feat: migrate import functionality to microservice-importer for quick-import, receipt parsing, and markdown parsing
This commit is contained in:
@@ -1,20 +1,14 @@
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import {
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import {
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BadRequestException,
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Injectable,
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Logger,
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ServiceUnavailableException,
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UnsupportedMediaTypeException,
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} from '@nestjs/common';
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import * as fs from 'node:fs/promises';
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import * as path from 'node:path';
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import * as pdfParse from 'pdf-parse';
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import { createWorker } from 'tesseract.js';
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import { IcaRecipeParser } from './parsers/ica.parser';
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import { GenericRecipeParser } from './parsers/generic.parser';
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import { RecipeParser } from './parsers/base.parser';
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import { downloadAndOptimizeImage } from '../common/utils/download-image';
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const IMAGE_DEST_DIR = process.env.IMAGE_DEST_DIR || '/app/recipe-images';
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const IMPORTER_SERVICE_URL =
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process.env.IMPORTER_SERVICE_URL || 'http://importer-api:3001';
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export interface QuickImportResult {
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markdown: string;
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@@ -23,246 +17,100 @@ export interface QuickImportResult {
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imageWarning?: string;
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}
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type UploadKind = 'pdf' | 'image';
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@Injectable()
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export class QuickImportService {
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private readonly logger = new Logger(QuickImportService.name);
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constructor() {}
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/**
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* Detekterar typ av input (URL eller filsökväg) och importerar från lämplig källa
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*/
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async importFromInput(input: string): Promise<QuickImportResult> {
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const trimmed = input.trim();
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this.logger.log(`Mottog input: ${trimmed}`);
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this.logger.log(`Delegerar URL-import till microservice: ${trimmed}`);
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if (!trimmed) {
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throw new BadRequestException('Du måste ange en URL eller ladda upp en fil');
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throw new BadRequestException('Du måste ange en URL eller ladda upp en fil');
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}
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if (this.isUrl(trimmed)) {
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this.logger.log('Detekterade URL, försöker scrapa...');
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return this.scrapeRecipeFromUrl(trimmed);
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}
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if (this.looksLikeLocalFile(trimmed)) {
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this.logger.log(`Försöker läsa lokal fil: ${trimmed}`);
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try {
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const buffer = await fs.readFile(trimmed);
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return this.importFromBuffer(buffer, path.extname(trimmed).slice(1) as UploadKind);
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} catch (error) {
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this.logger.error(`Kunde inte läsa fil: ${error}`);
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throw new ServiceUnavailableException('Kunde inte läsa filen');
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}
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}
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throw new BadRequestException('Ogiltig input. Ange en URL eller en filsökväg.');
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}
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/**
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* Importerar från en uppladdad fil
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*/
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async importFromUpload(file: Express.Multer.File): Promise<QuickImportResult> {
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this.logger.log(`MIME-typ: ${file.mimetype}, filnamn: ${file.originalname}`);
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const kind = file.mimetype.startsWith('image/') ? 'image' : 'pdf';
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return this.importFromBuffer(file.buffer, kind);
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}
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/**
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* Importerar från en buffert (PDF eller bild)
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*/
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async importFromBuffer(
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buffer: Buffer,
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kind: UploadKind,
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): Promise<QuickImportResult> {
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let response: Response;
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try {
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if (kind === 'pdf') {
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this.logger.log('Parsar PDF med pdf-parse...');
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const data = await pdfParse(buffer);
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const markdown = data.text || '(Tom PDF)';
