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3 changed files with 25 additions and 10 deletions

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@ -1,22 +1,32 @@
import { Comment } from '../models/Comment';
/**
* A utility class for parsing Reddit comments.
*/
export class CommentParser {
/**
* Extracts Reddit usernames from the body of a single comment.
* @param comment A single Comment object to be processed.
* @returns An array of unique Reddit usernames found in the comment.
* This method looks for patterns that match Reddit usernames, which start with "/u/" or "u/",
* and collects them into a Set to ensure uniqueness. It then returns an array of these unique usernames,
* all in lowercase to maintain consistency.
*
* @param {Comment} comment - A single Comment object to be processed.
* @returns {string[]} An array of unique Reddit usernames found in the comment.
*/
public static extractUsernames(comment: Comment): string[] {
const regexPattern: RegExp = /(^|\s|\\r\\n|\\t|[".,;(){}\[\]!?@#])(\/?u\/[a-zA-Z0-9_]+)/g;
// Define the regex pattern to match Reddit usernames. It looks for the "/u/" prefix,
// optionally preceded by certain characters (like whitespace or punctuation),
// followed by the username consisting of alphanumeric characters and underscores.
const regexPattern: RegExp = /(^|\s|\\r\\n|\\t|[".,;(){}\[\]!?@#])(\/?u\/[a-zA-Z0-9_\-]+)/g;
const foundUsernames: Set<string> = new Set();
const matches = comment.body.match(regexPattern);
if (matches) {
matches.forEach(match => {
// Ensure the username is captured in a standardized format
const usernameMatch = match.trim().match(/\/?u\/([a-zA-Z0-9_]+)/);
// Extract the username part from the match, ensuring it's in a consistent format.
const usernameMatch = match.trim().match(/\/?u\/([a-zA-Z0-9_\-]+)/);
if (usernameMatch) {
// Standardize to "username" format
// Convert the username to lowercase and add it to the Set to ensure uniqueness.
const username = `${usernameMatch[1].toLowerCase()}`;
foundUsernames.add(username);
}

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@ -26,7 +26,12 @@ class SessionManager {
enableOfflineQueue: true
},
maxConcurrent: 1, // Maximum number of concurrent requests
minTime: 1000 // Minimum time between dispatches of requests in milliseconds
minTime: 1000, // Minimum time between dispatches of requests in milliseconds
reservoir: 41, // Initial reservoir value for the first hour
reservoirRefreshAmount: 41, // Reservoir value to reset to every hour
reservoirRefreshInterval: 60 * 60 * 1000, // Interval to reset the reservoir (1 hour in milliseconds)
highWater: 5, // Maximum number of queued jobs.
strategy: Bottleneck.strategy.OVERFLOW_PRIORITY // Strategy to drop the oldest jobs in the queue when highWater is reached
});
this.axiosInstance = axios.create({
@ -82,13 +87,13 @@ class SessionManager {
// Wrap the post method
const originalPost = instance.post;
instance.post = <T = any, R = AxiosResponse<T>>(url: string, data?: any, config?: AxiosRequestConfig): Promise<R> => {
return this.limiter.schedule(() => originalPost.apply(instance, [url, data, config])) as Promise<R>;
return this.limiter.schedule({ priority: 1 }, () => originalPost.apply(instance, [url, data, config])) as Promise<R>;
};
// Wrap the put method
const originalPut = instance.put;
instance.put = <T = any, R = AxiosResponse<T>>(url: string, data?: any, config?: AxiosRequestConfig): Promise<R> => {
return this.limiter.schedule(() => originalPut.apply(instance, [url, data, config])) as Promise<R>;
return this.limiter.schedule({ priority: 1 }, () => originalPut.apply(instance, [url, data, config])) as Promise<R>;
};
// Wrap the delete method

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@ -32,7 +32,7 @@ class WorkflowOrchestrator {
async processComment(comment: Comment) {
const redditUsers = CommentParser.extractUsernames(comment);
if (redditUsers.length === 0) return;
console.log('found:', redditUsers);
console.log(`${comment.permalink} found:`, redditUsers);
await this.postCommentAndNotify(comment, redditUsers[0]);
}