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path: root/src/stores/lastPruneTimes.ts
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import { browser } from '$app/environment';
import { writable } from 'svelte/store';

interface LastPruneTimes {
	anime: number;
	chapters: number;
	manga: number;
}

const defaultTimes: LastPruneTimes = {
	anime: 1,
	chapters: 1,
	manga: 1
};

const createStore = () => {
	const { subscribe, set, update } = writable<LastPruneTimes>(
		JSON.parse(
			browser
				? localStorage.getItem('lastPruneTimes') ?? JSON.stringify(defaultTimes)
				: JSON.stringify(defaultTimes)
		)
	);
	let state: LastPruneTimes;

	subscribe((value) => (state = value));

	return {
		subscribe,
		set,
		update,
		reset: () => set(defaultTimes),
		get: () => {
			const keys = Object.keys(defaultTimes);
			const lastPruneTimesKeys = Object.keys(state);

			if (keys.length !== lastPruneTimesKeys.length) {
				return defaultTimes;
			}

			for (const key of keys) {
				if (!lastPruneTimesKeys.includes(key)) {
					return defaultTimes;
				}
			}

			return state;
		},
		setKey: (key: keyof LastPruneTimes, value: unknown) =>
			update((lastPruneTimes) => ({ ...lastPruneTimes, [key]: value }))
	};
};

const lastPruneTimes = createStore();

lastPruneTimes.subscribe((value) => {
	if (browser) {
		localStorage.setItem('lastPruneTimes', JSON.stringify(value));
	}
});

export default lastPruneTimes;