import { Component, ElementRef, EventEmitter, OnInit, Output, ViewChild } from '@angular/core';
import { DashrunnerService } from '../dashrunner.service';
import { ActivatedRoute, Router } from '@angular/router';
import { Dashboard3Service } from 'src/app/services/builder/dashboard3.service';
import { DashboardContentModel } from 'src/app/models/builder/dashboard';
// Add FilterService import
import { FilterService } from '../../../dashboardnew/common-filter/filter.service';
// Add Subscription import
import { Subscription } from 'rxjs';

@Component({
  selector: 'app-bar-runner',
  templateUrl: './bar-runner.component.html',
  styleUrls: ['./bar-runner.component.scss']
})
export class BarRunnerComponent implements OnInit {
    @ViewChild('contentContainer') contentContainerRef!: ElementRef;
  @Output() buttonClicked = new EventEmitter<void>();
  editId;
  public DashtestboardArray: DashboardContentModel[] = [
  ];
  workflowLine;
  TableName;
  XAxis;
  YAxis;
  showlabel;
  lineChartNoLabels:any[] = [];
  JsonData;

  barData;
  ConnectionId: number; // Add ConnectionId property
  
  // Add subscriptions to unsubscribe on destroy
  private subscriptions: Subscription[] = [];

  constructor(
    private Dashtestservive:DashrunnerService,
    private route: ActivatedRoute,
    private dashboardService: Dashboard3Service,
    private router : Router,
    // Add FilterService to constructor
    private filterService: FilterService
  ) { }

  barChartLabels: any[] = [];
  barChartType: string = 'bar';
 barChartLegend = false;
  barChartPlugins = [];
  barChartData: any[] = [];

  CharData = {
    "barChartData": [
      { data: [45, 37, 60, 70, 46, 33], label: 'Best Fruits' },
    ],
    "barChartLabels":['Apple', 'Banana', 'Kiwifruit', 'Blueberry', 'Orange', 'Grapes']
  }

  ngOnInit(): void {
    this.barChartData = this.CharData.barChartData;
      this.barChartLabels = this.CharData.barChartLabels;

      this.editId = this.route.snapshot.params.id;
      console.log(this.editId);

      // Subscribe to filter changes
      this.subscriptions.push(
        this.filterService.filterState$.subscribe(filters => {
          // When filters change, refresh the chart data
          this.fetchChartData();
        })
      );

      this.dashboardService.getById(this.editId).subscribe((data)=>{
        console.log(data);
        this.workflowLine = data.dashbord1_Line[0].model;
        const dash = JSON.parse(this.workflowLine) ;
        // this.DashtestboardArray = dash.dashboard;
        // console.log(this.DashtestboardArray);

        const ChartObject = dash.dashboard.filter(obj => obj.name === "Bar Chart");
        console.log(ChartObject);
        for (let i = 0; i < ChartObject.length; i++) {
          const ids = this.Dashtestservive.getbarchart();
          // console.log(ids);
          if (ids.includes(ChartObject[i].chartid)) {
            // If the chartid is already in the ids array, continue to the next iteration
            continue;
          }
          this.Dashtestservive.setbarchart(ChartObject[i].chartid);
          const id = ids[i];
          console.log(id);
        
          if (ChartObject[i].chartid === id) {
            this.TableName = ChartObject[i].table;
            this.XAxis = ChartObject[i].xAxis;
            this.YAxis = ChartObject[i].yAxis;
            this.showlabel = ChartObject[i].showlabel;
            this.barChartLegend = ChartObject[i].chartlegend;
            this.ConnectionId = ChartObject[i].connection; // Add connection ID
            console.log(this.TableName);
            // Fetch data with filters
            this.fetchChartData();
            break; // No need to continue the loop once the correct placeholder is found
          }
        }
      });
  }
   
  // Fetch chart data with filter support
  fetchChartData(): void {
    if (this.TableName && this.XAxis && this.YAxis) {
      // Convert YAxis to string if it's an array
      const yAxisString = Array.isArray(this.YAxis) ? this.YAxis.join(',') : this.YAxis;
      
      // Get filter parameters from common filters
      const commonFilters = this.filterService.getFilterValues();
      const filterDefinitions = this.filterService.getFilters();
      
      // Build filter object using field names as keys
      const filterObj = {};
      Object.keys(commonFilters).forEach(filterId => {
        const filterValue = commonFilters[filterId];
        
        // Find the filter definition to get the field name
        const filterDef = this.filterService.getFilters().find(f => f.id === filterId);
        
        if (filterDef && filterDef.field) {
          const fieldName = filterDef.field;
          if (filterValue !== undefined && filterValue !== null && filterValue !== '') {
            filterObj[fieldName] = filterValue;
          }
        }
      });
      
      // Convert to JSON string for API call
      let filterParams = '';
      if (Object.keys(filterObj).length > 0) {
        filterParams = JSON.stringify(filterObj);
      }
      
      console.log('BarRunner: Final filter object to send to API:', filterObj);
      
      // Fetch data from the dashboard service with filters
      this.Dashtestservive.getChartDataWithFilters(this.TableName, "Bar Chart", this.XAxis, this.YAxis, this.ConnectionId, '', '', filterParams).subscribe((Ldata) => {
        console.log(Ldata);
        this.JsonData = Ldata;
        this.barChartData = this.JsonData.barChartData;
        this.barChartLabels = this.JsonData.barChartLabels;
      },(error) => {
        console.log(error);
      });
    }
  }

  generatePDFFile(){
    this.buttonClicked.emit();
    const content = this.contentContainerRef.nativeElement;
    const filename = 'barchart.pdf'; // You can provide any desired filename here

    this.Dashtestservive.generatePDF(content, filename);
  }
  
  ngOnDestroy() {
    // Unsubscribe from all subscriptions to prevent memory leaks
    console.log('BarRunnerComponent ngOnDestroy called, unsubscribing from', this.subscriptions.length, 'subscriptions');
    this.subscriptions.forEach(subscription => {
      if (subscription && !subscription.closed) {
        subscription.unsubscribe();
      }
    });
    this.subscriptions = [];
    
    console.log('BarRunnerComponent destroyed and cleaned up');
  }
}