import { Component, Inject } from '@angular/core';
import { FormBuilder, FormControl, UntypedFormGroup, Validators } from '@angular/forms';
import { MAT_DIALOG_DATA, MatDialog, MatDialogRef } from '@angular/material/dialog';
import { Router } from '@angular/router';
import { Annotation, AnnotationPersist } from '@annotation-service/core/model/annotation.model';
import { AnnotationLookup } from '@annotation-service/core/query/annotation.lookup';
import { AnnotationService } from '@annotation-service/services/http/annotation.service';
import { AnnotationProtectionType } from '@app/core/common/enum/annotation-protection-type.enum';
import { SnackBarNotificationLevel, UiNotificationService } from '@app/core/services/notification/ui-notification-service';
import { EnumUtils } from '@app/core/services/utilities/enum-utils.service';
import { isNullOrUndefined } from '@app/utilities/enhancers/utils';
import { BaseComponent } from '@common/base/base.component';
import { FormService } from '@common/forms/form-service';
import { Guid } from '@common/types/guid';
import { TranslateService } from '@ngx-translate/core';
import { takeUntil } from 'rxjs/operators';
import { nameof } from 'ts-simple-nameof';

@Component({
	selector: 'app-annotation-dialog',
	templateUrl: './annotation-dialog.component.html',
	styleUrls: ['./annotation-dialog.component.scss']
})
export class AnnotationDialogComponent extends BaseComponent {

	annotationProtectionTypeEnumValues = this.enumUtils.getEnumValues<AnnotationProtectionType>(AnnotationProtectionType);
	annotationProtectionTypeEnum = AnnotationProtectionType;

	private entityId: Guid;
	private anchor: string;
	private entityType: string;

	private changesMade: boolean = false;

	public comments = new Array<Annotation>();
	public threads = new Set<Guid>();
	public annotationsCount: number = 0;
	public annotationsPerThread = {};
	public showRepliesPerThread = {};
	public replyEnabledPerThread = {};
	public parentAnnotationsPerThread = {};
	threadReplyTextsFG: Array<UntypedFormGroup>;
	threadFormGroup: UntypedFormGroup;
	private formBuilder: FormBuilder = new FormBuilder();


	constructor(
		public dialogRef: MatDialogRef<AnnotationDialogComponent>,
		@Inject(MAT_DIALOG_DATA) public data: any,
		private router: Router,
		public dialog: MatDialog,
		private uiNotificationService: UiNotificationService,
		private language: TranslateService,
		private annotationService: AnnotationService,
		private formService: FormService,
		private enumUtils: EnumUtils,
	) {
		super();
		this.entityId = data.entityId;
		this.anchor = data.anchor;
		this.entityType = data.entityType;
		dialogRef.backdropClick().pipe(takeUntil(this._destroyed)).subscribe(() => dialogRef.close(this.changesMade));
	}

	ngOnInit(): void {
		this.threadFormGroup = new UntypedFormGroup({
			text: new FormControl(null, [Validators.required]),
			protectionType: new FormControl(AnnotationProtectionType.EntityAccessors, [Validators.required])
		});
		if (this.entityId != null) {
			this.loadThreads();
		}
	}

	createThread() {
		this.formService.removeAllBackEndErrors(this.threadFormGroup);
		this.formService.touchAllFormFields(this.threadFormGroup);
		if (!this.isFormValid(this.threadFormGroup)) {
			return;
		}
		const threadToCreate: AnnotationPersist = {
			threadId: Guid.create(),
			payload: this.threadFormGroup.get('text').value,
			protectionType: this.threadFormGroup.get('protectionType').value,
			entityId: this.entityId,
			entityType: this.entityType,
			anchor: this.anchor
		};
		this.annotationService.persist(threadToCreate).pipe(takeUntil(this._destroyed))
			.subscribe(
				complete => this.onCallbackSuccess(),
				error => this.onCallbackError(error)
			);
	}

	replyThread(threadId: Guid) {
		// if (!this.threadReplyTexts[threadId.toString()] || this.threadReplyTexts[threadId.toString()].length === 0) { return; }
		this.formService.removeAllBackEndErrors(this.threadReplyTextsFG[threadId.toString()]);
		this.formService.touchAllFormFields(this.threadReplyTextsFG[threadId.toString()]);
		if (!this.isFormValid(this.threadReplyTextsFG[threadId.toString()])) {
			return;
		}
		const replyToCreate: AnnotationPersist = {
			threadId: threadId,
			payload: this.threadReplyTextsFG[threadId.toString()].get('replyText').value,
			protectionType: this.parentAnnotationsPerThread[threadId.toString()].protectionType,
			entityId: this.entityId,
			entityType: this.entityType,
			anchor: this.anchor,
			parentId: this.parentAnnotationsPerThread[threadId.toString()].id
		};
		this.annotationService.persist(replyToCreate).pipe(takeUntil(this._destroyed))
			.subscribe(
				complete => this.onCallbackSuccess(),
				error => this.onCallbackError(error)
			);
	}

