Extract publication edition into a separated component.

frontend/src/app/components/publication-edition/publication-edition.component.ts

@@ -0,0 +1,155 @@
+import { CommonModule, Location } from "@angular/common";
+import { Component, EventEmitter, inject, Input, OnChanges, OnDestroy, Output } from "@angular/core";
+import { FormBuilder, FormControl, FormGroup, ReactiveFormsModule, Validators } from "@angular/forms";
+import { MatDialogModule } from "@angular/material/dialog";
+import { MatIconModule } from "@angular/material/icon";
+import { MatInputModule } from "@angular/material/input";
+import { MatProgressSpinnerModule } from "@angular/material/progress-spinner";
+import { MatTabsModule } from "@angular/material/tabs";
+import { MatTooltipModule } from "@angular/material/tooltip";
+import { map, Observable, of, Subscription } from "rxjs";
+import { Publication } from "../../core/rest-services/publications/model/publication";
+import { PictureSelectionDialog } from "../../pages/publication-edition/picture-selection-dialog/picture-selection-dialog.component";
+import { SubmitButtonComponent } from "../submit-button/submit-button.component";
+import { PublicationEditionService } from "./publication-edition.service";
+
+@Component({
+    selector: 'app-publication-edition',
+    standalone: true,
+    templateUrl: './publication-edition.component.html',
+    styleUrl: './publication-edition.component.scss',
+    imports: [
+        CommonModule,
+        MatDialogModule,
+        MatIconModule,
+        MatInputModule,
+        MatProgressSpinnerModule,
+        MatTabsModule,
+        MatTooltipModule,
+        PictureSelectionDialog,
+        ReactiveFormsModule,
+        SubmitButtonComponent
+    ],
+    providers: [PublicationEditionService]
+})
+export class PublicationEditionComponent implements OnChanges, OnDestroy {
+    @Input()
+    publication!: Publication;
+    @Input()
+    isSaving$: Observable<boolean> = of(false);
+    @Output()
+    publicationSave = new EventEmitter<Publication>();
+
+    private readonly formBuilder = inject(FormBuilder);
+    private readonly location = inject(Location);
+    private readonly publicationEditionService = inject(PublicationEditionService);
+    private publicationInEdition!: Publication;
+    private subscriptions: Subscription[] = [];
+
+    publicationEditionForm: FormGroup = this.formBuilder.group({
+        title: new FormControl<string | undefined>('', [Validators.required]),
+        description: new FormControl<string | undefined>('', [Validators.required]),
+        text: new FormControl<string | undefined>('', [Validators.required]),
+        illustrationId: new FormControl<string | undefined>('', [Validators.required]),
+        categoryId: new FormControl<string | undefined>('', [Validators.required])
+    });
+
+    get isLoading$(): Observable<boolean> {
+        return this.publicationEditionService.isLoading$;
+    }
+
+    get isPreviewing$(): Observable<boolean> {
+        return this.publicationEditionService.isPreviewing$;
+    }
+
+    ngOnChanges(): void {
+        this.ngOnDestroy();
+
+        this.publicationInEdition = this.publication;
+        this.publicationEditionService.init(this.publicationInEdition);
+
+        ['title', 'description', 'text'].forEach(fieldName => {
+            const fieldSubscription = this.publicationEditionForm.controls[fieldName].valueChanges
+                .pipe(
+                    map(value => value?.length ? value as string : '')
+                )
+                .subscribe(fieldValue => {
+                    switch (fieldName) {
+                        case 'title':
+                            this.publicationEditionService.editTitle(fieldValue);
+                            break;
+                        case 'description':
+                            this.publicationEditionService.editDescription(fieldValue);
+                            break;
+                        case 'text':
+                            this.publicationEditionService.editText(fieldValue);
+                            break;
+                        default:
+                            break;
+                    }
+                });
+            this.subscriptions.push(fieldSubscription);
+        });
+
+        const publicationSubscription = this.publicationEditionService.state$.subscribe(state => {
+            this.publicationInEdition = state.publication;
+            this.publicationEditionForm.controls['title'].setValue(this.publication.title, { emitEvent: false });
+            this.publicationEditionForm.controls['description'].setValue(this.publication.description, { emitEvent: false });
+            this.publicationEditionForm.controls['text'].setValue(this.publication.text, { emitEvent: false });
+            this.publicationEditionForm.controls['illustrationId'].setValue(this.publication.illustrationId, { emitEvent: false });
+            this.publicationEditionForm.controls['categoryId'].setValue(this.publication.categoryId, { emitEvent: false });
+        });
+        this.subscriptions.push(publicationSubscription);
+    }
+
+    ngOnDestroy(): void {
+        this.subscriptions.forEach(subscription => subscription?.unsubscribe());
+    }
+
+    goPreviousLocation(): void {
+        this.location.back();
+    }
+
+    insertTitle(titleNumber: number): void {
+        this.publicationEditionService.insertTitle(titleNumber);
+    }
+
+    selectAPicture(): void {
+        this.publicationEditionService.selectAPicture();
+    }
+
+    insertLink(): void {
+        this.publicationEditionService.insertLink();
+    }
+
+    displayCodeBlockDialog(): void {
+        this.publicationEditionService.displayCodeBlockDialog();
+    }
+
+    save(): void {
+        this.publicationSave.emit(this.publicationInEdition);
+    }
+
+    displayPictureSectionDialog(): void {
+        this.publicationEditionService.displayPictureSectionDialog();
+    }
+
+    updateCursorPosition(event: KeyboardEvent | MouseEvent): void {
+        if (event.target) {
+            const textarea = event.target as HTMLTextAreaElement;
+
+            const positionStart = textarea.selectionStart;
+            const positionEnd = textarea.selectionEnd;
+
+            const selectedCharacterCount = positionEnd - positionStart;
+            console.log(`cursor position updated: [${positionStart}, ${positionEnd}] (${selectedCharacterCount})`);
+            this.publicationEditionService.editCursorPosition(positionStart, positionEnd);
+        }
+    }
+
+    onTabChange(tabSelectedIndex: number): void {
+        if (tabSelectedIndex === 1) {
+            this.publicationEditionService.loadPreview();
+        }
+    }
+}