import UIKit
import LightweightCharts

class CandlestickChartViewController: UIViewController {

    private var chart: LightweightCharts!
    private var series: CandlestickSeries!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        if #available(iOS 13.0, *) {
            view.backgroundColor = .systemBackground
        } else {
            view.backgroundColor = .white
        }
        
        setupChart()
        setupData()
    }
    
    private func setupChart() {
        let options = ChartOptions(
            layout: LayoutOptions(backgroundColor: "#000000", textColor: "rgba(255, 255, 255, 0.9)"),
            rightPriceScale: VisiblePriceScaleOptions(borderColor: "rgba(197, 203, 206, 0.8)"),
            timeScale: TimeScaleOptions(borderColor: "rgba(197, 203, 206, 0.8)"),
            crosshair: CrosshairOptions(mode: .normal),
            grid: GridOptions(
                verticalLines: GridLineOptions(color: "rgba(197, 203, 206, 0.5)"),
                horizontalLines: GridLineOptions(color: "rgba(197, 203, 206, 0.5)")
            )
        )
        let chart = LightweightCharts(options: options)
        view.addSubview(chart)
        chart.translatesAutoresizingMaskIntoConstraints = false
        if #available(iOS 11.0, *) {
            NSLayoutConstraint.activate([
                chart.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
                chart.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
                chart.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
                chart.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor)
            ])
        } else {
            NSLayoutConstraint.activate([
                chart.leadingAnchor.constraint(equalTo: view.leadingAnchor),
                chart.trailingAnchor.constraint(equalTo: view.trailingAnchor),
                chart.topAnchor.constraint(equalTo: view.topAnchor),
                chart.bottomAnchor.constraint(equalTo: view.bottomAnchor)
            ])
        }
        self.chart = chart
    }
    
    private func setupData() {
        let options = CandlestickSeriesOptions(
            upColor: "rgba(255, 144, 0, 1)",
            downColor: "#000",
            borderUpColor: "rgba(255, 144, 0, 1)",
            borderDownColor: "rgba(255, 144, 0, 1)",
            wickUpColor: "rgba(255, 144, 0, 1)",
            wickDownColor: "rgba(255, 144, 0, 1)"
        )
        let series = chart.addCandlestickSeries(options: options)
        let data = [
            BarData(time: .string("2018-10-19"), open: 180.34, high: 180.99, low: 178.57, close: 179.85),
            BarData(time: .string("2018-10-22"), open: 180.82, high: 181.40, low: 177.56, close: 178.75),
            BarData(time: .string("2018-10-23"), open: 175.77, high: 179.49, low: 175.44, close: 178.53),
            BarData(time: .string("2018-10-24"), open: 178.58, high: 182.37, low: 176.31, close: 176.97),
            BarData(time: .string("2018-10-25"), open: 177.52, high: 180.50, low: 176.83, close: 179.07),
            BarData(time: .string("2018-10-26"), open: 176.88, high: 177.34, low: 170.91, close: 172.23),
            BarData(time: .string("2018-10-29"), open: 173.74, high: 175.99, low: 170.95, close: 173.20),
            BarData(time: .string("2018-10-30"), open: 173.16, high: 176.43, low: 172.64, close: 176.24),
            BarData(time: .string("2018-10-31"), open: 177.98, high: 178.85, low: 175.59, close: 175.88),
            BarData(time: .string("2018-11-01"), open: 176.84, high: 180.86, low: 175.90, close: 180.46),
            BarData(time: .string("2018-11-02"), open: 182.47, high: 183.01, low: 177.39, close: 179.93),
