bd49c65867
- Fixed position calculator not showing when analysis entry price is 0 - Added auto-detection of Long/Short position type from AI analysis recommendation - Implemented independent price fetching from CoinGecko API - Added current market price display with AI recommendation - Enhanced position calculator with fallback prices for testing - Added API endpoint /api/price for real-time price data - Position calculator now works even when analysis lacks specific entry prices - Shows 'Auto-detected from analysis' label when position type is determined from AI The position calculator is now always visible and uses: 1. Current market price from CoinGecko API 2. Auto-detected position type from analysis (Long/Short) 3. Fallback prices for testing when API is unavailable 4. Default stop loss/take profit levels when not specified in analysis
464 lines
17 KiB
TypeScript
464 lines
17 KiB
TypeScript
// Dynamic Position Calculator Component
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"use client"
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import React, { useState, useEffect } from 'react'
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interface PositionCalculatorProps {
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analysis?: any // The AI analysis results
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currentPrice?: number
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symbol?: string
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onPositionChange?: (position: PositionCalculation) => void
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}
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interface PositionCalculation {
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investmentAmount: number
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leverage: number
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positionSize: number
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entryPrice: number
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stopLoss: number
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takeProfit: number
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liquidationPrice: number
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maxLoss: number
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maxProfit: number
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riskRewardRatio: number
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marginRequired: number
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tradingFee: number
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netInvestment: number
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}
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export default function PositionCalculator({
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analysis,
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currentPrice = 0,
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symbol = 'BTCUSD',
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onPositionChange
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}: PositionCalculatorProps) {
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const [investmentAmount, setInvestmentAmount] = useState<number>(100)
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const [leverage, setLeverage] = useState<number>(10)
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const [positionType, setPositionType] = useState<'long' | 'short'>('long')
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const [calculation, setCalculation] = useState<PositionCalculation | null>(null)
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const [showAdvanced, setShowAdvanced] = useState(false)
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const [marketPrice, setMarketPrice] = useState<number>(currentPrice)
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// Trading parameters
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const [tradingFee, setTradingFee] = useState<number>(0.1) // 0.1% fee
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const [maintenanceMargin, setMaintenanceMargin] = useState<number>(0.5) // 0.5% maintenance margin
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// Auto-detect position type from analysis
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useEffect(() => {
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if (analysis?.recommendation) {
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const rec = analysis.recommendation.toLowerCase()
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if (rec.includes('buy') || rec.includes('long') || rec.includes('bullish')) {
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setPositionType('long')
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} else if (rec.includes('sell') || rec.includes('short') || rec.includes('bearish')) {
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setPositionType('short')
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}
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}
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}, [analysis])
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// Fetch current market price if not provided
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useEffect(() => {
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const fetchPrice = async () => {
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if (currentPrice > 0) {
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setMarketPrice(currentPrice)
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return
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}
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try {
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const response = await fetch(`/api/price?symbol=${symbol}`)
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const data = await response.json()
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if (data.price) {
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setMarketPrice(data.price)
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}
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} catch (error) {
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console.error('Failed to fetch price:', error)
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// Fallback to a reasonable default for testing
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setMarketPrice(symbol.includes('BTC') ? 100000 : symbol.includes('ETH') ? 4000 : 100)
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}
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}
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fetchPrice()
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}, [currentPrice, symbol])
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// Calculate position metrics
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const calculatePosition = () => {
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const priceToUse = marketPrice || currentPrice
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if (!priceToUse || priceToUse <= 0) return null
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const positionSize = investmentAmount * leverage
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const marginRequired = investmentAmount
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const fee = positionSize * (tradingFee / 100)
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const netInvestment = investmentAmount + fee
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// Get AI analysis targets if available
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let entryPrice = priceToUse
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let stopLoss = 0
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let takeProfit = 0
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if (analysis && analysis.analysis) {
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// Try to extract entry, stop loss, and take profit from AI analysis
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const analysisText = analysis.analysis.toLowerCase()
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// Look for entry price
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const entryMatch = analysisText.match(/entry[:\s]*[\$]?(\d+\.?\d*)/i)
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if (entryMatch) {
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entryPrice = parseFloat(entryMatch[1])
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}
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// Look for stop loss
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const stopMatch = analysisText.match(/stop[:\s]*[\$]?(\d+\.?\d*)/i)
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if (stopMatch) {
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stopLoss = parseFloat(stopMatch[1])
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}
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// Look for take profit
