// 判断arr是否为一个数组，返回一个bool值
function isArray(arr) {
	return Object.prototype.toString.call(arr) === '[object Array]';
}

// 深度克隆
export function deepClone(obj) {
	// 对常见的“非”值，直接返回原来值
	if ([null, undefined, NaN, false].includes(obj)) return obj;
	if (typeof obj !== "object" && typeof obj !== 'function') {
		//原始类型直接返回
		return obj;
	}
	let o = isArray(obj) ? [] : {};
	for (let i in obj) {
		if (obj.hasOwnProperty(i)) {
			o[i] = typeof obj[i] === "object" ? deepClone(obj[i]) : obj[i];
		}
	}
	return o;
}

export const appListDbName = 'opendb-app-list'
export const appVersionListDbName = 'opendb-app-versions'
// 版本列表默认显示应用Appid
export const defaultDisplayApp = ''


/**
 * 对比版本号，如需要，请自行修改判断规则
 * 支持比对	("3.0.0.0.0.1.0.1", "3.0.0.0.0.1")	("3.0.0.1", "3.0")	("3.1.1", "3.1.1.1") 之类的
 * @param {Object} v1
 * @param {Object} v2
 * v1 > v2 return 1
 * v1 < v2 return -1
 * v1 == v2 return 0
 */
export function compare(v1 = '0', v2 = '0') {
		v1 = String(v1).split('.')
		v2 = String(v2).split('.')
		const minVersionLens = Math.min(v1.length, v2.length);

		let result = 0;
		for (let i = 0; i < minVersionLens; i++) {
			const curV1 = Number(v1[i])
			const curV2 = Number(v2[i])

			if (curV1 > curV2) {
				result = 1
				break;
			} else if (curV1 < curV2) {
				result = -1
				break;
			}
		}

		if (result === 0 && (v1.length !== v2.length)) {
			const v1BiggerThenv2 = v1.length > v2.length;
			const maxLensVersion = v1BiggerThenv2 ? v1 : v2;
			for (let i = minVersionLens; i < maxLensVersion.length; i++) {
				const curVersion = Number(maxLensVersion[i])
				if (curVersion > 0) {
					v1BiggerThenv2 ? result = 1 : result = -1
					break;
				}
			}
		}

		return result;
	}