mirror of
https://github.com/olehomelchenko/astrolabe-nvc.git
synced 2025-12-21 21:22:23 +00:00
1401 lines
48 KiB
JavaScript
1401 lines
48 KiB
JavaScript
// Dataset management with IndexedDB
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const DB_NAME = 'astrolabe-datasets';
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const DB_VERSION = 1;
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const STORE_NAME = 'datasets';
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let db = null;
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// Initialize IndexedDB
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function initializeDatasetDB() {
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return new Promise((resolve, reject) => {
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const request = indexedDB.open(DB_NAME, DB_VERSION);
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request.onerror = () => reject(request.error);
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request.onsuccess = () => {
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db = request.result;
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resolve(db);
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};
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request.onupgradeneeded = (event) => {
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const db = event.target.result;
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// Create object store if it doesn't exist
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if (!db.objectStoreNames.contains(STORE_NAME)) {
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const objectStore = db.createObjectStore(STORE_NAME, { keyPath: 'id' });
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objectStore.createIndex('name', 'name', { unique: true });
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objectStore.createIndex('modified', 'modified', { unique: false });
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}
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};
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});
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}
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// Generate unique ID
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function generateDatasetId() {
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return Date.now() + Math.random() * 1000;
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}
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// Calculate dataset statistics
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function calculateDatasetStats(data, format, source) {
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let rowCount = 0;
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let columnCount = 0;
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let columns = [];
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let size = 0;
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// For URL sources, we can't calculate stats without fetching
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if (source === 'url') {
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return { rowCount: null, columnCount: null, columns: [], size: null };
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}
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if (format === 'json' || format === 'topojson') {
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if (!Array.isArray(data) || data.length === 0) {
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return { rowCount: 0, columnCount: 0, columns: [], size: 0 };
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}
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rowCount = data.length;
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const firstRow = data[0];
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columns = typeof firstRow === 'object' ? Object.keys(firstRow) : [];
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columnCount = columns.length;
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size = new Blob([JSON.stringify(data)]).size;
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} else if (format === 'csv' || format === 'tsv') {
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// For CSV/TSV, data is stored as raw text
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const lines = data.trim().split('\n');
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rowCount = Math.max(0, lines.length - 1); // Subtract header row
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if (lines.length > 0) {
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const separator = format === 'csv' ? ',' : '\t';
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columns = lines[0].split(separator).map(h => h.trim().replace(/^"|"$/g, ''));
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columnCount = columns.length;
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}
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size = new Blob([data]).size;
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}
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return { rowCount, columnCount, columns, size };
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}
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// Dataset Storage API
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const DatasetStorage = {
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// Initialize database
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async init() {
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if (!db) {
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await initializeDatasetDB();
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}
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return db;
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},
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// Create new dataset
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async createDataset(name, data, format, source, comment = '') {
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await this.init();
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const now = new Date().toISOString();
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const stats = calculateDatasetStats(data, format, source);
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const dataset = {
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id: generateDatasetId(),
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name: name.trim(),
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created: now,
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modified: now,
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data: data, // For inline: actual data, for URL: the URL string
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format: format, // 'json', 'csv', 'tsv', or 'topojson'
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source: source, // 'inline' or 'url'
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comment: comment.trim(),
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...stats
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};
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readwrite');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.add(dataset);
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request.onsuccess = () => resolve(dataset);
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request.onerror = () => reject(request.error);
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});
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},
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// Get all datasets
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async listDatasets() {
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await this.init();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readonly');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.getAll();
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request.onsuccess = () => resolve(request.result);
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request.onerror = () => reject(request.error);
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});
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},
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// Get single dataset by ID
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async getDataset(id) {
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await this.init();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readonly');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.get(id);
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request.onsuccess = () => resolve(request.result);
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request.onerror = () => reject(request.error);
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});
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},
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// Get dataset by name
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async getDatasetByName(name) {
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await this.init();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readonly');
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const store = transaction.objectStore(STORE_NAME);
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const index = store.index('name');
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const request = index.get(name);
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request.onsuccess = () => resolve(request.result);
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request.onerror = () => reject(request.error);
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});
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},
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// Update dataset
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async updateDataset(id, updates) {
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await this.init();
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const dataset = await this.getDataset(id);
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if (!dataset) {
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throw new Error('Dataset not found');
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}
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// Update fields
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if (updates.name !== undefined) dataset.name = updates.name.trim();
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if (updates.data !== undefined) {
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dataset.data = updates.data;
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if (updates.format !== undefined) dataset.format = updates.format;
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if (updates.source !== undefined) dataset.source = updates.source;
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// If metadata fields are explicitly provided, use them directly
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if (updates.rowCount !== undefined) dataset.rowCount = updates.rowCount;
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if (updates.columnCount !== undefined) dataset.columnCount = updates.columnCount;
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if (updates.columns !== undefined) dataset.columns = updates.columns;
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if (updates.size !== undefined) dataset.size = updates.size;
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// Otherwise, calculate stats (for inline data)
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if (updates.rowCount === undefined && updates.columnCount === undefined) {
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const stats = calculateDatasetStats(updates.data, dataset.format, dataset.source);
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Object.assign(dataset, stats);
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}
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}
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if (updates.comment !== undefined) dataset.comment = updates.comment.trim();
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dataset.modified = new Date().toISOString();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readwrite');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.put(dataset);
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request.onsuccess = () => resolve(dataset);
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request.onerror = () => reject(request.error);
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});
