import { AfterViewInit, Component } from '@angular/core';
import { AbstractControl, FormArray, FormControl, FormGroup } from '@angular/forms';
import { MatSnackBar } from '@angular/material';
import { ActivatedRoute, Params, Router } from '@angular/router';
import { TranslateService } from '@ngx-translate/core';
import { takeUntil } from 'rxjs/operators';
import { environment } from '../../../../../environments/environment';
import { ValidationErrorModel } from '../../../../common/forms/validation/error-model/validation-error-model';
import { BaseComponent } from '../../../../core/common/base/base.component';
import { DmpProfileFieldDataType } from '../../../../core/common/enum/dmp-profile-field-type';
import { DmpProfileType } from '../../../../core/common/enum/dmp-profile-type';
import { DmpProfile } from '../../../../core/model/dmp-profile/dmp-profile';
import { DmpProfileService } from '../../../../core/services/dmp/dmp-profile.service';
import { EnumUtils } from '../../../../core/services/utilities/enum-utils.service';
import { SnackBarNotificationComponent } from '../../../../library/notification/snack-bar/snack-bar-notification.component';
import { DmpProfileEditorModel, DmpProfileFieldEditorModel } from './dmp-profile-editor.model';

@Component({
	selector: 'app-dmp-profile-editor-component',
	templateUrl: 'dmp-profile-editor.component.html',
	styleUrls: ['./dmp-profile-editor.component.scss']
})
export class DmpProfileEditorComponent extends BaseComponent implements AfterViewInit {

	isNew = true;
	dmpProfileModel: DmpProfileEditorModel;
	formGroup: FormGroup = null;
	host = environment.Server;

	constructor(
		private dmpProfileService: DmpProfileService,
		private route: ActivatedRoute,
		private snackBar: MatSnackBar,
		private router: Router,
		private language: TranslateService,
		private enumUtils: EnumUtils
	) {
		super();
	}

	ngAfterViewInit() {
		this.route.params
			.pipe(takeUntil(this._destroyed))
			.subscribe((params: Params) => {
				const itemId = params['id'];

				if (itemId != null) {
					this.isNew = false;
					this.dmpProfileService.getSingle(itemId).map(data => data as DmpProfile)
						.pipe(takeUntil(this._destroyed))
						.subscribe(data => {
							this.dmpProfileModel = new DmpProfileEditorModel().fromModel(data);
							this.formGroup = this.dmpProfileModel.buildForm();
						});
				} else {
					this.dmpProfileModel = new DmpProfileEditorModel();
					setTimeout(() => {
						this.formGroup = this.dmpProfileModel.buildForm();
					});
				}
			});
	}

	formSubmit(): void {
		this.touchAllFormFields(this.formGroup);
		if (!this.isFormValid()) { return; }
		this.onSubmit();
	}

	public isFormValid() {
		return this.formGroup.valid;
	}

	onSubmit(): void {
		this.dmpProfileService.createDmp(this.formGroup.value)
			.pipe(takeUntil(this._destroyed))
			.subscribe(
				complete => this.onCallbackSuccess(),
				error => this.onCallbackError(error)
			);
	}

	onCallbackSuccess(): void {
		this.snackBar.openFromComponent(SnackBarNotificationComponent, {
			data: { message: this.isNew ? 'GENERAL.SNACK-BAR.SUCCESSFUL-CREATION' : 'GENERAL.SNACK-BAR.SUCCESSFUL-UPDATE', language: this.language },
			duration: 3000,
		});
		this.router.navigate(['/dmp-profiles']);
	}

	onCallbackError(errorResponse: any) {
		this.setErrorModel(errorResponse.error);
		this.validateAllFormFields(this.formGroup);
	}

	public setErrorModel(validationErrorModel: ValidationErrorModel) {
		Object.keys(validationErrorModel).forEach(item => {
			(<any>this.dmpProfileModel.validationErrorModel)[item] = (<any>validationErrorModel)[item];
		});
	}

	public cancel(): void {
		this.router.navigate(['/dmp-profiles']);
	}


	public touchAllFormFields(formControl: AbstractControl) {
		if (formControl instanceof FormControl) {
			formControl.markAsTouched();
		} else if (formControl instanceof FormGroup) {
			Object.keys(formControl.controls).forEach(item => {
				const control = formControl.get(item);
				this.touchAllFormFields(control);
			});
		} else if (formControl instanceof FormArray) {
			formControl.controls.forEach(item => {
				this.touchAllFormFields(item);
			});
		}
	}

	public validateAllFormFields(formControl: AbstractControl) {
		if (formControl instanceof FormControl) {
			formControl.updateValueAndValidity({ emitEvent: false });
		} else if (formControl instanceof FormGroup) {
			Object.keys(formControl.controls).forEach(item => {
				const control = formControl.get(item);
				this.validateAllFormFields(control);
			});
		} else if (formControl instanceof FormArray) {
			formControl.controls.forEach(item => {
				this.validateAllFormFields(item);
			});
		}
	}

	addField() {
		(<FormArray>this.formGroup.get('definition').get('fields')).push(new DmpProfileFieldEditorModel().buildForm());
	}

	removeField(index: number) {
		(<FormArray>this.formGroup.get('definition').get('fields')).controls.splice(index, 1);
	}

	getDMPProfileFieldDataTypeValues(): Number[] {
		let keys: string[] = Object.keys(DmpProfileFieldDataType);
		keys = keys.slice(0, keys.length / 2);
		const values: Number[] = keys.map(Number);
		return values;
	}

	getDMPProfileFieldDataTypeWithLanguage(fieldType: DmpProfileFieldDataType): string {
		let result = '';
		this.language.get(this.enumUtils.toDmpProfileFieldDataTypeString(fieldType))
			.pipe(takeUntil(this._destroyed))
			.subscribe((value: string) => {
				result = value;
			});
		return result;
	}

	getDMPProfileFieldTypeValues(): Number[] {
		let keys: string[] = Object.keys(DmpProfileType);
		keys = keys.slice(0, keys.length / 2);
		const values: Number[] = keys.map(Number);
		return values;
	}

	getDMPProfileFieldTypeWithLanguage(profileType: DmpProfileType): string {
		let result = '';
		this.language.get(this.enumUtils.toDmpProfileTypeString(profileType))
			.pipe(takeUntil(this._destroyed))
			.subscribe((value: string) => {
				result = value;
			});
		return result;
	}

	delete() {
		//TODO
	}
}