//
//  AIRGoogleMapManager.m
//  AirMaps
//
//  Created by Gil Birman on 9/1/16.
//


#import "AIRGoogleMapManager.h"
#import <React/RCTViewManager.h>
#import <React/RCTBridge.h>
#import <React/RCTUIManager.h>
#import <React/RCTConvert+CoreLocation.h>
#import <React/RCTEventDispatcher.h>
#import <React/RCTViewManager.h>
#import <React/RCTConvert.h>
#import <React/UIView+React.h>
#import "RCTConvert+GMSMapViewType.h"
#import "AIRGoogleMap.h"
#import "AIRMapMarker.h"
#import "AIRMapPolyline.h"
#import "AIRMapPolygon.h"
#import "AIRMapCircle.h"
#import "SMCalloutView.h"
#import "AIRGoogleMapMarker.h"
#import "RCTConvert+AirMap.h"

#import <MapKit/MapKit.h>
#import <QuartzCore/QuartzCore.h>

static NSString *const RCTMapViewKey = @"MapView";


@interface AIRGoogleMapManager() <GMSMapViewDelegate>
{
  BOOL didCallOnMapReady;
}
  
@end

@implementation AIRGoogleMapManager

RCT_EXPORT_MODULE()

- (UIView *)view
{
  AIRGoogleMap *map = [AIRGoogleMap new];
  map.delegate = self;
  return map;
}

RCT_EXPORT_VIEW_PROPERTY(initialRegion, MKCoordinateRegion)
RCT_EXPORT_VIEW_PROPERTY(region, MKCoordinateRegion)
RCT_EXPORT_VIEW_PROPERTY(showsBuildings, BOOL)
RCT_EXPORT_VIEW_PROPERTY(showsCompass, BOOL)
//RCT_EXPORT_VIEW_PROPERTY(showsScale, BOOL)  // Not supported by GoogleMaps
RCT_EXPORT_VIEW_PROPERTY(showsTraffic, BOOL)
RCT_EXPORT_VIEW_PROPERTY(zoomEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(rotateEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(scrollEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(pitchEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(showsUserLocation, BOOL)
RCT_EXPORT_VIEW_PROPERTY(showsMyLocationButton, BOOL)
RCT_EXPORT_VIEW_PROPERTY(showsIndoorLevelPicker, BOOL)
RCT_EXPORT_VIEW_PROPERTY(customMapStyleString, NSString)
RCT_EXPORT_VIEW_PROPERTY(mapPadding, UIEdgeInsets)
RCT_EXPORT_VIEW_PROPERTY(onMapReady, RCTBubblingEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onPress, RCTBubblingEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onLongPress, RCTBubblingEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onChange, RCTBubblingEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onMarkerPress, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onRegionChange, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onRegionChangeComplete, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(mapType, GMSMapViewType)
RCT_EXPORT_VIEW_PROPERTY(minZoomLevel, CGFloat)
RCT_EXPORT_VIEW_PROPERTY(maxZoomLevel, CGFloat)

RCT_EXPORT_METHOD(animateToRegion:(nonnull NSNumber *)reactTag
                  withRegion:(MKCoordinateRegion)region
                  withDuration:(CGFloat)duration)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      // Core Animation must be used to control the animation's duration
      // See http://stackoverflow.com/a/15663039/171744
      [CATransaction begin];
      [CATransaction setAnimationDuration:duration/1000];
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;
      GMSCameraPosition *camera = [AIRGoogleMap makeGMSCameraPositionFromMap:mapView andMKCoordinateRegion:region];
      [mapView animateToCameraPosition:camera];
      [CATransaction commit];
    }
  }];
}

RCT_EXPORT_METHOD(animateToCoordinate:(nonnull NSNumber *)reactTag
                  withRegion:(CLLocationCoordinate2D)latlng
                  withDuration:(CGFloat)duration)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      [CATransaction begin];
      [CATransaction setAnimationDuration:duration/1000];
      [(AIRGoogleMap *)view animateToLocation:latlng];
      [CATransaction commit];
    }
  }];
}

RCT_EXPORT_METHOD(animateToViewingAngle:(nonnull NSNumber *)reactTag
                  withAngle:(double)angle
                  withDuration:(CGFloat)duration)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      [CATransaction begin];
      [CATransaction setAnimationDuration:duration/1000];
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;
      [mapView animateToViewingAngle:angle];
      [CATransaction commit];
    }
  }];
}

RCT_EXPORT_METHOD(animateToBearing:(nonnull NSNumber *)reactTag
                  withBearing:(CGFloat)bearing
                  withDuration:(CGFloat)duration)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      [CATransaction begin];
      [CATransaction setAnimationDuration:duration/1000];
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;
      [mapView animateToBearing:bearing];
      [CATransaction commit];
    }
  }];
}

