import type { Ref } from 'vue';

import type { RouteLocationNormalized, Router } from 'vue-router';

function makeHelper<T>(

name: string,

helperFunc: () => T,

globalPropKey: string,

) {

let _value: T;

return (value?: T) => {

if (_value != null) {

return _value;

}

if (value == null) {

value = helperFunc();

}

if (value == null) {

value =

getCurrentInstance()?.appContext.app.config.globalProperties[

globalPropKey

];

}

if (value == null) {

throw new Error(`Unable to load ${name}.`);

}

if (process.env.CLIENT) {

_value = value;

}

return value;

};

}

export const router = makeHelper('router', useRouter, '$router');

export const $quasar = makeHelper('Quasar', useQuasar, '$q');

// Route

let _route: Ref<RouteLocationNormalized>;

export function route(router_?: Router) {

if (_route != null) {

return _route;

}

let route: Ref<RouteLocationNormalized> | undefined;

if (route == null) {

route = router(router_).currentRoute;

}

if (route == null) {

throw new Error('Unable to load route.');

}

if (process.env.CLIENT) {

_route = route;

}

return route;

}