#import "ViewController.h"

@import Vietbando;
@import VietbandoServices;

@interface ViewController ()
@property (nonatomic) IBOutlet VBDMapView *mapView;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)viewWillAppear:(BOOL)animated{
    
    if ([VBDAccountManager accessToken].length == 0)
    {
        UIAlertController*alertController = [UIAlertController alertControllerWithTitle:@"Register Key" message:@"Enter your Vietbando Register Key:" preferredStyle:UIAlertControllerStyleAlert];
        [alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField)
         {
             textField.keyboardType = UIKeyboardTypeURL;
             textField.autocorrectionType = UITextAutocorrectionTypeNo;
             textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
         }];
        
        [alertController addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:nil]];
        UIAlertAction *OKAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action)
                                   {
                                       UITextField *textField = alertController.textFields.firstObject;
                                       NSString *accessToken = textField.text;
                                       [VBDAccountManager setAccessToken:accessToken];
                                       
                                       [self.mapView reloadStyle:self];
                                       [self Routing];
                                   }];
        [alertController addAction:OKAction];
        [self presentViewController:alertController animated:YES completion:nil];
    }
    else{
        [self Routing];
    }
}

//#pragma mark Direction
- (void) Routing{
    CLLocationCoordinate2D points[2] = {
        CLLocationCoordinate2DMake(10.7829318,106.698102),
        CLLocationCoordinate2DMake(10.7876535,106.678276)
    };
    VBDPointAnnotation *pS = [[VBDPointAnnotation alloc] init];
    pS.coordinate = points[0];
    pS.title = @"Điểm bắt đầu";
    [self.mapView addAnnotation:pS];
    
    VBDPointAnnotation *pE = [[VBDPointAnnotation alloc] init];
    pE.coordinate = points[1];
    pE.title = @"Điểm kết thúc";
    [self.mapView addAnnotation:pE];
    
    NSString *sRegisterKey = [VBDAccountManager accessToken];
    [VBDServices Direction:points num:2 registerKey:sRegisterKey
        success:^(id obj) {
            NSDictionary *json = (NSDictionary *)obj;
            if( json && [json isKindOfClass:[NSDictionary class]]){
                NSMutableArray *fullPath = [json objectForKey:@"FullPath"];
                NSMutableArray *path = [fullPath objectAtIndex:0];
                NSArray *points = [path objectAtIndex:0];
                int numberOfCoordinates = (int)[points count]/2;
                // unpacking an array of NSValues into memory
                CLLocationCoordinate2D *coordinates = malloc(numberOfCoordinates * sizeof(CLLocationCoordinate2D));
                for(int i = 0; i < numberOfCoordinates; i++) {
                    int index = i*2;
                    double lon = [[points objectAtIndex:index] doubleValue];
                    double lat = [[points objectAtIndex:index+1] doubleValue];
                    coordinates[i] = CLLocationCoordinate2DMake( lat, lon);
                }
                [self drawShape:coordinates numberOfCoordinates:numberOfCoordinates];
                free(coordinates);
            }
            else{
                [self showError:@"Không tìm thấy!"];
            }
        }
        fail:^(id obj) {
            [self showError:(NSString *)obj];
        }
     ];
}

- (void) showError:(NSString *)errorText{
    UIAlertController*alertController= [UIAlertController alertControllerWithTitle:@"Error" message:errorText preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction* ok = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];
    [alertControlleraddAction:ok];
    [self presentViewController:alertController animated:YES completion:nil];
}

#pragma mark draw shape
- (void)drawShape:(CLLocationCoordinate2D *)coordinates numberOfCoordinates:(NSUInteger)numberOfCoordinates
{
    // Create our shape with the formatted coordinates array
    VBDPolyline *shape = [VBDPolyline polylineWithCoordinates:coordinates count:numberOfCoordinates];
    // Add the shape to the map
    [self.mapView addAnnotation:shape];
    
    [self.mapView setVisibleCoordinates:coordinates count:numberOfCoordinates edgePadding:UIEdgeInsetsMake(25, 10, 45, 10) animated:YES];
}

- (CGFloat)mapView:(VBDMapView *)mapView lineWidthForPolylineAnnotation:(VBDPolyline *)annotation
{
    // Set the line width for polyline annotations
    return 6.0f;
}

- (CGFloat)mapView:(VBDMapView *)mapView alphaForShapeAnnotation:(VBDShape *)annotation
{
    // Set the alpha for shape annotations to 0.5 (half opacity)
    return 0.5f;
}

- (UIColor *)mapView:(VBDMapView *)mapView strokeColorForShapeAnnotation:(VBDShape *)annotation
{
    // Set the stroke color for shape annotations
    return [UIColor blueColor];
}

- (UIColor *)mapView:(VBDMapView *)mapView fillColorForPolygonAnnotation:(VBDPolygon *)annotation
{
    // Mapbox cyan fill color
    return [UIColor colorWithRed:59.0f/255.0f green:178.0f/255.0f blue:208.0f/255.0f alpha:1.0f];
}

@end