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FirestorePluginJSONHelper.m
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FirestorePluginJSONHelper.m
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//
// FirestorePluginJSONHelper.m
// leave your Egos at the door
//
// Created by Richard WIndley on 05/12/2017.
//
#import "FirestorePluginJSONHelper.h"
#import "FirestorePlugin.h"
@import Firebase;
@implementation FirestorePluginJSONHelper;
static NSString *datePrefix = @"__DATE:";
static NSString *timestampPrefix = @"__TIMESTAMP:";
static NSString *geopointPrefix = @"__GEOPOINT:";
static NSString *referencePrefix = @"__REFERENCE:";
static NSString *fieldValueDelete = @"__DELETE";
static NSString *fieldValueServerTimestamp = @"__SERVERTIMESTAMP";
static NSString *fieldValueIncrement = @"__INCREMENT";
static NSString *fieldValueArrayRemove = @"__ARRAYREMOVE";
static NSString *fieldValueArrayUnion = @"__ARRAYUNION";
+ (NSDictionary *)toJSON:(NSDictionary *)values {
NSMutableDictionary *result = [[NSMutableDictionary alloc]initWithCapacity:[values count]];
for (id key in values) {
id value = [values objectForKey:key];
if ([value isKindOfClass:[NSDate class]]) {
NSDate *date = (NSDate *)value;
NSMutableString *dateString = [[NSMutableString alloc] init];
[dateString appendString:datePrefix];
[dateString appendString:[NSString stringWithFormat:@"%.0f000",[date timeIntervalSince1970]]];
value = dateString;
} else if ([value isKindOfClass:[FIRTimestamp class]]) {
FIRTimestamp *timestamp = (FIRTimestamp *)value;
NSMutableString *timestampString = [[NSMutableString alloc] init];
[timestampString appendString:timestampPrefix];
[timestampString appendString:[NSString stringWithFormat:@"%lld_%d",[timestamp seconds], [timestamp nanoseconds]]];
value = timestampString;
} else if ([value isKindOfClass:[FIRGeoPoint class]]) {
FIRGeoPoint *point = (FIRGeoPoint *)value;
NSMutableString *geopointString = [[NSMutableString alloc] init];
[geopointString appendString:geopointPrefix];
[geopointString appendString:[NSString stringWithFormat:@"%f,%f", point.latitude, point.longitude]];
value = geopointString;
} else if ([value isKindOfClass:[FIRDocumentReference class]]) {
FIRDocumentReference *reference = (FIRDocumentReference *)value;
NSMutableString *referenceString = [[NSMutableString alloc] init];
[referenceString appendString:referencePrefix];
[referenceString appendString:[NSString stringWithFormat:@"%s,%s", [reference.path UTF8String], [reference.documentID UTF8String]]];
value = referenceString;
} else if ([value isKindOfClass:[NSDictionary class]]) {
value = [self toJSON:value];
}
[result setObject:value forKey:key];
}
return result;
}
+ (NSObject *)fromJSON:(NSObject *)value ForPlugin:(FirestorePlugin *)firestorePlugin {
if ([value isKindOfClass:[NSString class]]) {
NSString *stringValue = (NSString *)value;
NSUInteger datePrefixLength = (NSUInteger)datePrefix.length;
NSUInteger geopointPrefixLength = (NSUInteger)geopointPrefix.length;
NSUInteger timestampPrefixLength = (NSUInteger)timestampPrefix.length;
NSUInteger referencePrefixLength = (NSUInteger)referencePrefix.length;
if ([stringValue length] > datePrefixLength && [datePrefix isEqualToString:[stringValue substringToIndex:datePrefixLength]]) {
NSTimeInterval timestamp = [[stringValue substringFromIndex:datePrefixLength] doubleValue];
timestamp /= 1000;
NSDate *date = [[NSDate alloc] initWithTimeIntervalSince1970:timestamp];
value = date;
}
if ([stringValue length] > timestampPrefixLength && [timestampPrefix isEqualToString:[stringValue substringToIndex:timestampPrefixLength]]) {
NSArray *tmp = [[stringValue substringFromIndex:timestampPrefixLength] componentsSeparatedByString:@"_"];
FIRTimestamp *timestamp = [[FIRTimestamp alloc] initWithSeconds:[[tmp objectAtIndex:0] longLongValue] nanoseconds:[[tmp objectAtIndex:1] intValue]];
value = timestamp;
}
if ([stringValue length] > geopointPrefixLength && [geopointPrefix isEqualToString:[stringValue substringToIndex:geopointPrefixLength]]) {
NSArray *tmp = [[stringValue substringFromIndex:geopointPrefixLength] componentsSeparatedByString:@","];
FIRGeoPoint *geopoint = [[FIRGeoPoint alloc] initWithLatitude:[[tmp objectAtIndex:0] doubleValue] longitude:[[tmp objectAtIndex:1] doubleValue]];
value = geopoint;
}
if ([stringValue length] > referencePrefixLength && [referencePrefix isEqualToString:[stringValue substringToIndex:referencePrefixLength]]) {
