rpg-mcp

import { CalculationResult, ExportFormat } from './schemas.js'; import nerdamer from 'nerdamer'; export class ExportEngine { export(result: CalculationResult, format: ExportFormat): string { switch (format) { case 'latex': return this.toLatex(result); case 'mathml': return this.toMathML(result); case 'plaintext': return this.toPlaintext(result); case 'steps': return this.toSteps(result); case 'json': return JSON.stringify(result); default: throw new Error(`Unsupported export format: ${format}`); } } private toLatex(result: CalculationResult): string { // If result is algebraic string, try to convert to latex using nerdamer if (typeof result.result === 'string' && !result.result.startsWith('{')) { try { return nerdamer(result.result).toTeX(); } catch { return result.result; } } return String(result.result); } private toMathML(result: CalculationResult): string { // Basic MathML wrapper or use nerdamer if possible (nerdamer doesn't do MathML natively easily without plugin?) // Actually nerdamer doesn't have toMathML. // Let's do a very basic wrapper or just return plaintext in math tags for now. // Or we can assume it's simple. return `<math xmlns="http://www.w3.org/1998/Math/MathML"><mtext>${result.result}</mtext></math>`; } private toPlaintext(result: CalculationResult): string { return String(result.result); } private toSteps(result: CalculationResult): string { const header = `Input: ${result.input}\nResult: ${result.result}\n\nSteps:\n`; const steps = result.steps.map((s, i) => `${i + 1}. ${s}`).join('\n'); return header + steps; } }