// 双击点赞工具函数

import { likeAssetApi } from './api.js';

// 存储已点赞的作品，key: assetId, value: 点赞日期 (YYYY-MM-DD)
const LIKE_STORAGE_KEY = 'liked_assets_daily';

/**
 * 获取今天日期字符串
 */
function getTodayStr() {
	const now = new Date();
	return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, '0')}-${String(now.getDate()).padStart(2, '0')}`;
}

/**
 * 检查作品今天是否已点赞
 */
function hasLikedToday(assetId) {
	try {
		const storage = uni.getStorageSync(LIKE_STORAGE_KEY) || {};
		const today = getTodayStr();
		return storage[assetId] === today;
	} catch (e) {
		return false;
	}
}

/**
 * 记录作品今天已点赞
 */
function markLikedToday(assetId) {
	try {
		const storage = uni.getStorageSync(LIKE_STORAGE_KEY) || {};
		storage[assetId] = getTodayStr();
		uni.setStorageSync(LIKE_STORAGE_KEY, storage);
	} catch (e) {
		console.error('存储点赞记录失败:', e);
	}
}

/**
 * 清除过期的点赞记录（昨天及之前）
 */
function cleanExpiredLikes() {
	try {
		const storage = uni.getStorageSync(LIKE_STORAGE_KEY) || {};
		const today = getTodayStr();
		const keys = Object.keys(storage);
		keys.forEach(key => {
			if (storage[key] !== today) {
				delete storage[key];
			}
		});
		uni.setStorageSync(LIKE_STORAGE_KEY, storage);
	} catch (e) {
		console.error('清除过期点赞记录失败:', e);
	}
}

/**
 * 双击点赞处理（每天每个作品只能点赞一次）
 * @param {string|number} assetId - 藏品ID
 * @param {Function} callback - 回调函数，参数为是否成功
 */
export function doubleTapLike(assetId, callback) {
	// 清理过期记录
	cleanExpiredLikes();

	// 检查今天是否已点赞
	if (hasLikedToday(assetId)) {
		uni.showToast({ title: '今日已点赞', icon: 'none' });
		return;
	}

	likeAssetApi(assetId).then(res => {
		console.log('点赞成功', res);
		markLikedToday(assetId);
		if (callback) callback(true);
	}).catch(err => {
		console.error('点赞失败:', err);
		uni.showToast({ title: '今日已点赞', icon: 'none' });
		if (callback) callback(false);
	});
}