#import "MapViewController.h"

@implementation MapViewController {

CLLocationManager *locationManager;

Dixie *myDixie;

DixieProfileEntry *previousEntry;

NSArray *mockLocations;

CLLocation *actualMockLocation;

MKPointAnnotation *actualAnnocation;

}

- (void) viewDidLoad {

[super viewDidLoad];

// Setup location manager

locationManager = [[CLLocationManager alloc] init];

locationManager.delegate = self;

locationManager.desiredAccuracy = kCLLocationAccuracyKilometer;

[locationManager requestWhenInUseAuthorization];

[locationManager setDistanceFilter:100];

[locationManager startUpdatingLocation];

self.mapView.showsUserLocation = NO;

// Set annotation

actualAnnocation = [[MKPointAnnotation alloc] init];

actualAnnocation.coordinate = locationManager.location.coordinate;

[self.mapView addAnnotation:actualAnnocation];

[self.mapView setCenterCoordinate:locationManager.location.coordinate animated:YES];

// Initialise Dixie

myDixie = [Dixie new];

// Create mock locations

CLLocation *Shanghai = [[CLLocation alloc] initWithLatitude:31.2 longitude:121.5];

CLLocation *Moscow = [[CLLocation alloc] initWithLatitude:55.75 longitude:37.616667];

CLLocation *Tokyo = [[CLLocation alloc] initWithLatitude:35.683333 longitude:139.683333];

CLLocation *MexicoCity = [[CLLocation alloc] initWithLatitude:19.433333 longitude:-99.133333];

CLLocation *NewYorkCity = [[CLLocation alloc] initWithLatitude:40.7127 longitude:-74.0059];

CLLocation *London = [[CLLocation alloc] initWithLatitude:51.507222 longitude:-0.1275];

CLLocation *RioDeJeneiro = [[CLLocation alloc] initWithLatitude:-22.908333 longitude:-43.196389];

CLLocation *LosAngeles = [[CLLocation alloc] initWithLatitude:34.05 longitude:-118.25];

mockLocations = [NSArray arrayWithObjects:Shanghai, Moscow, Tokyo, MexicoCity, NewYorkCity, London, RioDeJeneiro, LosAngeles, nil];

}

- (void) viewDidDisappear:(BOOL)animated {

// Revert Dixie when change a Tab - next time it will start with the original state

myDixie.RevertIt(previousEntry);

// Update map

[self.mapView setCenterCoordinate:locationManager.location.coordinate animated:YES];

actualAnnocation.coordinate = locationManager.location.coordinate;

[locationManager stopUpdatingLocation];

}

- (IBAction)dixieChangeLocation:(id)sender {

// Set mock location and annocation

actualMockLocation = [mockLocations objectAtIndex:(arc4random() % 8)];

[self.mapView setCenterCoordinate:actualMockLocation.coordinate animated:YES];

actualAnnocation.coordinate = actualMockLocation.coordinate;

// Create a block provider

DixieBaseChaosProvider *provider = [DixieBlockChaosProvider block:^(DixieBaseChaosProvider *chaosProvider,

id victim,

DixieCallEnvironment *environment) {

// chaos: return with the actualMockLocation

NSMutableArray* myArguments = [environment.arguments mutableCopy];

NSArray *argument = [NSArray arrayWithObjects:actualMockLocation, nil];

myArguments[1] = argument;

environment.arguments = myArguments;

// forward the chaos

[chaosProvider forwardChaosOf:victim environment:environment to:[DixieNonChaosProvider new]];

}];

// Change locationManager's didUpdateToLocation:fromLocation: method

DixieProfileEntry *entry = [DixieProfileEntry entry:[self class] selector:@selector(locationManager:didUpdateLocations:) chaosProvider:provider];

// Revert the previously set entry

if (previousEntry != nil) {

myDixie.RevertIt(previousEntry);

}

// Set and apply the Entry

myDixie.Profile(entry).Apply();

// Save the previous entry - to be able to revert it

previousEntry = entry;

// Apply the chaos

myDixie.Profile(entry).Apply();

// Call locationManager to make sure that the didUpdateLocations is called

[locationManager startUpdatingLocation];

}

- (IBAction)dixieRevertChanges:(id)sender {

// Revert the previousy entry

myDixie.RevertIt(previousEntry);

// Reset Map

[self.mapView setCenterCoordinate:locationManager.location.coordinate animated:YES];

actualAnnocation.coordinate = locationManager.location.coordinate;

}

#pragma mark - CLLocationManagerDelegate

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error

{

NSLog(@"didFailWithError: %@", error);

UIAlertView *errorAlert = [[UIAlertView alloc]

initWithTitle:@"Error" message:@"Failed to Get Your Location" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];

[errorAlert show];

}

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations

{

NSLog(@"didUpdateLocations: %@", locations);

CLLocation *currentLocation = [locations objectAtIndex:0];

if (currentLocation != nil) {

// update the lon/lat labels

self.longitudeLabel.text = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.longitude];

self.latitudeLabel.text = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.latitude];

// update the annotation

actualAnnocation.coordinate = currentLocation.coordinate;

[self.mapView setCenterCoordinate:currentLocation.coordinate animated:YES];

}

}