import { BaseErrorModel } from '../../models/error/BaseErrorModel';
import { SnackBarNotificationComponent } from '../../shared/components/notificaiton/snack-bar-notification.component';
import { DatasetProfileCriteria } from '../../models/criteria/dataset-profile/DatasetProfileCriteria';
import { DataManagementPlanModel } from '../../models/data-managemnt-plans/DataManagementPlanModel';
import { JsonSerializer } from '../../utilities/JsonSerializer';
import { DataManagementPlanCriteria } from '../../models/criteria/data-management-plan/DataManagementPlanCriteria';
import { RequestItem } from '../../models/criteria/RequestItem';
import { DatasetService } from '../../services/dataset/dataset.service';
import { ExternalSourcesItemModel } from '../../models/external-sources/ExternalSourcesItemModel';
import { DatasetProfileModel } from '../../models/datasetprofile/DatasetProfileModel';
import { DatasetProfileDefinitionModel } from '../../models/DatasetProfileDefinitionModel';
import { DatasetWizardModel } from '../../models/datasets/DatasetWizardModel';
import { DataManagementPlanService } from '../../services/data-management-plan/data-management-plan.service';
import { ExternalSourcesService } from '../../services/external-sources/external-sources.service';
import { DatasetWizardService } from '../../services/dataset-wizard/dataset-wizard.service';
import { TranslateService } from '@ngx-translate/core';
import { ActivatedRoute, Router, Params } from '@angular/router';
import { Component, ViewChild, OnInit, AfterViewInit, ViewEncapsulation, TemplateRef, ChangeDetectionStrategy } from "@angular/core";
import { FormGroup, Validators, FormBuilder, FormArray } from "@angular/forms";
import * as FileSaver from 'file-saver';
import { MatPaginator, MatSort, MatSnackBar, MatStepper, MatDialog } from "@angular/material";
import { ExternalDatasetCriteria } from '../../models/criteria/external-dataset/ExternalDatasetCriteria';
import { ExternalDatasetModel } from '../../models/external-dataset/ExternalDatasetModel';
import { RegistryCriteria } from '../../models/criteria/registry/RegistryCriteria';
import { RegisterModel } from '../../models/registers/RegisterModel';
import { DataRepositoryCriteria } from '../../models/criteria/data-repository/DataRepositoryCriteria';
import { ServicesCriteria } from '../../models/criteria/services/ServicesCriteria';
import { ServiceModel } from '../../models/services/ServiceModel';
import { DataRepositoryModel } from '../../models/dataRepositories/DataRepositoryModel';
import { ExternalSourcesConfigurationService } from '../../services/external-sources/external-sources-configuration.service';
import { ExternalSourcesConfiguration } from '../../models/external-sources/ExternalSourcesConfiguration';
import { IBreadCrumbComponent } from '../../shared/components/breadcrumb/definition/IBreadCrumbComponent';
import { Observable } from 'rxjs/Observable';
import { BreadcrumbItem } from '../../shared/components/breadcrumb/definition/breadcrumb-item';
import { TagsCriteria } from '../../models/criteria/tags/TagsCriteria';
import { TagModel } from '../../models/tags/TagModel';
import { AutoCompleteConfiguration } from '../../shared/components/auto-complete/AutoCompleteConfiguration';
import { SingleAutoCompleteConfiguration } from '../../shared/components/autocompletes/single/single-auto-complete-configuration';
import { DataManagementPlanListingModel } from '../../models/data-managemnt-plans/DataManagementPlanListingModel';
import { DataRepositoryReferencedModelHelperComponent } from '../dataset-referenced-models-helper/datarepository/datarepository-referenced-model-helper.component';
import { RegistryReferencedModelHelperComponent } from '../dataset-referenced-models-helper/registry/registry-referenced-model-helper.component';
import { ExternalDatasetReferencedModelHelperComponent } from '../dataset-referenced-models-helper/externalDataset/externaldataset-referenced-model-helper.component';
import { ServicesReferencedModelHelperComponent } from '../dataset-referenced-models-helper/services/services-referenced-model-helper.component';