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const profitMatch = analysisText.match(/(?:take profit|target)[:\s]*[\$]?(\d+\.?\d*)/i)
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if (profitMatch) {
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takeProfit = parseFloat(profitMatch[1])
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}
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// If no specific targets found, use percentage-based defaults
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if (!stopLoss) {
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stopLoss = positionType === 'long'
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? entryPrice * 0.95 // 5% stop loss for long
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: entryPrice * 1.05 // 5% stop loss for short
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}
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if (!takeProfit) {
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takeProfit = positionType === 'long'
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? entryPrice * 1.10 // 10% take profit for long
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: entryPrice * 0.90 // 10% take profit for short
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}
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} else {
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// Default targets if no analysis
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stopLoss = positionType === 'long'
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? priceToUse * 0.95
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: priceToUse * 1.05
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takeProfit = positionType === 'long'
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? priceToUse * 1.10
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: priceToUse * 0.90
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}
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// Calculate liquidation price
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const liquidationPrice = positionType === 'long'
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? entryPrice * (1 - (1 / leverage) + (maintenanceMargin / 100))
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: entryPrice * (1 + (1 / leverage) - (maintenanceMargin / 100))
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// Calculate PnL
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const stopLossChange = positionType === 'long'
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? (stopLoss - entryPrice) / entryPrice
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: (entryPrice - stopLoss) / entryPrice
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const takeProfitChange = positionType === 'long'
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? (takeProfit - entryPrice) / entryPrice
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: (entryPrice - takeProfit) / entryPrice
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const maxLoss = positionSize * Math.abs(stopLossChange)
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const maxProfit = positionSize * Math.abs(takeProfitChange)
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const riskRewardRatio = maxProfit / maxLoss
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const result: PositionCalculation = {
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investmentAmount,
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leverage,
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positionSize,
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entryPrice,
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stopLoss,
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takeProfit,
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liquidationPrice,
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maxLoss,
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maxProfit,
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riskRewardRatio,
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marginRequired,
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tradingFee: fee,
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netInvestment
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}
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setCalculation(result)
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onPositionChange?.(result)
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return result
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}
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// Recalculate when parameters change
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useEffect(() => {
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calculatePosition()
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}, [investmentAmount, leverage, positionType, currentPrice, analysis, tradingFee, maintenanceMargin])
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const formatCurrency = (amount: number, decimals: number = 2) => {
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return new Intl.NumberFormat('en-US', {
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style: 'currency',
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currency: 'USD',
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minimumFractionDigits: decimals,
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maximumFractionDigits: decimals
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}).format(amount)
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}
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const formatPrice = (price: number) => {
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return new Intl.NumberFormat('en-US', {
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style: 'decimal',
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minimumFractionDigits: 2,
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maximumFractionDigits: 2
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}).format(price)
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}
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return (
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<div className="bg-gradient-to-br from-gray-800/50 to-gray-900/50 border border-gray-700 rounded-lg p-6">
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<div className="flex items-center justify-between mb-6">
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<h3 className="text-xl font-bold text-white flex items-center">
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<span className="w-6 h-6 bg-gradient-to-br from-green-400 to-green-600 rounded-lg flex items-center justify-center mr-3 text-sm">
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📊
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</span>
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Position Calculator
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</h3>
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<button
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onClick={() => setShowAdvanced(!showAdvanced)}
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className="text-sm text-gray-400 hover:text-white transition-colors"
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>
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{showAdvanced ? '🔽 Hide Advanced' : '🔼 Show Advanced'}
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</button>
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</div>
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{/* Current Price Display */}
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<div className="mb-6 p-4 bg-gray-800/30 rounded-lg border border-gray-600">
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<div className="flex items-center justify-between">
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<div className="text-sm text-gray-400">Current Market Price</div>
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<div className="text-lg font-bold text-white">
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{symbol}: ${formatPrice(marketPrice || currentPrice || 0)}
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</div>
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</div>
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{analysis?.recommendation && (
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<div className="mt-2 text-sm text-cyan-400">
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AI Recommendation: {analysis.recommendation}
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</div>
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)}
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</div>
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{/* Input Controls */}
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<div className="grid grid-cols-1 md:grid-cols-2 gap-6 mb-6">
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{/* Investment Amount */}
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<div>
