import { TranslateService } from '@ngx-translate/core';
import { Component, OnInit } from '@angular/core';
import { FormControl, FormGroup, FormBuilder, Validators } from '@angular/forms';
import { BaseCriteriaComponent } from '../base/base-criteria.component';
import { ValidationContext, Validation } from '../../../../utilities/validators/ValidationContext';
import { BackendErrorValidator } from '../../../../utilities/validators/BackendErrorValidator';
import { ProjectCriteria } from '../../../../models/criteria/project/ProjectCriteria';
import { ProjectCriteriaErrorModel } from '../../../../models/criteria/project/ProjectCriteriaErrorModel';

@Component({
	selector: 'app-projects-criteria-component',
	templateUrl: './projects-criteria.component.html',
	styleUrls: ['./projects-criteria.component.scss'],
	providers: [
	]
})

export class ProjectCriteriaComponent extends BaseCriteriaComponent implements OnInit {

	// public form: ProjectType;
	// public formStatus: ProjectStatus;
	public criteria: ProjectCriteria = new ProjectCriteria();

	constructor(
		public language: TranslateService,
		public errorModel: ProjectCriteriaErrorModel,
		public formBuilder: FormBuilder
	) {
		super(errorModel);
	}

	ngOnInit() {
		super.ngOnInit();
		if (this.criteria == null) { this.criteria = new ProjectCriteria(); }
		if (this.formGroup == null) { this.formGroup = this.buildForm(); }
	}

	setCriteria(criteria: ProjectCriteria): void {
		this.criteria = criteria;
		this.formGroup = this.buildForm();
	}

	public fromJSONObject(item: any): ProjectCriteria {
		this.criteria = new ProjectCriteria();
		this.criteria.PeriodStart = new Date(item.PeriodStart);
		this.criteria.PeriodEnd = new Date(item.PeriodEnd);
		return this.criteria;
	}

	buildForm(): FormGroup {
		const context: ValidationContext = this.createValidationContext();

		return this.formBuilder.group({
			periodStart: [this.criteria.PeriodStart, context.getValidation('periodStart').validators],
			periodEnd: [this.criteria.PeriodEnd, context.getValidation('periodEnd').validators],
		});
	}

	createValidationContext(): ValidationContext {
		const validationContext: ValidationContext = new ValidationContext();
		const validationArray: Validation[] = new Array<Validation>();

		validationArray.push({ key: 'periodStart', validators: [BackendErrorValidator(this.errorModel, 'Criteria.PeriodStart')] }); //must add 'Criteria.' because the criteria validator is inside the request validator
		validationArray.push({ key: 'periodEnd', validators: [BackendErrorValidator(this.errorModel, 'Criteria.PeriodEnd')] });

		validationContext.validation = validationArray;
		return validationContext;
	}
}