#import <Mapbox.h>
#import <XCTest/XCTest.h>
#import <TargetConditionals.h>

#if TARGET_OS_IPHONE
    #define MLNEdgeInsets UIEdgeInsets
    #define MLNEdgeInsetsMake UIEdgeInsetsMake
#else
    #define MLNEdgeInsets NSEdgeInsets
    #define MLNEdgeInsetsMake NSEdgeInsetsMake
#endif

@interface MLNMapProjectionTests : XCTestCase

@property (nonatomic, retain) MLNMapView *mapView;
@property (nonatomic, retain) MLNMapProjection *mapProjection;

@end

@implementation MLNMapProjectionTests

- (void)setUp {
    [super setUp];

    [MLNSettings setApiKey:@"pk.feedcafedeadbeefbadebede"];
    NSURL *styleURL = [[NSBundle bundleForClass:[self class]] URLForResource:@"one-liner" withExtension:@"json"];
    self.mapView = [[MLNMapView alloc] initWithFrame:CGRectMake(0, 0, 200, 200) styleURL:styleURL];

    [self.mapView setVisibleCoordinateBounds:MLNCoordinateBoundsMake(CLLocationCoordinate2DMake(1.0, 1.0),
                                                                     CLLocationCoordinate2DMake(2.0, 2.0))];

    self.mapProjection = self.mapView.mapProjection;
}

- (void)tearDown {
    self.mapView = nil;
    self.mapProjection = nil;
    [MLNSettings setApiKey:nil];

    [super tearDown];
}

- (void)testMapProjectionCamera {
    XCTAssertTrue([self.mapProjection.camera isEqualToMapCamera:self.mapView.camera],
                  @"Map projection camera must be equal to the map view's one");
}

- (void)testMapProjectionCameraSet {
    MLNCoordinateBounds newBounds = MLNCoordinateBoundsMake(CLLocationCoordinate2DMake(3.0, 3.0),
                                                            CLLocationCoordinate2DMake(4.0, 4.0));
    MLNEdgeInsets paddings = MLNEdgeInsetsMake(10.0, 10.0, 10.0, 10.0);

    MLNMapCamera *newCamera = [self.mapView cameraThatFitsCoordinateBounds:newBounds edgePadding:paddings];
    [self.mapProjection setCamera:newCamera withEdgeInsets:paddings];

    XCTAssertTrue([self.mapProjection.camera isEqualToMapCamera:newCamera],
                  @"Map projection camera must be equal to the one just set");

    CLLocationCoordinate2D topLeftCoordinate = [self.mapProjection convertPoint:CGPointMake(10.0, 10.0)];
    XCTAssertEqualWithAccuracy(topLeftCoordinate.latitude, 4.0, 1e-3);
    XCTAssertEqualWithAccuracy(topLeftCoordinate.longitude, 3.0, 1e-3);

    CLLocationCoordinate2D bottomRightCoordinate = [self.mapProjection convertPoint:CGPointMake(190.0, 190.0)];
    XCTAssertEqualWithAccuracy(bottomRightCoordinate.latitude, 3.0, 1e-3);
    XCTAssertEqualWithAccuracy(bottomRightCoordinate.longitude, 4.0, 1e-3);

    CLLocationCoordinate2D centerCoordinate = [self.mapProjection convertPoint:CGPointMake(100.0, 100.0)];
    XCTAssertEqualWithAccuracy(centerCoordinate.latitude, 3.5, 1e-3);
    XCTAssertEqualWithAccuracy(centerCoordinate.longitude, 3.5, 1e-3);
}

- (void)testMapProjectionVisibleBoundsSet {
    MLNCoordinateBounds newBounds = MLNCoordinateBoundsMake(CLLocationCoordinate2DMake(3.0, 3.0),
                                                            CLLocationCoordinate2DMake(4.0, 4.0));
    MLNEdgeInsets paddings = MLNEdgeInsetsMake(10.0, 10.0, 10.0, 10.0);

    [self.mapProjection setVisibleCoordinateBounds:newBounds edgePadding:paddings];

    CLLocationCoordinate2D topLeftCoordinate = [self.mapProjection convertPoint:CGPointMake(10.0, 10.0)];
    XCTAssertEqualWithAccuracy(topLeftCoordinate.latitude, 4.0, 1e-3);
    XCTAssertEqualWithAccuracy(topLeftCoordinate.longitude, 3.0, 1e-3);

    CLLocationCoordinate2D bottomRightCoordinate = [self.mapProjection convertPoint:CGPointMake(190.0, 190.0)];
    XCTAssertEqualWithAccuracy(bottomRightCoordinate.latitude, 3.0, 1e-3);
    XCTAssertEqualWithAccuracy(bottomRightCoordinate.longitude, 4.0, 1e-3);

    CLLocationCoordinate2D centerCoordinate = [self.mapProjection convertPoint:CGPointMake(100.0, 100.0)];
    XCTAssertEqualWithAccuracy(centerCoordinate.latitude, 3.5, 1e-3);
    XCTAssertEqualWithAccuracy(centerCoordinate.longitude, 3.5, 1e-3);
}

@end