Juergen Kunz
d384c1d79b
- Update test.invoices.nanonets.ts to use DualAgentOrchestrator for JSON extraction - Enable streaming token callback for real-time progress visibility - Add markdown caching to avoid re-running Nanonets OCR for cached files - Update test.bankstatements.minicpm.ts and test.invoices.minicpm.ts with streaming - Update dependencies to @push.rocks/smartai@0.11.1 and @push.rocks/smartagent@1.2.8
561 lines
18 KiB
TypeScript
561 lines
18 KiB
TypeScript
/**
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* Invoice extraction test using MiniCPM-V (visual extraction)
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*
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* Consensus approach:
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* 1. Pass 1: Fast JSON extraction
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* 2. Pass 2: Confirm with thinking enabled
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* 3. If mismatch: repeat until consensus or max attempts
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*/
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import { tap, expect } from '@git.zone/tstest/tapbundle';
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import * as fs from 'fs';
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import * as path from 'path';
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import { execSync } from 'child_process';
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import * as os from 'os';
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import { ensureMiniCpm } from './helpers/docker.js';
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const OLLAMA_URL = 'http://localhost:11434';
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const MODEL = 'openbmb/minicpm-v4.5:q8_0';
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interface IInvoice {
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invoice_number: string;
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invoice_date: string;
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vendor_name: string;
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currency: string;
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net_amount: number;
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vat_amount: number;
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total_amount: number;
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}
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/**
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* Convert PDF to PNG images using ImageMagick
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*/
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function convertPdfToImages(pdfPath: string): string[] {
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const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'pdf-convert-'));
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const outputPattern = path.join(tempDir, 'page-%d.png');
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try {
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execSync(
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`convert -density 300 -quality 95 "${pdfPath}" -background white -alpha remove "${outputPattern}"`,
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{ stdio: 'pipe' }
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);
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const files = fs.readdirSync(tempDir).filter((f) => f.endsWith('.png')).sort();
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const images: string[] = [];
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for (const file of files) {
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const imagePath = path.join(tempDir, file);
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const imageData = fs.readFileSync(imagePath);
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images.push(imageData.toString('base64'));
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}
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return images;
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} finally {
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fs.rmSync(tempDir, { recursive: true, force: true });
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}
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}
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const JSON_PROMPT = `Extract invoice data from this image. Return ONLY a JSON object with these exact fields:
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{
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"invoice_number": "the invoice number (not VAT ID, not customer ID)",
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"invoice_date": "YYYY-MM-DD format",
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"vendor_name": "company that issued the invoice",
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"currency": "EUR, USD, or GBP",
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"net_amount": 0.00,
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"vat_amount": 0.00,
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"total_amount": 0.00
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}
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Return only the JSON, no explanation.`;
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/**
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* Query MiniCPM-V for JSON output (fast, no thinking) with streaming
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*/
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async function queryJsonFast(images: string[]): Promise<string> {
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const startTime = Date.now();
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process.stdout.write(` [Fast] `);
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const response = await fetch(`${OLLAMA_URL}/api/chat`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({
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model: MODEL,
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messages: [{
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role: 'user',
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content: JSON_PROMPT,
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images: images,
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}],
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stream: true,
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options: {
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num_ctx: 32768,
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num_predict: 1000,
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temperature: 0.1,
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},
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}),
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});
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if (!response.ok) {
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throw new Error(`Ollama API error: ${response.status}`);
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}
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let content = '';
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const reader = response.body!.getReader();
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const decoder = new TextDecoder();
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try {
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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const chunk = decoder.decode(value, { stream: true });
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for (const line of chunk.split('\n').filter(l => l.trim())) {
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try {
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const json = JSON.parse(line);
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const token = json.message?.content || '';