RCT_EXPORT_METHOD(fitToElements:(nonnull NSNumber *)reactTag
                  animated:(BOOL)animated)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;

      CLLocationCoordinate2D myLocation = ((AIRGoogleMapMarker *)(mapView.markers.firstObject)).realMarker.position;
      GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] initWithCoordinate:myLocation coordinate:myLocation];

      for (AIRGoogleMapMarker *marker in mapView.markers)
        bounds = [bounds includingCoordinate:marker.realMarker.position];

      [mapView animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withPadding:55.0f]];
    }
  }];
}

RCT_EXPORT_METHOD(fitToSuppliedMarkers:(nonnull NSNumber *)reactTag
                  markers:(nonnull NSArray *)markers
                  animated:(BOOL)animated)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;

      NSPredicate *filterMarkers = [NSPredicate predicateWithBlock:^BOOL(id evaluatedObject, NSDictionary *bindings) {
        AIRGoogleMapMarker *marker = (AIRGoogleMapMarker *)evaluatedObject;
        return [marker isKindOfClass:[AIRGoogleMapMarker class]] && [markers containsObject:marker.identifier];
      }];

      NSArray *filteredMarkers = [mapView.markers filteredArrayUsingPredicate:filterMarkers];

      CLLocationCoordinate2D myLocation = ((AIRGoogleMapMarker *)(filteredMarkers.firstObject)).realMarker.position;
      GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] initWithCoordinate:myLocation coordinate:myLocation];

      for (AIRGoogleMapMarker *marker in filteredMarkers)
        bounds = [bounds includingCoordinate:marker.realMarker.position];

      [mapView animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withPadding:55.0f]];
    }
  }];
}

RCT_EXPORT_METHOD(fitToCoordinates:(nonnull NSNumber *)reactTag
                  coordinates:(nonnull NSArray<AIRMapCoordinate *> *)coordinates
                  edgePadding:(nonnull NSDictionary *)edgePadding
                  animated:(BOOL)animated)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;

      CLLocationCoordinate2D myLocation = coordinates.firstObject.coordinate;
      GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] initWithCoordinate:myLocation coordinate:myLocation];

      for (AIRMapCoordinate *coordinate in coordinates)
        bounds = [bounds includingCoordinate:coordinate.coordinate];

      // Set Map viewport
      CGFloat top = [RCTConvert CGFloat:edgePadding[@"top"]];
      CGFloat right = [RCTConvert CGFloat:edgePadding[@"right"]];
      CGFloat bottom = [RCTConvert CGFloat:edgePadding[@"bottom"]];
      CGFloat left = [RCTConvert CGFloat:edgePadding[@"left"]];

      [mapView animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withEdgeInsets:UIEdgeInsetsMake(top, left, bottom, right)]];
    }
  }];
}

RCT_EXPORT_METHOD(takeSnapshot:(nonnull NSNumber *)reactTag
                  withWidth:(nonnull NSNumber *)width
                  withHeight:(nonnull NSNumber *)height
                  withRegion:(MKCoordinateRegion)region
                  format:(nonnull NSString *)format
                  quality:(nonnull NSNumber *)quality
                  result:(nonnull NSString *)result
                  withCallback:(RCTResponseSenderBlock)callback)
{
  NSTimeInterval timeStamp = [[NSDate date] timeIntervalSince1970];
  NSString *pathComponent = [NSString stringWithFormat:@"Documents/snapshot-%.20lf.%@", timeStamp, format];
  NSString *filePath = [NSHomeDirectory() stringByAppendingPathComponent: pathComponent];

  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
        RCTLogError(@"Invalid view returned from registry, expecting AIRMap, got: %@", view);
    } else {
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;
      
      // TODO: currently we are ignoring width, height, region
        
      UIGraphicsBeginImageContextWithOptions(mapView.frame.size, YES, 0.0f);
      [mapView.layer renderInContext:UIGraphicsGetCurrentContext()];
      UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
        
      NSData *data;
      if ([format isEqualToString:@"png"]) {
          data = UIImagePNGRepresentation(image);
          
      }
      else if([format isEqualToString:@"jpg"]) {
            data = UIImageJPEGRepresentation(image, quality.floatValue);
      }
      
      if ([result isEqualToString:@"file"]) {
          [data writeToFile:filePath atomically:YES];
            callback(@[[NSNull null], filePath]);
        }
        else if ([result isEqualToString:@"base64"]) {
            callback(@[[NSNull null], [data base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithCarriageReturn]]);
        }
        else if ([result isEqualToString:@"legacy"]) {
            