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<label className="block text-sm font-medium text-gray-300 mb-2">
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Investment Amount ($)
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</label>
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<input
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type="number"
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value={investmentAmount}
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onChange={(e) => setInvestmentAmount(Number(e.target.value))}
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className="w-full px-3 py-2 bg-gray-700 border border-gray-600 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-blue-500"
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min="1"
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step="1"
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/>
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</div>
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{/* Position Type */}
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<div>
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<label className="block text-sm font-medium text-gray-300 mb-2">
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Position Type
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{analysis?.recommendation && (
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<span className="ml-2 text-xs text-cyan-400">(Auto-detected from analysis)</span>
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)}
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</label>
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<div className="flex space-x-2">
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<button
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onClick={() => setPositionType('long')}
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className={`flex-1 px-3 py-2 rounded-lg text-sm font-medium transition-all ${
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positionType === 'long'
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? 'bg-green-600 text-white'
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: 'bg-gray-700 text-gray-300 hover:bg-gray-600'
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}`}
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>
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📈 Long
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</button>
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<button
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onClick={() => setPositionType('short')}
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className={`flex-1 px-3 py-2 rounded-lg text-sm font-medium transition-all ${
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positionType === 'short'
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? 'bg-red-600 text-white'
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: 'bg-gray-700 text-gray-300 hover:bg-gray-600'
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}`}
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>
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📉 Short
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</button>
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</div>
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</div>
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{/* Leverage Slider */}
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<div className="md:col-span-2">
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<label className="block text-sm font-medium text-gray-300 mb-2">
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Leverage: {leverage}x
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</label>
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<div className="relative">
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<input
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type="range"
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min="1"
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max="100"
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value={leverage}
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onChange={(e) => setLeverage(Number(e.target.value))}
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className="w-full h-2 bg-gray-700 rounded-lg appearance-none cursor-pointer slider"
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style={{
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background: `linear-gradient(to right, #10B981 0%, #10B981 ${leverage}%, #374151 ${leverage}%, #374151 100%)`
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}}
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/>
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<div className="flex justify-between text-xs text-gray-400 mt-1">
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<span>1x</span>
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<span>25x</span>
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<span>50x</span>
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<span>100x</span>
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</div>
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</div>
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</div>
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</div>
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{/* Advanced Settings */}
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{showAdvanced && (
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<div className="grid grid-cols-1 md:grid-cols-2 gap-4 mb-6 p-4 bg-gray-800/30 rounded-lg border border-gray-600">
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<div>
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<label className="block text-sm font-medium text-gray-300 mb-2">
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Trading Fee (%)
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</label>
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<input
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type="number"
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value={tradingFee}
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onChange={(e) => setTradingFee(Number(e.target.value))}
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className="w-full px-3 py-2 bg-gray-700 border border-gray-600 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-blue-500"
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min="0"
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max="1"
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step="0.01"
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/>
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</div>
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<div>
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<label className="block text-sm font-medium text-gray-300 mb-2">
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Maintenance Margin (%)
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</label>
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<input
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type="number"
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value={maintenanceMargin}
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onChange={(e) => setMaintenanceMargin(Number(e.target.value))}
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className="w-full px-3 py-2 bg-gray-700 border border-gray-600 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-blue-500"
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min="0.1"
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max="5"
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step="0.1"
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/>
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</div>
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</div>
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)}
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{/* Calculation Results */}
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{calculation && (
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<div className="space-y-4">
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{/* Position Summary */}
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<div className="grid grid-cols-1 md:grid-cols-3 gap-4">
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<div className="bg-gray-800/30 rounded-lg p-4 border border-gray-600">
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<div className="text-sm text-gray-400 mb-1">Position Size</div>
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<div className="text-lg font-bold text-white">
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{formatCurrency(calculation.positionSize)}
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</div>
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</div>
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<div className="bg-gray-800/30 rounded-lg p-4 border border-gray-600">
