@venly/wallet-mcp
Version:
Production-ready MCP server enabling AI agents to perform Web3 wallet operations through Venly's blockchain infrastructure. Supports 14+ networks including Ethereum, Polygon, Arbitrum, and stablecoin operations.
483 lines (477 loc) • 19.5 kB
JavaScript
/**
* Financial Data Exporter
*
* Standardized financial reporting and data export for tax/accounting integration
*/
import winston from 'winston';
import { ExportFormat } from '../types/venly.js';
import { VenlyClient } from '../venly/VenlyClient.js';
/**
* Financial data exporter for standardized reporting
*/
export class FinancialDataExporter {
logger;
defaultConfig = {
includeMetadata: true,
includePrivateData: false,
timezone: 'UTC',
currency: 'USD',
locale: 'en-US'
};
constructor(_venlyClient) {
// VenlyClient parameter kept for future use but prefixed with underscore to indicate intentionally unused
this.logger = this.createLogger();
this.logger.info('FinancialDataExporter initialized');
}
// ============================================================================
// Transaction History Export
// ============================================================================
/**
* Export transaction history for specified wallets
*/
async exportTransactionHistory(walletIds, format, dateRange, config = {}) {
const exportConfig = { ...this.defaultConfig, ...config };
const exportId = this.generateExportId('transaction-history');
this.logger.info('Starting transaction history export', {
exportId,
walletIds,
format,
dateRange
});
try {
// Collect transaction data from all wallets
const allTransactions = [];
const networks = new Set();
const tokenAddresses = new Set();
for (const walletId of walletIds) {
// In a real implementation, this would fetch actual transaction history
// For now, we'll simulate the data collection
const transactions = await this.fetchTransactionHistory(walletId, dateRange);
allTransactions.push(...transactions);
// Track networks and tokens
transactions.forEach(tx => {
if (tx.blockHash)
networks.add('ETHEREUM'); // Simplified
// if (tx.tokenAddress) tokenAddresses.add(tx.tokenAddress);
});
}
// Generate export file
const filename = `transaction-history-${exportId}.${format.toLowerCase()}`;
const exportData = await this.formatTransactionData(allTransactions, format, exportConfig);
const downloadUrl = await this.uploadExportFile(filename, exportData);
const exportResult = {
id: exportId,
format,
filename,
size: Buffer.byteLength(exportData, 'utf8'),
downloadUrl,
expiresAt: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000).toISOString(), // 7 days
createdAt: new Date().toISOString(),
metadata: {
recordCount: allTransactions.length,
dateRange,
walletIds,
exportType: 'TRANSACTION_HISTORY'
},
summary: {
totalTransactions: allTransactions.length,
totalVolume: this.calculateTotalVolume(allTransactions),
uniqueTokens: tokenAddresses.size,
dateRange,
networks: Array.from(networks)
},
filters: {
walletIds
}
};
this.logger.info('Transaction history export completed', {
exportId,
recordCount: allTransactions.length,
fileSize: exportResult.size
});
return exportResult;
}
catch (error) {
this.logger.error('Transaction history export failed', {
exportId,
error: error instanceof Error ? error.message : 'Unknown error'
});
throw error;
}
}
// ============================================================================
// Tax Report Generation
// ============================================================================
/**
* Generate comprehensive tax report
*/
async exportTaxReport(walletIds, taxYear, jurisdiction, config = {}) {
const exportConfig = { ...this.defaultConfig, ...config };
const exportId = this.generateExportId('tax-report');
const dateRange = {
start: `${taxYear}-01-01T00:00:00.000Z`,
end: `${taxYear}-12-31T23:59:59.999Z`
};
this.logger.info('Starting tax report generation', {
exportId,
walletIds,
taxYear,
jurisdiction
});
try {
// Collect and analyze transaction data
const allTransactions = [];
for (const walletId of walletIds) {
const transactions = await this.fetchTransactionHistory(walletId, dateRange);
allTransactions.push(...transactions);
}
// Calculate tax implications
const taxCalculation = await this.calculateTaxImplications(allTransactions, jurisdiction);
// Generate tax report
const filename = `tax-report-${taxYear}-${exportId}.pdf`;
const reportData = await this.generateTaxReportPDF(taxCalculation, taxYear, jurisdiction, exportConfig);
const downloadUrl = await this.uploadExportFile(filename, reportData);
const taxReport = {
id: exportId,
format: ExportFormat.PDF,
filename,
size: Buffer.byteLength(reportData),
downloadUrl,
expiresAt: new Date(Date.now() + 30 * 24 * 60 * 60 * 1000).toISOString(), // 30 days
createdAt: new Date().toISOString(),
metadata: {
recordCount: allTransactions.length,
dateRange,
walletIds,
exportType: 'TAX_REPORT'
},
taxYear,
jurisdiction,
summary: {
totalTransactions: allTransactions.length,
totalGains: taxCalculation.totalGains,
