import { CommentProcessor } from "../rdrama/services/CommentProcessor";
import { CommentParser } from "../rdrama/services/CommentParser";
import { CommentPoster } from "../rdrama/services/CommentPoster";
import { MessageService } from "../utils/MessageService";
import { DatabaseService } from "../db/services/Database";
import { RedditService } from "../reddit/services/Reddit";
import RedditSessionManager from "../reddit/session/SessionManager";
import { shouldNotifyUser } from "../utils/ShouldNotify";

class WorkflowOrchestrator {
    constructor(
        private commentProcessor: CommentProcessor,
        private commentParser: CommentParser,
        private commentPoster: CommentPoster,
    ) { }

    /**
     * Executes the defined workflow for processing comments.
     */
    async executeWorkflow() {
        try {
            // Fetch comments from the source
            const comments = await this.commentProcessor.processComments();
            console.log(`Fetched ${comments.length} comments`);

            // Extract and deduplicate usernames from comments
            const allUsernames = comments.flatMap(comment => this.commentParser.extractUsernames(comment));
            const uniqueUsernames = [...new Set(allUsernames)];
            console.log(`Extracted ${uniqueUsernames.length} unique usernames`);

            for (const comment of comments) {
                const redditUsers = this.commentParser.extractUsernames(comment)
                if (redditUsers.length === 0) continue
                console.log('found:', redditUsers)
                const placeholdersRdrama = {
                    author_name: comment.author_name,
                };
                for (const redditUser of redditUsers) {
                    const userMentionExists = await DatabaseService.userMentionExists(redditUser)
                    if (userMentionExists) continue
                    const commentResponseRdrama = MessageService.getRandomRdramaMessage(placeholdersRdrama)
                    if (!commentResponseRdrama) throw new Error('No comments for Rdrama found')
                    const postedComment = await this.commentPoster.postComment(`c_${comment.id}`, `##### TEST MESSAGE NO REDDITOR PINGED (YET...)\n${commentResponseRdrama}`)
                    //const postedComment = await this.commentPoster.postComment(`c_${comment.id}`, ${commentResponse}`)    //TODO uncomment after golive
                    console.log(`Sent Comment to`, JSON.stringify(postedComment, null, 4))
                    const redditSession = await RedditSessionManager.getInstance()
                    const redditService = new RedditService(redditSession)
                    const resultshouldNotifyUser = await shouldNotifyUser(redditUser, redditService)
                    if (!resultshouldNotifyUser) continue
                    const placeholdersReddit = {
                        author_name: comment.author_name,
                        username: redditUser,
                        permalink: comment.permalink
                    };
                    const redditMessage = MessageService.getRandomRedditMessage(placeholdersReddit)
                    if (!redditMessage) throw new Error('No comments for Reddit found')
                    await DatabaseService.insertUserMention({
                        rdrama_comment_id: comment.id,
                        username: redditUser,
                        message: redditMessage,
                    })
                    await redditService.sendMessage(redditUser, 'Crosstalk PM Notification', redditMessage)
                    return;

                }
            }
            console.log('Workflow executed successfully.');
        } catch (error) {
            console.error('An error occurred during workflow execution:', error);
        }
    }
}

export default WorkflowOrchestrator;