MenuItem+CoreDataClass.m

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//
//  MenuItem+CoreDataClass.m
//  TodaysMenu
//
//  Created by Don Zeek on 6/7/18.
//  Copyright © 2018 net.dzeek.y2015.ios.portfolio. All rights reserved.
//
//

#import "MenuItem+CoreDataClass.h"

@implementation MenuItem

+ (MenuItem *) findMenuItemWithRandomkey:(NSString *)randomkey context:(NSManagedObjectContext *)moc
{
    NSArray *dupDoctorN = [self menuItemWithKey:randomkey context:moc];
    MenuItem *result = [dupDoctorN lastObject];
    if (result) {
        // NSLog(@"MenuItem+CoreDataClass.findOrCreate: Reuse MenuItem with randomkey: %@  name: %@", randomkey, [result name]);
    }
    return result;
}

+ (MenuItem *) findOrCreateMenuItemWithRandomkey:(NSString *)key context:(NSManagedObjectContext *)moc
{
    NSArray *dupDoctorN = [self menuItemWithKey:key context:moc];
    MenuItem *result = [dupDoctorN lastObject];
    if (result) {
        // NSLog(@"MenuItem+CoreDataClass.findOrCreate: Reuse MenuItem with randomkey: %@  name: %@", key, [result name]);
    } else {
        // NSLog(@"MenuItem+CoreDataClass.findOrCreate: Create new MenuItem with randomkey: %@", key);
        result = [NSEntityDescription insertNewObjectForEntityForName:@"MenuItem" inManagedObjectContext:moc];
        NSAssert(result, @"MenuItem insert failed");
        result.randomkey = key;
    }
    return result;
}

+ (MenuItem *) findMenuItemWithFileIdentification:(NSString *)googlefileid
                                          context:(NSManagedObjectContext *) moc
{
    NSArray *dupDoctorN = [self menuItemWithFileid:googlefileid context:moc];
    MenuItem *result = [dupDoctorN lastObject];
    // if (result) { NSLog(@"Reuse MenuItem with file-id: %@", googlefileid); }
    return result;
}

+ (MenuItem *) findOrCreateMenuItemWithFileIdentification:(NSString *)googlefileid context:(NSManagedObjectContext *)moc
{
    NSArray *dupDoctorN = [self menuItemWithFileid:googlefileid context:moc];
    MenuItem *result = [dupDoctorN lastObject];
    if (result) {
        // NSLog(@"MenuItem+CoreDataClass.findOrCreate: Reuse MenuItem with file-id: %@  name: %@", googlefileid, [result name]);
    } else {
        // NSLog(@"MenuItem+CoreDataClass.findOrCreate: Create new MenuItem with file-id: %@", googlefileid);
        result = [NSEntityDescription insertNewObjectForEntityForName:@"MenuItem" inManagedObjectContext:moc];
        NSAssert(result, @"MenuItem insert failed");
        result.remoteUniqueIID = googlefileid;
    }
    return result;
}

+ (NSArray *) menuItemWithUID:(NSString *)uidkey context:(NSManagedObjectContext *)moc
{
    if (nil == uidkey) {
        // NSLog(@"ERROR: nil randomkey at MenuItem.menuItemWithKey");
        return nil;
    }
    NSManagedObjectModel *mom = moc.persistentStoreCoordinator.managedObjectModel;
    
    NSFetchRequest *menuItemKeyFetchRequest =
    [mom fetchRequestFromTemplateWithName:@"MenuItemByUID" substitutionVariables:@{@"x" : uidkey} ];
    
    menuItemKeyFetchRequest.fetchBatchSize = 1;
    
    NSError *error = nil;
    NSArray *results = [moc executeFetchRequest:menuItemKeyFetchRequest error:&error];
    if (!results) {
        // NSLog(@"MenuItem+CoreDataClass.menuItemWithKey: error.localizedDescription: %@", [error localizedDescription]);
    }
    
    return results;
}

+ (NSArray<MenuItem *> *) findNextMenuItemForGallery: (NSNumber *) galleryNo afterPosition: (NSNumber *) positionInGallery context:(NSManagedObjectContext *)moc
{
    NSManagedObjectModel *mom = moc.persistentStoreCoordinator.managedObjectModel;
    
