//  Created by xudong wu on 02/03/2017.
//  Copyright © 2017 wuxudong. All rights reserved.
//

import Foundation

import SwiftyJSON
import DGCharts

class PieDataExtract : DataExtract {
    override func createData() -> ChartData {
        return PieChartData();
    }

    override func createDataSet(_ entries: [ChartDataEntry], label: String) -> ChartDataSetProtocol {
        return PieChartDataSet(entries: entries, label: label)
    }

    override func dataSetConfig(_ dataSet: ChartDataSetProtocol, config: JSON) {
        let pieDataSet = dataSet as! PieChartDataSet;

        ChartDataSetConfigUtils.commonConfig(pieDataSet, config: config);

        // PieDataSet only config
        if config["sliceSpace"].float != nil {
            pieDataSet.sliceSpace = CGFloat(config["sliceSpace"].floatValue)
        }

        if config["selectionShift"].float != nil {
            pieDataSet.selectionShift = CGFloat(config["selectionShift"].floatValue)
        }

        if config["xValuePosition"].string != nil {
            pieDataSet.xValuePosition = BridgeUtils.parsePieChartDataSetValuePosition(config["xValuePosition"].stringValue)
        }

        if config["yValuePosition"].string != nil {
            pieDataSet.yValuePosition = BridgeUtils.parsePieChartDataSetValuePosition(config["yValuePosition"].stringValue)
        }

        if config["valueLinePart1Length"].float != nil {
            pieDataSet.valueLinePart1Length = CGFloat(config["valueLinePart1Length"].floatValue)
        }

        if config["valueLinePart2Length"].float != nil {
            pieDataSet.valueLinePart2Length = CGFloat(config["valueLinePart2Length"].floatValue)
        }

        if config["valueLineColor"].int != nil {
            pieDataSet.valueLineColor = RCTConvert.uiColor(config["valueLineColor"].intValue);
        }

        if config["valueLineWidth"].float != nil {
            pieDataSet.valueLineWidth = CGFloat(config["valueLineWidth"].floatValue)
        }

        if config["valueLinePart1OffsetPercentage"].float != nil {
            pieDataSet.valueLinePart1OffsetPercentage = CGFloat(config["valueLinePart1OffsetPercentage"].floatValue)
        }

        if config["valueLineVariableLength"].bool != nil {
            pieDataSet.valueLineVariableLength = config["valueLineVariableLength"].boolValue
        }

    }

    override func createEntry(_ values: [JSON], index: Int) -> ChartDataEntry {
        var entry: PieChartDataEntry;

        let item = values[index];

        if item.dictionary != nil {
            let dict = item;

            var value : Double;
            if dict["value"].double != nil {
                value = Double((dict["value"].doubleValue));
            } else {
                fatalError("invalid data " + values.description);
            }

            if dict["label"].string != nil {
                entry = PieChartDataEntry(value: value, label: dict["label"].stringValue)
            } else {
                entry = PieChartDataEntry(value: value)
            }

            entry.data = dict as AnyObject?
        } else if item.double != nil {
            entry = PieChartDataEntry(value : item.doubleValue);
        } else {
            fatalError("invalid data " + values.description);
        }

        return entry;
    }
}