Add settings page for managing forecasting API key and URL via UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/recharts/lib/util/DOMUtils.js

@@ -0,0 +1,137 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getTextMeasurementConfig = exports.getStringSize = exports.getStringCacheStats = exports.configureTextMeasurement = exports.clearStringCache = void 0;
+var _Global = require("./Global");
+var _LRUCache = require("./LRUCache");
+function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
+function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
+function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
+function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
+function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
+var defaultConfig = {
+  cacheSize: 2000,
+  enableCache: true
+};
+var currentConfig = _objectSpread({}, defaultConfig);
+var stringCache = new _LRUCache.LRUCache(currentConfig.cacheSize);
+var SPAN_STYLE = {
+  position: 'absolute',
+  top: '-20000px',
+  left: 0,
+  padding: 0,
+  margin: 0,
+  border: 'none',
+  whiteSpace: 'pre'
+};
+var MEASUREMENT_SPAN_ID = 'recharts_measurement_span';
+function createCacheKey(text, style) {
+  // Simple string concatenation for better performance than JSON.stringify
+  var fontSize = style.fontSize || '';
+  var fontFamily = style.fontFamily || '';
+  var fontWeight = style.fontWeight || '';
+  var fontStyle = style.fontStyle || '';
+  var letterSpacing = style.letterSpacing || '';
+  var textTransform = style.textTransform || '';
+  return "".concat(text, "|").concat(fontSize, "|").concat(fontFamily, "|").concat(fontWeight, "|").concat(fontStyle, "|").concat(letterSpacing, "|").concat(textTransform);
+}
+
+/**
+ * Measure text using DOM (accurate but slower)
+ * @param text - The text to measure
+ * @param style - CSS style properties to apply
+ * @returns The size of the text
+ */
+var measureTextWithDOM = (text, style) => {
+  try {
+    var measurementSpan = document.getElementById(MEASUREMENT_SPAN_ID);
+    if (!measurementSpan) {
+      measurementSpan = document.createElement('span');
+      measurementSpan.setAttribute('id', MEASUREMENT_SPAN_ID);
+      measurementSpan.setAttribute('aria-hidden', 'true');
+      document.body.appendChild(measurementSpan);
+    }
+
+    // Apply styles directly without unnecessary object creation
+    Object.assign(measurementSpan.style, SPAN_STYLE, style);
+    measurementSpan.textContent = "".concat(text);
+    var rect = measurementSpan.getBoundingClientRect();
+    return {
+      width: rect.width,
+      height: rect.height
+    };
+  } catch (_unused) {
+    return {
+      width: 0,
+      height: 0
+    };
+  }
+};
+var getStringSize = exports.getStringSize = function getStringSize(text) {
+  var style = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+  if (text === undefined || text === null || _Global.Global.isSsr) {
+    return {
+      width: 0,
+      height: 0
+    };
+  }
+
+  // If caching is disabled, measure directly
+  if (!currentConfig.enableCache) {
+    return measureTextWithDOM(text, style);
+  }
+  var cacheKey = createCacheKey(text, style);
+  var cachedResult = stringCache.get(cacheKey);
+  if (cachedResult) {
+    return cachedResult;
+  }
+
+  // Measure using DOM
+  var result = measureTextWithDOM(text, style);
+
+  // Store in LRU cache
+  stringCache.set(cacheKey, result);
+  return result;
+};
+
+/**
+ * Configure text measurement behavior
+ * @param config - Partial configuration to apply
+ * @returns void
+ */
+var configureTextMeasurement = config => {
+  var newConfig = _objectSpread(_objectSpread({}, currentConfig), config);
+  if (newConfig.cacheSize !== currentConfig.cacheSize) {
+    stringCache = new _LRUCache.LRUCache(newConfig.cacheSize);
+  }
+  currentConfig = newConfig;
+};
+
+/**
+ * Get current text measurement configuration
+ * @returns Current configuration
+ */
+exports.configureTextMeasurement = configureTextMeasurement;
+var getTextMeasurementConfig = () => _objectSpread({}, currentConfig);
+
+/**
+ * Clear the string size cache. Useful for testing or memory management.
+ * @returns void
+ */
+exports.getTextMeasurementConfig = getTextMeasurementConfig;
+var clearStringCache = () => {
+  stringCache.clear();
+};
+
+/**
+ * Get cache statistics for debugging purposes.
+ * @returns Cache statistics including size and max size
+ */
+exports.clearStringCache = clearStringCache;
+var getStringCacheStats = () => ({
+  size: stringCache.size(),
+  maxSize: currentConfig.cacheSize
+});
+exports.getStringCacheStats = getStringCacheStats;