Updates

client/settings.js

@@ -0,0 +1,96 @@
+/**
+ * Desktop UI preferences (theme, density, chart options).
+ * Stored under Pear.config.storage or ~/.config/peardata/ui-settings.json.
+ */
+import fs from 'fs'
+import path from 'path'
+import os from 'os'
+
+const FILE_NAME = 'ui-settings.json'
+const VERSION = 1
+
+/** @typedef {{
+ *   theme: 'dark'|'light',
+ *   accent: string,
+ *   density: 'comfortable'|'compact'|'spacious',
+ *   sidebarCollapsed: boolean,
+ *   notifyDesktop: boolean,
+ *   comparePeers: boolean,
+ *   chartPoints: number,
+ *   defaultExplore: string,
+ *   reduceMotion: boolean,
+ * }} UiSettings */
+
+/** @returns {UiSettings} */
+export function defaultSettings() {
+  return {
+    theme: 'dark',
+    accent: 'teal',
+    density: 'comfortable',
+    sidebarCollapsed: false,
+    notifyDesktop: true,
+    comparePeers: false,
+    chartPoints: 90,
+    defaultExplore: 'system.io',
+    reduceMotion: false,
+  }
+}
+
+function homeDir() {
+  if (typeof globalThis !== 'undefined' && globalThis.Pear?.config?.storage) {
+    return globalThis.Pear.config.storage
+  }
+  if (process.env.PEARDATA_HOME) return process.env.PEARDATA_HOME
+  if (process.env.PEARDATA_STORAGE) return process.env.PEARDATA_STORAGE
+  const base =
+    process.env.XDG_CONFIG_HOME ||
+    (process.platform === 'darwin'
+      ? path.join(os.homedir(), 'Library', 'Application Support')
+      : path.join(os.homedir(), '.config'))
+  return path.join(base, 'peardata')
+}
+
+export function settingsPath() {
+  return path.join(homeDir(), FILE_NAME)
+}
+
+export function loadSettings() {
+  const defaults = defaultSettings()
+  try {
+    const raw = JSON.parse(fs.readFileSync(settingsPath(), 'utf8'))
+    return { ...defaults, ...(raw?.settings || raw || {}) }
+  } catch {
+    return defaults
+  }
+}
+
+/** @param {Partial<UiSettings>} patch */
+export function saveSettings(patch) {
+  const next = { ...loadSettings(), ...patch }
+  const dir = homeDir()
+  try {
+    fs.mkdirSync(dir, { recursive: true })
+    fs.writeFileSync(
+      settingsPath(),
+      JSON.stringify({ version: VERSION, settings: next, updatedAt: new Date().toISOString() }, null, 2)
+    )
+  } catch {
+    // ignore persistence failures in restricted runtimes
+  }
+  return next
+}
+
+/**
+ * Apply settings to document body/html datasets (PearDock-style).
+ * @param {UiSettings} s
+ */
+export function applySettingsToDom(s) {
+  const html = document.documentElement
+  const body = document.body
+  html.dataset.theme = s.theme
+  body.dataset.theme = s.theme
+  body.dataset.accent = s.accent || 'teal'
+  body.dataset.density = s.density || 'comfortable'
+  body.dataset.reduceMotion = s.reduceMotion ? '1' : '0'
+  body.classList.toggle('sidebar-collapsed', Boolean(s.sidebarCollapsed))
+}