import { extension } from '@heyputer/backend/src/extensions';
import fs from 'fs/promises';
import os from 'os';

extension.get(
    '/serverInfo',
    { subdomain: 'api', adminOnly: true },
    async (_req, res) => {
        const osData = {
            platform: os.platform(),
            type: os.type(),
            release: os.release(),
            pretty: `${os.type()} ${os.release()}`,
        };

        const cpus = os.cpus();
        const cpuData = {
            model: cpus[0]?.model || 'Unknown',
            cores: cpus.length,
        };

        const ramData = {
            total: os.totalmem(),
            free: os.freemem(),
            totalGB: (os.totalmem() / 1073741824).toFixed(2),
            freeGB: (os.freemem() / 1073741824).toFixed(2),
        };

        const uptimeSeconds = os.uptime();
        const uptimeData = {
            seconds: uptimeSeconds,
            days: Math.floor(uptimeSeconds / 86400),
            hours: Math.floor((uptimeSeconds % 86400) / 3600),
            minutes: Math.floor((uptimeSeconds % 3600) / 60),
            pretty: `${Math.floor(uptimeSeconds / 86400)}d ${Math.floor((uptimeSeconds % 86400) / 3600)}h ${Math.floor((uptimeSeconds % 3600) / 60)}m`,
        };

        let diskData: Record<string, string> = {
            total: 'N/A',
            free: 'N/A',
            used: 'N/A',
        };
        try {
            const stats = await fs.statfs('/');
            const totalGB = (stats.blocks * stats.bsize) / 1073741824;
            const freeGB = (stats.bfree * stats.bsize) / 1073741824;
            const usedGB = (totalGB - freeGB).toFixed(2);
            diskData = {
                total: totalGB.toFixed(2),
                free: freeGB.toFixed(2),
                used: usedGB,
            };
        } catch (err) {
            console.error('Disk stats error:', err);
        }

        res.json({
            os: osData,
            cpu: cpuData,
            ram: ramData,
            uptime: uptimeData,
            disk: diskData,
            loadavg: os.loadavg(),
            hostname: os.hostname(),
        });
    },
);