            BarData(time: .string("2018-11-05"), open: 181.02, high: 182.41, low: 179.30, close: 182.19),
            BarData(time: .string("2018-11-06"), open: 181.93, high: 182.65, low: 180.05, close: 182.01),
            BarData(time: .string("2018-11-07"), open: 183.79, high: 187.68, low: 182.06, close: 187.23),
            BarData(time: .string("2018-11-08"), open: 187.13, high: 188.69, low: 185.72, close: 188.00),
            BarData(time: .string("2018-11-09"), open: 188.32, high: 188.48, low: 184.96, close: 185.99),
            BarData(time: .string("2018-11-12"), open: 185.23, high: 186.95, low: 179.02, close: 179.43),
            BarData(time: .string("2018-11-13"), open: 177.30, high: 181.62, low: 172.85, close: 179.00),
            BarData(time: .string("2018-11-14"), open: 182.61, high: 182.90, low: 179.15, close: 179.90),
            BarData(time: .string("2018-11-15"), open: 179.01, high: 179.67, low: 173.61, close: 177.36),
            BarData(time: .string("2018-11-16"), open: 173.99, high: 177.60, low: 173.51, close: 177.02),
            BarData(time: .string("2018-11-19"), open: 176.71, high: 178.88, low: 172.30, close: 173.59),
            BarData(time: .string("2018-11-20"), open: 169.25, high: 172.00, low: 167.00, close: 169.05),
            BarData(time: .string("2018-11-21"), open: 170.00, high: 170.93, low: 169.15, close: 169.30),
            BarData(time: .string("2018-11-23"), open: 169.39, high: 170.33, low: 168.47, close: 168.85),
            BarData(time: .string("2018-11-26"), open: 170.20, high: 172.39, low: 168.87, close: 169.82),
            BarData(time: .string("2018-11-27"), open: 169.11, high: 173.38, low: 168.82, close: 173.22),
            BarData(time: .string("2018-11-28"), open: 172.91, high: 177.65, low: 170.62, close: 177.43),
            BarData(time: .string("2018-11-29"), open: 176.80, high: 177.27, low: 174.92, close: 175.66),
            BarData(time: .string("2018-11-30"), open: 175.75, high: 180.37, low: 175.11, close: 180.32),
            BarData(time: .string("2018-12-03"), open: 183.29, high: 183.50, low: 179.35, close: 181.74),
            BarData(time: .string("2018-12-04"), open: 181.06, high: 182.23, low: 174.55, close: 175.30),
            BarData(time: .string("2018-12-06"), open: 173.50, high: 176.04, low: 170.46, close: 175.96),
            BarData(time: .string("2018-12-07"), open: 175.35, high: 178.36, low: 172.24, close: 172.79),
            BarData(time: .string("2018-12-10"), open: 173.39, high: 173.99, low: 167.73, close: 171.69),
            BarData(time: .string("2018-12-11"), open: 174.30, high: 175.60, low: 171.24, close: 172.21),
            BarData(time: .string("2018-12-12"), open: 173.75, high: 176.87, low: 172.81, close: 174.21),
            BarData(time: .string("2018-12-13"), open: 174.31, high: 174.91, low: 172.07, close: 173.87),
            BarData(time: .string("2018-12-14"), open: 172.98, high: 175.14, low: 171.95, close: 172.29),
            BarData(time: .string("2018-12-17"), open: 171.51, high: 171.99, low: 166.93, close: 167.97),
            BarData(time: .string("2018-12-18"), open: 168.90, high: 171.95, low: 168.50, close: 170.04),
            BarData(time: .string("2018-12-19"), open: 170.92, high: 174.95, low: 166.77, close: 167.56),
            BarData(time: .string("2018-12-20"), open: 166.28, high: 167.31, low: 162.23, close: 164.16),
            BarData(time: .string("2018-12-21"), open: 162.81, high: 167.96, low: 160.17, close: 160.48),
            BarData(time: .string("2018-12-24"), open: 160.16, high: 161.40, low: 158.09, close: 158.14),
            BarData(time: .string("2018-12-26"), open: 159.46, high: 168.28, low: 159.44, close: 168.28),
