import { Injectable } from '@angular/core';
import { SlimLoadingBarService } from 'ng2-slim-loading-bar';
import {
    ToastyService,
    ToastyConfig, 
    ToastOptions, 
    ToastData
} from 'ng2-toasty';

import { Subject } from 'rxjs/Subject';
import { Observable } from 'rxjs/Rx';
import { Subscription } from 'rxjs/Subscription';

@Injectable()
export class NotifService{

    constructor(
        private t: ToastyService,
        private slimLoaderService: SlimLoadingBarService
    ) {}

    title: string;
    message: string;
    
    toast(title: string, message: string, type: 'default' | 'info' | 'warning' | 'success' | 'wait' | 'error' = 'default') {
        this.title = title;
        this.message = message;
        let interval = 1000;
        let timeout = 5000;
        let seconds = timeout / 1000;
        let subscription: Subscription;

        let toastOptions: ToastOptions = {
            title: this.title,
            msg: this.message,
            showClose: true,
            timeout: timeout,
            
            onAdd: (toast: ToastData) => {
                // Run the timer with 1 second interval
                // Start listen seconds beat
                let observable = Observable.interval(interval).take(seconds);
                subscription = observable.subscribe((count: number) => {
                    // Update toast
                    toast.title = this.title;
                    toast.msg = this.message;
                });

            },
            onRemove: function(toast: ToastData) {
                subscription.unsubscribe();
            }
        };

        switch (type) {
            case 'default': this.t.default(toastOptions); break;
            case 'info': this.t.info(toastOptions); break;
            case 'success': this.t.success(toastOptions); break;
            case 'wait': this.t.wait(toastOptions); break;
            case 'error': this.t.error(toastOptions); break;
            case 'warning': this.t.warning(toastOptions); break;
        }
    }

    start() {
        this.slimLoaderService.start(() => {
        });
    }

    stop() {
        this.slimLoaderService.stop();
    }

    reset() {
        this.slimLoaderService.reset();
    }

    complete() {
        this.slimLoaderService.complete();
    }
    
}