60 lines
2.2 KiB
TypeScript
60 lines
2.2 KiB
TypeScript
import {Component, EventEmitter, Input, OnInit, Output} from "@angular/core";
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import {MatFormField, MatInput} from "@angular/material/input";
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import {FormControl, ReactiveFormsModule} from "@angular/forms";
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import {MatAutocompleteModule, MatAutocompleteSelectedEvent} from "@angular/material/autocomplete";
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import {AsyncPipe} from "@angular/common";
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import {map, Observable, startWith} from "rxjs";
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import {LoadingIndicatorComponent} from "@component/common/loading-indicator/loading-indicator.component";
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import {ProfessorResponse} from "@api/v1/professorResponse";
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@Component({
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selector: 'app-professor',
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standalone: true,
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imports: [
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MatAutocompleteModule,
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MatFormField,
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AsyncPipe,
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ReactiveFormsModule,
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MatInput,
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LoadingIndicatorComponent
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],
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templateUrl: './professor.component.html',
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styleUrl: './professor.component.css'
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})
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export class ProfessorComponent implements OnInit {
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protected professorControl = new FormControl();
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protected filteredProfessors!: Observable<ProfessorResponse[]>;
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@Input() professors: ProfessorResponse[] = [];
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@Output() professorSelected = new EventEmitter<number>();
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@Input() professorsLoaded: boolean | null = false;
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@Output() professorsLoadRetry: EventEmitter<void> = new EventEmitter<void>();
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ngOnInit(): void {
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this.filteredProfessors = this.professorControl.valueChanges.pipe(
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startWith(''),
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map(value => this._filterProfessors(value))
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);
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}
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private _filterProfessors(value: string | number): ProfessorResponse[] {
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if (typeof value === 'string') {
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if (value === '') return [];
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const filterValue = value.toLowerCase();
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return this.professors.filter(teacher => teacher.name.toLowerCase().includes(filterValue));
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} else {
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const selectedTeacher = this.professors.find(teacher => teacher.id === value);
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return selectedTeacher ? [selectedTeacher] : [];
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}
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}
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protected onOptionSelected(event: MatAutocompleteSelectedEvent) {
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const selectedOption = this.professors.find(teacher => teacher.id === event.option.value);
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if (selectedOption) {
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this.professorControl.setValue(selectedOption.name);
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this.professorSelected.emit(selectedOption.id);
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}
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}
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}
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