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if (token) {
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process.stdout.write(token);
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content += token;
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}
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} catch {
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// Ignore parse errors for partial chunks
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}
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}
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}
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} finally {
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const elapsed = ((Date.now() - startTime) / 1000).toFixed(1);
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process.stdout.write(` (${elapsed}s)\n`);
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}
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return content.trim();
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}
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/**
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* Query MiniCPM-V for JSON output with thinking enabled (slower, more accurate) with streaming
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*/
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async function queryJsonWithThinking(images: string[]): Promise<string> {
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const startTime = Date.now();
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process.stdout.write(` [Think] `);
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const response = await fetch(`${OLLAMA_URL}/api/chat`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({
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model: MODEL,
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messages: [{
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role: 'user',
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content: `Think carefully about this invoice image, then ${JSON_PROMPT}`,
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images: images,
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}],
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stream: true,
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options: {
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num_ctx: 32768,
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num_predict: 2000,
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temperature: 0.1,
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},
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}),
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});
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if (!response.ok) {
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throw new Error(`Ollama API error: ${response.status}`);
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}
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let content = '';
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let thinkingContent = '';
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let thinkingStarted = false;
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let outputStarted = false;
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const reader = response.body!.getReader();
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const decoder = new TextDecoder();
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try {
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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const chunk = decoder.decode(value, { stream: true });
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for (const line of chunk.split('\n').filter(l => l.trim())) {
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try {
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const json = JSON.parse(line);
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// Stream thinking tokens
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const thinking = json.message?.thinking || '';
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if (thinking) {
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if (!thinkingStarted) {
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process.stdout.write(`THINKING: `);
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thinkingStarted = true;
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}
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process.stdout.write(thinking);
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thinkingContent += thinking;
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}
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// Stream content tokens
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const token = json.message?.content || '';
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if (token) {
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if (!outputStarted) {
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if (thinkingStarted) process.stdout.write('\n [Think] ');
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process.stdout.write(`OUTPUT: `);
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outputStarted = true;
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}
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process.stdout.write(token);
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content += token;
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}
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} catch {
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// Ignore parse errors for partial chunks
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}
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}
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}
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} finally {
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const elapsed = ((Date.now() - startTime) / 1000).toFixed(1);
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process.stdout.write(` (${elapsed}s)\n`);
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}
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return content.trim();
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}
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/**
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* Parse amount from string (handles European format)
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*/
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function parseAmount(s: string | number | undefined): number {
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if (s === undefined || s === null) return 0;
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if (typeof s === 'number') return s;
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const match = s.match(/([\d.,]+)/);
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if (!match) return 0;
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const numStr = match[1];
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// Handle European format: 1.234,56 → 1234.56
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const normalized = numStr.includes(',') && numStr.indexOf(',') > numStr.lastIndexOf('.')
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? numStr.replace(/\./g, '').replace(',', '.')
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: numStr.replace(/,/g, '');
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return parseFloat(normalized) || 0;
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}
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/**
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* Extract invoice number from potentially verbose response
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*/
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function extractInvoiceNumber(s: string | undefined): string {
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if (!s) return '';
