MRC PR

Sprint 12/Module 4/MRC/MRC/AppDelegate.h

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+//
+//  AppDelegate.h
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : UIResponder <UIApplicationDelegate>
+
+@property (strong, nonatomic) UIWindow *window;
+
+
+@end
+

Sprint 12/Module 4/MRC/MRC/AppDelegate.m

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+//
+//  AppDelegate.m
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import "AppDelegate.h"
+
+@interface AppDelegate ()
+
+@end
+
+@implementation AppDelegate
+
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+    // Override point for customization after application launch.
+
+    return YES;
+}
+
+@end

Sprint 12/Module 4/MRC/MRC/BHContact+NSJSONSerializer.h

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+//
+//  BHContact+NSJSONSerializer.h
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import "BHContact.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface BHContact (NSJSONSerializer)
+
+-(NSDictionary *)makeDictionaryFromContact: (BHContact *)contact;
+
+@end
+
+NS_ASSUME_NONNULL_END

Sprint 12/Module 4/MRC/MRC/BHContact+NSJSONSerializer.m

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+//
+//  BHContact+NSJSONSerializer.m
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import "BHContact+NSJSONSerializer.h"
+
+@implementation BHContact (NSJSONSerializer)
+
+-(NSDictionary *)makeDictionaryFromContact: (BHContact *)contact{
+
+    NSDictionary *bottomLevelDictionary = [NSDictionary dictionaryWithObjectsAndKeys: contact.name, @"name", contact.email, @"email", contact.phoneNumber, @"phoneNumber", contact.uuid, @"uuid", nil];
+
+    return bottomLevelDictionary;
+
+}
+
+@end

Sprint 12/Module 4/MRC/MRC/BHContact.h

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+//
+//  BHContact.h
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface BHContact : NSObject
+
+- (instancetype)initWithName: (NSString *)name
+                       email:(NSString *)email
+                 phoneNumber:(NSString *)phoneNumber
+                        uuid:(NSString *)uuid;
+
+@property (retain, nonatomic) NSString *name;
+@property (retain, nonatomic) NSString *email;
+@property (retain, nonatomic) NSString *phoneNumber;
+@property (retain, nonatomic) NSString *uuid;
+
+@end
+
+NS_ASSUME_NONNULL_END

Sprint 12/Module 4/MRC/MRC/BHContact.m

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+//
+//  BHContact.m
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import "BHContact.h"
+
+@implementation BHContact
+
+
+- (instancetype)init{
+    self = [super init];
+    if (self) {
+        _uuid = [[NSUUID UUID] UUIDString];
+        _email = @"";
+        _name = @"";
+        _phoneNumber = @"";
+    }
+    return self;
+}
+
+- (instancetype)initWithName: (NSString *)name
+                   email:(NSString *)email
+                      phoneNumber:(NSString *)phoneNumber
+                        uuid:(NSString *)uuid{
+
+    self = [super init];
+    if (self){
+        _name = name;
+        _email = email;
+        _phoneNumber = phoneNumber;
+        _uuid = [[NSUUID UUID] UUIDString];
+    }
+    [_name retain];
+    [_email retain];
+    [_phoneNumber retain];
+    [_uuid retain];
+    return self;
+}
+
+- (void)dealloc {
+    [_name release];
+    [_email release];
+    [_phoneNumber release];
+    [_uuid release];
+    [super dealloc];
+}
+
+
+@end

Sprint 12/Module 4/MRC/MRC/BHContactsController.h

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+//
+//  BHContactsController.h
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "BHContact.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface BHContactsController : NSObject
+
++ (id)shared;
+
+@property (nonatomic, retain) NSMutableArray<BHContact *> *contacts;
+
+@property (nonatomic, retain) NSFileManager *fileManager;
+
+// create
+-(void)createContact: (BHContact *)contact;
+
+// update
+-(void)updateContact: (BHContact *)updatedContact;
+
+// delete
+-(void)deleteContact: (BHContact *)contactToDelete;
+
+@end
+
+NS_ASSUME_NONNULL_END

