Initial commit -- Core Cooldown v0.1.0

Portable Windows break timer to prevent RSI and eye strain.
Tauri v2 + Svelte 5 + Tailwind CSS v4. No installer, no telemetry,
no data leaves the machine. CC0 public domain.

src/lib/stores/config.ts

@@ -0,0 +1,149 @@
+import { writable, get } from "svelte/store";
+import { invoke } from "@tauri-apps/api/core";
+
+export interface TimeRange {
+  start: string; // Format: "HH:MM"
+  end: string;   // Format: "HH:MM"
+}
+
+export interface DaySchedule {
+  enabled: boolean;
+  ranges: TimeRange[];
+}
+
+export type { TimeRange, DaySchedule };
+
+export interface Config {
+  break_duration: number;
+  break_frequency: number;
+  auto_start: boolean;
+  break_title: string;
+  break_message: string;
+  fullscreen_mode: boolean;
+  strict_mode: boolean;
+  allow_end_early: boolean;
+  immediately_start_breaks: boolean;
+  working_hours_enabled: boolean;
+  working_hours_schedule: DaySchedule[]; // 7 days: Mon, Tue, Wed, Thu, Fri, Sat, Sun
+  dark_mode: boolean;
+  color_scheme: string;
+  backdrop_opacity: number;
+  notification_enabled: boolean;
+  notification_before_break: number;
+  snooze_duration: number;
+  snooze_limit: number;
+  skip_cooldown: number;
+  sound_enabled: boolean;
+  sound_volume: number;
+  sound_preset: string;
+  idle_detection_enabled: boolean;
+  idle_timeout: number;
+  smart_breaks_enabled: boolean;
+  smart_break_threshold: number;
+  smart_break_count_stats: boolean;
+  show_break_activities: boolean;
+  ui_zoom: number;
+  accent_color: string;
+  break_color: string;
+  countdown_font: string;
+  background_blobs_enabled: boolean;
+  mini_click_through: boolean;
+  mini_hover_threshold: number;
+}
+
+const defaultConfig: Config = {
+  break_duration: 5,
+  break_frequency: 25,
+  auto_start: true,
+  break_title: "Rest your eyes",
+  break_message: "Look away from the screen. Stretch and relax.",
+  fullscreen_mode: true,
+  strict_mode: false,
+  allow_end_early: true,
+  immediately_start_breaks: false,
+  working_hours_enabled: false,
+  working_hours_schedule: [
+    { enabled: true, ranges: [{ start: "09:00", end: "18:00" }] }, // Monday
+    { enabled: true, ranges: [{ start: "09:00", end: "18:00" }] }, // Tuesday
+    { enabled: true, ranges: [{ start: "09:00", end: "18:00" }] }, // Wednesday
+    { enabled: true, ranges: [{ start: "09:00", end: "18:00" }] }, // Thursday
+    { enabled: true, ranges: [{ start: "09:00", end: "18:00" }] }, // Friday
+    { enabled: false, ranges: [{ start: "09:00", end: "18:00" }] }, // Saturday
+    { enabled: false, ranges: [{ start: "09:00", end: "18:00" }] }, // Sunday
+  ],
+  dark_mode: true,
+  color_scheme: "Ocean",
+  backdrop_opacity: 0.92,
+  notification_enabled: true,
+  notification_before_break: 30,
+  snooze_duration: 5,
+  snooze_limit: 3,
+  skip_cooldown: 60,
+  sound_enabled: true,
+  sound_volume: 70,
+  sound_preset: "bell",
+  idle_detection_enabled: true,
+  idle_timeout: 120,
+  smart_breaks_enabled: true,
+  smart_break_threshold: 300,
+  smart_break_count_stats: false,
+  show_break_activities: true,
+  ui_zoom: 100,
+  accent_color: "#ff4d00",
+  break_color: "#7c6aef",
+  countdown_font: "",
+  background_blobs_enabled: true,
+  mini_click_through: true,
+  mini_hover_threshold: 3.0,
+};
+
+export const config = writable<Config>(defaultConfig);
+
+export async function loadConfig() {
+  try {
+    const cfg = await invoke<Config>("get_config");
+    config.set(cfg);
+  } catch (e) {
+    console.error("Failed to load config:", e);
+  }
+}
+
+export async function saveConfig(): Promise<boolean> {
+  try {
+    const cfg = get(config);
+    await invoke("save_config", { config: cfg });
+    return true;
+  } catch (e) {
+    console.error("Failed to save config:", e);
+    return false;
+  }
+}
+
+export async function notifyConfigChanged() {
+  try {
+    const cfg = get(config);
+    await invoke("update_pending_config", { config: cfg });
+  } catch (e) {
+    console.error("Failed to update pending config:", e);
+  }
+}
+
+export async function resetConfig() {
+  try {
+    const cfg = await invoke<Config>("reset_config");
+    config.set(cfg);
+  } catch (e) {
+    console.error("Failed to reset config:", e);
+  }
+}
+
+// Debounced auto-save: updates backend immediately, persists to disk after 400ms idle
+let saveTimer: ReturnType<typeof setTimeout> | null = null;
+
+export function autoSave() {
+  notifyConfigChanged();
+  if (saveTimer) clearTimeout(saveTimer);
+  saveTimer = setTimeout(() => {
+    saveConfig();
+  }, 400);
+}