import { NgModule, ErrorHandler, LOCALE_ID } from '@angular/core';
import { HttpModule } from '@angular/http';
import { NgCalendarModule } from 'ionic2-calendar';
import { SQLite } from '@ionic-native/sqlite';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/toPromise';
...

@NgModule({
  ...
  imports: [
    HttpModule,
    NgCalendarModule,
  ],
  ...
  providers: [
    {provide: ErrorHandler, useClass: IonicErrorHandler},
    { provide: LOCALE_ID, useValue: 'pt-Br' },  
    SQLite,
  ]
 ...

    IonicModule.forRoot(MyApp, {
        monthNames: ['janeiro', 'fevereiro', 'mar\u00e7o', ... ],
        monthShortNames: ['jan', 'fev', 'mar', ... ],
        dayNames: ['domingo', 'segunda-feira', 'ter\u00e7a-feira', ... ],
        dayShortNames: ['dom', 'seg', 'ter', ... ],
    })

...
import { IonicPage, NavController, NavParams, ModalController, AlertController  } from 'ionic-angular';
import * as moment from 'moment';
import { EventProvider } from '../../providers/event/event';]
...

export class CalendarPage {

  eventSource = [];
  viewTitle: string;
  noEventsLabel: string = "Não há eventos listados";
  selectedDay = new Date();
  calendar = {
    mode: 'month',
    locale: 'pt-br',
    currentDate: new Date()
  };

  constructor(public navCtrl: NavController, public navParams: NavParams, private modalCtrl: ModalController, private alertCtrl: AlertController, 
    public ep: EventProvider) {
    moment.locale('pt-br');   
    this.get();
  }

get(){
  this.ep.getAll()
  .then((e: any[]) => {
    for (let i = 0; i < e.length; i++) {
      let ev = { id: e[i].id, title:e[i].title, startTime: new Date(e[i].startTime), endTime: new Date(e[i].endTime), allDay: e[i].allDay, notification: e[i].notification , subText: null };
      this.eventSource.push(ev);
    }
    console.log(this.eventSource);
    this.list(null);
  })
  .catch((e) => {console.error(e);});
}

  list(data){
    
    let eventData = data;
    let events = this.eventSource;

    if (data != null){
      eventData.startTime = new Date(data.startTime);
      eventData.endTime = new Date(data.endTime);
      events.push(eventData);
    }

    for (let i = 0; i < events.length; i++) {

      let element = events[i];
     
      if(moment(element.startTime).format('L') == moment(element.endTime).format('L')){
        if(element.allDay == true){
          element.subText = 'O dia todo';
        }else{
          element.subText = moment(element.startTime).format('LTS');
        }
      } else if(parseInt(moment(element.endTime).format('DD')) > parseInt(moment(element.startTime).format('DD'))){

        if(element.allDay == true){
          element.subText = "O dia todo    " + moment(element.startTime).format('L') +" || " + moment(element.endTime).format('L');
        }else{
          element.subText = moment(element.startTime).format('L') +' || ' + moment(element.endTime).format('L');
        }
      }
    }

    this.eventSource = [];
    setTimeout(() => {
      this.eventSource = events;
    });
  }

  addEvent() {
    let modal = this.modalCtrl.create('EventModalPage', {selectedDay: this.selectedDay});
    modal.present();
    modal.onDidDismiss(data => {
      if (data) {
        this.ep.insert(data)
        .then((res: any) => {
          this.list(data);
        })
        .catch((e) => {console.error(e);});
      }
    });
  }

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams, ViewController } from 'ionic-angular';
import * as moment from 'moment';
...

export class EventModalPage {

  event = { id:null, title:null, startTime: moment(new Date()).format(), endTime: moment(new Date()).format(), allDay: false, notification: "00:00", subText: null };
  minDate = moment(new Date()).format();

  constructor(public navCtrl: NavController, public navParams: NavParams, public viewCtrl: ViewController) {
    
    moment.locale('pt-br');

    if(this.navParams.get('ev')){
      let ev = this.navParams.get('ev');
      
      this.event.id = ev.id;
      this.event.allDay = ev.allDay;
      this.event.endTime = moment(ev.endTime).format();
      this.event.startTime = moment(ev.startTime).format();
      this.event.subText = ev.subText;
      this.event.notification = ev.notification;
      this.event.title = ev.title;
    }else{
      let preselectedDate = moment(new Date()).format();
      this.event.startTime = preselectedDate;
      this.event.endTime = preselectedDate;
    }
    
  }

  cancel() {
    this.viewCtrl.dismiss();
  }
 
  save() {
    this.viewCtrl.dismiss(this.event);
  }
}

  delete(ev, act: boolean = false){
    
    var idx = this.eventSource.indexOf(ev, 0);
    if (idx != -1) {
      this.eventSource.splice(idx, 1); 
    }
    if(act == false){
      this.ep.remove(ev.id)
      .then((res: any) => {
        this.list(null);
      })
      .catch((e) => {console.error(e);});
    } 
  }

  edit(ev){
    let modal = this.modalCtrl.create('EventModalPage', {ev: ev});
    modal.present();
    modal.onDidDismiss(data => {
      
      if (data) {
        this.ep.update(data)
        .then((res: any) => {
          this.delete(ev, true);
          this.list(data);
        })
        .catch((e) => {console.error(e);});
      }
    });
  }