@Component({
  selector: 'app-dataset-wizard-component',
  templateUrl: 'dataset-wizard.component.html',
  styleUrls: ['./dataset-wizard.component.scss'],
  encapsulation: ViewEncapsulation.None,
})
export class DatasetWizardComponent implements OnInit, IBreadCrumbComponent {
  breadCrumbs: Observable<BreadcrumbItem[]>;
  viewOnly = false;
  @ViewChild('stepper') stepper: MatStepper;
  //autocomplete Display Functions;
  externalDatasetDisplayFunc = (item) => item ? item.label : null;
  registriesDisplayFunc = (item) => item ? item.label : null;
  dataRepositoryDisplayFunc = (item) => item ? item.name : null;
  servicesDisplayFunc = (item) => item ? item.label : null;
  tagsDisplayFunc = (item) => item ? item.name : null;


  //autocomplete Display Functions;
  externalDatasetDisplaySubtitleFunc = (item) => item ? item.tag : null;
  registriesDisplaySubtitleFunc = (item) => item ? item.tag : null;
  dataRepositoryDisplaySubtitleFunc = (item) => item ? item.tag : null;
  servicesDisplaySubtitleFunc = (item) => item ? item.tag : null;
  tagsDisplaySubtitleFunc = (item) => item ? item.tag : null;

  //autocomplete Configurations;
  externalDatasetAutoCompleteConfiguration: AutoCompleteConfiguration;
  registriesAutoCompleteConfiguration: AutoCompleteConfiguration;
  dataRepositoriesAutoCompleteConfiguration: AutoCompleteConfiguration;
  servicesAutoCompleteConfiguration: AutoCompleteConfiguration;
  tagsAutoCompleteConfiguration: AutoCompleteConfiguration;
  dmpAutoCompleteConfiguration: SingleAutoCompleteConfiguration;

  externalSourcesConfiguration: ExternalSourcesConfiguration;

  datasetWizardModel: DatasetWizardModel;
  isNew = true;
  formGroup: FormGroup;
  datasetProfileDefinitionModel: DatasetProfileDefinitionModel;

  availableProfiles: DatasetProfileModel[] = [];
  itemId: string
  constructor(
    private datasetWizardService: DatasetWizardService,
    private formBuilder: FormBuilder,
    private datasetService: DatasetService,
    private route: ActivatedRoute,
    public snackBar: MatSnackBar,
    public router: Router,
    public language: TranslateService,
    public externalSourcesService: ExternalSourcesService,
    public dataManagementPlanService: DataManagementPlanService,
    public dialog: MatDialog,
    public externalSourcesConfigurationService: ExternalSourcesConfigurationService
  ) {

  }

  isLinear = false;
  firstStepFormGroup: FormGroup;
  secondFormGroup: FormGroup;

  ngOnInit() {


    this.route
      .data
      .subscribe(v => this.viewOnly = v["public"]);

    let dmpRequestItem: RequestItem<DataManagementPlanCriteria> = new RequestItem();
    dmpRequestItem.criteria = new DataManagementPlanCriteria();

    let externalDatasetRequestItem: RequestItem<ExternalDatasetCriteria> = new RequestItem();
    externalDatasetRequestItem.criteria = new ExternalDatasetCriteria();
    this.externalDatasetAutoCompleteConfiguration = new AutoCompleteConfiguration(this.externalSourcesService.searchDatasetSExternalDatasetservice.bind(this.externalSourcesService), externalDatasetRequestItem)

    let registriesRequestItem: RequestItem<RegistryCriteria> = new RequestItem();
    registriesRequestItem.criteria = new RegistryCriteria();
    this.registriesAutoCompleteConfiguration = new AutoCompleteConfiguration(this.externalSourcesService.searchDatasetRegistry.bind(this.externalSourcesService), registriesRequestItem)

    let dataRepositoriesRequestItem: RequestItem<DataRepositoryCriteria> = new RequestItem();
    dataRepositoriesRequestItem.criteria = new DataRepositoryCriteria();
    this.dataRepositoriesAutoCompleteConfiguration = new AutoCompleteConfiguration(this.externalSourcesService.searchDatasetRepository.bind(this.externalSourcesService), dataRepositoriesRequestItem)