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return { markdown, source: 'pdf' };
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} else {
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this.logger.log('Parsar bild med tesseract...');
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const worker = await createWorker('swe+eng');
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const ret = await worker.recognize(buffer);
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await worker.terminate();
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const markdown = ret.data.text || '(Tom bild)';
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return { markdown, source: 'image' };
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}
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} catch (error) {
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this.logger.error(`Fel vid import av ${kind}: ${error}`);
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throw new ServiceUnavailableException(`Kunde inte importera ${kind}`);
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}
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}
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private isUrl(input: string): boolean {
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return input.startsWith('http://') || input.startsWith('https://');
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}
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private looksLikeLocalFile(input: string): boolean {
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return input.includes('/') || input.includes('\\');
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}
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private async scrapeRecipeFromUrl(url: string): Promise<QuickImportResult> {
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try {
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this.logger.log(`Hämtar HTML från: ${url}`);
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const response = await fetch(url, {
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headers: {
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'User-Agent':
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'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36',
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},
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response = await fetch(`${IMPORTER_SERVICE_URL}/api/quick-import`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ input: trimmed }),
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});
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this.logger.log(`HTTP status: ${response.status}`);
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}: ${response.statusText}`);
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}
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const html = await response.text();
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this.logger.log(`HTML längd: ${html.length} tecken`);
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const parsers: RecipeParser[] = [
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new IcaRecipeParser(),
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new GenericRecipeParser(),
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];
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let recipe = null;
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for (const parser of parsers) {
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if (parser.canHandle(url)) {
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this.logger.log(`Använder parser: ${parser.constructor.name}`);
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recipe = parser.parse(html);
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break;
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}
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}
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if (!recipe) {
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throw new Error('Ingen parserutrustning tillgänglig');
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}
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this.logger.log(`Parsad recept: ${recipe.name} (${recipe.ingredients.length} ingredienser)`);
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if (!recipe.name) {
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throw new Error('Kunde inte hitta receptnamn på sidan. Försök med en annan länk.');
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}
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const markdown = this.recipeToMarkdown(recipe, url);
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this.logger.log(`Markdown genererad, längd: ${markdown.length}`);
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let source: 'ica' | 'pdf' | 'image' | 'other' = 'other';
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if (/ica\.se/i.test(url)) {
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source = 'ica';
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}
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// Ladda ner och optimera bild om parser hittade en
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let imageUrl: string | undefined;
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let imageWarning: string | undefined;
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if (recipe.imageUrl) {
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this.logger.log(`Bildkandidat från parser: ${recipe.imageUrl}`);
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const normalizedImageUrl = this.normalizeImageUrl(recipe.imageUrl, url);
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this.logger.log(`Normaliserad bild-URL: ${normalizedImageUrl ?? 'null'}`);
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if (!normalizedImageUrl) {
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imageWarning = 'Receptbild kunde inte tolkas till en giltig URL.';
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this.logger.warn(
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`Kunde inte normalisera bild-URL: "${recipe.imageUrl}" (källsida: ${url})`,
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);
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} else {
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try {
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imageUrl = await downloadAndOptimizeImage(normalizedImageUrl, IMAGE_DEST_DIR);
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this.logger.log(`Bild optimerad och sparad: ${imageUrl}`);
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} catch (imgErr) {
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// Fallback: behåll extern URL så klienten ändå kan visa bild.
