Kpiheader

//  SAP Fiori for iOS Mentor
//  SAP Cloud Platform SDK for iOS Code Example
//  KPI Header
//  Copyright © 2018 SAP SE or an SAP affiliate company. All rights reserved.


import SAPFiori
import UIKit

class KPIHeaderExample: UITableViewController {

    var kpiExampleData = [FUIKPIContainer]()

    override func viewDidLoad() {
        super.viewDidLoad()

        tableView.backgroundColor = UIColor.preferredFioriColor(forStyle: .backgroundBase)
        tableView.separatorStyle = .none

        initExampleData()
        setKPIHeader()

    }

    private func buildKPIView(items: [FUIKPIViewItem], captionLabelText: String = "", captionLabelLines: Int = 1, colorScheme: FUIBackgroundColorScheme = .light, isEnabled: Bool = true) -> FUIKPIView {
        let kpiView = FUIKPIView()
        kpiView.items = items
        kpiView.captionlabel.text = captionLabelText
        kpiView.captionlabel.numberOfLines = captionLabelLines
        kpiView.colorScheme = colorScheme
        kpiView.isEnabled = isEnabled

        return kpiView
    }

    private func setKPIHeader() {
        let kpiHeader = FUIKPIHeader()
        var kpiItems = [FUIKPIContainer]()

        for index in 0...1 {
            kpiItems.append(kpiExampleData[index])
        }

        kpiHeader.items = kpiItems
        tableView.tableHeaderView = kpiHeader
    }

    private func initExampleData() {
        let kpiView1 = buildKPIView(items: [FUIKPIMetricItem(string: "2")],
                                    captionLabelText: "Customers Assisted",
                                    colorScheme: .dark,
                                    isEnabled: true)

        let kpiView2 = buildKPIView(items: [FUIKPIMetricItem(string: "5")],
                                    captionLabelText: "Still in Store Waiting for Checkout",
                                    captionLabelLines: 2,
                                    colorScheme: .dark,
                                    isEnabled: true)

        let kpiView3 = buildKPIView(items: [FUIKPIMetricItem(string: "4")],
                                    captionLabelText: "Orders",
                                    colorScheme: .dark,
                                    isEnabled: true)

        let kpiView4 = buildKPIView(items: [FUIKPIUnitItem(string: "$"),
                                            FUIKPIMetricItem(string: "294"),
                                            FUIKPIUnitItem(string: "k")],
                                    captionLabelText: "Average Spend per Calendar Year",
                                    captionLabelLines: 2,
                                    colorScheme: .dark,
                                    isEnabled: true)

        kpiExampleData = [kpiView1, kpiView2, kpiView3, kpiView4]
    }
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // return 0 as we display only the header
        return 0
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        return UITableViewCell()
    }
}