    let servicesRequestItem: RequestItem<ServicesCriteria> = new RequestItem();
    servicesRequestItem.criteria = new ServicesCriteria();
    this.servicesAutoCompleteConfiguration = new AutoCompleteConfiguration(this.externalSourcesService.searchDatasetService.bind(this.externalSourcesService), servicesRequestItem)

    let tagsRequestItem: RequestItem<TagsCriteria> = new RequestItem();
    tagsRequestItem.criteria = new TagsCriteria();
    this.tagsAutoCompleteConfiguration = new AutoCompleteConfiguration(this.externalSourcesService.searchDatasetTags.bind(this.externalSourcesService), tagsRequestItem)

    this.externalSourcesConfigurationService.getExternalSourcesConfiguration().subscribe(result => {
      this.externalSourcesConfiguration = result;
      this.externalSourcesConfiguration.dataRepositories.push({ key: '', label: "All" })
      this.externalSourcesConfiguration.externalDatasets.push({ key: '', label: "All" })
      this.externalSourcesConfiguration.registries.push({ key: '', label: "All" })
      this.externalSourcesConfiguration.services.push({ key: '', label: "All" })
      this.externalSourcesConfiguration.tags.push({ key: '', label: "All" })
    })

    this.dmpAutoCompleteConfiguration = {
      filterFn: this.searchDmp.bind(this),
      items: this.searchDmp(''),
      displayFn: (item) => item["label"],
      titleFn: (item) => item["label"],
      //mapFn: (item) => new JsonSerializer<ProjectReference>().fromJSONArray(item, ProjectReference).map(item => item.toDropdownList()),
      loadDataOnStart: true
    };

    this.route.params.subscribe((params: Params) => {
      this.itemId = params['id'];
      const dmpId = params['dmpId'];
      if (this.itemId != null) {
        this.isNew = false;
        this.datasetWizardService.getSingle(this.itemId).map(data => data as DatasetWizardModel)
          .subscribe(data => {
            this.datasetWizardModel = JsonSerializer.fromJSONObject(data, DatasetWizardModel);
            this.breadCrumbs = Observable.of([
              {
                parentComponentName: null,
                label: "Datasets",
                url: "/datasets",
                notFoundResolver: [
                  {
                    parentComponentName: null,
                    label: this.datasetWizardModel.dmp.project.label,
                    url: "/projects/edit/" + this.datasetWizardModel.dmp.project.id
                  },
                  {
                    parentComponentName: null,
                    label: this.datasetWizardModel.dmp.label,
                    url: "/dmps/edit/" + this.datasetWizardModel.dmp.id,
                  },
                ]
              }])
            this.formGroup = this.datasetWizardModel.buildForm();
            if (this.datasetWizardModel.status == 1) {
              this.formGroup.disable()
              this.viewOnly = true;
            }
            if (this.viewOnly) this.formGroup.disable();
            this.loadDatasetProfiles();
          });
      } else if (dmpId != null) {
        this.isNew = true;
        this.dataManagementPlanService.getSingle(dmpId).map(data => data as DataManagementPlanModel)
          .subscribe(data => {
            this.datasetWizardModel = new DatasetWizardModel();
            setTimeout(() => {
              this.datasetWizardModel.dmp = data;
              this.formGroup = this.datasetWizardModel.buildForm();
              if (this.datasetWizardModel.status == 1) {
                this.formGroup.disable()
                this.viewOnly = true;
              }
              this.loadDatasetProfiles();

              this.breadCrumbs = Observable.of([
                {
                  parentComponentName: null,
                  label: "Datasets",
                  url: "/datasets",
                  notFoundResolver: [
                    {
                      parentComponentName: null,
                      label: this.datasetWizardModel.dmp.project.label,
                      url: "/projects/edit/" + this.datasetWizardModel.dmp.project.id
                    },
                    {
                      parentComponentName: null,
                      label: this.datasetWizardModel.dmp.label,
                      url: "/dmps/edit/" + this.datasetWizardModel.dmp.id,
                    }]
                }])
            });
          });
      } else {
        this.datasetWizardModel = new DatasetWizardModel();
        this.formGroup = this.datasetWizardModel.buildForm()
        if (this.datasetWizardModel.status == 1) {
          this.formGroup.disable()
          this.viewOnly = true;
        }