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let clean = s.replace(/\*\*/g, '').replace(/`/g, '').trim();
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const patterns = [
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/\b([A-Z]{2,3}\d{10,})\b/i, // IEE2022006460244
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/\b([A-Z]\d{8,})\b/i, // R0014359508
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/\b(INV[-\s]?\d{4}[-\s]?\d+)\b/i, // INV-2024-001
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/\b(\d{7,})\b/, // 1579087430
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];
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for (const pattern of patterns) {
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const match = clean.match(pattern);
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if (match) return match[1];
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}
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return clean.replace(/[^A-Z0-9-]/gi, '').trim() || clean;
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}
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/**
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* Extract date (YYYY-MM-DD) from response
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*/
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function extractDate(s: string | undefined): string {
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if (!s) return '';
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let clean = s.replace(/\*\*/g, '').replace(/`/g, '').trim();
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const isoMatch = clean.match(/(\d{4}-\d{2}-\d{2})/);
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if (isoMatch) return isoMatch[1];
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// Try DD/MM/YYYY or DD.MM.YYYY
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const dmyMatch = clean.match(/(\d{1,2})[\/.](\d{1,2})[\/.](\d{4})/);
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if (dmyMatch) {
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return `${dmyMatch[3]}-${dmyMatch[2].padStart(2, '0')}-${dmyMatch[1].padStart(2, '0')}`;
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}
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return clean.replace(/[^\d-]/g, '').trim();
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}
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/**
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* Extract currency
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*/
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function extractCurrency(s: string | undefined): string {
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if (!s) return 'EUR';
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const upper = s.toUpperCase();
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if (upper.includes('EUR') || upper.includes('€')) return 'EUR';
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if (upper.includes('USD') || upper.includes('$')) return 'USD';
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if (upper.includes('GBP') || upper.includes('£')) return 'GBP';
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return 'EUR';
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}
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/**
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* Extract JSON from response (handles markdown code blocks)
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*/
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function extractJsonFromResponse(response: string): Record<string, unknown> | null {
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// Try to find JSON in markdown code block
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const codeBlockMatch = response.match(/```(?:json)?\s*([\s\S]*?)```/);
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const jsonStr = codeBlockMatch ? codeBlockMatch[1].trim() : response.trim();
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try {
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return JSON.parse(jsonStr);
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} catch {
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// Try to find JSON object pattern
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const jsonMatch = jsonStr.match(/\{[\s\S]*\}/);
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if (jsonMatch) {
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try {
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return JSON.parse(jsonMatch[0]);
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} catch {
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return null;
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}
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}
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return null;
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}
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}
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/**
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* Parse JSON response into IInvoice
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*/
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function parseJsonToInvoice(response: string): IInvoice | null {
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const parsed = extractJsonFromResponse(response);
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if (!parsed) return null;
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return {
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invoice_number: extractInvoiceNumber(String(parsed.invoice_number || '')),
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invoice_date: extractDate(String(parsed.invoice_date || '')),
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vendor_name: String(parsed.vendor_name || '').replace(/\*\*/g, '').replace(/`/g, '').trim(),
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currency: extractCurrency(String(parsed.currency || '')),
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net_amount: parseAmount(parsed.net_amount as string | number),
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vat_amount: parseAmount(parsed.vat_amount as string | number),
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total_amount: parseAmount(parsed.total_amount as string | number),
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};
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}
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/**
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* Compare two invoices for consensus (key fields must match)
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*/
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function invoicesMatch(a: IInvoice, b: IInvoice): boolean {
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const numMatch = a.invoice_number.toLowerCase() === b.invoice_number.toLowerCase();
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const dateMatch = a.invoice_date === b.invoice_date;
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const totalMatch = Math.abs(a.total_amount - b.total_amount) < 0.02;
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return numMatch && dateMatch && totalMatch;
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}
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/**
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* Extract invoice data using consensus approach:
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* 1. Pass 1: Fast JSON extraction
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* 2. Pass 2: Confirm with thinking enabled
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* 3. If mismatch: repeat until consensus or max 5 attempts
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*/
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async function extractInvoiceFromImages(images: string[]): Promise<IInvoice> {