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<div className="text-sm text-gray-400 mb-1">Entry Price</div>
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<div className="text-lg font-bold text-white">
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${formatPrice(calculation.entryPrice)}
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</div>
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</div>
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<div className="bg-gray-800/30 rounded-lg p-4 border border-gray-600">
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<div className="text-sm text-gray-400 mb-1">Margin Required</div>
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<div className="text-lg font-bold text-white">
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{formatCurrency(calculation.marginRequired)}
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</div>
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</div>
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</div>
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{/* Risk Metrics */}
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<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
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<div className="bg-red-900/20 border border-red-700 rounded-lg p-4">
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<div className="text-sm text-red-400 mb-2">🚨 Risk Metrics</div>
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<div className="space-y-2">
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<div className="flex justify-between">
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<span className="text-gray-300">Stop Loss:</span>
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<span className="text-red-400 font-bold">${formatPrice(calculation.stopLoss)}</span>
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</div>
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<div className="flex justify-between">
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<span className="text-gray-300">Max Loss:</span>
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<span className="text-red-400 font-bold">{formatCurrency(calculation.maxLoss)}</span>
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</div>
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<div className="flex justify-between">
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<span className="text-gray-300">Liquidation:</span>
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<span className="text-red-500 font-bold">${formatPrice(calculation.liquidationPrice)}</span>
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</div>
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</div>
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</div>
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<div className="bg-green-900/20 border border-green-700 rounded-lg p-4">
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<div className="text-sm text-green-400 mb-2">💰 Profit Potential</div>
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<div className="space-y-2">
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<div className="flex justify-between">
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<span className="text-gray-300">Take Profit:</span>
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<span className="text-green-400 font-bold">${formatPrice(calculation.takeProfit)}</span>
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</div>
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<div className="flex justify-between">
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<span className="text-gray-300">Max Profit:</span>
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<span className="text-green-400 font-bold">{formatCurrency(calculation.maxProfit)}</span>
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</div>
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<div className="flex justify-between">
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<span className="text-gray-300">Risk/Reward:</span>
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<span className="text-green-400 font-bold">1:{calculation.riskRewardRatio.toFixed(2)}</span>
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</div>
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</div>
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</div>
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</div>
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{/* Fee Breakdown */}
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<div className="bg-gray-800/30 rounded-lg p-4 border border-gray-600">
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<div className="text-sm text-gray-400 mb-2">💸 Fee Breakdown</div>
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<div className="grid grid-cols-1 md:grid-cols-3 gap-4">
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<div className="flex justify-between">
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<span className="text-gray-300">Trading Fee:</span>
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<span className="text-yellow-400">{formatCurrency(calculation.tradingFee)}</span>
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</div>
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<div className="flex justify-between">
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<span className="text-gray-300">Net Investment:</span>
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<span className="text-white font-bold">{formatCurrency(calculation.netInvestment)}</span>
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</div>
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<div className="flex justify-between">
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<span className="text-gray-300">Leverage:</span>
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<span className="text-blue-400 font-bold">{leverage}x</span>
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</div>
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</div>
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</div>
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{/* Risk Warning */}
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{leverage > 50 && (
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<div className="bg-red-900/30 border border-red-600 rounded-lg p-4">
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<div className="flex items-center space-x-2">
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<span className="text-red-400 text-lg">⚠️</span>
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<span className="text-red-400 font-bold">High Leverage Warning</span>
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</div>
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<p className="text-red-300 text-sm mt-2">
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Using {leverage}x leverage is extremely risky. A small price movement against your position could result in liquidation.
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</p>
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</div>
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)}
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</div>
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)}
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<style jsx>{`
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.slider::-webkit-slider-thumb {
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appearance: none;
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height: 20px;
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width: 20px;
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border-radius: 50%;
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background: #10B981;
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cursor: pointer;
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border: 2px solid #065F46;
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box-shadow: 0 0 0 1px #065F46;
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}
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.slider::-moz-range-thumb {
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height: 20px;
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width: 20px;
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border-radius: 50%;
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background: #10B981;
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cursor: pointer;
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border: 2px solid #065F46;
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box-shadow: 0 0 0 1px #065F46;
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}
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`}</style>
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</div>
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)
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}
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