#import "RCTAppleHealthKit+Methods_Vitals.h"
#import "RCTAppleHealthKit+Queries.h"
#import "RCTAppleHealthKit+Utils.h"

@implementation RCTAppleHealthKit (Methods_Vitals)


- (void)vitals_getHeartRateSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
{
    HKQuantityType *heartRateType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];
    
    HKUnit *count = [HKUnit countUnit];
    HKUnit *minute = [HKUnit minuteUnit];

    HKUnit *unit = [RCTAppleHealthKit hkUnitFromOptions:input key:@"unit" withDefault:[count unitDividedByUnit:minute]];
    NSUInteger limit = [RCTAppleHealthKit uintFromOptions:input key:@"limit" withDefault:HKObjectQueryNoLimit];
    BOOL ascending = [RCTAppleHealthKit boolFromOptions:input key:@"ascending" withDefault:false];
    NSDate *startDate = [RCTAppleHealthKit dateFromOptions:input key:@"startDate" withDefault:nil];
    NSDate *endDate = [RCTAppleHealthKit dateFromOptions:input key:@"endDate" withDefault:[NSDate date]];
    if(startDate == nil){
        callback(@[RCTMakeError(@"startDate is required in options", nil, nil)]);
        return;
    }
    NSPredicate * predicate = [RCTAppleHealthKit predicateForSamplesBetweenDates:startDate endDate:endDate];

    [self fetchQuantitySamplesOfType:heartRateType
                                unit:unit
                           predicate:predicate
                           ascending:ascending
                               limit:limit
                          completion:^(NSArray *results, NSError *error) {
        if(results){
            callback(@[[NSNull null], results]);
            return;
        } else {
            NSLog(@"error getting heart rate samples: %@", error);
            callback(@[RCTMakeError(@"error getting heart rate samples", nil, nil)]);
            return;
        }
    }];
}

- (void)vitals_getBodyTemperatureSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
{
    HKQuantityType *bodyTemperatureType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyTemperature];

    HKUnit *unit = [RCTAppleHealthKit hkUnitFromOptions:input key:@"unit" withDefault:[HKUnit degreeCelsiusUnit]];
    NSUInteger limit = [RCTAppleHealthKit uintFromOptions:input key:@"limit" withDefault:HKObjectQueryNoLimit];
    BOOL ascending = [RCTAppleHealthKit boolFromOptions:input key:@"ascending" withDefault:false];
    NSDate *startDate = [RCTAppleHealthKit dateFromOptions:input key:@"startDate" withDefault:nil];
    NSDate *endDate = [RCTAppleHealthKit dateFromOptions:input key:@"endDate" withDefault:[NSDate date]];
    if(startDate == nil){
        callback(@[RCTMakeError(@"startDate is required in options", nil, nil)]);
        return;
    }
    NSPredicate * predicate = [RCTAppleHealthKit predicateForSamplesBetweenDates:startDate endDate:endDate];

    [self fetchQuantitySamplesOfType:bodyTemperatureType
                                unit:unit
                           predicate:predicate
                           ascending:ascending
                               limit:limit
                          completion:^(NSArray *results, NSError *error) {
        if(results){
            callback(@[[NSNull null], results]);
            return;
        } else {
            NSLog(@"error getting body temperature samples: %@", error);
            callback(@[RCTMakeError(@"error getting body temperature samples", nil, nil)]);
            return;
        }
    }];
}


- (void)vitals_getBloodPressureSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
{
    HKCorrelationType *bloodPressureCorrelationType = [HKCorrelationType correlationTypeForIdentifier:HKCorrelationTypeIdentifierBloodPressure];
    HKQuantityType *systolicType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodPressureSystolic];
    HKQuantityType *diastolicType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodPressureDiastolic];


    HKUnit *unit = [RCTAppleHealthKit hkUnitFromOptions:input key:@"unit" withDefault:[HKUnit millimeterOfMercuryUnit]];
    NSUInteger limit = [RCTAppleHealthKit uintFromOptions:input key:@"limit" withDefault:HKObjectQueryNoLimit];
    BOOL ascending = [RCTAppleHealthKit boolFromOptions:input key:@"ascending" withDefault:false];
    NSDate *startDate = [RCTAppleHealthKit dateFromOptions:input key:@"startDate" withDefault:nil];
    NSDate *endDate = [RCTAppleHealthKit dateFromOptions:input key:@"endDate" withDefault:[NSDate date]];
    if(startDate == nil){
        callback(@[RCTMakeError(@"startDate is required in options", nil, nil)]);
        return;
    }
    NSPredicate * predicate = [RCTAppleHealthKit predicateForSamplesBetweenDates:startDate endDate:endDate];

    [self fetchCorrelationSamplesOfType:bloodPressureCorrelationType
                                   unit:unit
                           predicate:predicate
                           ascending:ascending
                               limit:limit
                          completion:^(NSArray *results, NSError *error) {
        if(results){
            NSMutableArray *data = [NSMutableArray arrayWithCapacity:1];

            for (NSDictionary *sample in results) {
                HKCorrelation *bloodPressureValues = [sample valueForKey:@"correlation"];

                HKQuantitySample *bloodPressureSystolicValue = [bloodPressureValues objectsForType:systolicType].anyObject;
                HKQuantitySample *bloodPressureDiastolicValue = [bloodPressureValues objectsForType:diastolicType].anyObject;

                NSDictionary *elem = @{
                                       @"bloodPressureSystolicValue" : @([bloodPressureSystolicValue.quantity doubleValueForUnit:unit]),
                                       @"bloodPressureDiastolicValue" : @([bloodPressureDiastolicValue.quantity doubleValueForUnit:unit]),
                                       @"startDate" : [sample valueForKey:@"startDate"],
                                       @"endDate" : [sample valueForKey:@"endDate"],
                                      };

                [data addObject:elem];
            }


            callback(@[[NSNull null], data]);
            return;
        } else {
            NSLog(@"error getting blood pressure samples: %@", error);
            callback(@[RCTMakeError(@"error getting blood pressure samples", nil, nil)]);
            return;
        }
    }];
}


@end