Sprint 12/Module 4/MRC/MRC/BHContactsController.m

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+//
+//  BHContactsController.m
+//  MRC
+//
+//  Created by Benjamin Hakes on 3/6/19.
+//  Copyright © 2019 Benjamin Hakes. All rights reserved.
+//
+
+#import "BHContactsController.h"
+#import "BHContact.h"
+
+@interface BHContactsController()
+
+@end
+
+static BHContactsController *shared = nil;
+
+@implementation BHContactsController
+
+@synthesize contacts;
+
+#pragma mark Singleton Methods
++ (id)shared {
+    @synchronized(self) {
+        if(shared == nil){
+            shared = [[super alloc] init];
+        }
+    }
+    return shared;
+}
+
+- (id)copyWithZone:(NSZone *)zone {
+    return self;
+}
+- (id)retain {
+    return self;
+}
+- (unsigned)retainCount {
+    return UINT_MAX; //denotes an object that cannot be released
+}
+- (oneway void)release {
+    // never release
+}
+- (id)autorelease {
+    return self;
+}
+
+- (void)dealloc {
+    // Should never be called, but just here for clarity really.
+    [contacts release];
+    [_fileManager release];
+    [super dealloc];
+}
+
+-(instancetype)init{
+    self = [super init];
+    if (self) {
+
+        // file manager setup
+        _fileManager = [[NSFileManager alloc] init];
+        [_fileManager autorelease];
+        _fileManager = [NSFileManager defaultManager];
+        NSURL *documentsDirectoryURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] firstObject];
+        [_fileManager contentsOfDirectoryAtURL:documentsDirectoryURL includingPropertiesForKeys:nil options:NSDirectoryEnumerationSkipsHiddenFiles error:nil];
+
+        if (![self getContactsFromDisk]) {
+            contacts = [[NSMutableArray<BHContact *> alloc] init];
+            [contacts retain];
+        } else {
+            contacts = [self getContactsFromDisk];
+            [contacts retain];
+        }
+
+    }
+    return self;
+}
+
+// create
+-(void)createContact: (BHContact *)contact{
+
+    [contacts addObject:contact];
+    [self saveContactsToDisk];
+}
+
+// update
+-(void)updateContact: (BHContact *)updatedContact{
+    NSUInteger j = [contacts count];
+
+    for (int q = 0; q < j; q++)
+    {
+        BHContact *thisObject = [contacts objectAtIndex:q];
+        BOOL shouldUpdateThisObject = ([updatedContact uuid] == [thisObject uuid]);
+        if (shouldUpdateThisObject){
+
+            [contacts removeObjectAtIndex:q];
+            [contacts insertObject:updatedContact atIndex:q];
+            break;
+        }
+    }
+
+    [self saveContactsToDisk];
+}
+
+// delete
+-(void)deleteContact: (BHContact *)songToDelete{
+    [contacts removeObject:songToDelete];
+    [self saveContactsToDisk];
+}
+
+// save to local storage
+-(void)saveContactsToDisk {
+
+    // get the document directory URL
+    NSURL *documentsDirectoryURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] firstObject];
+
+    // append our file name
+    NSURL *url = [documentsDirectoryURL URLByAppendingPathComponent:@"Contacts.data" isDirectory:NO];
+
+    NSUInteger j = [contacts count];
+
+    NSMutableArray *topLevelArray = [[NSMutableArray alloc] init];
+
+    for (int q = 0; q < j; q++)
+    {
+
+        BHContact *thisObject = [contacts objectAtIndex:q];
+
+        NSDictionary *newDictionary = [thisObject makeDictionaryFromContact:thisObject];
+
+        [topLevelArray addObject:newDictionary];
+    }
+
+    NSData *data = [NSJSONSerialization dataWithJSONObject:topLevelArray options:NSJSONWritingPrettyPrinted error:nil];
+    [topLevelArray release];
+
+    if (![data writeToURL:url atomically:YES]) {
+        NSLog(@"Failed to writeToURL:'%@'", url);
+    }
+
+
+}
+
+-(NSMutableArray*)getContactsFromDisk {
+
+    // get the document directory URL
+    NSURL *documentsDirectoryURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] firstObject];
+
+    // append our file name
+    NSURL *url = [documentsDirectoryURL URLByAppendingPathComponent:@"Contacts.data" isDirectory:NO];
+
+    NSData* data = [NSData dataWithContentsOfURL:url];
+    NSMutableArray *objects;
+
+    @try {
+        objects = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
+    } @catch (NSException* error) {
+        NSLog(@"Error Decoding Data: %@", error);
+        NSMutableArray *newArray = [[NSMutableArray<BHContact *> alloc] init];
+        [newArray autorelease];
+        return newArray;
+    }
+
+    NSUInteger j = [objects count];
+
+    NSMutableArray *newArray = [[NSMutableArray<BHContact *> alloc] init];
+    [newArray autorelease];
+
+
+    for (int q = 0; q < j; q++)
+    {
+
+        NSDictionary *thisObject = [objects objectAtIndex:q];
+
+        BHContact *newContact = [[BHContact alloc] initWithName:[thisObject objectForKey:@"name"] email:[thisObject objectForKey:@"email"] phoneNumber:[thisObject objectForKey:@"phoneNumber"] uuid:[thisObject objectForKey:@"uuid"]];
+        [newArray addObject:newContact];
+        [newContact release];
+//        [newContact dealloc];
+    }
+
+    return newArray;
+
+}
+
+
+@end