Midnight MCP Server

/* istanbul ignore file */ /** * Utility functions for wallet operations */ /** * Converts a decimal amount string to a BigInt value by multiplying by the specified decimal factor * This provides configurable decimal places of precision while storing values as integers * * @param decimalAmount String representing a decimal amount (e.g., "12.345678") * @param decimals Number of decimal places (default: 6) * @returns BigInt value with decimals removed (e.g., 12345678n for 6 decimals) */ export function convertDecimalToBigInt(decimalAmount: string, decimals: number = 6): bigint { if (!decimalAmount) { throw new Error('Amount must be provided'); } // Check if the string represents a valid number with up to the specified decimals const decimalRegex = new RegExp(`^\\d+(\\.\\d{1,${decimals}})?$`); if (!decimalRegex.test(decimalAmount)) { throw new Error(`Amount must be a valid decimal number with up to ${decimals} decimal places`); } // Calculate the decimal factor (10^decimals) const decimalFactor = BigInt(10 ** decimals); // Convert string to BigInt, handling decimal places let amountBigInt: bigint; if (decimalAmount.includes('.')) { const [wholePart, decimalPart] = decimalAmount.split('.'); // Pad with zeros to ensure uniform precision and take only up to specified decimals const paddedDecimal = decimalPart.padEnd(decimals, '0').substring(0, decimals); // Convert whole and decimal parts separately and combine amountBigInt = BigInt(wholePart) * decimalFactor + BigInt(paddedDecimal); } else { // No decimal point, just multiply by decimal factor amountBigInt = BigInt(decimalAmount) * decimalFactor; } return amountBigInt; } /** * Converts a BigInt value back to a decimal string with proper decimal places * * @param bigIntAmount BigInt value (e.g., 12345678n) * @param decimals Number of decimal places (default: 6) * @returns String with decimal representation (e.g., "12.345678") */ export function convertBigIntToDecimal(bigIntAmount: bigint, decimals: number = 6): string { const amountString = bigIntAmount.toString().padStart(decimals + 1, '0'); // Ensure at least decimals+1 digits // Extract whole and decimal parts const wholePart = amountString.slice(0, -decimals) || '0'; // Default to 0 if empty const decimalPart = amountString.slice(-decimals).replace(/0+$/, ''); // Remove trailing zeros if (decimalPart) { return `${wholePart}.${decimalPart}`; } else { return wholePart; } }