	private refreshAnnotations() {
		this.threadReplyTextsFG.forEach(element => {
			element.reset();
		});
		this.loadThreads();
	}

	private loadThreads() {
		const lookup: AnnotationLookup = new AnnotationLookup();
		lookup.entityIds = [this.entityId];
		lookup.anchors = [this.anchor];
		lookup.entityTypes = [this.entityType];
		lookup.project = {
			fields: [
				nameof<Annotation>(x => x.id),
				nameof<Annotation>(x => x.threadId),
				nameof<Annotation>(x => x.parent.id),
				nameof<Annotation>(x => x.timeStamp),
				nameof<Annotation>(x => x.author.name),
				nameof<Annotation>(x => x.payload),
				nameof<Annotation>(x => x.protectionType),
			]
		};

		this.annotationService.query(lookup)
			.pipe(takeUntil(this._destroyed))
			.subscribe(
				data => {
					this.annotationsCount = data.count;
					this.annotationsPerThread = {};
					this.parentAnnotationsPerThread = {};
					this.threads = new Set();
					this.threadReplyTextsFG = new Array<UntypedFormGroup>();
					this.resetFormGroup();
					this.comments = data.items.sort((a1, a2) => new Date(a2.timeStamp).getTime() - new Date(a1.timeStamp).getTime());
					this.comments.forEach(element => {
						// this.threadReplyTextsFG.addControl(element.id.toString(), new FormControl(null));
						this.threadReplyTextsFG[element.threadId.toString()] = this.formBuilder.group({ replyText: new FormControl(null, [Validators.required]) });
						this.annotationsPerThread[element.threadId.toString()] = data.items.filter(x => x.threadId === element.threadId && x.id !== element.id).sort((a1, a2) => new Date(a1.timeStamp).getTime() - new Date(a2.timeStamp).getTime());
						this.parentAnnotationsPerThread[element.threadId.toString()] = data.items.filter(x => x.threadId === element.threadId && x.id === element.id)[0];
						this.threads.add(element.threadId);
					});
					console.log(this.parentAnnotationsPerThread);
					// console.log(this.comments);
					// console.log(this.threads);
					// console.log(this.parentAnnotationsPerThread);
					// console.log(this.annotationsPerThread);
					// this.annotationsChanged.emit(this.threads);
				},
				error => this.onCallbackError(error),
			);
	}

	getParentAnnotation(thread: Guid): Annotation {
		return this.parentAnnotationsPerThread[thread.toString()];
	}

	resetFormGroup() {
		this.threadFormGroup.reset();
		this.threadFormGroup.get('protectionType').setValue(AnnotationProtectionType.EntityAccessors);
	}

	isValidText(text: string): boolean {
		return !isNullOrUndefined(text) && text.length !== 0 && text !== '';
	}

	// ngOnInit() {
	// 	const lookup: AnnotationLookup = new AnnotationLookup();
	// 	lookup.entityIds = [this.entityId];
	// 	// lookup.anchors = [this.anchor];
	// 	lookup.entityTypes = [this.entityType];

	// 	this.annotationService.query(lookup).pipe(takeUntil(this._destroyed))
	// 		.subscribe(
	// 			data => {
	// 				this.annotations = data.items;
	// 			},
	// 			error => this.onCallbackError(error)
	// 		);
	// }

	public isFormValid(value: any) {
		return value.valid;
	}

	private onCallbackSuccess() {
		this.uiNotificationService.snackBarNotification(this.language.instant('ANNOTATION-DIALOG.SUCCESS'), SnackBarNotificationLevel.Success);
		this.refreshAnnotations();
		this.changesMade = true;
	}

	private onCallbackError(error: any) {
		this.uiNotificationService.snackBarNotification(this.language.instant(error.message), SnackBarNotificationLevel.Error);
	}


	getAnnotationProtectionType(thread: Guid): string {
		return this.enumUtils.toAnnotationProtectionTypeString(this.parentAnnotationsPerThread[thread.toString()].protectionType);
	}
	
	cancel() {
		this.dialogRef.close(this.changesMade);
	}

	close() {
		this.dialogRef.close(this.changesMade);
	}

	startWizard() {
		this.router.navigate(['/plans/new']);
		this.close();
	}

	showReplies(threadId: string): void {
		this.showRepliesPerThread[threadId] = true;
	}
	
	enableReply(threadId: string): void {
		this.replyEnabledPerThread[threadId] = true;
	}
}