152 lines
4.2 KiB
TypeScript
152 lines
4.2 KiB
TypeScript
/* eslint-disable no-console */
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'use client';
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const CURRENT_VERSION = '2.1.0';
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// 版本检查结果枚举
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export enum UpdateStatus {
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HAS_UPDATE = 'has_update', // 有新版本
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NO_UPDATE = 'no_update', // 无新版本
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FETCH_FAILED = 'fetch_failed', // 获取失败
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}
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// 远程版本检查URL配置
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const VERSION_CHECK_URLS = [
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'https://raw.githubusercontent.com/MoonTechLab/LunaTV/main/VERSION.txt',
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];
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/**
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* 检查是否有新版本可用
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* @returns Promise<UpdateStatus> - 返回版本检查状态
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*/
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export async function checkForUpdates(): Promise<UpdateStatus> {
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try {
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// 尝试从主要URL获取版本信息
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const primaryVersion = await fetchVersionFromUrl(VERSION_CHECK_URLS[0]);
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if (primaryVersion) {
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return compareVersions(primaryVersion);
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}
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// 如果主要URL失败，尝试备用URL
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const backupVersion = await fetchVersionFromUrl(VERSION_CHECK_URLS[1]);
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if (backupVersion) {
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return compareVersions(backupVersion);
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}
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// 如果两个URL都失败，返回获取失败状态
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return UpdateStatus.FETCH_FAILED;
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} catch (error) {
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console.error('版本检查失败:', error);
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return UpdateStatus.FETCH_FAILED;
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}
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}
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/**
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* 从指定URL获取版本信息
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* @param url - 版本信息URL
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* @returns Promise<string | null> - 版本字符串或null
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*/
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async function fetchVersionFromUrl(url: string): Promise<string | null> {
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try {
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const controller = new AbortController();
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const timeoutId = setTimeout(() => controller.abort(), 5000); // 5秒超时
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// 添加时间戳参数以避免缓存
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const timestamp = Date.now();
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const urlWithTimestamp = url.includes('?')
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? `${url}&_t=${timestamp}`
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: `${url}?_t=${timestamp}`;
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const response = await fetch(urlWithTimestamp, {
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method: 'GET',
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signal: controller.signal,
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headers: {
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'Content-Type': 'text/plain',
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},
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});
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clearTimeout(timeoutId);
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if (!response.ok) {
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throw new Error(`HTTP error! status: ${response.status}`);
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}
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const version = await response.text();
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return version.trim();
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} catch (error) {
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console.warn(`从 ${url} 获取版本信息失败:`, error);
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return null;
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}
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}
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/**
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* 比较版本号
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* @param remoteVersion - 远程版本号
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* @returns UpdateStatus - 返回版本比较结果
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*/
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function compareVersions(remoteVersion: string): UpdateStatus {
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// 如果版本号相同，无需更新
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if (remoteVersion === CURRENT_VERSION) {
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return UpdateStatus.NO_UPDATE;
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}
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try {
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// 解析版本号为数字数组 [X, Y, Z]
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const currentParts = CURRENT_VERSION.split('.').map((part) => {
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const num = parseInt(part, 10);
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if (isNaN(num) || num < 0) {
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throw new Error(`无效的版本号格式: ${CURRENT_VERSION}`);
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}
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return num;
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});
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const remoteParts = remoteVersion.split('.').map((part) => {
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const num = parseInt(part, 10);
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if (isNaN(num) || num < 0) {
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throw new Error(`无效的版本号格式: ${remoteVersion}`);
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}
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return num;
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});
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// 标准化版本号到3个部分
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const normalizeVersion = (parts: number[]) => {
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if (parts.length >= 3) {
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return parts.slice(0, 3); // 取前三个元素
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} else {
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// 不足3个的部分补0
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const normalized = [...parts];
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while (normalized.length < 3) {
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normalized.push(0);
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}
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return normalized;
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}
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};
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const normalizedCurrent = normalizeVersion(currentParts);
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const normalizedRemote = normalizeVersion(remoteParts);
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// 逐级比较版本号
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for (let i = 0; i < 3; i++) {
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if (normalizedRemote[i] > normalizedCurrent[i]) {
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return UpdateStatus.HAS_UPDATE;
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} else if (normalizedRemote[i] < normalizedCurrent[i]) {
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return UpdateStatus.NO_UPDATE;
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}
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// 如果当前级别相等，继续比较下一级
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}
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// 所有级别都相等，无需更新
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return UpdateStatus.NO_UPDATE;
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} catch (error) {
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console.error('版本号比较失败:', error);
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// 如果版本号格式无效，回退到字符串比较
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return remoteVersion !== CURRENT_VERSION
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? UpdateStatus.HAS_UPDATE
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: UpdateStatus.NO_UPDATE;
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}
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}
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// 导出当前版本号供其他地方使用
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export { compareVersions, CURRENT_VERSION };
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