79 lines
2.8 KiB
TypeScript
79 lines
2.8 KiB
TypeScript
import * as BackgroundFetch from 'expo-background-task';
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import * as TaskManager from 'expo-task-manager';
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import { isFileUploaded, markFileAsUploaded } from './db';
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import { getMediaByDateRange } from './media';
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const BACKGROUND_UPLOAD_TASK = 'background-upload-task';
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// 注册后台任务
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export const registerBackgroundUploadTask = async () => {
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try {
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// 初始化数据库表
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// initUploadTable();
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// 检查是否已经注册了任务
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const isRegistered = await TaskManager.isTaskRegisteredAsync(BACKGROUND_UPLOAD_TASK);
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if (isRegistered) {
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await BackgroundFetch.unregisterTaskAsync(BACKGROUND_UPLOAD_TASK);
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}
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// 注册后台任务
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await BackgroundFetch.registerTaskAsync(BACKGROUND_UPLOAD_TASK, {
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minimumInterval: 15 * 60, // 15 分钟
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});
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console.log('Background task registered');
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return true;
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} catch (error) {
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console.error('Error registering background task:', error);
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return false;
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}
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};
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// 定义后台任务
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TaskManager.defineTask(BACKGROUND_UPLOAD_TASK, async () => {
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try {
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const now = new Date();
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const oneDayAgo = new Date(now.getTime() - 24 * 60 * 60 * 1000);
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// 获取最近24小时的媒体文件
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const media = await getMediaByDateRange(oneDayAgo, now);
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// 过滤已上传文件（以 uri 为唯一标识）
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const filesToUpload = [];
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for (const file of media) {
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const uploaded = await isFileUploaded(file.uri);
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if (!uploaded) filesToUpload.push(file);
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}
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if (filesToUpload.length === 0) {
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console.log('No media files to upload');
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return BackgroundFetch.BackgroundTaskResult.Success;
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}
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// 上传未上传文件
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let successCount = 0;
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for (const file of filesToUpload) {
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// 这里假设有 uploadSingleMedia 函数，或直接使用 index.ts 的 processMediaUpload
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try {
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// 你可以根据实际情况替换为自己的上传逻辑
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const { processMediaUpload } = await import('./index');
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const result = await processMediaUpload(file);
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if (result.originalSuccess) {
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markFileAsUploaded(file.uri);
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successCount++;
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}
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} catch (e) {
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console.error('Upload failed for', file.uri, e);
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}
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}
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console.log(`Background upload completed. Success: ${successCount}/${filesToUpload.length}`);
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return successCount > 0
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? BackgroundFetch.BackgroundTaskResult.Success
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: BackgroundFetch.BackgroundTaskResult.Failed;
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} catch (error) {
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console.error('Background task error:', error);
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return BackgroundFetch.BackgroundTaskResult.Failed;
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}
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}); |