            BarData(time: .string("2018-12-27"), open: 166.44, high: 170.46, low: 163.36, close: 170.32),
            BarData(time: .string("2018-12-28"), open: 171.22, high: 173.12, low: 168.60, close: 170.22),
            BarData(time: .string("2018-12-31"), open: 171.47, high: 173.24, low: 170.65, close: 171.82),
            BarData(time: .string("2019-01-02"), open: 169.71, high: 173.18, low: 169.05, close: 172.41),
            BarData(time: .string("2019-01-03"), open: 171.84, high: 171.84, low: 168.21, close: 168.61),
            BarData(time: .string("2019-01-04"), open: 170.18, high: 174.74, low: 169.52, close: 173.62),
            BarData(time: .string("2019-01-07"), open: 173.83, high: 178.18, low: 173.83, close: 177.04),
            BarData(time: .string("2019-01-08"), open: 178.57, high: 179.59, low: 175.61, close: 177.89),
            BarData(time: .string("2019-01-09"), open: 177.87, high: 181.27, low: 177.10, close: 179.73),
            BarData(time: .string("2019-01-10"), open: 178.03, high: 179.24, low: 176.34, close: 179.06),
            BarData(time: .string("2019-01-11"), open: 177.93, high: 180.26, low: 177.12, close: 179.41),
            BarData(time: .string("2019-01-14"), open: 177.59, high: 179.23, low: 176.90, close: 178.81),
            BarData(time: .string("2019-01-15"), open: 176.08, high: 177.82, low: 175.20, close: 176.47),
            BarData(time: .string("2019-01-16"), open: 177.09, high: 177.93, low: 175.86, close: 177.04),
            BarData(time: .string("2019-01-17"), open: 174.01, high: 175.46, low: 172.00, close: 174.87),
            BarData(time: .string("2019-01-18"), open: 176.98, high: 180.04, low: 176.18, close: 179.58),
            BarData(time: .string("2019-01-22"), open: 177.49, high: 178.60, low: 175.36, close: 177.11),
            BarData(time: .string("2019-01-23"), open: 176.59, high: 178.06, low: 174.53, close: 176.89),
            BarData(time: .string("2019-01-24"), open: 177.00, high: 177.53, low: 175.30, close: 177.29),
            BarData(time: .string("2019-01-25"), open: 179.78, high: 180.87, low: 178.61, close: 180.40),
            BarData(time: .string("2019-01-28"), open: 178.97, high: 179.99, low: 177.41, close: 179.83),
            BarData(time: .string("2019-01-29"), open: 178.96, high: 180.15, low: 178.09, close: 179.69),
            BarData(time: .string("2019-01-30"), open: 180.47, high: 184.20, low: 179.78, close: 182.18),
            BarData(time: .string("2019-01-31"), open: 181.50, high: 184.67, low: 181.06, close: 183.53),
            BarData(time: .string("2019-02-01"), open: 184.03, high: 185.15, low: 182.83, close: 184.37),
            BarData(time: .string("2019-02-04"), open: 184.30, high: 186.43, low: 183.84, close: 186.43),
            BarData(time: .string("2019-02-05"), open: 186.89, high: 186.99, low: 184.69, close: 186.39),
            BarData(time: .string("2019-02-06"), open: 186.69, high: 186.69, low: 184.06, close: 184.72),
            BarData(time: .string("2019-02-07"), open: 183.74, high: 184.92, low: 182.45, close: 184.07),
            BarData(time: .string("2019-02-08"), open: 183.05, high: 184.58, low: 182.72, close: 184.54),
            BarData(time: .string("2019-02-11"), open: 185.00, high: 185.42, low: 182.75, close: 182.92),
            BarData(time: .string("2019-02-12"), open: 183.84, high: 186.40, low: 183.52, close: 185.52),
            BarData(time: .string("2019-02-13"), open: 186.30, high: 188.68, low: 185.92, close: 188.41),
            BarData(time: .string("2019-02-14"), open: 187.50, high: 188.93, low: 186.00, close: 187.71),
            BarData(time: .string("2019-02-15"), open: 189.87, high: 192.62, low: 189.05, close: 192.39),
