use napi_derive::napi;
use napi::bindgen_prelude::*;
use std::sync::Arc;

#[napi]
pub struct PositionsAPI {
    core: Arc<crate::TradingCore>,
}

impl PositionsAPI {
    pub fn new(core: Arc<crate::TradingCore>) -> Self {
        Self { core }
    }
}

#[napi]
impl PositionsAPI {
    #[napi]
    pub fn get_position(&self, symbol: String) -> Result<JsObject> {
        let position = self.core.position_tracker
            .get_position(&symbol)
            .ok_or_else(|| Error::from_reason("No position found"))?;
            
        // Convert position to JsObject
        todo!("Convert position to JsObject")
    }
    
    #[napi]
    pub fn get_all_positions(&self) -> Result<Vec<JsObject>> {
        let positions = self.core.position_tracker.get_all_positions();
        
        // Convert positions to JsObjects
        todo!("Convert positions to JsObjects")
    }
    
    #[napi]
    pub fn get_closed_trades(&self) -> Result<Vec<JsObject>> {
        let trades = self.core.position_tracker.get_closed_trades();
        
        // Convert trades to JsObjects
        todo!("Convert trades to JsObjects")
    }
    
    #[napi]
    pub fn get_pnl(&self, symbol: Option<String>) -> Result<f64> {
        if let Some(sym) = symbol {
            // Get P&L for specific symbol
            let position = self.core.position_tracker
                .get_position(&sym)
                .ok_or_else(|| Error::from_reason("No position found"))?;
            Ok(position.realized_pnl + position.unrealized_pnl)
        } else {
            // Get total P&L
            let positions = self.core.position_tracker.get_all_positions();
            let total_pnl = positions.into_iter()
                .map(|p| p.realized_pnl + p.unrealized_pnl)
                .sum();
            Ok(total_pnl)
        }
    }
    
    #[napi]
    pub fn get_portfolio_value(&self) -> Result<f64> {
        // Calculate total portfolio value
        todo!("Calculate portfolio value")
    }
}