            // In the initial (iOS only) implementation of takeSnapshot,
            // both the uri and the base64 encoded string were returned.
            // Returning both is rarely useful and in fact causes a
            // performance penalty when only the file URI is desired.
            // In that case the base64 encoded string was always marshalled
            // over the JS-bridge (which is quite slow).
            // A new more flexible API was created to cover this.
            // This code should be removed in a future release when the
            // old API is fully deprecated.
            [data writeToFile:filePath atomically:YES];
            NSDictionary *snapshotData = @{
                                           @"uri": filePath,
                                           @"data": [data base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithCarriageReturn]
                                           };
            callback(@[[NSNull null], snapshotData]);
        }
    
    }
    UIGraphicsEndImageContext();
  }];
}

RCT_EXPORT_METHOD(setMapBoundaries:(nonnull NSNumber *)reactTag
                  northEast:(CLLocationCoordinate2D)northEast
                  southWest:(CLLocationCoordinate2D)southWest)
{
  [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
    id view = viewRegistry[reactTag];
    if (![view isKindOfClass:[AIRGoogleMap class]]) {
      RCTLogError(@"Invalid view returned from registry, expecting AIRGoogleMap, got: %@", view);
    } else {
      AIRGoogleMap *mapView = (AIRGoogleMap *)view;

      GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] initWithCoordinate:northEast coordinate:southWest];

      mapView.cameraTargetBounds = bounds;
    }
  }];
}

+ (BOOL)requiresMainQueueSetup {
  return YES;
}

- (NSDictionary *)constantsToExport {
  return @{ @"legalNotice": [GMSServices openSourceLicenseInfo] };
}

- (void)mapViewDidStartTileRendering:(GMSMapView *)mapView {
  if (didCallOnMapReady) return;
  didCallOnMapReady = YES;
  
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  [googleMapView didPrepareMap];
}

- (BOOL)mapView:(GMSMapView *)mapView didTapMarker:(GMSMarker *)marker {
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  return [googleMapView didTapMarker:marker];
}

- (void)mapView:(GMSMapView *)mapView didTapOverlay:(GMSPolygon *)polygon {
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  [googleMapView didTapPolygon:polygon];
}

- (void)mapView:(GMSMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate {
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  [googleMapView didTapAtCoordinate:coordinate];
}

- (void)mapView:(GMSMapView *)mapView didLongPressAtCoordinate:(CLLocationCoordinate2D)coordinate {
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  [googleMapView didLongPressAtCoordinate:coordinate];
}

- (void)mapView:(GMSMapView *)mapView didChangeCameraPosition:(GMSCameraPosition *)position {
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  [googleMapView didChangeCameraPosition:position];
}

- (void)mapView:(GMSMapView *)mapView idleAtCameraPosition:(GMSCameraPosition *)position {
  AIRGoogleMap *googleMapView = (AIRGoogleMap *)mapView;
  [googleMapView idleAtCameraPosition:position];
}

- (UIView *)mapView:(GMSMapView *)mapView markerInfoWindow:(GMSMarker *)marker {
  AIRGMSMarker *aMarker = (AIRGMSMarker *)marker;
  return [aMarker.fakeMarker markerInfoWindow];}

- (UIView *)mapView:(GMSMapView *)mapView markerInfoContents:(GMSMarker *)marker {
  AIRGMSMarker *aMarker = (AIRGMSMarker *)marker;
  return [aMarker.fakeMarker markerInfoContents];
}

- (void)mapView:(GMSMapView *)mapView didTapInfoWindowOfMarker:(GMSMarker *)marker {
  AIRGMSMarker *aMarker = (AIRGMSMarker *)marker;
  [aMarker.fakeMarker didTapInfoWindowOfMarker:aMarker];
}

- (void)mapView:(GMSMapView *)mapView didBeginDraggingMarker:(GMSMarker *)marker {
  AIRGMSMarker *aMarker = (AIRGMSMarker *)marker;
  [aMarker.fakeMarker didBeginDraggingMarker:aMarker];
}

- (void)mapView:(GMSMapView *)mapView didEndDraggingMarker:(GMSMarker *)marker {
  AIRGMSMarker *aMarker = (AIRGMSMarker *)marker;
  [aMarker.fakeMarker didEndDraggingMarker:aMarker];
}

- (void)mapView:(GMSMapView *)mapView didDragMarker:(GMSMarker *)marker {
  AIRGMSMarker *aMarker = (AIRGMSMarker *)marker;
  [aMarker.fakeMarker didDragMarker:aMarker];
}
@end