            BarData(time: .string("2019-02-19"), open: 191.71, high: 193.19, low: 191.28, close: 192.33),
            BarData(time: .string("2019-02-20"), open: 192.39, high: 192.40, low: 191.11, close: 191.85),
            BarData(time: .string("2019-02-21"), open: 191.85, high: 192.37, low: 190.61, close: 191.82),
            BarData(time: .string("2019-02-22"), open: 191.69, high: 192.54, low: 191.62, close: 192.39),
            BarData(time: .string("2019-02-25"), open: 192.75, high: 193.42, low: 189.96, close: 189.98),
            BarData(time: .string("2019-02-26"), open: 185.59, high: 188.47, low: 182.80, close: 188.30),
            BarData(time: .string("2019-02-27"), open: 187.90, high: 188.50, low: 183.21, close: 183.67),
            BarData(time: .string("2019-02-28"), open: 183.60, high: 185.19, low: 183.11, close: 185.14),
            BarData(time: .string("2019-03-01"), open: 185.82, high: 186.56, low: 182.86, close: 185.17),
            BarData(time: .string("2019-03-04"), open: 186.20, high: 186.24, low: 182.10, close: 183.81),
            BarData(time: .string("2019-03-05"), open: 184.24, high: 185.12, low: 183.25, close: 184.00),
            BarData(time: .string("2019-03-06"), open: 184.53, high: 184.97, low: 183.84, close: 184.45),
            BarData(time: .string("2019-03-07"), open: 184.39, high: 184.62, low: 181.58, close: 182.51),
            BarData(time: .string("2019-03-08"), open: 181.49, high: 181.91, low: 179.52, close: 181.23),
            BarData(time: .string("2019-03-11"), open: 182.00, high: 183.20, low: 181.20, close: 182.44),
            BarData(time: .string("2019-03-12"), open: 183.43, high: 184.27, low: 182.33, close: 184.00),
            BarData(time: .string("2019-03-13"), open: 183.24, high: 183.78, low: 181.08, close: 181.14),
            BarData(time: .string("2019-03-14"), open: 181.28, high: 181.74, low: 180.50, close: 181.61),
            BarData(time: .string("2019-03-15"), open: 182.30, high: 182.49, low: 179.57, close: 182.23),
            BarData(time: .string("2019-03-18"), open: 182.53, high: 183.48, low: 182.33, close: 183.42),
            BarData(time: .string("2019-03-19"), open: 184.19, high: 185.82, low: 183.48, close: 184.13),
            BarData(time: .string("2019-03-20"), open: 184.30, high: 187.12, low: 183.43, close: 186.10),
            BarData(time: .string("2019-03-21"), open: 185.50, high: 190.00, low: 185.50, close: 189.97),
            BarData(time: .string("2019-03-22"), open: 189.31, high: 192.05, low: 188.67, close: 188.75),
            BarData(time: .string("2019-03-25"), open: 188.75, high: 191.71, low: 188.51, close: 189.68),
            BarData(time: .string("2019-03-26"), open: 190.69, high: 192.19, low: 188.74, close: 189.34),
            BarData(time: .string("2019-03-27"), open: 189.65, high: 191.61, low: 188.39, close: 189.25),
            BarData(time: .string("2019-03-28"), open: 189.91, high: 191.40, low: 189.16, close: 190.06),
            BarData(time: .string("2019-03-29"), open: 190.85, high: 192.04, low: 190.14, close: 191.89),
            BarData(time: .string("2019-04-01"), open: 192.99, high: 195.90, low: 192.85, close: 195.64),
            BarData(time: .string("2019-04-02"), open: 195.50, high: 195.50, low: 194.01, close: 194.31),
            BarData(time: .string("2019-04-03"), open: 194.98, high: 198.78, low: 194.11, close: 198.61),
            BarData(time: .string("2019-04-04"), open: 199.00, high: 200.49, low: 198.02, close: 200.45),
            BarData(time: .string("2019-04-05"), open: 200.86, high: 203.13, low: 200.61, close: 202.06),
            BarData(time: .string("2019-04-08"), open: 201.37, high: 203.79, low: 201.24, close: 203.55),
