Add comprehensive stop loss and take profit functionality

- Added stop loss and take profit parameters to TradeParams interface
- Implemented conditional order placement in executeTrade method
- Added ZERO import and closePosition method to DriftTradingService
- Enhanced trade API to handle stop loss/take profit parameters
- Added position fetching and closing functionality to AdvancedTradingPanel
- Added open positions display with close buttons
- Implemented risk management calculations and UI
- Added conditional order tracking in TradeResult interface

app/api/drift/close-position/route.ts

@@ -0,0 +1,46 @@
+import { NextResponse } from 'next/server'
+import { driftTradingService } from '../../../../lib/drift-trading'
+
+export async function POST(request: Request) {
+  try {
+    const { symbol, amount } = await request.json()
+    
+    console.log(`🔒 Close position request: ${amount || 'ALL'} ${symbol}`)
+    
+    // Validate inputs
+    if (!symbol) {
+      return NextResponse.json(
+        { success: false, error: 'Symbol is required' },
+        { status: 400 }
+      )
+    }
+
+    // Execute position close
+    const result = await driftTradingService.closePosition(symbol, amount)
+    
+    if (result.success) {
+      console.log(`✅ Position closed successfully: ${result.txId}`)
+      return NextResponse.json({
+        success: true,
+        txId: result.txId,
+        message: `Position in ${symbol} closed successfully`
+      })
+    } else {
+      console.error(`❌ Failed to close position: ${result.error}`)
+      return NextResponse.json(
+        { success: false, error: result.error },
+        { status: 500 }
+      )
+    }
+    
+  } catch (error: any) {
+    console.error('❌ Close position API error:', error)
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: error.message || 'Failed to close position'
+      }, 
+      { status: 500 }
+    )
+  }
+}

app/api/drift/trade/route.ts

@@ -0,0 +1,105 @@
+import { NextResponse } from 'next/server'
+import { driftTradingService } from '../../../../lib/drift-trading'
+
+export async function POST(request: Request) {
+  try {
+    const { 
+      symbol, 
+      side, 
+      amount, 
+      leverage, 
+      orderType, 
+      price, 
+      stopLoss, 
+      takeProfit,
+      stopLossType,
+      takeProfitType 
+    } = await request.json()
+    
+    console.log(`🎯 Trade request: ${side} ${amount} ${symbol} at ${leverage}x leverage`)
+    if (stopLoss) console.log(`🛑 Stop Loss: $${stopLoss} (${stopLossType})`)
+    if (takeProfit) console.log(`🎯 Take Profit: $${takeProfit} (${takeProfitType})`)
+    
+    // Validate inputs
+    if (!symbol || !side || !amount || !leverage) {
+      return NextResponse.json(
+        { success: false, error: 'Missing required trade parameters' },
+        { status: 400 }
+      )
+    }
+
+    if (amount <= 0 || leverage < 1 || leverage > 20) {
+      return NextResponse.json(
+        { success: false, error: 'Invalid trade parameters' },
+        { status: 400 }
+      )
+    }
+
+    // Validate stop loss and take profit if provided
+    if (stopLoss && stopLoss <= 0) {
+      return NextResponse.json(
+        { success: false, error: 'Invalid stop loss price' },
+        { status: 400 }
+      )
+    }
+
+    if (takeProfit && takeProfit <= 0) {
+      return NextResponse.json(
+        { success: false, error: 'Invalid take profit price' },
+        { status: 400 }
+      )
+    }
+
+    // Convert LONG/SHORT to BUY/SELL for the trading service
+    const tradeSide: 'BUY' | 'SELL' = side === 'LONG' ? 'BUY' : 'SELL'
+    
+    // Execute trade
+    const tradeParams = {
+      symbol,
+      side: tradeSide,
+      amount, // Position size in tokens
+      orderType: orderType || 'MARKET',
+      price: orderType === 'LIMIT' ? price : undefined,
+      stopLoss,
+      takeProfit,
+      stopLossType,
+      takeProfitType
+    }
+
+    const result = await driftTradingService.executeTrade(tradeParams)
+    
+    if (result.success) {
+      console.log(`✅ Trade executed successfully: ${result.txId}`)
+      const response: any = {
+        success: true,
+        txId: result.txId,
+        executedPrice: result.executedPrice,
+        executedAmount: result.executedAmount,
+        message: `${side} order for ${amount} ${symbol} executed successfully`
+      }
+      
+      if (result.conditionalOrders && result.conditionalOrders.length > 0) {
+        response.conditionalOrders = result.conditionalOrders
+        response.message += ` with ${result.conditionalOrders.length} conditional order(s)`
+      }
+      
+      return NextResponse.json(response)
+    } else {
+      console.error(`❌ Trade execution failed: ${result.error}`)
+      return NextResponse.json(
+        { success: false, error: result.error },
+        { status: 500 }
+      )
+    }
+    
+  } catch (error: any) {
+    console.error('❌ Trade API error:', error)
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: error.message || 'Trade execution failed'
+      }, 
+      { status: 500 }
+    )
+  }
+}