Jasonette/JASONETTE-iOS

//
//  JasonMapComponent.m
//  Jasonette
//
//  Copyright © 2016 gliechtenstein. All rights reserved.
//
#import "JasonMapComponent.h"

@implementation JasonMapComponent
+ (UIView *)build: (MKMapView *)component withJSON: (NSDictionary *)json withOptions: (NSDictionary *)options{

    if(!component){
        component = [[MKMapView alloc] init];
    }
    [component setShowsUserLocation:YES];
    
    // Map Style
    NSDictionary *style = json[@"style"];
    component.mapType = MKMapTypeStandard;
    if(style && style[@"type"]){
        if([style[@"type"] isEqualToString:@"satellite"]){
            component.mapType = MKMapTypeSatellite;
        } else if([style[@"type"] isEqualToString:@"hybrid"]){
            component.mapType = MKMapTypeHybrid;
        } else if([style[@"type"] isEqualToString:@"hybrid_flyover"]){
            component.mapType = MKMapTypeHybridFlyover;
        } else if([style[@"type"] isEqualToString:@"satellite_flyover"]){
            component.mapType = MKMapTypeSatelliteFlyover;
        }
    }
    
    // store the payload to the component so that it can be accessed later
    // (example inside the mapViewDidFinishLoadingMap delegate)
    
    component.payload = [json mutableCopy];
    component.delegate = (id<MKMapViewDelegate>) self;
    
    // Apply Common Style
    [self stylize:json component:component];
    
    return component;
}
+ (void)mapViewDidFinishLoadingMap:(MKMapView *)component{
    
    // if already finished rendering, don't set the region or add pins
    if(!component.payload[@"finished"]){
        // Region
        [self setRegion: component];
        
        // Pins
        NSArray *pins = component.payload[@"pins"];
        if(pins && pins.count > 0){
            [self addPins: pins toMapView: component];
        }
        component.payload[@"finished"] = @YES;
    }
}
+ (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
    NSDictionary *payload = ((NSObject *)view.annotation).payload;
    if(payload[@"action"]) {
        [[Jason client] call:payload[@"action"]];
    } else if(payload[@"href"]) {
        [[Jason client] go:payload[@"href"]];
    }
}
+ (void)addPins: (NSArray *)pins toMapView: (MKMapView *)mapView{
    for(int i = 0 ; i < pins.count ; i++){
        NSDictionary *pin = pins[i];
        if(pin[@"coord"]){
            CLLocation *coord = [self pinFromCoordinateString:pin[@"coord"]];
            MKPointAnnotation *annotation = [[MKPointAnnotation alloc] init];
            NSString *image = pin[@"image"];
            if(image){
                // todo
            } else {
                NSString *title = pin[@"title"];
                if(!title){
                    title = @"";
                }
                NSString *description = pin[@"description"];
                if(!description){
                    description = @"";
                }
                [annotation setTitle:[title description]];
                [annotation setSubtitle:[description description]];
            }
            [annotation setCoordinate:coord.coordinate];
            [mapView addAnnotation:annotation];

            annotation.payload = [pin mutableCopy];
            
            if(pin[@"style"]){
                if(pin[@"style"][@"selected"]){
                    [mapView selectAnnotation:annotation animated:NO];
                }
            }
            
        }
    }
}
+ (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
    if ([annotation isKindOfClass:[MKUserLocation class]])
        return nil;
    
    MKAnnotationView *annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"location"];
    annotationView.canShowCallout = YES;
    annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    
    
    return annotationView;
}

/*
+ (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{
    [self setRegion:mapView];
}
 */
+ (CLLocation *)pinFromCoordinateString: (NSString *)coord{
    NSArray *coord_array = [coord componentsSeparatedByString:@","];
    CLLocation *location = nil;
    if(coord_array.count == 2){
        CLLocationDegrees latitude;
        CLLocationDegrees longitude;
        latitude = [coord_array[0] doubleValue];
        longitude = [coord_array[1] doubleValue];
        location = [[CLLocation alloc]initWithLatitude:latitude longitude:longitude];
    }
    return location;
}
+ (void)setRegion:(MKMapView *)mapView{
    // Map Region
    // 1. If 'coord' exists, set the center. Otherwise, use the current location
    // 2. use 'width' and 'height' to create the visible area
    
    // Default location is current location
    CLLocation *location;
    
    NSDictionary *region = mapView.payload[@"region"];
    
    // override with data
    if(region && region[@"coord"]){
        location = [self pinFromCoordinateString: region[@"coord"]];
    }
    
    if(location){
        
        CLLocationDistance width = 1000;
        CLLocationDistance height = 1000;
        if(region[@"width"]){
            width = [region[@"width"] doubleValue];
        }
        if(region[@"height"]){
            height = [region[@"height"] doubleValue];
        }
        
        if(region[@"width"] && !region[@"height"]){
            height = width;
        } else if(!region[@"width"] && region[@"height"]){
            width = height;
        }
        
        MKCoordinateRegion r = MKCoordinateRegionMakeWithDistance ( location.coordinate, width, height);
        [mapView setRegion:r animated:NO];
    }
}


@end