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Stirling 2.0 (#3645)
# Description of Changes Please provide a summary of the changes, including: Vite fixes Indexxdb Closes #(issue_number) --- ## Checklist ### General - [ ] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [ ] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md) (if applicable) - [ ] I have read the [How to add new languages to Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md) (if applicable) - [ ] I have performed a self-review of my own code - [ ] My changes generate no new warnings ### Documentation - [ ] I have updated relevant docs on [Stirling-PDF's doc repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/) (if functionality has heavily changed) - [ ] I have read the section [Add New Translation Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags) (for new translation tags only) ### UI Changes (if applicable) - [ ] Screenshots or videos demonstrating the UI changes are attached (e.g., as comments or direct attachments in the PR) ### Testing (if applicable) - [ ] I have tested my changes locally. Refer to the [Testing Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing) for more details.
This commit is contained in:
Reece Browne
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import { FileWithUrl } from "../types/file";
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import { fileStorage, StorageStats } from "./fileStorage";
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import { loadFilesFromIndexedDB, createEnhancedFileFromStored, cleanupFileUrls } from "../utils/fileUtils";
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import { generateThumbnailForFile } from "../utils/thumbnailUtils";
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import { updateStorageStatsIncremental } from "../utils/storageUtils";
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/**
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* Service for file storage operations
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* Contains all IndexedDB operations and file management logic
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*/
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export const fileOperationsService = {
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/**
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* Load storage statistics
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*/
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async loadStorageStats(): Promise<StorageStats | null> {
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try {
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return await fileStorage.getStorageStats();
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} catch (error) {
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console.error('Failed to load storage stats:', error);
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return null;
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}
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},
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/**
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* Force reload files from IndexedDB
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*/
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async forceReloadFiles(): Promise<FileWithUrl[]> {
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try {
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return await loadFilesFromIndexedDB();
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} catch (error) {
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console.error('Failed to force reload files:', error);
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return [];
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}
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},
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/**
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* Load existing files from IndexedDB if not already loaded
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*/
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async loadExistingFiles(
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filesLoaded: boolean,
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currentFiles: FileWithUrl[]
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): Promise<FileWithUrl[]> {
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if (filesLoaded && currentFiles.length > 0) {
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return currentFiles;
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}
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try {
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await fileStorage.init();
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const storedFiles = await fileStorage.getAllFileMetadata();
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// Detect if IndexedDB was purged by comparing with current UI state
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if (currentFiles.length > 0 && storedFiles.length === 0) {
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console.warn('IndexedDB appears to have been purged - clearing UI state');
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return [];
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}
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return await loadFilesFromIndexedDB();
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} catch (error) {
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console.error('Failed to load existing files:', error);
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return [];
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}
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},
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/**
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* Upload files to IndexedDB with thumbnail generation
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*/
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async uploadFiles(
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uploadedFiles: File[],
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useIndexedDB: boolean
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): Promise<FileWithUrl[]> {
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const newFiles: FileWithUrl[] = [];
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for (const file of uploadedFiles) {
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if (useIndexedDB) {
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try {
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console.log('Storing file in IndexedDB:', file.name);
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// Generate thumbnail only during upload
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const thumbnail = await generateThumbnailForFile(file);
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const storedFile = await fileStorage.storeFile(file, thumbnail);
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console.log('File stored with ID:', storedFile.id);
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const baseFile = fileStorage.createFileFromStored(storedFile);
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const enhancedFile = createEnhancedFileFromStored(storedFile, thumbnail);
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// Copy File interface methods from baseFile
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enhancedFile.arrayBuffer = baseFile.arrayBuffer.bind(baseFile);
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enhancedFile.slice = baseFile.slice.bind(baseFile);
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enhancedFile.stream = baseFile.stream.bind(baseFile);
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enhancedFile.text = baseFile.text.bind(baseFile);
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newFiles.push(enhancedFile);
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} catch (error) {
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console.error('Failed to store file in IndexedDB:', error);
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// Fallback to RAM storage
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const enhancedFile: FileWithUrl = Object.assign(file, {
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url: URL.createObjectURL(file),
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storedInIndexedDB: false
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});
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newFiles.push(enhancedFile);
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}
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} else {
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// IndexedDB disabled - use RAM
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const enhancedFile: FileWithUrl = Object.assign(file, {
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url: URL.createObjectURL(file),
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storedInIndexedDB: false
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});
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newFiles.push(enhancedFile);
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}
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}
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return newFiles;
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},
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/**
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* Remove a file from storage
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*/
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async removeFile(file: FileWithUrl): Promise<void> {
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// Clean up blob URL
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if (file.url && !file.url.startsWith('indexeddb:')) {
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URL.revokeObjectURL(file.url);
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}
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// Remove from IndexedDB if stored there
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if (file.storedInIndexedDB && file.id) {
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try {
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await fileStorage.deleteFile(file.id);
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} catch (error) {
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console.error('Failed to delete file from IndexedDB:', error);
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}
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}
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},
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/**
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* Clear all files from storage
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*/
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async clearAllFiles(files: FileWithUrl[]): Promise<void> {
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// Clean up all blob URLs
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cleanupFileUrls(files);
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// Clear IndexedDB
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try {
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await fileStorage.clearAll();
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} catch (error) {
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console.error('Failed to clear IndexedDB:', error);
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}
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},
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/**
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* Create blob URL for file viewing
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*/
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async createBlobUrlForFile(file: FileWithUrl): Promise<string> {
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// For large files, use IndexedDB direct access to avoid memory issues
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const FILE_SIZE_LIMIT = 100 * 1024 * 1024; // 100MB
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if (file.size > FILE_SIZE_LIMIT) {
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console.warn(`File ${file.name} is too large for blob URL. Use direct IndexedDB access.`);
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return `indexeddb:${file.id}`;
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}
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// For all files, avoid persistent blob URLs
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if (file.storedInIndexedDB && file.id) {
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const storedFile = await fileStorage.getFile(file.id);
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if (storedFile) {
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return fileStorage.createBlobUrl(storedFile);
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}
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}
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// Fallback for files not in IndexedDB
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return URL.createObjectURL(file);
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},
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/**
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* Check for IndexedDB purge
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*/
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async checkForPurge(currentFiles: FileWithUrl[]): Promise<boolean> {
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if (currentFiles.length === 0) return false;
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try {
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await fileStorage.init();
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const storedFiles = await fileStorage.getAllFileMetadata();
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return storedFiles.length === 0; // Purge detected if no files in storage but UI shows files
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} catch (error) {
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console.error('Error checking for purge:', error);
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return true; // Assume purged if can't access IndexedDB
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}
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},
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/**
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* Update storage stats incrementally (re-export utility for convenience)
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*/
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updateStorageStatsIncremental
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};
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