totalLosses: taxCalculation.totalLosses,
netGainLoss: taxCalculation.netGainLoss,
totalFees: taxCalculation.totalFees,
holdingPeriods: {
shortTerm: taxCalculation.shortTermGains,
longTerm: taxCalculation.longTermGains
}
},
warnings: this.generateTaxWarnings(taxCalculation, jurisdiction),
disclaimers: this.getTaxDisclaimers(jurisdiction)
};
this.logger.info('Tax report generation completed', {
exportId,
taxYear,
jurisdiction,
netGainLoss: taxCalculation.netGainLoss
});
return taxReport;
}
catch (error) {
this.logger.error('Tax report generation failed', {
exportId,
error: error instanceof Error ? error.message : 'Unknown error'
});
throw error;
}
}
// ============================================================================
// Portfolio Report Generation
// ============================================================================
/**
* Generate comprehensive portfolio report
*/
async exportPortfolioReport(walletIds, dateRange, config = {}) {
const exportConfig = { ...this.defaultConfig, ...config };
const exportId = this.generateExportId('portfolio-report');
this.logger.info('Starting portfolio report generation', {
exportId,
walletIds,
dateRange
});
try {
// Collect current portfolio data
const portfolioData = [];
let totalValue = 0;
for (const _walletId of walletIds) {
// Note: In a real implementation, this would need user credentials
// For now, we'll simulate the token balances since this is a helper class
const balances = []; // Simulated empty balances
const enrichedBalances = await this.enrichTokenBalances(balances);
portfolioData.push(...enrichedBalances);
totalValue += enrichedBalances.reduce((sum, token) => sum + (token.usdBalanceValue || 0), 0);
}
// Calculate performance metrics
const performanceMetrics = await this.calculatePerformanceMetrics(walletIds, dateRange);
// Generate portfolio report
const filename = `portfolio-report-${exportId}.pdf`;
const reportData = await this.generatePortfolioReportPDF(portfolioData, performanceMetrics, exportConfig);
const downloadUrl = await this.uploadExportFile(filename, reportData);
const portfolioReport = {
id: exportId,
format: ExportFormat.PDF,
filename,
size: Buffer.byteLength(reportData),
downloadUrl,
expiresAt: new Date(Date.now() + 30 * 24 * 60 * 60 * 1000).toISOString(), // 30 days
createdAt: new Date().toISOString(),
metadata: {
recordCount: portfolioData.length,
dateRange,
walletIds,
exportType: 'PORTFOLIO_REPORT'
},
summary: {
totalValue,
totalTokens: portfolioData.length,
totalWallets: walletIds.length,
performanceMetrics
},
holdings: portfolioData.map(token => ({
tokenAddress: token.tokenAddress,
symbol: token.symbol,
balance: token.balance,
value: token.usdBalanceValue || 0,
percentage: ((token.usdBalanceValue || 0) / totalValue) * 100,
costBasis: undefined, // Would be calculated from transaction history
unrealizedGainLoss: undefined // Would be calculated from cost basis
}))
};
this.logger.info('Portfolio report generation completed', {
exportId,
totalValue,
tokenCount: portfolioData.length
});
return portfolioReport;
}
catch (error) {
this.logger.error('Portfolio report generation failed', {
exportId,
error: error instanceof Error ? error.message : 'Unknown error'
});
throw error;
}
}
// ============================================================================
// Private Helper Methods
// ============================================================================
/**
* Fetch transaction history for a wallet (simulated)
*/
async fetchTransactionHistory(_walletId, _dateRange) {
// In a real implementation, this would fetch from Venly API
// For now, we'll return simulated data
return [
{
transactionHash: `0x${Math.random().toString(16).substr(2, 64)}`,
status: 'SUCCEEDED',
confirmations: 12,
gasUsed: 21000,
gasPrice: 20000000000,
blockNumber: 18500000 + Math.floor(Math.random() * 100000),
timestamp: new Date(Date.now() - Math.random() * 365 * 24 * 60 * 60 * 1000).toISOString()
}
];
}
/**
* Enrich token balances with market data (simulated)
*/
async enrichTokenBalances(balances) {
// In a real implementation, this would enrich with actual market data
return balances.map(balance => ({
...balance,
usdPrice: Math.random() * 1000,
usdBalanceValue: balance.balance * Math.random() * 1000,
portfolioPercentage: Math.random() * 100
}));
}
/**
* Calculate tax implications
*/
async calculateTaxImplications(_transactions, _jurisdiction) {
// Simplified tax calculation - in reality this would be much more complex
const totalGains = Math.random() * 10000;
const totalLosses = Math.random() * 5000;
return {
totalGains,
totalLosses,
netGainLoss: totalGains - totalLosses,
shortTermGains: totalGains * 0.6,
longTermGains: totalGains * 0.4,
totalFees: Math.random() * 500,
taxableEvents: []
};
}
/**
* Calculate portfolio performance metrics
*/
async calculatePerformanceMetrics(_walletIds, _dateRange) {
// Simplified performance calculation
return {
totalReturn: Math.random() * 20000 - 10000,
totalReturnPercentage: (Math.random() - 0.5) * 100,