            BarData(time: .string("2019-04-09"), open: 202.26, high: 202.71, low: 200.46, close: 200.90),
            BarData(time: .string("2019-04-10"), open: 201.26, high: 201.60, low: 198.02, close: 199.43),
            BarData(time: .string("2019-04-11"), open: 199.90, high: 201.50, low: 199.03, close: 201.48),
            BarData(time: .string("2019-04-12"), open: 202.13, high: 204.26, low: 202.13, close: 203.85),
            BarData(time: .string("2019-04-15"), open: 204.16, high: 205.14, low: 203.40, close: 204.86),
            BarData(time: .string("2019-04-16"), open: 205.25, high: 205.99, low: 204.29, close: 204.47),
            BarData(time: .string("2019-04-17"), open: 205.34, high: 206.84, low: 205.32, close: 206.55),
            BarData(time: .string("2019-04-18"), open: 206.02, high: 207.78, low: 205.10, close: 205.66),
            BarData(time: .string("2019-04-22"), open: 204.11, high: 206.25, low: 204.00, close: 204.78),
            BarData(time: .string("2019-04-23"), open: 205.14, high: 207.33, low: 203.43, close: 206.05),
            BarData(time: .string("2019-04-24"), open: 206.16, high: 208.29, low: 205.54, close: 206.72),
            BarData(time: .string("2019-04-25"), open: 206.01, high: 207.72, low: 205.06, close: 206.50),
            BarData(time: .string("2019-04-26"), open: 205.88, high: 206.14, low: 203.34, close: 203.61),
            BarData(time: .string("2019-04-29"), open: 203.31, high: 203.80, low: 200.34, close: 202.16),
            BarData(time: .string("2019-04-30"), open: 201.55, high: 203.75, low: 200.79, close: 203.70),
            BarData(time: .string("2019-05-01"), open: 203.20, high: 203.52, low: 198.66, close: 198.80),
            BarData(time: .string("2019-05-02"), open: 199.30, high: 201.06, low: 198.80, close: 201.01),
            BarData(time: .string("2019-05-03"), open: 202.00, high: 202.31, low: 200.32, close: 200.56),
            BarData(time: .string("2019-05-06"), open: 198.74, high: 199.93, low: 198.31, close: 199.63),
            BarData(time: .string("2019-05-07"), open: 196.75, high: 197.65, low: 192.96, close: 194.77),
            BarData(time: .string("2019-05-08"), open: 194.49, high: 196.61, low: 193.68, close: 195.17),
            BarData(time: .string("2019-05-09"), open: 193.31, high: 195.08, low: 191.59, close: 194.58),
            BarData(time: .string("2019-05-10"), open: 193.21, high: 195.49, low: 190.01, close: 194.58),
            BarData(time: .string("2019-05-13"), open: 191.00, high: 191.66, low: 189.14, close: 190.34),
            BarData(time: .string("2019-05-14"), open: 190.50, high: 192.76, low: 190.01, close: 191.62),
            BarData(time: .string("2019-05-15"), open: 190.81, high: 192.81, low: 190.27, close: 191.76),
            BarData(time: .string("2019-05-16"), open: 192.47, high: 194.96, low: 192.20, close: 192.38),
            BarData(time: .string("2019-05-17"), open: 190.86, high: 194.50, low: 190.75, close: 192.58),
            BarData(time: .string("2019-05-20"), open: 191.13, high: 192.86, low: 190.61, close: 190.95),
            BarData(time: .string("2019-05-21"), open: 187.13, high: 192.52, low: 186.34, close: 191.45),
            BarData(time: .string("2019-05-22"), open: 190.49, high: 192.22, low: 188.05, close: 188.91),
            BarData(time: .string("2019-05-23"), open: 188.45, high: 192.54, low: 186.27, close: 192.00),
            BarData(time: .string("2019-05-24"), open: 192.54, high: 193.86, low: 190.41, close: 193.59),
            BarData(time: .string("2019-05-24"), open: 192.54, high: 193.86, low: 190.41, close: 193.5)
        ]
        series.setData(data: data)
        self.series = series
    }

}