import Vue from 'vue';

import { SweetAlertOptions } from 'sweetalert2';
import Swal from 'sweetalert2';

type VueSwalInstance = typeof Swal.fire;

declare module 'vue/types/vue' {
    interface Vue {
        $swal: VueSwalInstance;
    }

    interface VueConstructor<V extends Vue = Vue> {
        swal: VueSwalInstance;
    }
}

interface VueSweetalert2Options extends SweetAlertOptions {
    // includeCss?: boolean;
}

class VueSweetalert2 {
    static install(vue: Vue | any, options?: VueSweetalert2Options): void {
        const _swal = (...args: [SweetAlertOptions]) => {
            if (options) {
                const mixed = Swal.mixin(options);
                return  mixed.fire.apply(mixed, args);
            }
            return Swal.fire.apply(Swal, args);
        };

        for (let k in Swal) {
            if (Swal.hasOwnProperty(k) && typeof Swal[k] === 'function') {
                _swal[k] = (...args) => {
                    return Swal[k].apply(Swal, args);
                };
            }
        }

        vue['swal'] = _swal;

        // add the instance method
        if (!vue.prototype.hasOwnProperty('$swal')) {
            vue.prototype.$swal = _swal;
        }
    }
}

export default VueSweetalert2;