doneit-web/src/app/shared/chat/messages/messages.page.ts

import { AfterViewChecked, Component, ElementRef, Input, OnChanges, OnInit, SimpleChanges, ViewChild } from '@angular/core';
import { ModalController, NavParams, PopoverController } from '@ionic/angular';
import { Status } from 'src/app/models/chat/status.model';
import { AuthService } from 'src/app/services/auth.service';
import { ChatService } from 'src/app/services/chat.service';
import { ChatOptionsPopoverPage } from 'src/app/shared/popover/chat-options-popover/chat-options-popover.page';
import { MessagesOptionsPage } from 'src/app/shared/popover/messages-options/messages-options.page';
import { ContactsPage } from '../new-group/contacts/contacts.page';

@Component({
  selector: 'app-messages',
  templateUrl: './messages.page.html',
  styleUrls: ['./messages.page.scss'],
})
export class MessagesPage implements OnInit, AfterViewChecked, OnChanges {
  showLoader: boolean;

  @ViewChild('scrollMe') private myScrollContainer: ElementRef;

  loggedUser: any;

  message = '';
  messages:any;
  dm:any;
  userPresence='';
  dmUsers:any;

  @Input() roomId:string;
  
  constructor(
    public popoverController: PopoverController,
    private modalController: ModalController,
    /* private navParams: NavParams, */
    private chatService: ChatService,
    private authService: AuthService,
  ) { 
   /*  this.dm = this.navParams.get('dm'); */
  }
  ngOnChanges(changes: SimpleChanges): void {
    console.log(this.roomId);
    this.load();
    
    //throw new Error('Method not implemented.');
  }

  ngOnInit() {

    this.scrollToBottom();

    this.authService.userData$.subscribe((res:any)=>{
      this.loggedUser=res;
      console.log(this.loggedUser); 
    });
    
    /* setInterval(()=>{ */
      this.load();
    /* }, 9000); */
    console.log(this.roomId);
    
    
  }
  load(){
    this.loadMessages();
    this.getChatMembers();
  }


  doRefresh(ev:any){
    this.load();
    ev.target.complete();
  }
  
  ngAfterViewChecked() {        
    this.scrollToBottom();
    console.log(this.roomId);
  } 
  scrollToBottom(): void {
    try {
        this.myScrollContainer.nativeElement.scrollTop = this.myScrollContainer.nativeElement.scrollHeight;
    } catch(err) { }                 
  }
  loadMoreMessages(ev:any){

  }

  sendMessage(){

    let body = {
      "message": 
      { 
        "rid": this.roomId, "msg": this.message 
      }
    }
    
    this.chatService.sendMessage(body).subscribe(res=> {
      this.loadMessages(); 
    });
    this.message = "";
  }
  
  loadMessages(){
    this.showLoader = true;
    this.chatService.getRoomMessages(this.roomId).subscribe(res => {
      /* console.log(res); */
      this.messages = res['messages'].reverse();
      console.log(this.messages);
      this.showLoader = false;
    })
  }
  getChatMembers(){
    console.log(this.roomId);
    
    this.showLoader = true;
    this.chatService.getMembers(this.roomId).subscribe(res=> {
      this.dmUsers = res['members'].filter(data => data.username != this.loggedUser.me.username)
      console.log(res);
      console.log(this.dmUsers);
      this.showLoader = false;
    });
  }

  async openMessagesOptions(ev: any) {
    const popover = await this.popoverController.create({
      component: MessagesOptionsPage,
      componentProps: {
        roomId: this.dm._id,
      },
      cssClass: 'messages-options',
      event: ev,
      translucent: true,
    });
    return await popover.present();
  }

  async addContacts(){
    const modal = await this.modalController.create({
      component: ContactsPage,
      componentProps: {}, 
      cssClass: 'contacts',
      backdropDismiss: false
    });

    await modal.present();

    modal.onDidDismiss();
  }

  async openChatOptions(ev: any) {
    const popover = await this.popoverController.create({
      component: ChatOptionsPopoverPage,
      cssClass: 'chat-options-popover',
      event: ev,
      translucent: true
    });
    return await popover.present();
  }

}