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

export function parseLeases() {
    const leaseFilePath = '/var/lib/dhcp/dhcpd.leases';
    const fileContent = fs.readFileSync(leaseFilePath, 'utf8');
    const leases = [];

    const leaseBlocks = fileContent.split('lease ');
    leaseBlocks.shift(); // Remove the first empty block

    leaseBlocks.forEach(block => {
        const lease = {};
        const lines = block.split('\n');
        lease.ip = lines[0].trim();

        lines.forEach(line => {
            line = line.trim();
            if (line.startsWith('starts')) {
                lease.start = line.split(' ')[2] + ' ' + line.split(' ')[3];
            } else if (line.startsWith('ends')) {
                lease.end = line.split(' ')[2] + ' ' + line.split(' ')[3];
            } else if (line.startsWith('binding state')) {
                lease.state = line.split(' ')[2];
            } else if (line.startsWith('hardware ethernet')) {
                lease.mac = line.split(' ')[2].replace(';', '');
            } else if (line.startsWith('client-hostname')) {
                lease.hostname = line.split(' ')[1].replace(';', '').replace(/"/g, '');
            }
        });

        leases.push(lease);
    });

    return leases;
}