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},
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// Delete dataset
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async deleteDataset(id) {
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await this.init();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readwrite');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.delete(id);
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request.onsuccess = () => resolve(true);
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request.onerror = () => reject(request.error);
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});
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},
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// Check if dataset name exists
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async nameExists(name, excludeId = null) {
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const datasets = await this.listDatasets();
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return datasets.some(d => d.name === name && d.id !== excludeId);
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}
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};
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// Helper: Get currently selected dataset
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async function getCurrentDataset() {
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return window.currentDatasetId ? await DatasetStorage.getDataset(window.currentDatasetId) : null;
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}
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// Count how many snippets use a specific dataset
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function countSnippetUsage(datasetName) {
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const snippets = SnippetStorage.loadSnippets();
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return snippets.filter(snippet =>
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snippet.datasetRefs && snippet.datasetRefs.includes(datasetName)
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).length;
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}
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// Fetch URL data and calculate metadata
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async function fetchURLMetadata(url, format) {
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try {
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const response = await fetch(url);
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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 contentLength = response.headers.get('content-length');
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const text = await response.text();
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let rowCount = 0;
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let columnCount = 0;
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let columns = [];
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let size = contentLength ? parseInt(contentLength) : new Blob([text]).size;
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// Parse based on format
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if (format === 'json') {
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const data = JSON.parse(text);
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if (Array.isArray(data)) {
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rowCount = data.length;
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if (data.length > 0 && typeof data[0] === 'object') {
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columns = Object.keys(data[0]);
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columnCount = columns.length;
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}
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}
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} else if (format === 'csv' || format === 'tsv') {
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const lines = text.trim().split('\n');
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rowCount = Math.max(0, lines.length - 1); // Subtract header
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if (lines.length > 0) {
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const separator = format === 'csv' ? ',' : '\t';
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columns = lines[0].split(separator).map(h => h.trim().replace(/^"|"$/g, ''));
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columnCount = columns.length;
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}
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} else if (format === 'topojson') {
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// TopoJSON structure is complex, just note it exists
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rowCount = null;
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columnCount = null;
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}
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return { rowCount, columnCount, columns, size };
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} catch (error) {
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throw new Error(`Failed to fetch URL metadata: ${error.message}`);
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}
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}
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// Render dataset list in modal
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async function renderDatasetList() {
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const datasets = await DatasetStorage.listDatasets();
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const listContainer = document.getElementById('dataset-list');
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if (datasets.length === 0) {
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listContainer.innerHTML = '<div class="dataset-empty">No datasets yet. Click "New Dataset" to create one.</div>';
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return;
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}
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// Sort by modified date (most recent first)
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datasets.sort((a, b) => new Date(b.modified) - new Date(a.modified));
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const formatDatasetItem = (dataset) => {
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let metaText;
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if (dataset.source === 'url') {
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// Show metadata if available, otherwise just URL and format
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if (dataset.rowCount !== null && dataset.size !== null) {
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metaText = `URL • ${dataset.rowCount} rows • ${dataset.format.toUpperCase()} • ${formatBytes(dataset.size)}`;
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} else {
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metaText = `URL • ${dataset.format.toUpperCase()}`;
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}
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} else {
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metaText = `${dataset.rowCount} rows • ${dataset.format.toUpperCase()} • ${formatBytes(dataset.size)}`;
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}
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// Count snippet usage and create badge
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const usageCount = countSnippetUsage(dataset.name);
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const usageBadge = usageCount > 0
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? `<div class="dataset-usage-badge" title="${usageCount} snippet${usageCount !== 1 ? 's' : ''} using this dataset">📄 ${usageCount}</div>`
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: '';
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return `
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<div class="dataset-item" data-item-id="${dataset.id}">
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<div class="dataset-info">
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<div class="dataset-name">${dataset.name}</div>
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<div class="dataset-meta">${metaText}</div>
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</div>
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${usageBadge}
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</div>
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`;
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};
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const html = datasets.map(formatDatasetItem).join('');
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listContainer.innerHTML = html;
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// Attach click handlers
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document.querySelectorAll('.dataset-item').forEach(item => {
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item.addEventListener('click', function() {
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const datasetId = parseFloat(this.dataset.itemId);
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selectDataset(datasetId);
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});
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});
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}
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// Select a dataset and show details
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async function selectDataset(datasetId, updateURL = true) {
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const dataset = await DatasetStorage.getDataset(datasetId);
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if (!dataset) return;
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// Update selection state
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document.querySelectorAll('.dataset-item').forEach(item => {
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item.classList.remove('selected');
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});
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const selectedItem = document.querySelector(`[data-item-id="${datasetId}"]`);
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if (selectedItem) {
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selectedItem.classList.add('selected');
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}
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// Show details panel
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const detailsPanel = document.getElementById('dataset-details');
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detailsPanel.style.display = 'block';
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// Show/hide refresh button for URL datasets
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const refreshBtn = document.getElementById('refresh-metadata-btn');
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if (dataset.source === 'url') {
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refreshBtn.style.display = 'flex';
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} else {
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refreshBtn.style.display = 'none';
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}
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// Populate details
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document.getElementById('dataset-detail-name').value = dataset.name;
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document.getElementById('dataset-detail-comment').value = dataset.comment;
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document.getElementById('dataset-detail-rows').textContent = dataset.rowCount !== null ? dataset.rowCount : 'N/A';
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document.getElementById('dataset-detail-columns').textContent = dataset.columnCount !== null ? dataset.columnCount : 'N/A';
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document.getElementById('dataset-detail-size').textContent = formatBytes(dataset.size);
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document.getElementById('dataset-detail-created').textContent = new Date(dataset.created).toLocaleString();
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document.getElementById('dataset-detail-modified').textContent = new Date(dataset.modified).toLocaleString();
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// Show/hide preview toggle based on data type
