1 files changed, 73 insertions, 0 deletions
diff --git a/packages/frontend/src/utility/clicker-game.ts b/packages/frontend/src/utility/clicker-game.ts
new file mode 100644
index 0000000000..0544be7757
--- /dev/null
+++ b/packages/frontend/src/utility/clicker-game.ts
@@ -0,0 +1,73 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { ref, computed } from 'vue';
+import { misskeyApi } from '@/utility/misskey-api.js';
+
+type SaveData = {
+	gameVersion: number;
+	cookies: number;
+	totalCookies: number;
+	totalHandmadeCookies: number;
+	clicked: number;
+	achievements: any[];
+	facilities: any[];
+};
+
+export const saveData = ref<SaveData>();
+export const ready = computed(() => saveData.value != null);
+
+let prev = '';
+
+export async function load() {
+	try {
+		saveData.value = await misskeyApi('i/registry/get', {
+			scope: ['clickerGame'],
+			key: 'saveData',
+		});
+	} catch (err) {
+		if (err.code === 'NO_SUCH_KEY') {
+			saveData.value = {
+				gameVersion: 2,
+				cookies: 0,
+				totalCookies: 0,
+				totalHandmadeCookies: 0,
+				clicked: 0,
+				achievements: [],
+				facilities: [],
+			};
+			save();
+			return;
+		}
+		throw err;
+	}
+
+	// migration
+	if (saveData.value.gameVersion === 1) {
+		saveData.value = {
+			gameVersion: 2,
+			cookies: saveData.value.cookies,
+			totalCookies: saveData.value.cookies,
+			totalHandmadeCookies: saveData.value.cookies,
+			clicked: saveData.value.clicked,
+			achievements: [],
+			facilities: [],
+		};
+		save();
+	}
+}
+
+export async function save() {
+	const current = JSON.stringify(saveData.value);
+	if (current === prev) return;
+
+	await misskeyApi('i/registry/set', {
+		scope: ['clickerGame'],
+		key: 'saveData',
+		value: saveData.value,
+	});
+
+	prev = current;
+}