    NSFetchRequest *menuItemKeyFetchRequest =
    [mom fetchRequestFromTemplateWithName:@"MenuItemByGalleryAndPosition" substitutionVariables:@{@"x" : galleryNo, @"y" : positionInGallery} ];
    
    menuItemKeyFetchRequest.fetchBatchSize = 1;
    
    NSError *error = nil;
    NSArray *results = [moc executeFetchRequest:menuItemKeyFetchRequest error:&error];
    if (!results) {
        NSLog(@"MenuItem+CoreDataClass.findNextMenuItemForGallery: error.localizedDescription: %@", [error localizedDescription]);
    }
    
    return results;

}
+ (NSArray<MenuItem *> *) retrieveAllMenuItemsForGallery:(NSNumber *) galleryNo
                                                 context:(NSManagedObjectContext *)moc
{
    // NSLog(@"MenuItem+CoreDataClass.retrieveAllMenuItemsForGallery: %@", galleryNo);
    NSManagedObjectModel *mom = moc.persistentStoreCoordinator.managedObjectModel;
    
    NSFetchRequest *galleryFetchRequest =
    [mom fetchRequestFromTemplateWithName:@"AllMenuItemsInGallery" substitutionVariables:@{@"x" : galleryNo} ];
    NSSortDescriptor *modelDescriptor = [NSSortDescriptor
                                         sortDescriptorWithKey:@"galleryPositionNo"
                                         ascending:YES
                                         selector:@selector(compare:)];
    NSArray<NSSortDescriptor *> *descriptors = @[modelDescriptor];
    
    [galleryFetchRequest setSortDescriptors:descriptors];
    
    galleryFetchRequest.fetchBatchSize = 30;
    
    NSError *error = nil;
    NSArray *results = [moc executeFetchRequest:galleryFetchRequest error:&error];
    if (!results) {
        NSLog(@"MenuItem+CoreDataClass.retrieveAllMenuItemsForGallery: error.localizedDescription: %@", [error localizedDescription]);
    }
    
    return results;
    
}

+ (NSArray *) menuItemWithKey:(NSString *)randomkey context:(NSManagedObjectContext *)moc
{
    if (nil == randomkey) {
        // NSLog(@"ERROR: nil randomkey at MenuItem.menuItemWithKey");
        return nil;
    }
    NSManagedObjectModel *mom = moc.persistentStoreCoordinator.managedObjectModel;
    
    NSFetchRequest *menuItemKeyFetchRequest =
    [mom fetchRequestFromTemplateWithName:@"MenuItemByKey" substitutionVariables:@{@"x" : randomkey} ];
    
    menuItemKeyFetchRequest.fetchBatchSize = 1;
    
    NSError *error = nil;
    NSArray *results = [moc executeFetchRequest:menuItemKeyFetchRequest error:&error];
    if (!results) {
        NSLog(@"MenuItem+CoreDataClass.menuItemWithKey: error.localizedDescription: %@", [error localizedDescription]);
    }
    
    return results;
}

+ (NSArray *) menuItemWithFileid:(NSString *)googlefileid context:(NSManagedObjectContext *)moc
{
    if (nil == googlefileid) {
        NSLog(@"MenuItem+CoreDataClass.menuItemWithKey: ERROR: nil googlefileid at MenuItem.menuItemWithFileid");
        return nil;
    }
    NSManagedObjectModel *mom = moc.persistentStoreCoordinator.managedObjectModel;
    
    NSFetchRequest *menuItemKeyFetchRequest =
    [mom fetchRequestFromTemplateWithName:@"MenuItemByFileId" substitutionVariables:@{@"x" : googlefileid} ];
    
    menuItemKeyFetchRequest.fetchBatchSize = 1;
    
    NSError *error = nil;
    NSArray *results = [moc executeFetchRequest:menuItemKeyFetchRequest error:&error];
    if (!results) {
        NSLog(@"%@", error.localizedDescription);
    }
    
    return results;
}
@end