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const toggleGroup = document.getElementById('preview-toggle-group');
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const canShowTable = (dataset.format === 'json' || dataset.format === 'csv' || dataset.format === 'tsv');
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if (dataset.source === 'url') {
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// For URL datasets, check if we have cached preview data
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if (window.urlPreviewCache && window.urlPreviewCache[dataset.id]) {
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if (canShowTable) {
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toggleGroup.style.display = 'flex';
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} else {
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toggleGroup.style.display = 'none';
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}
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showRawPreview(dataset);
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} else {
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// Show load preview option
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toggleGroup.style.display = 'none';
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showURLPreviewPrompt(dataset);
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}
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} else {
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// For inline datasets
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if (canShowTable) {
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toggleGroup.style.display = 'flex';
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} else {
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toggleGroup.style.display = 'none';
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}
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showRawPreview(dataset);
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}
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// Store current dataset ID and data
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window.currentDatasetId = datasetId;
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window.currentDatasetData = dataset;
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// Update linked snippets display
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updateLinkedSnippets(dataset);
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// Update URL state (URLState.update will add 'dataset-' prefix)
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if (updateURL) {
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URLState.update({ view: 'datasets', snippetId: null, datasetId: datasetId });
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}
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}
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// Show URL preview prompt (button to load data)
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function showURLPreviewPrompt(dataset) {
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const previewBox = document.getElementById('dataset-preview');
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const tableContainer = document.getElementById('dataset-preview-table');
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previewBox.style.display = 'block';
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tableContainer.style.display = 'none';
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const promptHTML = `
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<div style="text-align: center; padding: 20px;">
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<div style="margin-bottom: 12px; font-size: 11px; color: #606060;">
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URL: ${dataset.data}<br/>
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Format: ${dataset.format.toUpperCase()}
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</div>
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<button class="btn btn-standard primary" id="load-preview-btn">Load Preview</button>
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<div style="margin-top: 8px; font-size: 10px; color: #808080; font-style: italic;">
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Data will be fetched but not saved
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</div>
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</div>
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`;
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previewBox.innerHTML = promptHTML;
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// Add click handler
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const loadBtn = document.getElementById('load-preview-btn');
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if (loadBtn) {
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loadBtn.addEventListener('click', async () => {
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await loadURLPreview(dataset);
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});
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}
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}
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// Load and cache URL preview data
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async function loadURLPreview(dataset) {
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const previewBox = document.getElementById('dataset-preview');
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previewBox.innerHTML = '<div style="text-align: center; padding: 20px; font-size: 11px;">Loading data from URL...</div>';
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try {
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const response = await fetch(dataset.data);
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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 text = await response.text();
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// Parse data based on format
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let parsedData;
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if (dataset.format === 'json' || dataset.format === 'topojson') {
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parsedData = JSON.parse(text);
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} else if (dataset.format === 'csv' || dataset.format === 'tsv') {
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parsedData = text;
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}
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// Cache the preview data (don't save to DB)
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if (!window.urlPreviewCache) {
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window.urlPreviewCache = {};
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}
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window.urlPreviewCache[dataset.id] = {
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data: parsedData,
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fetchedAt: Date.now()
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};
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// Create a temporary dataset object with the fetched data
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const previewDataset = {
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...dataset,
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data: parsedData,
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source: 'inline' // Treat as inline for preview purposes
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};
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// Update current dataset data for preview
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window.currentDatasetData = previewDataset;
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// Show toggle buttons now that we have data
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const toggleGroup = document.getElementById('preview-toggle-group');
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const canShowTable = (dataset.format === 'json' || dataset.format === 'csv' || dataset.format === 'tsv');
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if (canShowTable) {
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toggleGroup.style.display = 'flex';
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}
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// Show the preview
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showRawPreview(previewDataset);
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} catch (error) {
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previewBox.innerHTML = `
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<div style="text-align: center; padding: 20px; color: #f00; font-size: 11px;">
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<div style="margin-bottom: 8px;">Failed to load URL data:</div>
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<div>${error.message}</div>
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<button class="btn btn-standard" id="retry-preview-btn" style="margin-top: 12px;">Retry</button>
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</div>
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`;
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const retryBtn = document.getElementById('retry-preview-btn');
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if (retryBtn) {
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retryBtn.addEventListener('click', async () => {
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await loadURLPreview(dataset);
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});
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}
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}
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}
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// Show raw preview
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function showRawPreview(dataset) {
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const rawBtn = document.getElementById('preview-raw-btn');
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const tableBtn = document.getElementById('preview-table-btn');
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const previewBox = document.getElementById('dataset-preview');
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const tableContainer = document.getElementById('dataset-preview-table');
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// Update button states
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if (rawBtn && tableBtn) {
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rawBtn.classList.add('active');
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tableBtn.classList.remove('active');
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}
|
|
|
|
// Show raw, hide table
|
|
previewBox.style.display = 'block';
|
|
tableContainer.style.display = 'none';
|
|
|
|
// Generate preview text
|
|
let previewText;
|
|
if (dataset.source === 'url') {
|
|
previewText = `URL: ${dataset.data}\nFormat: ${dataset.format.toUpperCase()}`;
|
|
} else if (dataset.format === 'json' || dataset.format === 'topojson') {
|
|
const previewData = Array.isArray(dataset.data) ? dataset.data.slice(0, 5) : dataset.data;
|
|
previewText = JSON.stringify(previewData, null, 2);
|
|
} else if (dataset.format === 'csv' || dataset.format === 'tsv') {
|
|
const lines = dataset.data.split('\n');
|
|
previewText = lines.slice(0, 6).join('\n'); // Header + 5 rows
|
|
}
|
|
previewBox.textContent = previewText;
|
|
}
|
|
|
|
// Detect column type from sample values
|
|
function detectColumnType(values) {
|
|
// Filter out null/undefined values
|
|
const validValues = values.filter(v => v !== null && v !== undefined && v !== '');
|
|
if (validValues.length === 0) return 'text';
|
|
|
|
let numberCount = 0;
|
|
let booleanCount = 0;
|
|
let dateCount = 0;
|
|
|
|
for (const val of validValues) {
|
|
const str = String(val).trim();
|
|
|
|
// Check boolean
|
|
if (str === 'true' || str === 'false' || str === '0' || str === '1' ||
|
|
str === 'True' || str === 'False' || str === 'TRUE' || str === 'FALSE') {
|
|
booleanCount++;
|
|
continue;
|
|
}
|
|
|
|
// Check number
|
|
const num = parseFloat(str);
|
|
if (!isNaN(num) && isFinite(num) && str === String(num)) {
|
|
numberCount++;
|
|
continue;
|
|
}
|
|
|
|
// Check date (ISO format or common patterns)
|
|
// ISO: 2024-01-15, 2024-01-15T10:30:00, etc.
|
|
const isoDatePattern = /^\d{4}-\d{2}-\d{2}(T\d{2}:\d{2}:\d{2})?/;
|
|
// Common: 01/15/2024, 15-01-2024, etc.