        if (this.viewOnly) this.formGroup.disable();

        this.formGroup.get('dmp').valueChanges.subscribe(x => {
          this.loadDatasetProfiles();
        })
      }
    });
  }

  ngAfterViewInit() {
    this.route.params.subscribe((params: Params) => {
      let itemId = params['id'];
      if (itemId != null) this.stepper.selectedIndex = 2;
    })
  }

  searchDmp(query: string): Observable<DataManagementPlanListingModel[]> {
    let dmpRequestItem: RequestItem<DataManagementPlanCriteria> = new RequestItem();
    dmpRequestItem.criteria = new DataManagementPlanCriteria();
    dmpRequestItem.criteria.like = query;
    return this.dataManagementPlanService.get(dmpRequestItem);
  }

  loadDatasetProfiles() {
    let datasetProfileRequestItem: RequestItem<DatasetProfileCriteria> = new RequestItem();
    datasetProfileRequestItem.criteria = new DatasetProfileCriteria();
    datasetProfileRequestItem.criteria.id = this.formGroup.get("dmp").value.id;
    if (datasetProfileRequestItem.criteria.id) this.datasetWizardService.getAvailableProfiles(datasetProfileRequestItem).subscribe(items => {
      this.availableProfiles = JsonSerializer.fromJSONArray(items, DatasetProfileModel);
    });
  }

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

  getDefinition() {
    if (this.isNew) {
      this.datasetWizardService.getDefinition(this.formGroup.get("profile").get("id").value).subscribe(item => {
        this.datasetWizardModel.datasetProfileDefinition = JsonSerializer.fromJSONObject(item, DatasetProfileDefinitionModel);
        this.datasetProfileDefinitionModel = this.datasetWizardModel.datasetProfileDefinition;
        this.formGroup.addControl("datasetProfileDefinition", this.datasetProfileDefinitionModel.buildForm())
      })
    }
  }


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

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

  onSubmit(): void {
    this.datasetWizardService.createDataset(this.formGroup.value).subscribe(
      complete => {
        this.datasetWizardService.getSingle(complete.id).subscribe(
          result => {
            this.datasetWizardModel = JsonSerializer.fromJSONObject(result, DatasetWizardModel);
          }
        )
        this.onCallbackSuccess()
      },
      error => this.onCallbackError(error)
    );
  }

  submit() {
    this.datasetWizardService.createDataset(this.formGroup.value).subscribe(data => {
      this.router.navigateByUrl("/datasets/dmp/" + this.formGroup.get("dmp").value.id);
    });
  }


  save() {
    if (!this.isFormValid()) { return; }
    this.formGroup.get("status").setValue("0");
    this.submit();
  }

  saveFinalize() {
    if (!this.isFormValid()) { return; }
    this.formGroup.get("status").setValue("1");
    this.submit();
  }

  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,
    })
  }

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

  public setErrorModel(errorModel: BaseErrorModel) {
    Object.keys(errorModel).forEach(item => {
      (<any>this.datasetWizardModel.errorModel)[item] = (<any>errorModel)[item];
    })
  }

  downloadPDF(): void {
    this.datasetWizardService.downloadPDF(this.itemId).subscribe(response => {
      const blob = new Blob([response.body], { type: 'application/pdf' })
      const filename = this.getFilenameFromContentDispositionHeader(response.headers.get('Content-Disposition'));

      FileSaver.saveAs(blob, filename)
    })
  }

  downloadXML(): void {
    this.datasetWizardService.downloadXML(this.itemId).subscribe(response => {
      const blob = new Blob([response.body], { type: 'application/xml' })
      const filename = this.getFilenameFromContentDispositionHeader(response.headers.get('Content-Disposition'));