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console.log(` [Vision] Processing ${images.length} page(s) with ${MODEL} (consensus)`);
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const MAX_ATTEMPTS = 5;
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let attempt = 0;
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while (attempt < MAX_ATTEMPTS) {
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attempt++;
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console.log(` [Attempt ${attempt}/${MAX_ATTEMPTS}]`);
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// PASS 1: Fast JSON extraction
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console.log(` [Pass 1] Fast extraction...`);
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const fastResponse = await queryJsonFast(images);
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const fastInvoice = parseJsonToInvoice(fastResponse);
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if (!fastInvoice) {
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console.log(` [Pass 1] JSON parsing failed, retrying...`);
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continue;
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}
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console.log(` [Pass 1] Result: ${fastInvoice.invoice_number} | ${fastInvoice.invoice_date} | ${fastInvoice.total_amount} ${fastInvoice.currency}`);
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// PASS 2: Confirm with thinking
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console.log(` [Pass 2] Thinking confirmation...`);
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const thinkResponse = await queryJsonWithThinking(images);
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const thinkInvoice = parseJsonToInvoice(thinkResponse);
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if (!thinkInvoice) {
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console.log(` [Pass 2] JSON parsing failed, retrying...`);
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continue;
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}
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console.log(` [Pass 2] Result: ${thinkInvoice.invoice_number} | ${thinkInvoice.invoice_date} | ${thinkInvoice.total_amount} ${thinkInvoice.currency}`);
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// Check consensus
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if (invoicesMatch(fastInvoice, thinkInvoice)) {
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console.log(` [Consensus] MATCH - using result`);
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return thinkInvoice; // Prefer thinking result
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}
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console.log(` [Consensus] MISMATCH - repeating...`);
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console.log(` Fast: ${fastInvoice.invoice_number} | ${fastInvoice.invoice_date} | ${fastInvoice.total_amount}`);
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console.log(` Think: ${thinkInvoice.invoice_number} | ${thinkInvoice.invoice_date} | ${thinkInvoice.total_amount}`);
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}
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// Max attempts reached - do one final thinking pass and use that
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console.log(` [Final] Max attempts reached, using final thinking pass`);
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const finalResponse = await queryJsonWithThinking(images);
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const finalInvoice = parseJsonToInvoice(finalResponse);
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if (finalInvoice) {
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console.log(` [Final] Result: ${finalInvoice.invoice_number} | ${finalInvoice.invoice_date} | ${finalInvoice.total_amount} ${finalInvoice.currency}`);
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return finalInvoice;
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}
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// Return empty invoice if all else fails
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console.log(` [Final] All parsing failed, returning empty`);
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return {
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invoice_number: '',
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invoice_date: '',
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vendor_name: '',
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currency: 'EUR',
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net_amount: 0,
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vat_amount: 0,
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total_amount: 0,
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};
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}
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/**
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* Normalize date to YYYY-MM-DD
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*/
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function normalizeDate(dateStr: string | null): string {
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if (!dateStr) return '';
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if (/^\d{4}-\d{2}-\d{2}$/.test(dateStr)) return dateStr;
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const monthMap: Record<string, string> = {
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JAN: '01', FEB: '02', MAR: '03', APR: '04', MAY: '05', JUN: '06',
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JUL: '07', AUG: '08', SEP: '09', OCT: '10', NOV: '11', DEC: '12',
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};
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let match = dateStr.match(/^(\d{1,2})-([A-Z]{3})-(\d{4})$/i);
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if (match) {
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return `${match[3]}-${monthMap[match[2].toUpperCase()] || '01'}-${match[1].padStart(2, '0')}`;
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}
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match = dateStr.match(/^(\d{1,2})[\/.](\d{1,2})[\/.](\d{4})$/);
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if (match) {
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return `${match[3]}-${match[2].padStart(2, '0')}-${match[1].padStart(2, '0')}`;
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}
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return dateStr;
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}
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/**
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* Compare extracted invoice against expected
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*/
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function compareInvoice(
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extracted: IInvoice,
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expected: IInvoice
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): { match: boolean; errors: string[] } {
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const errors: string[] = [];
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// Compare invoice number (normalize by removing spaces and case)
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const extNum = extracted.invoice_number?.replace(/\s/g, '').toLowerCase() || '';
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const expNum = expected.invoice_number?.replace(/\s/g, '').toLowerCase() || '';
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if (extNum !== expNum) {
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errors.push(`invoice_number: expected "${expected.invoice_number}", got "${extracted.invoice_number}"`);
