import * as os from 'os';
import * as util from 'util';

export function getKubectlArch(): string {
    const arch = os.arch();
    if (arch === 'x64') {
        return 'amd64';
    }
    return arch;
}

export function getkubectlDownloadURL(version: string, arch: string): string {
    switch (os.type()) {
        case 'Linux':
            return util.format('https://storage.googleapis.com/kubernetes-release/release/%s/bin/linux/%s/kubectl', version, arch);

        case 'Darwin':
            return util.format('https://storage.googleapis.com/kubernetes-release/release/%s/bin/darwin/%s/kubectl', version, arch);

        case 'Windows_NT':
        default:
            return util.format('https://storage.googleapis.com/kubernetes-release/release/%s/bin/windows/%s/kubectl.exe', version, arch);
    }
}

export function getExecutableExtension(): string {
    if (os.type().match(/^Win/)) {
        return '.exe';
    }
    return '';
}