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imageUrl = normalizedImageUrl;
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imageWarning = 'Receptbild kunde inte laddas ner lokalt; extern URL används.';
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this.logger.warn(
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`Kunde inte ladda ner bild: ${imgErr} (källa: ${normalizedImageUrl})`,
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);
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}
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}
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}
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return {
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markdown,
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source,
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imageUrl,
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imageWarning,
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};
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} catch (err) {
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const message = err instanceof Error ? err.message : 'Okänt fel vid scraping';
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this.logger.error(`Scraping misslyckades: ${message}`);
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throw new BadRequestException(
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`Kunde inte hämta recept: ${message}. Kontrollera att länken är korrekt och försök igen.`
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this.logger.error(`Kunde inte nå importer-api: ${err}`);
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throw new ServiceUnavailableException(
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'Import-tjänsten är inte tillgänglig. Försök igen senare.',
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);
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}
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const result = await this.handleImporterResponse(response);
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return this.downloadImageIfNeeded(result);
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}
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private normalizeImageUrl(rawImageUrl: string, pageUrl: string): string | null {
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const trimmed = rawImageUrl.trim();
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if (!trimmed) return null;
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async importFromUpload(file: Express.Multer.File): Promise<QuickImportResult> {
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this.logger.log(`Delegerar filuploading till microservice: ${file.originalname} (${file.mimetype})`);
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const protocolNormalized =
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trimmed.startsWith('//') ? `https:${trimmed}` : trimmed;
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const form = new FormData();
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form.append(
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'file',
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new Blob([file.buffer], { type: file.mimetype }),
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file.originalname,
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);
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let response: Response;
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try {
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return new URL(protocolNormalized, pageUrl).toString();
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} catch {
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return null;
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response = await fetch(`${IMPORTER_SERVICE_URL}/api/quick-import`, {
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method: 'POST',
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body: form,
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});
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} catch (err) {
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this.logger.error(`Kunde inte nå importer-api: ${err}`);
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throw new ServiceUnavailableException(
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'Import-tjänsten är inte tillgänglig. Försök igen senare.',
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);
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}
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const result = await this.handleImporterResponse(response);
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return this.downloadImageIfNeeded(result);
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}
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/**
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* Konvertera receptobjekt till Markdown-format
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*/
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private recipeToMarkdown(
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recipe: {
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name: string;
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description?: string;
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ingredients: Array<{
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quantity: number;
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unit: string;
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name: string;
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note?: string;
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}>;
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instructions?: string;
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},
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sourceUrl?: string,
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): string {
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const lines: string[] = [];
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lines.push(`# ${recipe.name}`);
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lines.push('');
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if (recipe.description) {
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lines.push(recipe.description);
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lines.push('');
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}
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if (recipe.ingredients.length > 0) {
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lines.push('## Ingredienser');
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for (const ing of recipe.ingredients) {
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const quantity = ing.quantity > 0 ? `${ing.quantity} ` : '';
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const unit = ing.unit ? `${ing.unit} ` : '';
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const note = ing.note ? ` (${ing.note})` : '';
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lines.push(`- ${quantity}${unit}${ing.name}${note}`);
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private async handleImporterResponse(response: Response): Promise<QuickImportResult> {
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if (!response.ok) {
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let message = `Import-tjänsten svarade ${response.status}`;
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try {
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const body = (await response.json()) as { message?: string };
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if (body.message) message = body.message;
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} catch {
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// ignorera parse-fel
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}
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lines.push('');
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this.logger.error(`Importer-api fel: ${message}`);
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if (response.status >= 400 && response.status < 500) {
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throw new BadRequestException(message);
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}
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throw new ServiceUnavailableException(message);
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}
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return response.json() as Promise<QuickImportResult>;
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}
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private async downloadImageIfNeeded(result: QuickImportResult): Promise<QuickImportResult> {
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if (!result.imageUrl) return result;
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const imageUrl = result.imageUrl;
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if (!imageUrl.startsWith('http://') && !imageUrl.startsWith('https://')) {
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return result;
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}
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if (recipe.instructions) {
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lines.push('## Tillvägagångssätt');
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lines.push(recipe.instructions);
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lines.push('');
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this.logger.log(`Laddar ner receptbild: ${imageUrl}`);
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try {
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const localPath = await downloadAndOptimizeImage(imageUrl, IMAGE_DEST_DIR);
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this.logger.log(`Bild sparad lokalt: ${localPath}`);
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return { ...result, imageUrl: localPath };
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} catch (imgErr) {
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this.logger.warn(`Kunde inte ladda ner bild: ${imgErr} (källa: ${imageUrl})`);
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return {
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...result,
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imageWarning: result.imageWarning ?? 'Receptbild kunde inte laddas ner lokalt; extern URL används.',
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};
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}
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if (sourceUrl) {
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lines.push('---');
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lines.push('');
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lines.push(`Källa: [${sourceUrl}](${sourceUrl})`);
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}
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return lines.join('\n');
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}
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}
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@@ -4,71 +4,17 @@ import {
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Logger,
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ServiceUnavailableException,
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} from '@nestjs/common';
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import * as pdfParse from 'pdf-parse';
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import { PrismaService } from '../prisma/prisma.service';
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import { ParsedReceiptItem } from './dto/parsed-receipt-item.dto';
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import { AiService } from '../ai/ai.service';
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import { CategoriesService } from '../categories/categories.service';
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const MISTRAL_API_URL = 'https://api.mistral.ai/v1/chat/completions';
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export const RECEIPT_IMPORT_MODEL = 'mistral-small-2603';
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const IMAGE_PROMPT = `Du är en kvittoläsare. Analysera detta kvitto och returnera ENDAST en JSON-array med alla köpta varor.
