import { DatePipe, NgIf, DecimalPipe, JsonPipe } from '@angular/common';
import { HttpClient } from '@angular/common/http';
import { Component, OnInit, ViewChild } from '@angular/core';
import { UntypedFormGroup, UntypedFormBuilder, FormsModule, ReactiveFormsModule } from '@angular/forms';
import { MatSort, MatSortModule } from '@angular/material/sort';
import { MatTableDataSource, MatTableModule } from '@angular/material/table';
import { ActivatedRoute, RouterLink } from '@angular/router';
import { Layer, LayerType } from 'src/app/models/layer.model';
import { Record } from 'src/app/models/record.model';
import { NotificationsService } from 'src/app/services/notifications.service';
import { environment } from 'src/environments/environment';
import { MatInputModule } from '@angular/material/input';
import { MatFormFieldModule } from '@angular/material/form-field';
import { MatGridListModule } from '@angular/material/grid-list';
import { MatButtonModule } from '@angular/material/button';
import { MatCardModule } from '@angular/material/card';

@Component({
    selector: 'diunabi-layer-detail',
    templateUrl: './layer-detail.component.html',
    styleUrls: ['./layer-detail.component.scss'],
    standalone: true,
    imports: [FormsModule, ReactiveFormsModule, MatCardModule, 
      MatButtonModule, MatGridListModule, MatFormFieldModule, MatInputModule, 
      NgIf, MatTableModule, MatSortModule, DecimalPipe, JsonPipe, RouterLink],
    providers: [DatePipe]
})
export class LayerDetailComponent implements OnInit {

  public form!: UntypedFormGroup;
  public document!: Layer;

  valueSum = 0;

  displayedColumns = environment.views.layers.recordColumns.split("|");
  dataSource!: MatTableDataSource<Record>;

  LayerType = LayerType;

  @ViewChild(MatSort) sort!: MatSort;

  constructor(
    private fb$: UntypedFormBuilder,
    private http$: HttpClient,
    private route$: ActivatedRoute,
    private datePipe: DatePipe,
    private notifications$: NotificationsService
  ) { 
    this.form = Layer.getForm(this.fb$);
  }

  async ngOnInit() {
    this.document = await this.load();
    this.dataSource = new MatTableDataSource<Record>(this.document.records);
    this.dataSource.sort = this.sort;
    this.document.fillForm(this.form);
    this.form.disable();
    this.document.created = `${this.datePipe.transform(this.document.createdAt?.toDate(), 'short')}, ${this.document.createdBy?.userName}`;
    this.document.modified = `${this.datePipe.transform(this.document.modifiedAt?.toDate(), 'short')}, ${this.document.modifiedBy?.userName}`;
    this.valueSum =  this.document.records.map(t => t.value1 || 0).reduce((acc, value) => acc + value, 0);
    this.createColumns();
  }
  private async load(): Promise<Layer> {
      return await Layer.getById(this.route$.snapshot.paramMap.get('id') || "", this.http$);
  }

  createColumns() {
    this.displayedColumns = ['code'];
    for (let i = 1; i < 33; i++) {
      for (const record of this.document.records) {
        const propertyName = `value${i}` as keyof typeof record;
        if (record[propertyName] !== null) {
          this.displayedColumns.push(`value${i}`);
          break;
        }
      }
    }
    for (let i = 1; i < 6; i++) {
      for (const record of this.document.records) {
        const propertyName = `desc${i}` as keyof typeof record;
        if (record[propertyName] !== null) {
          this.displayedColumns.push(`desc${i}`);
          break;
        }
      }
    }
  }

  async export() {
    if (await Layer.exportToGoogleSheet(this.document.id || "", this.http$)) {
      this.notifications$.add({
        text: "The file was saved on Google Drive",
      });
    } else {
      this.notifications$.add({
        text: "Save failed!",
      });
    }
  }
}