|
|
const commonDatePattern = /^\d{1,2}[-/]\d{1,2}[-/]\d{2,4}$/;
|
|
|
|
if (isoDatePattern.test(str) || commonDatePattern.test(str)) {
|
|
const parsed = new Date(str);
|
|
if (!isNaN(parsed.getTime())) {
|
|
dateCount++;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
const total = validValues.length;
|
|
const threshold = 0.8; // 80% of values must match type
|
|
|
|
if (booleanCount / total >= threshold) return 'boolean';
|
|
if (numberCount / total >= threshold) return 'number';
|
|
if (dateCount / total >= threshold) return 'date';
|
|
return 'text';
|
|
}
|
|
|
|
// Get type icon
|
|
function getTypeIcon(type) {
|
|
switch (type) {
|
|
case 'number': return '🔢';
|
|
case 'date': return '📅';
|
|
case 'boolean': return '✓';
|
|
case 'text':
|
|
default: return '🔤';
|
|
}
|
|
}
|
|
|
|
// Show table preview
|
|
function showTablePreview(dataset) {
|
|
const rawBtn = document.getElementById('preview-raw-btn');
|
|
const tableBtn = document.getElementById('preview-table-btn');
|
|
const previewBox = document.getElementById('dataset-preview');
|
|
const tableContainer = document.getElementById('dataset-preview-table');
|
|
|
|
// Update button states
|
|
rawBtn.classList.remove('active');
|
|
tableBtn.classList.add('active');
|
|
|
|
// Hide raw, show table
|
|
previewBox.style.display = 'none';
|
|
tableContainer.style.display = 'block';
|
|
|
|
// Generate table HTML
|
|
let tableHTML = '';
|
|
const maxRows = 20; // Show first 20 rows
|
|
|
|
if (dataset.format === 'json') {
|
|
if (!Array.isArray(dataset.data) || dataset.data.length === 0) {
|
|
tableHTML = '<div class="preview-table-info">Cannot display non-array JSON data in table format</div>';
|
|
} else {
|
|
const rows = dataset.data.slice(0, maxRows);
|
|
const columns = Object.keys(rows[0] || {});
|
|
|
|
// Detect column types
|
|
const columnTypes = {};
|
|
columns.forEach(col => {
|
|
const values = dataset.data.map(row => row[col]);
|
|
columnTypes[col] = detectColumnType(values);
|
|
});
|
|
|
|
tableHTML = '<table class="preview-table">';
|
|
tableHTML += '<thead><tr>';
|
|
columns.forEach(col => {
|
|
const typeIcon = getTypeIcon(columnTypes[col]);
|
|
tableHTML += `<th><span class="type-icon">${typeIcon}</span> ${col}</th>`;
|
|
});
|
|
tableHTML += '</tr></thead>';
|
|
tableHTML += '<tbody>';
|
|
rows.forEach(row => {
|
|
tableHTML += '<tr>';
|
|
columns.forEach(col => {
|
|
const value = row[col];
|
|
const type = columnTypes[col];
|
|
let displayValue = '';
|
|
let cssClass = '';
|
|
|
|
if (value === null || value === undefined) {
|
|
displayValue = '';
|
|
cssClass = 'cell-null';
|
|
} else if (typeof value === 'object') {
|
|
displayValue = JSON.stringify(value);
|
|
cssClass = 'cell-text';
|
|
} else {
|
|
displayValue = String(value);
|
|
cssClass = `cell-${type}`;
|
|
}
|
|
|
|
tableHTML += `<td class="${cssClass}">${displayValue}</td>`;
|
|
});
|
|
tableHTML += '</tr>';
|
|
});
|
|
tableHTML += '</tbody></table>';
|
|
|
|
if (dataset.data.length > maxRows) {
|
|
tableHTML += `<div class="preview-table-info">Showing first ${maxRows} of ${dataset.data.length} rows</div>`;
|
|
}
|
|
}
|
|
} else if (dataset.format === 'csv' || dataset.format === 'tsv') {
|
|
const separator = dataset.format === 'csv' ? ',' : '\t';
|
|
const lines = dataset.data.split('\n').filter(line => line.trim());
|
|
|
|
if (lines.length < 2) {
|
|
tableHTML = '<div class="preview-table-info">No data to display</div>';
|
|
} else {
|
|
const headerLine = lines[0];
|
|
const headers = headerLine.split(separator).map(h => h.trim().replace(/^"|"$/g, ''));
|
|
const dataLines = lines.slice(1, maxRows + 1);
|
|
const allDataLines = lines.slice(1); // All lines for type detection
|
|
|
|
// Parse all data for type detection
|
|
const columnData = headers.map(() => []);
|
|
allDataLines.forEach(line => {
|
|
const cells = line.split(separator).map(c => c.trim().replace(/^"|"$/g, ''));
|
|
cells.forEach((cell, idx) => {
|
|
if (columnData[idx]) {
|
|
columnData[idx].push(cell);
|
|
}
|
|
});
|
|
});
|
|
|
|
// Detect column types
|
|
const columnTypes = columnData.map(colValues => detectColumnType(colValues));
|
|
|
|
tableHTML = '<table class="preview-table">';
|
|
tableHTML += '<thead><tr>';
|
|
headers.forEach((header, idx) => {
|
|
const typeIcon = getTypeIcon(columnTypes[idx]);
|
|
tableHTML += `<th><span class="type-icon">${typeIcon}</span> ${header}</th>`;
|
|
});
|
|
tableHTML += '</tr></thead>';
|
|
tableHTML += '<tbody>';
|
|
dataLines.forEach(line => {
|
|
const cells = line.split(separator).map(c => c.trim().replace(/^"|"$/g, ''));
|
|
tableHTML += '<tr>';
|
|
cells.forEach((cell, idx) => {
|
|
const type = columnTypes[idx] || 'text';
|
|
const cssClass = cell === '' ? 'cell-null' : `cell-${type}`;
|
|
tableHTML += `<td class="${cssClass}">${cell}</td>`;
|
|
});
|
|
tableHTML += '</tr>';
|
|
});
|
|
tableHTML += '</tbody></table>';
|
|
|
|
if (lines.length > maxRows + 1) {
|
|
tableHTML += `<div class="preview-table-info">Showing first ${maxRows} of ${lines.length - 1} rows</div>`;
|
|
}
|
|
}
|
|
}
|
|
|
|
tableContainer.innerHTML = tableHTML;
|
|
}
|
|
|
|
