//
//  MultipleLinesChartViewController.m
//  ChartsDemo
//
//  Copyright 2015 Daniel Cohen Gindi & Philipp Jahoda
//  A port of MPAndroidChart for iOS
//  Licensed under Apache License 2.0
//
//  https://github.com/danielgindi/Charts
//

#import "MultipleLinesChartViewController.h"
#import "ChartsDemo_iOS-Swift.h"

@interface MultipleLinesChartViewController () <ChartViewDelegate>

@property (nonatomic, strong) IBOutlet LineChartView *chartView;
@property (nonatomic, strong) IBOutlet UISlider *sliderX;
@property (nonatomic, strong) IBOutlet UISlider *sliderY;
@property (nonatomic, strong) IBOutlet UITextField *sliderTextX;
@property (nonatomic, strong) IBOutlet UITextField *sliderTextY;

@end

@implementation MultipleLinesChartViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.title = @"Multiple Lines Chart";
    
    self.options = @[
                     @{@"key": @"toggleValues", @"label": @"Toggle Values"},
                     @{@"key": @"toggleFilled", @"label": @"Toggle Filled"},
                     @{@"key": @"toggleCircles", @"label": @"Toggle Circles"},
                     @{@"key": @"toggleCubic", @"label": @"Toggle Cubic"},
                     @{@"key": @"toggleStepped", @"label": @"Toggle Stepped"},
                     @{@"key": @"toggleHighlight", @"label": @"Toggle Highlight"},
                     @{@"key": @"animateX", @"label": @"Animate X"},
                     @{@"key": @"animateY", @"label": @"Animate Y"},
                     @{@"key": @"animateXY", @"label": @"Animate XY"},
                     @{@"key": @"saveToGallery", @"label": @"Save to Camera Roll"},
                     @{@"key": @"togglePinchZoom", @"label": @"Toggle PinchZoom"},
                     @{@"key": @"toggleAutoScaleMinMax", @"label": @"Toggle auto scale min/max"},
                     @{@"key": @"toggleData", @"label": @"Toggle Data"},
                     ];
    
    _chartView.delegate = self;
    
    _chartView.chartDescription.enabled = NO;
    
    _chartView.leftAxis.enabled = NO;
    _chartView.rightAxis.drawAxisLineEnabled = NO;
    _chartView.rightAxis.drawGridLinesEnabled = NO;
    _chartView.xAxis.drawAxisLineEnabled = NO;
    _chartView.xAxis.drawGridLinesEnabled = NO;

    _chartView.drawGridBackgroundEnabled = NO;
    _chartView.drawBordersEnabled = NO;
    _chartView.dragEnabled = YES;
    [_chartView setScaleEnabled:YES];
    _chartView.pinchZoomEnabled = NO;
    
    ChartLegend *l = _chartView.legend;
    l.horizontalAlignment = ChartLegendHorizontalAlignmentRight;
    l.verticalAlignment = ChartLegendVerticalAlignmentTop;
    l.orientation = ChartLegendOrientationVertical;
    l.drawInside = NO;
    
    _sliderX.value = 20.0;
    _sliderY.value = 100.0;
    [self slidersValueChanged:nil];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)updateChartData
{
    if (self.shouldHideData)
    {
        _chartView.data = nil;
        return;
    }
    
    [self setDataCount:_sliderX.value range:_sliderY.value];
}

- (void)setDataCount:(int)count range:(double)range
{
    NSArray *colors = @[ChartColorTemplates.vordiplom[0], ChartColorTemplates.vordiplom[1], ChartColorTemplates.vordiplom[2]];
    
    NSMutableArray *dataSets = [[NSMutableArray alloc] init];
    
    for (int z = 0; z < 3; z++)
    {
        NSMutableArray *values = [[NSMutableArray alloc] init];
        
        for (int i = 0; i < count; i++)
        {
            double val = (double) (arc4random_uniform(range) + 3);
            [values addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
        }
        
        LineChartDataSet *d = [[LineChartDataSet alloc] initWithEntries:values label:[NSString stringWithFormat:@"DataSet %d", z + 1]];
        d.lineWidth = 2.5;
        d.circleRadius = 4.0;
        d.circleHoleRadius = 2.0;
        
        UIColor *color = colors[z % colors.count];
        [d setColor:color];
        [d setCircleColor:color];
        [dataSets addObject:d];
    }
    
    ((LineChartDataSet *)dataSets[0]).lineDashLengths = @[@5.f, @5.f];
    ((LineChartDataSet *)dataSets[0]).colors = ChartColorTemplates.vordiplom;
    ((LineChartDataSet *)dataSets[0]).circleColors = ChartColorTemplates.vordiplom;
    
    LineChartData *data = [[LineChartData alloc] initWithDataSets:dataSets];
    [data setValueFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:7.f]];
    _chartView.data = data;
}

- (void)optionTapped:(NSString *)key
{
    if ([key isEqualToString:@"toggleFilled"])
    {
        for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
        {
            set.drawFilledEnabled = !set.isDrawFilledEnabled;
        }
        
        [_chartView setNeedsDisplay];
        return;
    }
    
    if ([key isEqualToString:@"toggleCircles"])
    {
        for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
        {
            set.drawCirclesEnabled = !set.isDrawCirclesEnabled;
        }
        
        [_chartView setNeedsDisplay];
        return;
    }
    
    if ([key isEqualToString:@"toggleCubic"])
    {
        for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
        {
            set.mode = set.mode == LineChartModeCubicBezier ? LineChartModeLinear : LineChartModeCubicBezier;
        }
        
        [_chartView setNeedsDisplay];
        return;
    }

    if ([key isEqualToString:@"toggleStepped"])
    {
        for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
        {
            switch (set.mode) {
                case LineChartModeLinear:
                case LineChartModeCubicBezier:
                case LineChartModeHorizontalBezier:
                    set.mode = LineChartModeStepped;
                    break;
                case LineChartModeStepped: set.mode = LineChartModeLinear;
            }
        }

        [_chartView setNeedsDisplay];
    }
    
    [super handleOption:key forChartView:_chartView];
}

#pragma mark - Actions

- (IBAction)slidersValueChanged:(id)sender
{
    _sliderTextX.text = [@((int)_sliderX.value) stringValue];
    _sliderTextY.text = [@((int)_sliderY.value) stringValue];
    
    [self updateChartData];
}

#pragma mark - ChartViewDelegate

- (void)chartValueSelected:(ChartViewBase * __nonnull)chartView entry:(ChartDataEntry * __nonnull)entry highlight:(ChartHighlight * __nonnull)highlight
{
    NSLog(@"chartValueSelected");
}

- (void)chartValueNothingSelected:(ChartViewBase * __nonnull)chartView
{
    NSLog(@"chartValueNothingSelected");
}

@end