feat: initial commit - GitHub Stars Manager

services/github.js

@@ -0,0 +1,154 @@
+import Constants from 'expo-constants';
+
+const GITHUB_API_URL = 'https://api.github.com';
+// 用于检查更新的仓库地址，从 app.json extra 中读取
+const APP_REPO = Constants.expoConfig?.extra?.appRepo || 'EchoZenith/GithubStarsManager-Android';
+// 当前版本号从 app.json 中读取（version 字段）
+const CURRENT_VERSION = Constants.expoConfig?.version || '1.0.0';
+
+// 自定义错误类型：Token 过期或无效时抛出，供上层 UI 捕获后跳转 Token 输入页
+class TokenExpiredError extends Error {
+  constructor(message) {
+    super(message);
+    this.name = 'TokenExpiredError';
+  }
+}
+
+export { TokenExpiredError };
+
+// 构建 GitHub API 请求头
+function buildHeaders(token) {
+  return {
+    Authorization: `Bearer ${token}`,
+    Accept: 'application/vnd.github.v3+json',
+  };
+}
+
+// 分页获取用户所有星标仓库（每页 100 条，自动翻页直到取完）
+export async function fetchStarredRepos(token) {
+  if (!token) {
+    throw new TokenExpiredError('请先输入 GitHub Token');
+  }
+
+  let allRepos = [];
+  let page = 1;
+  let hasMore = true;
+
+  while (hasMore) {
+    const response = await fetch(
+      `${GITHUB_API_URL}/user/starred?per_page=100&page=${page}`,
+      {
+        method: 'GET',
+        headers: buildHeaders(token),
+      }
+    );
+
+    if (response.status === 401) {
+      throw new TokenExpiredError('GitHub Token 已过期或无效，请重新输入');
+    }
+
+    if (!response.ok) {
+      throw new Error(`GitHub API 错误！状态码: ${response.status}`);
+    }
+
+    const data = await response.json();
+    if (data.length === 0) {
+      hasMore = false;
+    } else {
+      allRepos = allRepos.concat(data);
+      page++;
+    }
+  }
+
+  return allRepos;
+}
+
+// 获取仓库的 README 原始内容（raw 格式直接返回 markdown 文本）
+export async function fetchReadme(token, fullName) {
+  if (!token) {
+    throw new TokenExpiredError('请先输入 GitHub Token');
+  }
+
+  const response = await fetch(
+    `${GITHUB_API_URL}/repos/${fullName}/readme`,
+    {
+      method: 'GET',
+      headers: {
+        ...buildHeaders(token),
+        Accept: 'application/vnd.github.raw',
+      },
+    }
+  );
+
+  if (response.status === 401) {
+    throw new TokenExpiredError('GitHub Token 已过期或无效，请重新输入');
+  }
+
+  if (response.status === 404) {
+    return null;
+  }
+
+  if (!response.ok) {
+    throw new Error(`获取 README 失败！状态码: ${response.status}`);
+  }
+
+  return await response.text();
+}
+
+// 检查应用更新：对比当前版本与 GitHub Releases 最新版本号
+export async function checkUpdate(token) {
+  try {
+    const headers = {
+      Accept: 'application/vnd.github.v3+json',
+    };
+    if (token) {
+      headers.Authorization = `Bearer ${token}`;
+    }
+
+    const response = await fetch(
+      `${GITHUB_API_URL}/repos/${APP_REPO}/releases/latest`,
+      {
+        method: 'GET',
+        headers,
+      }
+    );
+
+    if (response.status === 404) {
+      return { hasUpdate: false, error: null, message: '未找到发布版本' };
+    }
+
+    if (!response.ok) {
+      return { hasUpdate: false, error: '检查更新失败', message: null };
+    }
+
+    const data = await response.json();
+    const latestVersion = data.tag_name.replace(/^v/, '');
+    const currentParts = CURRENT_VERSION.split('.').map(Number);
+    const latestParts = latestVersion.split('.').map(Number);
+
+    // 逐段比较版本号（major.minor.patch）
+    let hasUpdate = false;
+    for (let i = 0; i < Math.max(currentParts.length, latestParts.length); i++) {
+      const cur = currentParts[i] || 0;
+      const lat = latestParts[i] || 0;
+      if (lat > cur) { hasUpdate = true; break; }
+      if (lat < cur) break;
+    }
+
+    return {
+      hasUpdate,
+      currentVersion: CURRENT_VERSION,
+      latestVersion,
+      releaseUrl: data.html_url,
+      releaseName: data.name || data.tag_name,
+      releaseBody: data.body ? data.body.split('\n').slice(0, 5).join('\n') : '',
+      publishedAt: data.published_at,
+      error: null,
+      message: hasUpdate
+        ? `发现新版本 v${latestVersion}`
+        : '已是最新版本',
+    };
+  } catch (e) {
+    return { hasUpdate: false, error: e.message || '网络错误', message: null };
+  }
+}