//
//  MindboxJsDelivery.m
//  MindboxSdk
//
//  Created by Nikolay Seleznev on 15.10.2021.
//  Copyright © 2021 Facebook. All rights reserved.
//

#import "MindboxJsDelivery.h"

#import <UserNotifications/UserNotifications.h>

@implementation MindboxJsDelivery

RCT_EXPORT_MODULE();

static bool hasListeners = NO;
static NSDictionary *storedEventDetails;

- (NSArray<NSString *> *)supportedEvents {
  return @[@"pushNotificationClicked", @"Click", @"Dismiss"];
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)startObserving {
  hasListeners = YES;

  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(emitEventInternal:) name:@"event-emitted" object:nil];

  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(inappActionReceived:)name:@"MindboxInappAction" object:nil];

  if (storedEventDetails != NULL) {
    [[NSNotificationCenter defaultCenter] postNotificationName:@"event-emitted" object:self userInfo:storedEventDetails];
  }
}

- (void)stopObserving {
  hasListeners = NO;

  [[NSNotificationCenter defaultCenter] removeObserver:self];

  if (storedEventDetails != NULL) {
    storedEventDetails = NULL;
  }
}

- (void)emitEventInternal:(NSNotification *)notification {
  NSArray *eventDetails = [notification.userInfo valueForKey:@"detail"];
  NSString *eventName = [eventDetails objectAtIndex:0];
  NSString *actionIdentifier = [eventDetails objectAtIndex:1];
  NSDictionary *userInfo = [eventDetails objectAtIndex:2];
  NSString *clickUrl = @"";
  NSString *pushPayload = @"";

  if ([actionIdentifier isEqual:UNNotificationDefaultActionIdentifier]) {
    clickUrl = [userInfo objectForKey:@"clickUrl"];
    pushPayload = [userInfo objectForKey:@"payload"];

    if ([clickUrl length] == 0) {
      NSDictionary *aps = [userInfo objectForKey:@"aps"];
      clickUrl = [aps objectForKey:@"clickUrl"];
      pushPayload = [aps objectForKey:@"payload"];
    }
  } else {
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"uniqueKey == %@", actionIdentifier];
    NSArray *filteredArray = [[userInfo objectForKey:@"buttons"] filteredArrayUsingPredicate:predicate];

    if (filteredArray.count > 0) {
      clickUrl = [filteredArray.firstObject objectForKey:@"url"];
    }

    if ([clickUrl length] == 0) {
        NSDictionary *aps = [userInfo objectForKey:@"aps"];
        NSArray *apsButtons = [aps objectForKey:@"buttons"];
        filteredArray = [apsButtons filteredArrayUsingPredicate:predicate];
        if (filteredArray.count > 0) {
            clickUrl = [filteredArray.firstObject objectForKey:@"url"];
        }
    }

    pushPayload = [userInfo objectForKey:@"payload"];
    if ([pushPayload length] == 0) {
      NSDictionary *aps = [userInfo objectForKey:@"aps"];
      pushPayload = [aps objectForKey:@"payload"];
    }
  }

  NSDictionary *dict = @{
    @"pushUrl": clickUrl ? clickUrl : [NSNull null],
    @"pushPayload": pushPayload ? pushPayload : [NSNull null]
  };
  NSError *error;
  NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
  NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

  [self sendEventWithName:eventName body:jsonString];

  if (storedEventDetails != NULL) {
    storedEventDetails = NULL;
  }
}

+ (void)emitEvent:(UNNotificationResponse *)response {
  NSDictionary *userInfo = response.notification.request.content.userInfo;
  NSString *name = @"pushNotificationClicked";
  NSString *actionIdentifier = response.actionIdentifier;
  NSDictionary *eventDetails = @{@"detail":@[name,actionIdentifier,userInfo]};
  if (hasListeners) {
    [[NSNotificationCenter defaultCenter] postNotificationName:@"event-emitted" object:self userInfo:eventDetails];
  } else {
    storedEventDetails = eventDetails;
  }
}

+ (void)sendInappEvent:(NSString *)eventName eventId:(NSString *)eventId url:(NSString *)clickUrl payload:(NSString *)payload {
    if (hasListeners) {
        NSMutableDictionary *bodyDict = [[NSMutableDictionary alloc] init];
        bodyDict[@"id"] = eventId;

        if (clickUrl != nil) {
            bodyDict[@"redirectUrl"] = clickUrl;
        }

        if (payload != nil) {
            bodyDict[@"payload"] = payload;
        }

        NSDictionary *userInfo = @{
            @"eventName": eventName,
            @"body": bodyDict
        };

        [[NSNotificationCenter defaultCenter] postNotificationName:@"MindboxInappAction"
                                                            object:self
                                                          userInfo:userInfo];
    }
}

- (void)inappActionReceived:(NSNotification *)notification {
    NSString *eventName = notification.userInfo[@"eventName"];
    NSDictionary *body = notification.userInfo[@"body"];
    [self sendEventWithName:eventName body:body];
}

@end