NSArray *tmp = [[stringValue substringFromIndex:referencePrefixLength] componentsSeparatedByString:@","];
FIRFirestore *firestore = [firestorePlugin getFirestore];
FIRDocumentReference *reference = [[firestore collectionWithPath:@""] documentWithPath:[tmp objectAtIndex:0]]; //[[FIRDocumentReference alloc] initWithReference:[[tmp objectAtIndex:0] stringValue]];
value = reference;
}
if ([self isWrappedFieldValue:stringValue]) {
value = [self unwrapFieldValue:stringValue];
}
} else if ([value isKindOfClass:[NSDictionary class]]) {
value = [self toSettableDictionaryInternal:(NSDictionary *)value ForPlugin:firestorePlugin];
} else if ([value isKindOfClass:[NSArray class]]) {
value = [self toSettableArrayInternal:(NSArray *)value ForPlugin:firestorePlugin];
}
return value;
}
+ (NSObject *)toSettableDictionaryInternal:(NSDictionary *)values ForPlugin:(FirestorePlugin *)firestorePlugin {
NSMutableDictionary *result = [[NSMutableDictionary alloc]initWithCapacity:[values count]];
for (id key in values) {
id value = [values objectForKey:key];
value = [self fromJSON:value ForPlugin:firestorePlugin];
[result setObject:value forKey:key];
}
return result;
}
+ (NSObject *)toSettableArrayInternal:(NSArray *)values ForPlugin:(FirestorePlugin *)firestorePlugin {
NSMutableArray *result = [[NSMutableArray alloc]initWithCapacity:[values count]];
for (id key in values) {
[result addObject:key];
}
return result;
}
+ (void)setDatePrefix:(NSString *)newDatePrefix {
datePrefix = newDatePrefix;
}
+ (void)setTimestampPrefix:(NSString *)newTimestampPrefix {
timestampPrefix = newTimestampPrefix;
}
+ (void)setReferencePrefix:(NSString *)newReferencePrefix {
referencePrefix = newReferencePrefix;
}
+ (void)setGeopointPrefix:(NSString *)newGeopointPrefix {
geopointPrefix = newGeopointPrefix;
}
+ (void)setFieldValueDelete:(NSString *)newFieldValueDelete {
fieldValueDelete = newFieldValueDelete;
}
+ (void)setFieldValueServerTimestamp:(NSString *)newFieldValueServerTimestamp {
fieldValueServerTimestamp = newFieldValueServerTimestamp;
}
+ (void)setFieldValueIncrement:(NSString *)newFieldValueIncrement {
fieldValueIncrement = newFieldValueIncrement;
}
+ (void)setFieldValueArrayUnion:(NSString *)newFieldValueArrayUnion {
fieldValueArrayUnion = newFieldValueArrayUnion;
}
+ (void)setFieldValueArrayRemove:(NSString *)newFieldValueArrayRemove {
fieldValueArrayRemove = newFieldValueArrayRemove;
}
+(Boolean)isWrappedFieldValue:(NSString *)value {
if ([value isEqualToString:fieldValueDelete]) {
return true;
}
if ([value isEqualToString:fieldValueServerTimestamp]) {
return true;
}
if ([value length] >= fieldValueIncrement.length && [[value substringToIndex:fieldValueIncrement.length] isEqualToString:fieldValueIncrement]) {
return true;
}
if ([value length] >= fieldValueArrayUnion.length && [[value substringToIndex:fieldValueArrayUnion.length] isEqualToString:fieldValueArrayUnion]) {
return true;
}
if ([value length] >= fieldValueArrayRemove.length && [[value substringToIndex:fieldValueArrayRemove.length] isEqualToString:fieldValueArrayRemove]) {
return true;
}
return false;
}
+ (NSObject *)unwrapFieldValue:(NSString *)stringValue {
if ([fieldValueDelete isEqualToString:stringValue]) {
return FIRFieldValue.fieldValueForDelete;
}
if ([fieldValueServerTimestamp isEqualToString:stringValue]) {
return FIRFieldValue.fieldValueForServerTimestamp;
}
if ([[stringValue substringToIndex:fieldValueIncrement.length] isEqualToString:fieldValueIncrement]) {
return [FIRFieldValue fieldValueForIntegerIncrement:[[self unwrap:stringValue ForPrefix:fieldValueIncrement] longLongValue]];
}
if ([[stringValue substringToIndex:fieldValueArrayUnion.length] isEqualToString:fieldValueArrayUnion]) {
NSString *unwrapped =[self unwrap:stringValue ForPrefix:fieldValueArrayUnion];
return [FIRFieldValue fieldValueForArrayUnion:[self JSONArrayToArray:unwrapped]];
}
if ([[stringValue substringToIndex:fieldValueArrayRemove.length] isEqualToString:fieldValueArrayRemove]) {
NSString *unwrapped =[self unwrap:stringValue ForPrefix:fieldValueArrayRemove];
return [FIRFieldValue fieldValueForArrayRemove:[self JSONArrayToArray:unwrapped]];
}
return stringValue;
}
+ (NSString *)unwrap:(NSString *)stringValue ForPrefix:(NSString *)prefix {
return [stringValue substringFromIndex:prefix.length];
}
+ (NSArray *)JSONArrayToArray:(NSString *)array {
}
@end