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Varje vara ska ha följande fält:
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- "rawName": varans namn som det står på kvittot (sträng)
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- "quantity": antal eller mängd som ett tal (t.ex. 1, 2, 0.5)
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- "unit": enhet — välj ett av: "st", "kg", "g", "l", "dl", "cl", "ml", "förp", "pak", "burk", "flaska"
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- "price": pris i SEK som ett tal, eller null
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- "brand": märke eller leverantör om det tydligt framgår av varunamnet (t.ex. "Arla", "ICA", "Oatly"), annars null
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- "origin": ursprungsland om det framgår av varunamnet (t.ex. "Brasilien", "Sverige", "Italien"), annars null
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Returnera BARA JSON-arrayen utan markdown-formatering.`;
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const TEXT_PROMPT = (text: string) =>
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`Du är en kvittoläsare. Nedan följer rå text från ett kvitto. Analysera texten och returnera ENDAST en JSON-array med alla köpta varor.
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Varje vara ska ha följande fält:
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- "rawName": varans namn som det står på kvittot (sträng)
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- "quantity": antal eller mängd som ett tal (t.ex. 1, 2, 0.5)
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- "unit": enhet — välj ett av: "st", "kg", "g", "l", "dl", "cl", "ml", "förp", "pak", "burk", "flaska"
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- "price": pris i SEK som ett tal, eller null
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- "brand": märke eller leverantör om det tydligt framgår av varunamnet (t.ex. "Arla", "ICA", "Oatly"), annars null
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- "origin": ursprungsland om det framgår av varunamnet (t.ex. "Brasilien", "Sverige", "Italien"), annars null
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Returnera BARA JSON-arrayen utan markdown-formatering.
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Kvittotext:
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${text}`;
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const IMPORTER_SERVICE_URL =
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process.env.IMPORTER_SERVICE_URL || 'http://importer-api:3001';
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@Injectable()
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export class ReceiptImportService {
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private readonly logger = new Logger(ReceiptImportService.name);
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private readonly MAX_RETRIES = 3;
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private async callMistralWithRetry(body: object, apiKey: string, source: string): Promise<Response> {
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for (let attempt = 1; attempt <= this.MAX_RETRIES; attempt++) {
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const response = await fetch(MISTRAL_API_URL, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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Authorization: `Bearer ${apiKey}`,
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},
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body: JSON.stringify(body),
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});
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if (response.status === 503 || response.status === 429) {
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const err = await response.text();
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this.logger.warn(`Mistral ${response.status} (${source}, försök ${attempt}/${this.MAX_RETRIES}): ${err}`);
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if (attempt < this.MAX_RETRIES) {
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await new Promise((r) => setTimeout(r, attempt * 2000));
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continue;
