import fs from 'fs';
import path from 'path';

export class MessageService {
    private redditMessages: string[] = [];
    private rdramaMessages: string[] = [];

    constructor() {
        this.loadMessages();
    }

    private loadMessages() {
        try {
            const redditMessagesPath = path.join(__dirname, 'messages', 'reddit_messages.txt');
            this.redditMessages = fs.readFileSync(redditMessagesPath, 'utf-8').split('---END---').filter(line => line.trim());
        } catch (error) {
            console.error('Failed to load Reddit messages:', error);
        }

        try {
            const rdramaMessagesPath = path.join(__dirname, 'messages', 'rdrama_messages.txt');
            this.rdramaMessages = fs.readFileSync(rdramaMessagesPath, 'utf-8').split('---END---').filter(line => line.trim());
        } catch (error) {
            console.error('Failed to load rDrama messages:', error);
        }
    }

    public getRandomRedditMessage(placeholders: { [key: string]: string }): string {
        const message = this.redditMessages[Math.floor(Math.random() * this.redditMessages.length)];
        return this.replacePlaceholders(message, placeholders);
    }

    public getRandomRdramaMessage(placeholders: { [key: string]: string }): string {
        const message = this.rdramaMessages[Math.floor(Math.random() * this.rdramaMessages.length)];
        return this.replacePlaceholders(message, placeholders);
    }

    private replacePlaceholders(message: string, placeholders: { [key: string]: string }): string {
        return Object.keys(placeholders).reduce((acc, key) => {
            const regex = new RegExp(`{${key}}`, 'g');
            return acc.replace(regex, placeholders[key]);
        }, message);
    }
}