extension APIEndpoint {

    @discardableResult
    public static func getChartData(symbol: String, resolution: String, fromDate: Date, toDate: Date, success: RequestSuccess<BarData>? = nil, error: RequestError? = nil) -> Request? {
        var url = PRICE_HISTORY_URL + "/TChart/history?symbol=\(symbol)&resolution=\(resolution)"

        let fromInterval = lround(fromDate.timeIntervalSince1970)
        let toInterval = lround(toDate.timeIntervalSince1970)

        url = url + "&from=\(fromInterval)&to=\(toInterval)"

        return get(url, success: success, error: error, parser: { (response: AnyObject) -> BarData in
            // Parse response
            guard let responseData = response as? [String: AnyObject] else {
                throw ParserError.invalidResponseData
            }
            print(responseData)
            return BarData(data: responseData)
        })
    }

}


//=============
import Foundation

public class BarData {

    var bars: [AnyObject] = [AnyObject]()

    init(data: [AnyHashable: Any]) {
        guard let closeData = data["c"] as? [Double],
            let highData = data["h"] as? [Double],
            let lowData = data["l"] as? [Double],
            let openData = data["o"] as? [Double],
            let timeData = data["t"] as? [Int],
            let volData = data["v"] as? [Double] else {
                return
        }

        bars = [AnyObject]()
        for i in 0..<closeData.count {
            var barData = [AnyObject]()
            if timeData.count > i && openData.count > i && highData.count > i && lowData.count > i && volData.count > i {
                barData.append(timeData[i] as AnyObject)
                barData.append(Float(openData[i]) as AnyObject)
                barData.append(Float(highData[i]) as AnyObject)
                barData.append(Float(lowData[i]) as AnyObject)
                barData.append(Float(closeData[i]) as AnyObject)
                barData.append(Float(volData[i]) as AnyObject)

                bars.append(barData as AnyObject)
            }

        }
    }

}