Function traverseFileTree

tools/common/fileUploadHelpers.js:12–63

(item, path, files)

 * @param {Array} files - Collected files list
 */
export async function traverseFileTree(item, path, files) {
    if (item.isFile) {
        return new Promise((resolve, reject) => {
            item.file((file) => {
                console.log(`Found file: ${file.name} (${file.type}, ${file.size} bytes)`);
                files.push({ file, path: path + file.name });
                resolve();
            }, (error) => {
                console.warn(`Failed to read file: ${item.name}`, error);
                reject(error);
            });
        });
    } else if (item.isDirectory) {
        const dirReader = item.createReader();
        const newPath = path + item.name + '/';
        
        console.log(`Entering directory: ${item.name}`);
        
        const readAllEntries = () => {
            return new Promise((resolve, reject) => {
                const allEntries = [];
                
                const readBatch = () => {
                    dirReader.readEntries((entries) => {
                        if (entries.length > 0) {
                            allEntries.push(...entries);
                            readBatch();
                        } else {
                            resolve(allEntries);
                        }
                    }, (error) => {
                        console.warn(`Failed to read directory: ${item.name}`, error);
                        reject(error);
                    });
                };
                
                readBatch();
            });
        };
        
        try {
            const entries = await readAllEntries();
            console.log(`Directory ${item.name} contains ${entries.length} entries`);
            
            // Use Promise.all to process entries concurrently
            const promises = entries.map(entry => traverseFileTree(entry, newPath, files));
            await Promise.all(promises);
        } catch (error) {
            console.warn(`Error processing directory ${item.name}:`, error);
        }
    }
}

/**
 * Enable global drag-and-drop support