index.js

const axios = require('axios');
const fs = require('fs');
require('dotenv').config();

// Configuration
const WEBHOOK_URL = process.env.WEBHOOK_URL;
const API_URL = process.env.API_URL || 'https://api.modifold.com/projects?type=mod&sort=recent&limit=20';
const DATA_FILE = process.env.DATA_FILE || './sent_projects.json';
const INTERVAL_MINUTES = Number(process.env.CHECK_INTERVAL_MINUTES || 2);
const CHECK_INTERVAL_MS = Number.isFinite(INTERVAL_MINUTES) && INTERVAL_MINUTES > 0 ? INTERVAL_MINUTES * 60 * 1000 : 2 * 60 * 1000;

if(!WEBHOOK_URL) {
    console.error('WEBHOOK_URL is not set. Add it to .env');
    process.exit(1);
}

if(!(Number.isFinite(INTERVAL_MINUTES) && INTERVAL_MINUTES > 0)) {
    console.warn('CHECK_INTERVAL_MINUTES is invalid. Using default: 2 minutes.');
}

if(!fs.existsSync(DATA_FILE)) {
    fs.writeFileSync(DATA_FILE, JSON.stringify([]));
    console.log("Data file was created.");
}

// Load already posted project IDs
const getSentIds = () => JSON.parse(fs.readFileSync(DATA_FILE, 'utf-8'));

// Save a newly posted project ID
const saveSentId = (id) => {
    const ids = getSentIds();
    ids.push(id);
    fs.writeFileSync(DATA_FILE, JSON.stringify(ids));
};

async function checkAndPost() {
    try {
        const response = await axios.get(API_URL);
        const projects = response.data.projects;
        const sentIds = getSentIds();

        const newProjects = projects.filter(p => !sentIds.includes(p.id)).reverse();

        for(const project of newProjects) {
            // Build embed payload according to Discord limits
            const embed = {
                title: project.title.substring(0, 256), // Title limit
                url: `https://modifold.com/mod/${project.slug}`,
                description: (project.summary || "No description").substring(0, 2048),
                color: 3177968, // HEX #F15400
                thumbnail: project.icon_url ? { url: project.icon_url } : null,
                fields: [
                    { 
                        name: "Type", 
                        value: project.project_type === "mod" ? "New Release" : "Project", 
                        inline: true 
                    },
                    { 
                        name: "Developer", 
                        value: project.owner?.username || "Unknown", 
                        inline: true 
                    }
                ],
                footer: {
                    text: "Modifold • New Release",
                    icon_url: "https://modifold.com/images/apple-touch-icon-180x180.png"
                },
                // Use strict ISO timestamp format
                timestamp: new Date(project.created_at).toISOString()
            };

            // Discord expects embeds as an array
            await axios.post(WEBHOOK_URL, {
                embeds: [embed]
            }).catch(err => {
                console.error("Discord error details:", err.response?.data);
            });
            
            saveSentId(project.id);
            console.log(`[${new Date().toLocaleTimeString()}] Posted: ${project.title}`);
            
            await new Promise(resolve => setTimeout(resolve, 1000));
        }
    } catch (error) {
        console.error("Request error:", error.message);
    }
}

console.log(`Monitoring started. Interval: ${CHECK_INTERVAL_MS / 60000} minute(s).`);
setInterval(checkAndPost, CHECK_INTERVAL_MS);
checkAndPost();