114 lines
2.8 KiB
Dart
114 lines
2.8 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'dart:math';
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import 'package:dio/dio.dart' as dio_lib;
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var dio = dio_lib.Dio();
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// Load mastodon instance url from env
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final instanceUrl = Platform.environment['INSTANCE_URL'];
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// Load mastodon auth token from env
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final authToken = Platform.environment['MASTODON_TOKEN'];
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Future<void> _postOnMastodon(postText) async {
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await dio.post('$instanceUrl/api/v1/statuses',
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data: {'status': postText},
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options:
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dio_lib.Options(headers: {'Authorization': 'Bearer $authToken'}));
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}
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/// Reads a file [fileUri] and adds posts to posts.json
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///
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/// If [fileUri] does not exist, do nothing.
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/// [fileUri] is a plain text file where the posts are separated by empty lines.
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/// posts.json is an array of posts
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Future<void> _importPosts(fileUri) async {
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if (!File(fileUri).existsSync()) {
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return;
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}
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final file = File(fileUri);
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final lines = await file.readAsLines();
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final List<String> posts = [];
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String post = '';
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for (final line in lines) {
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if (line.isEmpty && post != '') {
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posts.add(post);
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print('Added post: $post');
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post = '';
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} else {
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post += '$line\n';
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}
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}
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if (post != '') {
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posts.add(post);
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print('Added post: $post');
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}
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// Read posts.json and add posts to it
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final postsJson = json.decode(await File('/data/posts.json').readAsString());
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postsJson.addAll(posts);
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// Write posts.json
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await File('/data/posts.json').writeAsString(json.encode(postsJson));
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// Delete file
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await file.delete();
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return;
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}
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/// Posts a random string from posts.json to mastodon
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///
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/// If posts.json does not exist, do nothing.
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/// posts.json is an array of posts
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/// If an array is empty, do nothing.
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/// Delete posted post from posts.json
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Future<void> _postRandomPost() async {
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if (!File('/data/posts.json').existsSync()) {
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return;
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}
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final postsJson = json.decode(await File('/data/posts.json').readAsString());
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if (postsJson.isEmpty) {
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return;
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}
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final post = postsJson.removeAt(Random().nextInt(postsJson.length));
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await File('/data/posts.json').writeAsString(json.encode(postsJson));
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await _postOnMastodon(post);
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return;
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}
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void main(List<String> args) async {
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// If posts.json does not exist, create it and write an empty array
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if (!File('/data/posts.json').existsSync()) {
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await File('/data/posts.json').writeAsString(json.encode([]));
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}
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// Import posts from files
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await _importPosts('/data/posts.txt');
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// Post a random post
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await _postRandomPost();
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// Post a random post at random time
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// Random time is between 1 and 8 hours
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// Random time is choosen after every post
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while (true) {
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await Future.delayed(Duration(hours: Random().nextInt(8) + 1));
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await _importPosts('/data/posts.txt');
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await _postRandomPost();
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}
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}
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