77 lines
2.2 KiB
TypeScript

import { Component, ElementRef, ViewChild, effect, inject } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormControl, ReactiveFormsModule } from '@angular/forms';
import { ChatStore, MessageStore } from './chat.store';
import { ActivatedRoute } from '@angular/router';
import { Sidebar } from '../core/layout/sidebar/sidebar';
import { Loader } from '../shared/loader/loader';
import { InfiniteScroll } from '../core/directives/infinite-scroll';
import { environment } from '../../environments/environment.development';
@Component({
selector: 'app-chat',
standalone: true,
imports: [CommonModule, ReactiveFormsModule, Sidebar, Loader, InfiniteScroll],
templateUrl: './chat.html',
styleUrl: './chat.css',
})
export class Chat {
protected readonly messageStore = inject(MessageStore);
private readonly route = inject(ActivatedRoute);
@ViewChild('scrollContainer') private scrollContainer!: ElementRef;
messageControl = new FormControl('');
constructor() {
// Scroll to bottom when messages change
effect(() => {
const loading = this.messageStore.isLoading();
setTimeout(() => {
this.scrollToBottom();
}, 50);
});
}
ngOnInit() {
this.route.paramMap.subscribe((params) => {
const urlId = params.get('id');
if (urlId) {
// If an ID exists in the URL, populate it in the store
this.messageStore.setChatId(urlId);
this.messageStore.fetchChatHistory();
}
});
}
errorMessage = '';
sendMessage() {
const value = this.messageControl.value;
if (value && value.trim() && !this.messageStore.isLoading()) {
const words = value.trim().split(/\s+/).length;
if (words > 400) {
this.errorMessage = `Input must be under 400 words (currently ${words} words).`;
return;
}
this.errorMessage = '';
this.messageStore.sendMessage(value.trim());
this.messageControl.setValue('');
}
}
private scrollToBottom(): void {
try {
const el = this.scrollContainer.nativeElement;
el.scrollTop = el.scrollHeight;
} catch (err) {
if (!environment.production) console.log(err);
}
}
protected loadMoreChats() {
this.messageStore.loadOlderMessages();
}
}