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}
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// Compare date
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if (normalizeDate(extracted.invoice_date) !== normalizeDate(expected.invoice_date)) {
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errors.push(`invoice_date: expected "${expected.invoice_date}", got "${extracted.invoice_date}"`);
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}
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// Compare total amount (with tolerance)
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if (Math.abs(extracted.total_amount - expected.total_amount) > 0.02) {
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errors.push(`total_amount: expected ${expected.total_amount}, got ${extracted.total_amount}`);
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}
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// Compare currency
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if (extracted.currency?.toUpperCase() !== expected.currency?.toUpperCase()) {
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errors.push(`currency: expected "${expected.currency}", got "${extracted.currency}"`);
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}
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return { match: errors.length === 0, errors };
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}
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/**
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* Find all test cases (PDF + JSON pairs) in .nogit/invoices/
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*/
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function findTestCases(): Array<{ name: string; pdfPath: string; jsonPath: string }> {
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const testDir = path.join(process.cwd(), '.nogit/invoices');
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if (!fs.existsSync(testDir)) {
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return [];
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}
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const files = fs.readdirSync(testDir);
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const pdfFiles = files.filter((f) => f.endsWith('.pdf'));
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const testCases: Array<{ name: string; pdfPath: string; jsonPath: string }> = [];
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for (const pdf of pdfFiles) {
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const baseName = pdf.replace('.pdf', '');
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const jsonFile = `${baseName}.json`;
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if (files.includes(jsonFile)) {
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testCases.push({
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name: baseName,
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pdfPath: path.join(testDir, pdf),
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jsonPath: path.join(testDir, jsonFile),
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});
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}
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}
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testCases.sort((a, b) => a.name.localeCompare(b.name));
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return testCases;
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}
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// Tests
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tap.test('setup: ensure Docker containers are running', async () => {
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console.log('\n[Setup] Checking Docker containers...\n');
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const minicpmOk = await ensureMiniCpm();
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expect(minicpmOk).toBeTrue();
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console.log('\n[Setup] All containers ready!\n');
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});
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tap.test('should have MiniCPM-V model loaded', async () => {
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const response = await fetch(`${OLLAMA_URL}/api/tags`);
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const data = await response.json();
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const modelNames = data.models.map((m: { name: string }) => m.name);
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expect(modelNames.some((name: string) => name.includes('minicpm'))).toBeTrue();
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});
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const testCases = findTestCases();
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console.log(`\nFound ${testCases.length} invoice test cases (MiniCPM-V)\n`);
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|
|
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let passedCount = 0;
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let failedCount = 0;
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const processingTimes: number[] = [];
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|
|
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for (const testCase of testCases) {
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tap.test(`should extract invoice: ${testCase.name}`, async () => {
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const expected: IInvoice = JSON.parse(fs.readFileSync(testCase.jsonPath, 'utf-8'));
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console.log(`\n=== ${testCase.name} ===`);
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console.log(`Expected: ${expected.invoice_number} | ${expected.invoice_date} | ${expected.total_amount} ${expected.currency}`);
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|
|
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const startTime = Date.now();
|
|
const images = convertPdfToImages(testCase.pdfPath);
|
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console.log(` Pages: ${images.length}`);
|
|
|
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const extracted = await extractInvoiceFromImages(images);
|
|
console.log(` Extracted: ${extracted.invoice_number} | ${extracted.invoice_date} | ${extracted.total_amount} ${extracted.currency}`);
|
|
|
|
const elapsedMs = Date.now() - startTime;
|
|
processingTimes.push(elapsedMs);
|
|
|
|
const result = compareInvoice(extracted, expected);
|
|
|
|
if (result.match) {
|
|
passedCount++;
|
|
console.log(` Result: MATCH (${(elapsedMs / 1000).toFixed(1)}s)`);
|
|
} else {
|
|
failedCount++;
|
|
console.log(` Result: MISMATCH (${(elapsedMs / 1000).toFixed(1)}s)`);
|
|
result.errors.forEach((e) => console.log(` - ${e}`));
|
|
}
|
|
|
|
expect(result.match).toBeTrue();
|
|
});
|
|
}
|
|
|
|
tap.test('summary', async () => {
|
|
const totalInvoices = testCases.length;
|
|
const accuracy = totalInvoices > 0 ? (passedCount / totalInvoices) * 100 : 0;
|
|
const totalTimeMs = processingTimes.reduce((a, b) => a + b, 0);
|
|
const avgTimeSec = processingTimes.length > 0 ? totalTimeMs / processingTimes.length / 1000 : 0;
|
|
|
|
console.log(`\n========================================`);
|
|
console.log(` Invoice Extraction Summary (${MODEL})`);
|
|
console.log(`========================================`);
|
|
console.log(` Method: Consensus (fast + thinking)`);
|
|
console.log(` Passed: ${passedCount}/${totalInvoices}`);
|
|
console.log(` Failed: ${failedCount}/${totalInvoices}`);
|
|
console.log(` Accuracy: ${accuracy.toFixed(1)}%`);
|
|
console.log(`----------------------------------------`);
|
|
console.log(` Total time: ${(totalTimeMs / 1000).toFixed(1)}s`);
|
|
console.log(` Avg per inv: ${avgTimeSec.toFixed(1)}s`);
|
|
console.log(`========================================\n`);
|
|
});
|
|
|
|
export default tap.start();
|