feat: prevent rapid submissions

Author: hunter-ji

locales.ts

@@ -7,6 +7,7 @@ const en = {
 	'notice.alreadyCheckedIn': 'Already checked in today',
 	'notice.editorUnavailable': 'Editor instance not available',
 	'notice.onlyCheckInInEditMode': 'Please switch to edit mode to check in.',
+	'notice.checkInTooFast': 'You are checking in too frequently. Please wait a moment before trying again.',
 	'card.goalTitle': 'My Goal',
 	'card.goalPlaceholder': 'Define your goal here!',
 	'card.activityHistoryTitle': 'Activity History',
@@ -55,6 +56,7 @@ const zhCN: Record<LocaleKey, string> = {
 	'notice.alreadyCheckedIn': '今天已经打卡了',
 	'notice.editorUnavailable': '无法获取编辑器实例',
 	'notice.onlyCheckInInEditMode': '请切换到编辑模式以进行打卡。',
+	'notice.checkInTooFast': '你打卡得太频繁了，请稍等片刻再试。',
 	'card.goalTitle': '我的目标',
 	'card.goalPlaceholder': '在这里描述你的目标！',
 	'card.activityHistoryTitle': '活动记录',

main.ts

@@ -3,14 +3,14 @@ import CalendarHeatmap, { CalendarHeatmapOptions } from './calendar-heatmap/inde
 import { hasTodayEntry, insertTodayEntry, parseEntries } from './utils';
 import { computeDailyOverview, renderDailyOverview, updateDailyOverview } from './daily-overview';
 import { createTranslator, isLanguageSetting, LanguageSetting, LocaleCode, LocaleKey, resolveLocale, Translator } from './locales';
-import { BlobOptions } from 'buffer';
 
 export default class MyPlugin extends Plugin {
 	settings: MyPluginSettings;
 	private heatmaps: CalendarHeatmap[] = [];
 	private overviewBlocks: HTMLElement[] = [];
 	private locale: LocaleCode = 'en';
 	private translator: Translator = createTranslator('en');
+	private lastCheckInTime: number = 0;
 
 	public t(key: LocaleKey, vars?: Record<string, string | number>): string {
 		return this.translator(key, vars);
@@ -60,6 +60,13 @@ export default class MyPlugin extends Plugin {
 
 	// Safely insert today's entry with a value (prevents duplicates)
 	private insertEntry(value: number): boolean {
+		const now = Date.now();
+		if (now - this.lastCheckInTime < 1000) {
+			new Notice(this.t('notice.checkInTooFast'));
+			return false;
+		}
+		this.lastCheckInTime = now;
+
 		const view = this.getActiveMarkdownView();
 		if (!view) return false;