndicatorType.SMA.value,
            "parameters": {"period": 20},
            "color": "#007bff"
        },
        {
            "name": "SMA 50", 
            "description": "50-period Simple Moving Average for medium-term trend",
            "type": IndicatorType.SMA.value,
            "parameters": {"period": 50},
            "color": "#6c757d"
        },
        {
            "name": "EMA 12",
            "description": "12-period Exponential Moving Average for fast signals",
            "type": IndicatorType.EMA.value,
            "parameters": {"period": 12},
            "color": "#ff6b35"
        },
        {
            "name": "EMA 26",
            "description": "26-period Exponential Moving Average for slower signals",
            "type": IndicatorType.EMA.value,
            "parameters": {"period": 26},
            "color": "#28a745"
        },
        
        # Oscillators
        {
            "name": "RSI 14",
            "description": "14-period RSI for momentum analysis",
            "type": IndicatorType.RSI.value,
            "parameters": {"period": 14},
            "color": "#20c997"
        },
        {
            "name": "RSI 21",
            "description": "21-period RSI for less sensitive momentum signals",
            "type": IndicatorType.RSI.value,
            "parameters": {"period": 21},
            "color": "#17a2b8"
        },
        
        # MACD Variants
        {
            "name": "MACD Standard",
            "description": "Standard MACD (12, 26, 9) for trend changes",
            "type": IndicatorType.MACD.value,
            "parameters": {"fast_period": 12, "slow_period": 26, "signal_period": 9},
            "color": "#fd7e14"
        },
        {
            "name": "MACD Fast",
            "description": "Fast MACD (5, 13, 4) for quick signals",
            "type": IndicatorType.MACD.value,
            "parameters": {"fast_period": 5, "slow_period": 13, "signal_period": 4},
            "color": "#dc3545"
        },
        
        # Bollinger Bands
        {
            "name": "Bollinger Bands",
            "description": "Standard Bollinger Bands (20, 2) for volatility analysis",
            "type": IndicatorType.BOLLINGER_BANDS.value,
            "parameters": {"period": 20, "std_dev": 2.0},
            "color": "#6f42c1"
        },
        {
            "name": "Bollinger Tight",
            "description": "Tight Bollinger Bands (20, 1.5) for sensitive volatility",
            "type": IndicatorType.BOLLINGER_BANDS.value,
            "parameters": {"period": 20, "std_dev": 1.5},
            "color": "#e83e8c"
        }
    ]
    
    # Create indicators
    created_count = 0
    for indicator_config in default_indicators:
        indicator = manager.create_indicator(
            name=indicator_config["name"],
            indicator_type=indicator_config["type"],
            parameters=indicator_config["parameters"],
            description=indicator_config["description"],
            color=indicator_config["color"]
        )
        
        if indicator:
            created_count += 1
            manager.logger.info(f"Indicator defaults: Created default indicator: {indicator.name}")
        else:
            manager.logger.error(f"Indicator defaults: Failed to create indicator: {indicator_config['name']}")
    
    manager.logger.info(f"Indicator defaults: Created {created_count} default indicators")


def ensure_default_indicators():
    """Ensure default indicators exist (called during app startup)."""
    try:
        create_default_indicators()
    except Exception as e:
        manager = get_indicator_manager()
        manager.logger.error(f"Indicator defaults: Error creating default indicators: {e}")


if __name__ == "__main__":
    # Create defaults when run directly
    create_default_indicators()