      FileSaver.saveAs(blob, filename)
    })
  }

  getFilenameFromContentDispositionHeader(header: string): string {
    const regex: RegExp = new RegExp(/filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/g);

    const matches = header.match(regex);
    let filename: string;
    for (let i = 0; i < matches.length; i++) {
      const match = matches[i];
      if (match.includes('filename="')) {
        filename = match.substring(10, match.length - 1);
        break;
      } else if (match.includes('filename=')) {
        filename = match.substring(9);
        break;
      }
    }
    return filename;
  }

  public redirectToProject() {
    this.router.navigate(["projects/edit/" + this.datasetWizardModel.dmp.project.id])
  }

  public redirectToDmp() {
    this.router.navigate(["dmps/edit/" + this.datasetWizardModel.dmp.id])
  }

  externalDatasetsOnItemChange(event) {
    let externalDatasetModel = new ExternalDatasetModel(event.id, event.abbreviation, event.label, event.reference);
    (<FormArray>this.formGroup.get("externalDatasets")).push(externalDatasetModel.buildForm());
  }

  registriesOnItemChange(event) {
    let registryModel = new RegisterModel(event.abbreviation, event.definition, event.id, event.label, event.reference, event.uri);
    (<FormArray>this.formGroup.get("registries")).push(registryModel.buildForm());
  }

  servicesOnItemChange(event) {
    let serviceModel = new ServiceModel(event.abbreviation, event.definition, event.id, event.label, event.reference, event.uri);
    (<FormArray>this.formGroup.get("services")).push(serviceModel.buildForm());
  }

  tagsOnItemChange(event) {
    let serviceModel = new TagModel(event.id, event.name);
    (<FormArray>this.formGroup.get("tags")).push(serviceModel.buildForm());
  }


  dataRepositoriesOnItemChange(event) {
    let dataRepositoryModel = new DataRepositoryModel(event.id, event.name, event.abbreviation, event.uri, event.pid);
    (<FormArray>this.formGroup.get("dataRepositories")).push(dataRepositoryModel.buildForm());
  }

  addDataRepository() {
    let dialogRef = this.dialog.open(DataRepositoryReferencedModelHelperComponent, {
      height: '255px',
      width: '700px',
      data: {

      }
    });
    dialogRef.afterClosed().subscribe(result => {
      if (!result) return
      let dataRepositoryModel = new DataRepositoryModel(result.id, result.label, result.pid, result.uri, result.reference);
      (<FormArray>this.formGroup.get("dataRepositories")).push(dataRepositoryModel.buildForm());
    });
  }

  addRegistry() {
    let dialogRef = this.dialog.open(RegistryReferencedModelHelperComponent, {
      height: '255px',
      width: '700px',
      data: {

      }
    });
    dialogRef.afterClosed().subscribe(result => {
      if (!result) return
      let registryModel = new RegisterModel(result.abbreviation, result.definition, result.id, result.label, result.reference, result.uri);
      (<FormArray>this.formGroup.get("registries")).push(registryModel.buildForm());
    });
  }

  addExternalDataset() {
    let dialogRef = this.dialog.open(ExternalDatasetReferencedModelHelperComponent, {
      height: '255px',
      width: '700px',
      data: {

      }
    });
    dialogRef.afterClosed().subscribe(result => {
      if (!result) return
      let externalDatasetModel = new ExternalDatasetModel(result.id, result.abbreviation, result.label, result.reference);
      (<FormArray>this.formGroup.get("externalDatasets")).push(externalDatasetModel.buildForm());
    });
  }

  addService() {
    let dialogRef = this.dialog.open(ServicesReferencedModelHelperComponent, {
      height: '255px',
      width: '700px',
      data: {

      }
    });
    dialogRef.afterClosed().subscribe(result => {
      if (!result) return
      let serviceModel = new ServiceModel(result.id, result.abbreviation, result.definition, result.uri, result.label, result.reference);
      (<FormArray>this.formGroup.get("services")).push(serviceModel.buildForm());
    });
  }
}