import {
    execSync as execCommand
} from "node:child_process";

import {
    wireguardInterface
} from "../models.mjs";



export async function startWireguardInterface(interfaceid) {
    try {
        const ifData = wireguardInterface.getById(interfaceid);
        const ifLink = getInterfaceLink(ifData.ifName);

        if (ifLink.operstate == 'UP') {
            console.log(`Reloading interface ${ifData.ifName}`);
            console.log(`» reloading interface ${ifData.ifName}`);
            execCommand(`wg-quick up ${ifData.ifName}`, { stdio: 'inherit' });
            console.log(`✓ reloaded interface ${ifData.ifName}`);
        } else {
            console.log(`» starting interface ${ifData.ifName}`);
            execCommand(`wg-quick up ${ifData.ifName}`, { stdio: 'inherit' });
            console.log(`✓ started interface ${ifData.ifName}`);
        }
    } catch (error) {
        console.error(`✕ failed to start interface ${iface}:`, error.message);
    }
}


export async function getInterfaceLink(ifName) {
    try {
        let result = JSON.parse(
            execCommand(`ip -j link show`, { stdio: 'inherit' })
        ).find(linkResult => linkResult.ifname == ifName);

        if (!result) { return undefined; }

        return result;
    } catch (error) {
        console.error(`failed to get interface link for ${ifName}:`, error.message);
        return undefined;
    }
}