// Update linked snippets display in dataset details panel
|
|
function updateLinkedSnippets(dataset) {
|
|
// Find all snippets that reference this dataset
|
|
const snippets = SnippetStorage.loadSnippets();
|
|
const linkedSnippets = snippets.filter(snippet =>
|
|
snippet.datasetRefs && snippet.datasetRefs.includes(dataset.name)
|
|
);
|
|
|
|
updateGenericLinkedItems(
|
|
linkedSnippets,
|
|
'dataset-snippets',
|
|
'dataset-snippets-section',
|
|
(snippet) => `
|
|
<div class="stat-item">
|
|
<span class="stat-label">📄</span>
|
|
<span>
|
|
<a href="#snippet-${snippet.id}" class="snippet-link" data-linked-item-id="${snippet.id}">${snippet.name}</a>
|
|
</span>
|
|
</div>
|
|
`,
|
|
(snippetId) => {
|
|
openSnippetFromDataset(snippetId);
|
|
}
|
|
);
|
|
}
|
|
|
|
// Close dataset manager and open snippet
|
|
function openSnippetFromDataset(snippetId) {
|
|
// Close dataset manager
|
|
closeDatasetManager();
|
|
|
|
// Small delay to ensure UI is ready
|
|
setTimeout(() => {
|
|
selectSnippet(parseFloat(snippetId));
|
|
}, 100);
|
|
}
|
|
|
|
// Open dataset manager modal
|
|
function openDatasetManager(updateURL = true) {
|
|
const modal = document.getElementById('dataset-modal');
|
|
modal.style.display = 'flex';
|
|
renderDatasetList();
|
|
|
|
// Update URL state
|
|
if (updateURL) {
|
|
URLState.update({ view: 'datasets', snippetId: null, datasetId: null });
|
|
}
|
|
|
|
// Track event
|
|
Analytics.track('modal-datasets', 'Open Dataset Manager');
|
|
}
|
|
|
|
// Close dataset manager modal
|
|
function closeDatasetManager(updateURL = true) {
|
|
const modal = document.getElementById('dataset-modal');
|
|
modal.style.display = 'none';
|
|
window.currentDatasetId = null;
|
|
|
|
// Update URL state - restore snippet if one is selected
|
|
if (updateURL) {
|
|
if (window.currentSnippetId) {
|
|
URLState.update({ view: 'snippets', snippetId: window.currentSnippetId, datasetId: null });
|
|
} else {
|
|
URLState.clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Auto-detect data format from pasted content
|
|
function detectDataFormat(text) {
|
|
text = text.trim();
|
|
|
|
// Try JSON first
|
|
try {
|
|
const parsed = JSON.parse(text);
|
|
|
|
// Check if it's TopoJSON
|
|
if (parsed && typeof parsed === 'object' && parsed.type === 'Topology') {
|
|
return { format: 'topojson', parsed, confidence: 'high' };
|
|
}
|
|
|
|
// Check if it's JSON array
|
|
if (Array.isArray(parsed)) {
|
|
return { format: 'json', parsed, confidence: 'high' };
|
|
}
|
|
|
|
// Could be TopoJSON or other JSON object
|
|
return { format: 'json', parsed, confidence: 'medium' };
|
|
} catch (e) {
|
|
// Not JSON, continue checking
|
|
}
|
|
|
|
// Check for CSV/TSV
|
|
const lines = text.split('\n').filter(line => line.trim());
|
|
if (lines.length >= 2) {
|
|
const firstLine = lines[0];
|
|
|
|
// Count delimiters
|
|
const commaCount = (firstLine.match(/,/g) || []).length;
|
|
const tabCount = (firstLine.match(/\t/g) || []).length;
|
|
|
|
// TSV detection
|
|
if (tabCount > 0 && tabCount > commaCount) {
|
|
// Verify consistency across rows
|
|
const isConsistent = lines.slice(0, 5).every(line =>
|
|
(line.match(/\t/g) || []).length === tabCount
|
|
);
|
|
|
|
if (isConsistent) {
|
|
return { format: 'tsv', parsed: text, confidence: 'high' };
|
|
}
|
|
}
|
|
|
|
// CSV detection
|
|
if (commaCount > 0) {
|
|
// Basic consistency check (at least 2 rows with similar comma count)
|
|
const isConsistent = lines.slice(0, 5).every(line => {
|
|
const count = (line.match(/,/g) || []).length;
|
|
return Math.abs(count - commaCount) <= 1; // Allow 1 comma difference
|
|
});
|
|
|
|
if (isConsistent) {
|
|
return { format: 'csv', parsed: text, confidence: 'medium' };
|
|
}
|
|
}
|
|
}
|
|
|
|
return { format: null, parsed: null, confidence: 'low' };
|
|
}
|
|
|
|
// Check if text is a URL
|
|
function isURL(text) {
|
|
try {
|
|
const url = new URL(text.trim());
|
|
return url.protocol === 'http:' || url.protocol === 'https:';
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Detect format from URL extension
|
|
function detectFormatFromURL(url) {
|
|
const urlLower = url.toLowerCase();
|
|
if (urlLower.endsWith('.json')) return 'json';
|
|
if (urlLower.endsWith('.csv')) return 'csv';
|
|
if (urlLower.endsWith('.tsv') || urlLower.endsWith('.tab')) return 'tsv';
|
|
if (urlLower.endsWith('.topojson')) return 'topojson';
|
|
return null;
|
|
}
|
|
|
|
// Fetch and detect format from URL
|
|
async function fetchAndDetectURL(url) {
|
|
try {
|
|
const response = await fetch(url);
|
|
if (!response.ok) {
|
|
throw new Error(`HTTP ${response.status}: ${response.statusText}`);
|
|
}
|
|
|
|
const text = await response.text();
|
|
const detected = detectDataFormat(text);
|
|
|
|
// If no format detected from content, try URL extension
|
|
if (!detected.format) {
|
|
const formatFromURL = detectFormatFromURL(url);
|
|
if (formatFromURL) {
|
|
return {
|
|
format: formatFromURL,
|
|
content: text,
|
|
confidence: 'low',
|
|
source: 'url'
|
|
};
|
|
}
|
|
}
|
|
|
|
return {
|
|
format: detected.format,
|
|
content: text,
|
|
parsed: detected.parsed,
|
|
confidence: detected.confidence,