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}
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throw new ServiceUnavailableException('Mistral API returnerade ett fel: Tjänsten tillfälligt otillgänglig (503)');
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}
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return response;
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}
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throw new ServiceUnavailableException('Kunde inte nå Mistral API efter flera försök');
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}
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constructor(
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private readonly prisma: PrismaService,
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@@ -77,120 +23,56 @@ export class ReceiptImportService {
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) {}
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async parseReceipt(file: Express.Multer.File, isPremium = false): Promise<ParsedReceiptItem[]> {
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const apiKey = process.env.MISTRAL_API_KEY;
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if (!apiKey) {
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throw new ServiceUnavailableException(
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'MISTRAL_API_KEY är inte konfigurerad i miljövariabler',
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);
|
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}
|
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|
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const isPdf =
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file.mimetype === 'application/pdf' ||
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file.mimetype === 'application/octet-stream' ||
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||||
file.originalname?.toLowerCase().endsWith('.pdf');
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const rawItems = isPdf
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? await this.parseReceiptFromPdf(file.buffer, apiKey)
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: await this.parseReceiptFromImage(file.buffer, file.mimetype, apiKey);
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// Steg 1: Delegera AI-parsning till microservice-importer
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const rawItems = await this.parseReceiptViaImporter(file);
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||||
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// Steg 2: Matchning mot produktdatabas (kräver DB — stannar i recipe-app)
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const matched = await this.matchProducts(rawItems);
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// Steg 3: AI-kategorisering för premium-användare
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if (isPremium) {
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return this.enrichWithAiCategories(matched);
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||||
}
|
||||
return matched;
|
||||
}
|
||||
|
||||
private async parseReceiptFromImage(
|
||||
buffer: Buffer,
|
||||
mimeType: string,
|
||||
apiKey: string,
|
||||
): Promise<ParsedReceiptItem[]> {
|
||||
const base64 = buffer.toString('base64');
|
||||
const response = await this.callMistralWithRetry({
|
||||
model: RECEIPT_IMPORT_MODEL,
|
||||
messages: [
|
||||
{
|
||||
role: 'user',
|
||||
content: [
|
||||
{
|
||||
type: 'image_url',
|
||||
image_url: { url: `data:${mimeType};base64,${base64}` },
|
||||
},
|
||||
{ type: 'text', text: IMAGE_PROMPT },
|
||||
],
|
||||
},
|
||||
],
|
||||
max_tokens: 2000,
|
||||
temperature: 0.1,
|
||||
}, apiKey, 'bild');
|
||||
private async parseReceiptViaImporter(file: Express.Multer.File): Promise<ParsedReceiptItem[]> {
|
||||
const form = new FormData();
|
||||
form.append(
|
||||
'file',
|
||||
new Blob([file.buffer], { type: file.mimetype }),
|
||||
file.originalname,
|
||||
);
|
||||
|
||||
return this.extractItemsFromMistralResponse(response, 'bild');
|
||||
}
|
||||
|
||||
private async parseReceiptFromPdf(
|
||||
buffer: Buffer,
|
||||
apiKey: string,
|
||||
): Promise<ParsedReceiptItem[]> {
|
||||
let pdfText: string;