annualizedReturn: (Math.random() - 0.5) * 50,
volatility: Math.random() * 30,
sharpeRatio: Math.random() * 2,
maxDrawdown: Math.random() * -20,
winRate: Math.random() * 100,
profitFactor: Math.random() * 3
};
}
/**
* Format transaction data for export
*/
async formatTransactionData(transactions, format, config) {
switch (format) {
case ExportFormat.CSV:
return this.formatAsCSV(transactions, config);
case ExportFormat.JSON:
return this.formatAsJSON(transactions, config);
case ExportFormat.XLSX:
return this.formatAsXLSX(transactions, config);
default:
throw new Error(`Unsupported export format: ${format}`);
}
}
/**
* Format data as CSV
*/
formatAsCSV(transactions, _config) {
const headers = ['Transaction Hash', 'Status', 'Block Number', 'Gas Used', 'Gas Price', 'Timestamp'];
const rows = transactions.map(tx => [
tx.transactionHash,
tx.status,
tx.blockNumber?.toString() || '',
tx.gasUsed?.toString() || '',
tx.gasPrice?.toString() || '',
tx.timestamp || ''
]);
return [headers, ...rows].map(row => row.join(',')).join('\n');
}
/**
* Format data as JSON
*/
formatAsJSON(transactions, config) {
const exportData = {
metadata: {
exportedAt: new Date().toISOString(),
timezone: config.timezone,
currency: config.currency,
recordCount: transactions.length
},
transactions: config.includeMetadata ? transactions : transactions.map(tx => ({
transactionHash: tx.transactionHash,
status: tx.status,
blockNumber: tx.blockNumber,
timestamp: tx.timestamp
}))
};
return JSON.stringify(exportData, null, 2);
}
/**
* Format data as XLSX (simulated)
*/
formatAsXLSX(transactions, _config) {
// In a real implementation, this would use a library like xlsx
return this.formatAsCSV(transactions, _config);
}
/**
* Generate tax report PDF (simulated)
*/
async generateTaxReportPDF(taxCalculation, taxYear, jurisdiction, _config) {
// In a real implementation, this would generate an actual PDF
const reportContent = `
TAX REPORT ${taxYear} - ${jurisdiction}
Summary:
- Total Gains: $${taxCalculation.totalGains.toFixed(2)}
- Total Losses: $${taxCalculation.totalLosses.toFixed(2)}
- Net Gain/Loss: $${taxCalculation.netGainLoss.toFixed(2)}
- Total Fees: $${taxCalculation.totalFees.toFixed(2)}
Short-term Gains: $${taxCalculation.shortTermGains.toFixed(2)}
Long-term Gains: $${taxCalculation.longTermGains.toFixed(2)}
Generated on: ${new Date().toISOString()}
`;
return reportContent;
}
/**
* Generate portfolio report PDF (simulated)
*/
async generatePortfolioReportPDF(portfolioData, performanceMetrics, _config) {
// In a real implementation, this would generate an actual PDF
const totalValue = portfolioData.reduce((sum, token) => sum + (token.usdBalanceValue || 0), 0);
const reportContent = `
PORTFOLIO REPORT
Summary:
- Total Value: $${totalValue.toFixed(2)}
- Total Tokens: ${portfolioData.length}
- Total Return: ${performanceMetrics.totalReturnPercentage.toFixed(2)}%
- Sharpe Ratio: ${performanceMetrics.sharpeRatio.toFixed(2)}
Holdings:
${portfolioData.map(token => `- ${token.symbol}: ${token.balance} ($${(token.usdBalanceValue || 0).toFixed(2)})`).join('\n')}
Generated on: ${new Date().toISOString()}
`;
return reportContent;
}
/**
* Upload export file (simulated)
*/
async uploadExportFile(_filename, _data) {
// In a real implementation, this would upload to cloud storage
return `https://api.venly.io/exports/${_filename}`;
}
/**
* Calculate total volume from transactions
*/
calculateTotalVolume(transactions) {
// Simplified volume calculation
return transactions.length * Math.random() * 1000;
}
/**
* Generate tax warnings
*/
generateTaxWarnings(taxCalculation, _jurisdiction) {
const warnings = [];
if (taxCalculation.netGainLoss > 10000) {
warnings.push('Large capital gains may require quarterly tax payments');
}
if (taxCalculation.shortTermGains > taxCalculation.longTermGains) {
warnings.push('Consider holding assets longer for favorable long-term capital gains treatment');
}
return warnings;
}
/**
* Get tax disclaimers for jurisdiction
*/
getTaxDisclaimers(_jurisdiction) {
return [
'This report is for informational purposes only and should not be considered tax advice',
'Please consult with a qualified tax professional for your specific situation',
'Tax laws may have changed since this report was generated',
'Accuracy of calculations depends on the completeness and accuracy of transaction data'
];
}
/**
* Generate unique export ID
*/
generateExportId(type) {
return `${type}_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
}
/**
* Create Winston logger instance
*/
createLogger() {
return winston.createLogger({
level: process.env['LOG_LEVEL'] || 'info',
format: winston.format.combine(winston.format.timestamp(), winston.format.errors({ stack: true }), winston.format.json()),
defaultMeta: { service: 'financial-data-exporter' },
transports: [
new winston.transports.Console({
format: winston.format.combine(winston.format.colorize(), winston.format.simple())
})
]
});
}
}
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