|
|
source: 'url'
|
|
};
|
|
} catch (error) {
|
|
throw new Error(`Failed to fetch URL: ${error.message}`);
|
|
}
|
|
}
|
|
|
|
// Show detected format confirmation UI
|
|
function showDetectionConfirmation(detection, originalInput) {
|
|
const confirmEl = document.getElementById('dataset-detection-confirm');
|
|
const detectedFormatEl = document.getElementById('detected-format');
|
|
const detectedSourceEl = document.getElementById('detected-source');
|
|
const detectedPreviewEl = document.getElementById('detected-preview');
|
|
const detectedConfidenceEl = document.getElementById('detected-confidence');
|
|
|
|
confirmEl.style.display = 'block';
|
|
|
|
// Show detected format
|
|
detectedFormatEl.textContent = detection.format ? detection.format.toUpperCase() : 'Unknown';
|
|
|
|
// Show source
|
|
detectedSourceEl.textContent = detection.source === 'url' ? 'URL' : 'Inline Data';
|
|
|
|
// Show confidence indicator
|
|
const confidenceClass = detection.confidence === 'high' ? 'high' :
|
|
detection.confidence === 'medium' ? 'medium' : 'low';
|
|
detectedConfidenceEl.className = `detected-confidence ${confidenceClass}`;
|
|
detectedConfidenceEl.textContent = `${detection.confidence} confidence`;
|
|
|
|
// Show preview
|
|
let previewText = '';
|
|
if (detection.source === 'url') {
|
|
previewText = `URL: ${originalInput}\n\n`;
|
|
if (detection.content) {
|
|
const lines = detection.content.split('\n');
|
|
previewText += `Preview (first 10 lines):\n${lines.slice(0, 10).join('\n')}`;
|
|
if (lines.length > 10) {
|
|
previewText += `\n... (${lines.length - 10} more lines)`;
|
|
}
|
|
}
|
|
} else {
|
|
const lines = originalInput.split('\n');
|
|
previewText = lines.slice(0, 15).join('\n');
|
|
if (lines.length > 15) {
|
|
previewText += `\n... (${lines.length - 15} more lines)`;
|
|
}
|
|
}
|
|
detectedPreviewEl.textContent = previewText;
|
|
|
|
// Store detection data for later use
|
|
window.currentDetection = {
|
|
...detection,
|
|
originalInput
|
|
};
|
|
}
|
|
|
|
// Hide detection confirmation UI
|
|
function hideDetectionConfirmation() {
|
|
const confirmEl = document.getElementById('dataset-detection-confirm');
|
|
confirmEl.style.display = 'none';
|
|
window.currentDetection = null;
|
|
}
|
|
|
|
// Show new dataset form
|
|
function showNewDatasetForm(updateURL = true) {
|
|
document.getElementById('dataset-list-view').style.display = 'none';
|
|
document.getElementById('dataset-form-view').style.display = 'block';
|
|
document.getElementById('dataset-form-name').value = '';
|
|
document.getElementById('dataset-form-input').value = '';
|
|
document.getElementById('dataset-form-comment').value = '';
|
|
document.getElementById('dataset-form-error').textContent = '';
|
|
|
|
// Hide detection confirmation
|
|
hideDetectionConfirmation();
|
|
|
|
// Update URL state
|
|
if (updateURL) {
|
|
URLState.update({ view: 'datasets', snippetId: null, datasetId: 'new' });
|
|
}
|
|
|
|
// Add paste handler if not already added
|
|
if (!window.datasetListenersAdded) {
|
|
const inputEl = document.getElementById('dataset-form-input');
|
|
|
|
// Handle paste/input with auto-detection
|
|
inputEl.addEventListener('input', async function () {
|
|
const text = this.value.trim();
|
|
if (!text) {
|
|
hideDetectionConfirmation();
|
|
return;
|
|
}
|
|
|
|
const errorEl = document.getElementById('dataset-form-error');
|
|
errorEl.textContent = '';
|
|
|
|
// Check if it's a URL
|
|
if (isURL(text)) {
|
|
errorEl.textContent = 'Fetching and analyzing URL...';
|
|
|
|
try {
|
|
const detection = await fetchAndDetectURL(text);
|
|
errorEl.textContent = '';
|
|
|
|
if (detection.format) {
|
|
showDetectionConfirmation(detection, text);
|
|
} else {
|
|
errorEl.textContent = 'Could not detect data format from URL. Please check the URL or try pasting the data directly.';
|
|
hideDetectionConfirmation();
|
|
}
|
|
} catch (error) {
|
|
errorEl.textContent = error.message;
|
|
hideDetectionConfirmation();
|
|
}
|
|
} else {
|
|
// Inline data - detect format
|
|
const detection = detectDataFormat(text);
|
|
|
|
if (detection.format) {
|
|
showDetectionConfirmation({
|
|
...detection,
|
|
source: 'inline'
|
|
}, text);
|
|
} else {
|
|
errorEl.textContent = 'Could not detect data format. Please ensure your data is valid JSON, CSV, or TSV.';
|
|
hideDetectionConfirmation();
|
|
}
|
|
}
|
|
});
|
|
|
|
window.datasetListenersAdded = true;
|
|
}
|
|
}
|
|
|
|
// Hide new dataset form
|
|
function hideNewDatasetForm() {
|
|
document.getElementById('dataset-list-view').style.display = 'block';
|
|
document.getElementById('dataset-form-view').style.display = 'none';
|
|
}
|
|
|
|
// Save new dataset
|
|
async function saveNewDataset() {
|
|
const name = document.getElementById('dataset-form-name').value.trim();
|
|
const comment = document.getElementById('dataset-form-comment').value.trim();
|
|
const errorEl = document.getElementById('dataset-form-error');
|
|
|
|
errorEl.textContent = '';
|
|
|
|
// Validation
|
|
if (!name) {
|
|
errorEl.textContent = 'Dataset name is required';
|
|
return;
|
|
}
|
|
|
|
// Check if we have detected data
|
|
