import {Component, OnInit, ViewChild} from '@angular/core';
import { CacheService } from '../cache.service';
import zingchart from 'zingchart/es6';

@Component({
  selector: 'app-overview-window',
  templateUrl: './overview-window.component.html',
  styleUrls: ['./overview-window.component.css']
})
export class OverviewWindowComponent implements OnInit {
  public config;
  public graphset = [];
  public id = "overview";
  public markers = [];
  public series = [];
  public goodLabels = [];
  public badLabels = [];
  @ViewChild('chart') chart;

  public data;
  public layout;

  constructor(private service: CacheService) {
  }

  async ngOnInit(): Promise<void> {
    this.service.onNewData.subscribe(() => this.initializePlot());
    this.service.onNewTables.subscribe(() => {
      if (this.service.queryWindow) {
        this.updatePlot();
      }
    });
    this.service.onNewSlider.subscribe((v) => this.updateCandidates(v));
  }

  async initializePlot() {
    // Initialize label chart
    this.graphset.push({
      id: 'preview',
      type: "scatter",
      x: 0,
      y: 0,
      scaleX: {
        zooming: true,
        minValue: 0,
        maxValue: this.service.rawValues[0].length,
        zoomTo: [0, this.service.windowSize],
        'auto-fit': true,
        visible: false,
        guide: {
          visible: false
        }
      },
      height: '30px',
      scaleY: {
        maxValue: 1,
        minValue: -1,
        visible: false,
        guide: {
          visible: false
        }
      },
      preview: {
        x: 50,
        y: 10,
        height: '30px',
      },
      series: [
        {
          type: 'scatter',
          values: [],
          text: 'Good labels',
          marker: {
            backgroundColor: '#4caf50'
          },
          zIndex: 20,
        },
        {
          type: 'scatter',
          values: [],
          text: 'Bad labels',
          marker: {
            backgroundColor: '#f44336'
          },
          zIndex: 20,
        },
        {
          type: 'scatter',
          values: [],
          text: 'Candidates',
          marker: {
            backgroundColor: '#b1a343'
          },
          zIndex: 20,
        }
      ]
    });
    // Initialize channels
    this.service.rawValues.forEach((channel, index) => {
      const data = [];
      for (let i = 0; i < channel.length; i++) {
        data.push([i, channel[i]]);
      }
      this.graphset.push({
        id: index,
        x: 0,
        y: `${75 * index + 50}px`,
        type: 'line',
        height: '50px',
        scaleX: {
          zooming: true,
          zoomTo: [0, this.service.windowSize],
          markers: []
        },
        'scale-y': {
          zooming: false,
          'auto-fit': true
        },
        plotarea: {
          height: '50px',
          'margin-top': '0px',
          'margin-bot': '0px'
        },
        series: [{
          type: 'line',
          values: data,
          text: 'Raw Values',
          zIndex: 5,
          marker: {
            alpha: 0.0,
            zIndex: 10
          }
        }]
      });
    });
    zingchart.bind('zingchart-ng-1', 'zoom', (e) => {
      if (e.graphid !== `zingchart-ng-1-graph-preview`) {
        return;
      }
      for (let i = 1; i < this.graphset.length; i ++) {
        this.chart.zoomto({
          graphid: i,
          xmin: e.xmin,
          xmax: e.xmax
        });
      }
    });
    this.config = {
      layout: `${this.graphset.length}x1`,
      graphset: this.graphset
    };
    console.log(this.config);
    console.log("showing plot");
  }

  async clicked(clickData) {
    if (!this.service.querySelectionMode) {
      return;
    }
    this.service.querySelectionMode = false;
    const xyInformation = JSON.parse(this.chart.getxyinfo({
      x: clickData.x,
      y: clickData.y
    }));
    console.log(xyInformation);
    const index = Math.floor(xyInformation[8].nodeidx / this.service.stepSize);
    await this.service.getQueryWindow(this.service.rawValues[0].slice(index, index + this.service.windowSize));
    const temp = {};
    temp[index] = true;
    this.service.labels = temp;
    await this.updatePlot();
  }

  async updatePlot() {
    console.log('updating plot');
    if (!this.service.queryWindow) {
      return;
    }
    this.goodLabels = [];
    this.badLabels = [];
    this.markers = [];
    for (const index in this.service.labels) {
      if (this.service.labels[index]) {
        this.goodLabels.push([Number(index), 0]);
        this.markers.push({
          type: 'area',
          // BUG: For some reason the range values are multiplied by 10
          range: [Number(index) / 10, (Number(index) + this.service.windowSize) / 10],
          backgroundColor: "#4caf50",
        });
      } else {
        this.badLabels.push([Number(index), 0]);
        this.markers.push({
          type: 'area',
          // BUG: For some reason the range values are multiplied by 10
          range: [Number(index) / 10, (Number(index) + this.service.windowSize) / 10],
          backgroundColor: "#f44336",
        });
      }
    }
    for (const channel of this.config.graphset) {
      if (channel.type === 'line') {
        channel.scaleX.markers = this.markers;
      } else {
        channel.series[0].values = this.goodLabels;
        channel.series[1].values = this.badLabels;
      }
    }
    this.chart.setdata({
      data: this.config
    });
    await this.service.getSimilarWindows();
  }

  async updateCandidates(sliderIndex) {
    console.log("Updating chart");
    let candidates = [];
    for (let i = sliderIndex; i < this.service.nrOfTables; i++) {
      candidates = candidates.concat(this.service.windowSimilarity[sliderIndex.toString()]);
    }
    const labels = [];
    const markers = [];
    for (const index of candidates) {
      labels.push([Number(index), 0]);
      markers.push({
        type: 'area',
        // BUG: For some reason the range values are multiplied by 10
        range: [Number(index) / 10, (Number(index) + this.service.windowSize) / 10],
        backgroundColor: "#b1a343",
      });
    }
    for (const channel of this.config.graphset) {
      if (channel.type === 'line') {
        channel.scaleX.markers = this.markers;
      } else {
        channel.series[0].values = this.goodLabels;
        channel.series[1].values = this.badLabels;
      }
    }
    this.chart.setdata({
      data: this.config
    });
  }

  zoom(p) {
    if (!p.ev) {
      return;
    }
    if (p.ev.wheelDelta > 0) {
      for (let i = 0; i < this.graphset.length; i ++) {
        this.chart.zoomin({
          graphid: i
        });
      }
    } else if (p.ev.wheelDelta < 0) {
      for (let i = 0; i < this.graphset.length; i ++) {
        this.chart.zoomout({
          graphid: i
        });
      }    }
  }
}