import "typings-global";
import * as plugins from "./npmci.plugins";
import { bash } from "./npmci.bash";
import { nvmAvailable } from "./npmci.bash"

export let install = (versionArg) => {
    let done = plugins.q.defer();
    plugins.beautylog.log(`now installing node version ${versionArg}`);
    let version: string;
    if (versionArg == "stable") {
        version = "6.6.0";
    } else if (versionArg == "lts") {
        version = "6.6.0";
    } else if (versionArg == "legacy") {
        version = "6.6.0"
    } else {
        version = versionArg;
    };
    if (nvmAvailable) {
        bash(`nvm install ${version} && nvm alias default ${version}`)
        plugins.beautylog.success(`Node version ${version} successfully installed!`);
    } else {
        plugins.beautylog.warn("Nvm not in path so staying at installed node version!");
    };
    bash("node -v");
    bash("npm -v");
    done.resolve();
    return done.promise;
}