if (!window.currentDetection || !window.currentDetection.format) {
|
|
errorEl.textContent = 'Please paste data or URL to detect format';
|
|
return;
|
|
}
|
|
|
|
const detection = window.currentDetection;
|
|
const { format, source, originalInput } = detection;
|
|
|
|
let data;
|
|
let metadata = null;
|
|
|
|
if (source === 'url') {
|
|
// For URL, we already fetched the content
|
|
data = originalInput; // Store the URL string
|
|
|
|
// Calculate metadata from fetched content
|
|
if (detection.content) {
|
|
try {
|
|
metadata = calculateDatasetStats(
|
|
detection.parsed || detection.content,
|
|
format,
|
|
'inline'
|
|
);
|
|
// Override to use actual content size
|
|
metadata.size = new Blob([detection.content]).size;
|
|
} catch (error) {
|
|
console.warn('Failed to calculate metadata:', error);
|
|
}
|
|
}
|
|
} else {
|
|
// Inline data
|
|
if (format === 'json' || format === 'topojson') {
|
|
if (!detection.parsed) {
|
|
errorEl.textContent = 'Invalid JSON data';
|
|
return;
|
|
}
|
|
if (format === 'json' && Array.isArray(detection.parsed) && detection.parsed.length === 0) {
|
|
errorEl.textContent = 'Data array cannot be empty';
|
|
return;
|
|
}
|
|
data = detection.parsed;
|
|
} else if (format === 'csv' || format === 'tsv') {
|
|
const lines = originalInput.trim().split('\n');
|
|
if (lines.length < 2) {
|
|
errorEl.textContent = `${format.toUpperCase()} must have at least a header row and one data row`;
|
|
return;
|
|
}
|
|
data = originalInput.trim();
|
|
}
|
|
}
|
|
|
|
// Check if name already exists
|
|
if (await DatasetStorage.nameExists(name)) {
|
|
errorEl.textContent = 'A dataset with this name already exists';
|
|
return;
|
|
}
|
|
|
|
// Create dataset
|
|
try {
|
|
const dataset = await DatasetStorage.createDataset(name, data, format, source, comment);
|
|
|
|
// If we have metadata from URL fetch, update the dataset
|
|
if (metadata) {
|
|
await DatasetStorage.updateDataset(dataset.id, {
|
|
data: data,
|
|
...metadata
|
|
});
|
|
}
|
|
|
|
hideNewDatasetForm();
|
|
await renderDatasetList();
|
|
|
|
// Track event
|
|
Analytics.track('dataset-create', `Create dataset (${source})`);
|
|
} catch (error) {
|
|
errorEl.textContent = `Failed to save dataset: ${error.message}`;
|
|
}
|
|
}
|
|
|
|
// Delete current dataset
|
|
async function deleteCurrentDataset() {
|
|
const dataset = await getCurrentDataset();
|
|
if (!dataset) return;
|
|
|
|
// Check if dataset is in use
|
|
const usageCount = countSnippetUsage(dataset.name);
|
|
const warningMessage = usageCount > 0
|
|
? `⚠️ Warning: Dataset "${dataset.name}" is currently used by ${usageCount} snippet${usageCount !== 1 ? 's' : ''}.\n\nDeleting this dataset will break those visualizations.`
|
|
: null;
|
|
|
|
confirmGenericDeletion(dataset.name, warningMessage, async () => {
|
|
await DatasetStorage.deleteDataset(dataset.id);
|
|
document.getElementById('dataset-details').style.display = 'none';
|
|
window.currentDatasetId = null;
|
|
await renderDatasetList();
|
|
|
|
// Show success message
|
|
Toast.success('Dataset deleted');
|
|
|
|
// Track event
|
|
trackEventIfAvailable('dataset-delete', 'Delete dataset');
|
|
});
|
|
}
|
|
|
|
// Copy dataset reference to clipboard
|
|
async function copyDatasetReference() {
|
|
const dataset = await getCurrentDataset();
|
|
if (!dataset) return;
|
|
|
|
const reference = `"data": {"name": "${dataset.name}"}`;
|
|
await navigator.clipboard.writeText(reference);
|
|
Toast.success('Dataset reference copied to clipboard!');
|
|
}
|
|
|
|
// Refresh metadata for URL dataset
|
|
async function refreshDatasetMetadata() {
|
|
const dataset = await getCurrentDataset();
|
|
if (!dataset || dataset.source !== 'url') return;
|
|
|
|
const refreshBtn = document.getElementById('refresh-metadata-btn');
|
|
refreshBtn.disabled = true;
|
|
refreshBtn.textContent = '⏳';
|
|
|
|
try {
|
|
const metadata = await fetchURLMetadata(dataset.data, dataset.format);
|
|
|
|
// Update dataset with new metadata
|
|
await DatasetStorage.updateDataset(dataset.id, {
|
|
data: dataset.data,
|
|
...metadata
|
|
});
|
|
|
|
// Refresh the display
|
|
await selectDataset(dataset.id);
|
|
await renderDatasetList();
|
|
|
|
// Brief success indicator
|
|
refreshBtn.textContent = '✓';
|
|
setTimeout(() => {
|
|
refreshBtn.textContent = '🔄';
|
|
refreshBtn.disabled = false;
|
|
}, 1000);
|
|
} catch (error) {
|
|
Toast.error(`Failed to refresh metadata: ${error.message}`);
|
|
refreshBtn.textContent = '🔄';
|
|
refreshBtn.disabled = false;
|
|
}
|
|
}
|
|
|
|
// Create new snippet from current dataset
|
|
async function createNewSnippetFromDataset() {
|
|
const dataset = await getCurrentDataset();
|
|
if (!dataset) return;
|
|
|
|
// Close dataset manager
|
|
closeDatasetManager();
|
|
|
|
// Small delay to ensure UI is ready
|
|
setTimeout(() => {
|
|
// Call the function from snippet-manager.js
|
|
createSnippetFromDataset(dataset.name);
|
|
}, 100);
|
|
}
|
|
|
|
// Export dataset to file
|
|
async function exportCurrentDataset() {
|
|
const dataset = await getCurrentDataset();
|
|
if (!dataset) return;
|
|
|
|
let dataToExport;
|
|
let filename;
