//
//  GroupedBars.swift
//  SciChart POC
//
//  Created by Hal Mueller on 3/8/21.
//

import UIKit
import SciChart

class VerticallyStackedBarsViewController: UIViewController {

    @IBOutlet var surface: SCIChartSurface?

    override func viewDidLoad() {
        super.viewDidLoad()
        
        SCIChartSurfaceBase.isSimulatorPerformanceWatermarkHidden = true
        let surface = SCIChartSurface()
        surface.debugWhySciChartDoesntRender = false
        
        surface.translatesAutoresizingMaskIntoConstraints = false
        self.view.addSubview(surface)
        surface.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor).isActive = true
        surface.bottomAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.bottomAnchor).isActive = true
        surface.leftAnchor.constraint(equalTo: self.view.leftAnchor).isActive = true
        surface.rightAnchor.constraint(equalTo: self.view.rightAnchor).isActive = true
        
        let xAxis = SCINumericAxis()
        xAxis.growBy = SCIDoubleRange(min: 0.05, max: 0.05)
        
        let yAxisLeft = SCINumericAxis()
        yAxisLeft.growBy = SCIDoubleRange(min: 0.05, max: 0.05)
        yAxisLeft.axisAlignment = .left
        
        surface.xAxes.add(xAxis)
        surface.yAxes.add(yAxisLeft)
        
        let count = 30
        let xValues = SCIDoubleValues(capacity: count)
        let yValuesLeftSingle = SCIDoubleValues(capacity: count)
        let yValuesLeftDouble = SCIDoubleValues(capacity: count)
        for i in 1 ... count {
            let x = 10.0 * Double(i) / Double(count)
            let y1 = sin(2 * x)
            let y2 = 2 * sin(2 * x)
            xValues.add(x)
            yValuesLeftSingle.add(y1)
            yValuesLeftDouble.add(y2)
        }
        
        let dataSeriesLeftSingle = SCIXyDataSeries(xType: .double, yType: .double)
        dataSeriesLeftSingle.append(x: xValues, y: yValuesLeftSingle)
        
        let dataSeriesLeftDouble = SCIXyDataSeries(xType: .double, yType: .double)
        dataSeriesLeftDouble.append(x: xValues, y: yValuesLeftDouble)
        
        let rsLeftSingle = SCIStackedColumnRenderableSeries()
        rsLeftSingle.dataSeries = dataSeriesLeftSingle
        rsLeftSingle.yAxisId = yAxisLeft.axisId
        rsLeftSingle.fillBrushStyle = SCISolidBrushStyle(color: UIColor.yellow)
        rsLeftSingle.strokeStyle = SCISolidPenStyle(color: UIColor.yellow, thickness: 2.0)

        let rsLeftDouble = SCIStackedColumnRenderableSeries()
        rsLeftDouble.dataSeries = dataSeriesLeftDouble
        rsLeftDouble.yAxisId = yAxisLeft.axisId
        rsLeftDouble.fillBrushStyle = SCISolidBrushStyle(color: UIColor.blue)
        rsLeftDouble.strokeStyle = SCISolidPenStyle(color: UIColor.blue, thickness: 2.0)
        
        let stacks = SCIVerticallyStackedColumnsCollection()
        stacks.add(rsLeftSingle)
        stacks.add(rsLeftDouble)
        surface.renderableSeries.add(stacks)

        let legendModifier = SCILegendModifier()
        surface.chartModifiers.add(legendModifier)
    }


}