|
||||
let response: Response;
|
||||
try {
|
||||
const parsed = await pdfParse(buffer);
|
||||
pdfText = parsed.text?.trim();
|
||||
} catch {
|
||||
throw new BadRequestException('Kunde inte läsa PDF-filen. Kontrollera att filen inte är skadad.');
|
||||
}
|
||||
|
||||
if (!pdfText || pdfText.length < 20) {
|
||||
throw new BadRequestException(
|
||||
'PDF-filen verkar inte innehålla läsbar text. Prova att fotografera kvittot istället.',
|
||||
);
|
||||
}
|
||||
|
||||
this.logger.log(`PDF-text extraherad (${pdfText.length} tecken)`);
|
||||
|
||||
const response = await this.callMistralWithRetry({
|
||||
model: RECEIPT_IMPORT_MODEL,
|
||||
messages: [{ role: 'user', content: TEXT_PROMPT(pdfText) }],
|
||||
max_tokens: 2000,
|
||||
temperature: 0.1,
|
||||
}, apiKey, 'PDF');
|
||||
|
||||
return this.extractItemsFromMistralResponse(response, 'PDF');
|
||||
}
|
||||
|
||||
private async extractItemsFromMistralResponse(
|
||||
response: Response,
|
||||
source: string,
|
||||
): Promise<ParsedReceiptItem[]> {
|
||||
if (!response.ok) {
|
||||
const err = await response.text();
|
||||
this.logger.error(`Mistral API svarade ${response.status} (${source}): ${err}`);
|
||||
const hint =
|
||||
response.status === 401
|
||||
? 'Ogiltig API-nyckel (401)'
|
||||
: response.status === 429
|
||||
? 'För många förfrågningar — försök igen om en stund (429)'
|
||||
: `HTTP ${response.status}`;
|
||||
response = await fetch(`${IMPORTER_SERVICE_URL}/api/receipt-import/parse`, {
|
||||
method: 'POST',
|
||||
body: form,
|
||||
});
|
||||
} catch (err) {
|
||||
this.logger.error(`Kunde inte nå importer-api för kvittoparsning: ${err}`);
|
||||
throw new ServiceUnavailableException(
|
||||
`Mistral API returnerade ett fel: ${hint}`,
|
||||
'Import-tjänsten är inte tillgänglig. Försök igen senare.',
|
||||
);
|
||||
}
|
||||
|
||||
const data = (await response.json()) as {
|
||||
choices: { message: { content: string } }[];
|
||||
};
|
||||
const content = data.choices?.[0]?.message?.content ?? '[]';
|
||||
|
||||
try {
|
||||
const clean = content.replace(/```(?:json)?/gi, '').trim();
|
||||
const items = JSON.parse(clean);
|
||||
if (!Array.isArray(items)) throw new Error('Inte en array');
|
||||
return items as ParsedReceiptItem[];
|
||||
} catch {
|
||||
this.logger.error(`Kunde inte parsa Mistral-svar (${source}):`, content);
|
||||
throw new BadRequestException(
|
||||
`Kvittot kunde inte tolkas. Försök med en tydligare ${source === 'PDF' ? 'PDF' : 'bild'}.`,
|
||||
);
|
||||
if (!response.ok) {
|
||||
let message = `Importer svarade ${response.status}`;
|
||||
try {
|
||||
const body = (await response.json()) as { message?: string };
|
||||
if (body.message) message = body.message;
|
||||
} catch {
|
||||
// ignorera parse-fel
|
||||
}
|
||||
this.logger.error(`Importer-api kvittoparsfel: ${message}`);
|
||||
if (response.status >= 400 && response.status < 500) {
|
||||
throw new BadRequestException(message);
|
||||
}
|
||||
throw new ServiceUnavailableException(message);
|
||||
}
|
||||
|
||||
return response.json() as Promise<ParsedReceiptItem[]>;
|
||||
}
|
||||
|
||||
private async matchProducts(
|
||||
|
||||
@@ -353,7 +353,24 @@ export class RecipesService {
|
||||
}
|
||||
|
||||
async parseMarkdown(dto: ParseMarkdownDto) {
|
||||
const parsed = parseRecipeMarkdown(dto.markdown);
|
||||
// Delegera markdown-parsning till microservice-importer
|
||||
const importerUrl = process.env.IMPORTER_SERVICE_URL || 'http://importer-api:3001';
|
||||
let parsed: ParsedRecipe;
|
||||
try {
|
||||
const response = await fetch(`${importerUrl}/api/recipes/parse-markdown`, {
|
||||
method: 'POST',
|
||||
headers: { 'Content-Type': 'application/json' },
|
||||
body: JSON.stringify({ markdown: dto.markdown }),
|
||||
});
|
||||
if (!response.ok) {
|
||||
throw new Error(`Importer svarade ${response.status}`);
|
||||
}
|
||||
parsed = (await response.json()) as ParsedRecipe;
|
||||
} catch (err) {
|
||||
this.logger.error(`Kunde inte nå importer-api för parse-markdown: ${err}`);
|
||||
// Fallback: använd lokal parser vid driftavbrott
|
||||
parsed = parseRecipeMarkdown(dto.markdown);
|
||||
}
|
||||
|
||||
const allProducts = await this.prisma.product.findMany({
|
||||
where: { isActive: true },
|
||||
|
||||
Reference in New Issue
Block a user