FoodLoop-Web/src/app/dashboard/dashboard.component.ts

import { Directive, Component, OnInit } from '@angular/core';
import { Http, Response } from '@angular/http';
import { ApiService } from '../providers/api-service';
import { Router } from '@angular/router';
import { GraphWidget } from '../widgets/graph-widget.component';
import { DataType } from '../shared/data-types.enum';

@Component({
  templateUrl: 'dashboard.component.html'
})
export class DashboardComponent implements OnInit {

  // Snippet data
  public customersThisMonth: number;
  public moneySpentThisMonth: number;
  public pointsTotal: number;
  public averageTransactionToday: number;

  shuffledArray: any;

  public widgetList = [
    {
      type: 'graph',
      name: 'customers_last_7_days',
      icon: 'icon-people',
      title: 'Customers Last 7 Days',
    },
    {
      type: 'graph',
      name: 'customers_last_30_days',
      icon: 'icon-people',
      title: 'Customers Last 30 Days',
    },
    {
      type: 'graph',
      name: 'sales_last_7_days',
      icon: 'icon-diamond',
      title: 'Sales Last 7 Days',
      dataType: DataType.currency,
    },
    {
      type: 'graph',
      name: 'sales_last_30_days',
      icon: 'icon-diamond',
      title: 'Sales Last 30 Days',
      dataType: DataType.currency,
    },
    {
      type: 'graph',
      name: 'purchases_last_7_days',
      title: 'Purchases Last 7 Days',
      dataType: DataType.currency,
    },
    {
      type: 'graph',
      name: 'purchases_last_30_days',
      title: 'Purchases Last 30 Days',
      dataType: DataType.currency,
    },
  ];

  constructor(
  private http: Http,
  private api: ApiService,
  ) {
  this.shuffle = this.shuffledArray;
  this.api.breadcrumb_data(undefined)
    .subscribe(
      result => {
        console.log(result);
        this.customersThisMonth = result.customersthismonth;
        this.moneySpentThisMonth = result.moneyspentthismonth;
        this.pointsTotal = result.pointstotal;
        this.averageTransactionToday = result.averagetransactiontoday;
      }
    );
  }

  // Fisher-Yates shuffle function
  public shuffle(array) {
    return new Promise(resolve => {
      let counter = array.length;

      // While there are elements in the array
      while (counter > 0) {
        // Pick a random index
        const index = Math.floor(Math.random() * counter);

        // Decrease counter by 1
        counter--;

        // And swap the last element with it
        const temp = array[counter];
        array[counter] = array[index];
        array[index] = temp;
      }

      this.shuffledArray = array;
      resolve(true);
    });
  }

  public brandSuccess = '#4dbd74';
  public brandInfo = '#63c2de';
  public brandDanger = '#f86c6b';

  // convert Hex to RGBA
  public convertHex(hex: string, opacity: number) {
    hex = hex.replace('#', '');
    const r = parseInt(hex.substring(0, 2), 16);
    const g = parseInt(hex.substring(2, 4), 16);
    const b = parseInt(hex.substring(4, 6), 16);

    const rgba = 'rgba(' + r + ', ' + g + ', ' + b + ', ' + opacity / 100 + ')';
    return rgba;
  }

  // events
  public chartClicked(e: any): void {
    console.log(e);
  }

  public chartHovered(e: any): void {
    console.log(e);
  }

  // mainChart

  public random(min: number, max: number) {
    return Math.floor(Math.random() * (max - min + 1) + min);
  }

  public mainChartElements = 27;
  public mainChartData1: Array<number> = [];
  public mainChartData2: Array<number> = [];
  public mainChartData3: Array<number> = [];

  public mainChartData: Array<any> = [
    {
      data: this.mainChartData1,
      label: 'Current'
    },
    {
      data: this.mainChartData2,
      label: 'Previous'
    },
    {
      data: this.mainChartData3,
      label: 'BEP'
    }
  ];
  /* tslint:disable:max-line-length */
  public mainChartLabels: Array<any> = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday', 'Monday', 'Thursday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];
  /* tslint:enable:max-line-length */
  public mainChartOptions: any = {
    responsive: true,
    maintainAspectRatio: false,
    scales: {
      xAxes: [{
        gridLines: {
          drawOnChartArea: false,
        },
        ticks: {
          callback: function(value: any) {
            return value.charAt(0);
          }
        }
      }],
      yAxes: [{
        ticks: {
          beginAtZero: true,
          maxTicksLimit: 5,
          stepSize: Math.ceil(250 / 5),
          max: 250
        }
      }]
    },
    elements: {
      line: {
        borderWidth: 2
      },
      point: {
        radius: 0,
        hitRadius: 10,
        hoverRadius: 4,
        hoverBorderWidth: 3,
      }
    },
    legend: {
      display: false
    }
  };
  public mainChartColours: Array<any> = [
    { // brandInfo
      backgroundColor: this.convertHex(this.brandInfo, 10),
      borderColor: this.brandInfo,
      pointHoverBackgroundColor: '#fff'
    },
    { // brandSuccess
      backgroundColor: 'transparent',
      borderColor: this.brandSuccess,
      pointHoverBackgroundColor: '#fff'
    },
    { // brandDanger
      backgroundColor: 'transparent',
      borderColor: this.brandDanger,
      pointHoverBackgroundColor: '#fff',
      borderWidth: 1,
      borderDash: [8, 5]
    }
  ];
  public mainChartLegend = false;
  public mainChartType = 'line';

  ngOnInit(): void {
    // generate random values for mainChart
    for (let i = 0; i <= this.mainChartElements; i++) {
      this.mainChartData1.push(this.random(50, 200));
      this.mainChartData2.push(this.random(80, 100));
      this.mainChartData3.push(this.random(50, 200));
    }
  }
}