|
|
let mimeType;
|
|
|
|
try {
|
|
if (dataset.source === 'url') {
|
|
// For URL datasets, fetch the content and export it
|
|
const response = await fetch(dataset.data);
|
|
if (!response.ok) {
|
|
throw new Error(`HTTP ${response.status}: ${response.statusText}`);
|
|
}
|
|
|
|
const content = await response.text();
|
|
dataToExport = content;
|
|
} else {
|
|
// For inline datasets, export the stored data
|
|
if (dataset.format === 'json' || dataset.format === 'topojson') {
|
|
dataToExport = JSON.stringify(dataset.data, null, 2);
|
|
} else if (dataset.format === 'csv' || dataset.format === 'tsv') {
|
|
dataToExport = dataset.data;
|
|
}
|
|
}
|
|
|
|
// Determine file extension and MIME type
|
|
switch (dataset.format) {
|
|
case 'json':
|
|
filename = `${dataset.name}.json`;
|
|
mimeType = 'application/json';
|
|
break;
|
|
case 'csv':
|
|
filename = `${dataset.name}.csv`;
|
|
mimeType = 'text/csv';
|
|
break;
|
|
case 'tsv':
|
|
filename = `${dataset.name}.tsv`;
|
|
mimeType = 'text/tab-separated-values';
|
|
break;
|
|
case 'topojson':
|
|
filename = `${dataset.name}.topojson`;
|
|
mimeType = 'application/json';
|
|
break;
|
|
default:
|
|
filename = `${dataset.name}.txt`;
|
|
mimeType = 'text/plain';
|
|
}
|
|
|
|
// Create blob and download
|
|
const blob = new Blob([dataToExport], { type: mimeType });
|
|
const url = URL.createObjectURL(blob);
|
|
const link = document.createElement('a');
|
|
link.href = url;
|
|
link.download = filename;
|
|
document.body.appendChild(link);
|
|
link.click();
|
|
document.body.removeChild(link);
|
|
URL.revokeObjectURL(url);
|
|
|
|
// Show success message
|
|
Toast.success(`Dataset "${dataset.name}" exported successfully`);
|
|
|
|
// Track event
|
|
Analytics.track('dataset-export', `Export dataset (${dataset.format})`);
|
|
|
|
} catch (error) {
|
|
Toast.error(`Failed to export dataset: ${error.message}`);
|
|
}
|
|
}
|
|
|
|
// Detect format from file extension
|
|
function detectFormatFromFilename(filename) {
|
|
const lower = filename.toLowerCase();
|
|
if (lower.endsWith('.json')) return 'json';
|
|
if (lower.endsWith('.csv')) return 'csv';
|
|
if (lower.endsWith('.tsv') || lower.endsWith('.tab') || lower.endsWith('.txt')) return 'tsv';
|
|
if (lower.endsWith('.topojson')) return 'topojson';
|
|
return null;
|
|
}
|
|
|
|
// Import dataset from file
|
|
async function importDatasetFromFile(fileInput) {
|
|
const file = fileInput.files[0];
|
|
if (!file) return;
|
|
|
|
try {
|
|
// Read file content
|
|
const text = await file.text();
|
|
|
|
// Try to detect format from filename first
|
|
let formatHint = detectFormatFromFilename(file.name);
|
|
|
|
// Auto-detect format from content
|
|
const detection = detectDataFormat(text);
|
|
|
|
// Use filename hint if content detection is uncertain
|
|
let format = detection.format;
|
|
if (!format && formatHint) {
|
|
format = formatHint;
|
|
}
|
|
|
|
if (!format) {
|
|
Toast.error('Could not detect data format from file. Please ensure the file contains valid JSON, CSV, or TSV data.');
|
|
return;
|
|
}
|
|
|
|
// Generate default name from filename (remove extension)
|
|
let baseName = file.name.replace(/\.(json|csv|tsv|txt|topojson)$/i, '');
|
|
|
|
// Check if name already exists and make it unique
|
|
let datasetName = baseName;
|
|
let wasRenamed = false;
|
|
let counter = 1;
|
|
while (await DatasetStorage.nameExists(datasetName)) {
|
|
wasRenamed = true;
|
|
// Add timestamp-based suffix for uniqueness
|
|
const timestamp = Date.now().toString().slice(-6); // Last 6 digits of timestamp
|
|
datasetName = `${baseName}_${timestamp}`;
|
|
|
|
// If still exists (unlikely), add a counter
|
|
if (await DatasetStorage.nameExists(datasetName)) {
|
|
datasetName = `${baseName}_${timestamp}_${counter}`;
|
|
counter++;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Prepare data based on format
|
|
let data;
|
|
if (format === 'json' || format === 'topojson') {
|
|
if (!detection.parsed) {
|
|
Toast.error('Invalid JSON data in file.');
|
|
return;
|
|
}
|
|
data = detection.parsed;
|
|
} else if (format === 'csv' || format === 'tsv') {
|
|
const lines = text.trim().split('\n');
|
|
if (lines.length < 2) {
|
|
Toast.error(`${format.toUpperCase()} file must have at least a header row and one data row.`);
|
|
return;
|
|
}
|
|
data = text.trim();
|
|
}
|
|
|
|
// Create dataset
|
|
await DatasetStorage.createDataset(
|
|
datasetName,
|
|
data,
|
|
format,
|
|
'inline',
|
|
`Imported from file: ${file.name}`
|
|
);
|
|
|
|
// Refresh the list
|
|
await renderDatasetList();
|
|
|
|
// Show success message with rename notification if applicable
|
|
if (wasRenamed) {
|
|
Toast.warning(`Dataset name "${baseName}" was already taken, so your dataset was automatically renamed to "${datasetName}".`);
|
|
} else {
|
|
Toast.success(`Dataset "${datasetName}" imported successfully!`);
|
|
}
|
|
|
|
// Track event
|
|
Analytics.track('dataset-import', `Import dataset (${format})`);
|
|
|
|
} catch (error) {
|
|
Toast.error(`Failed to import dataset: ${error.message}`);
|
|
} finally {
|
|
// Reset file input
|
|
fileInput.value = '';
|
|
}
|
|
}
|