B2NutritionCalendarView.m

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//
//  NutritionCalendarView.m
//  TodaysMenu
//
//  Created by Don Zeek on 6/14/18.
//  Copyright © 2018 net.dzeek.y2015.ios.portfolio. All rights reserved.
//

#import "B2NutritionCalendarView.h"
#import "NSDate+CalendarView.h"
#import "NSString+CalendarView.h"
#import "Z5DataController.h"



@implementation B2NutritionCalendarView : CalendarView
NSCalendar *gregorianCalendar;
NSArray<NSArray<Meal *> *> *mMeals;
- (instancetype)init
{
    self = [super init];
    gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
   return self;
}

- (void) refreshCalendar
{
    mMeals = [self monthMeals];
}

- (NSArray<NSArray<Meal *> *> *) monthMeals
{
    Z5LocalDataController *localData = [[Z5DataController sharedInstance] localDataController];

    NSMutableArray *ret = [[NSMutableArray alloc] initWithCapacity:32];
    NSMutableArray *mealsInDay;
    for (int day=0; day<32; day++) {
        mealsInDay = [[NSMutableArray alloc] init];
        [ret addObject:mealsInDay];
    }
    
    gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    NSInteger currentYear = [self getDateYear:[self currentDate]];
    NSInteger currentMonth = [self getDateMonth:[self currentDate]];

    NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
    [dateComponents setYear:currentYear];
    [dateComponents setMonth:currentMonth];
    
    NSDate *calendarMonthDate = [gregorianCalendar dateFromComponents:dateComponents];
    NSArray<Meal *> *monthMeals = [localData findMealsThisMonthDate:calendarMonthDate];

    NSInteger mealDay;
    // set value of return array: value at index 0 unused
    for (Meal *meal in monthMeals) {
        if (nil == [meal consumeDate]) {
            NSLog(@"NutritionCalendarView.monthMeals: no consume date: %@", meal);
        } else {
            mealDay = [self getDateDay:[meal consumeDate]];
            NSLog(@"NutritionCalendarView.monthMeals: mealDay: %ld", (long)mealDay);
            if ((0<mealDay)&&(31>=mealDay)){
                [ret[mealDay] addObject:meal];
            } else {
                NSLog(@"NutritionCalendarView.monthMeals: ERROR?");
        }
        }
    }
    
    return ret;
}
- (NSInteger) getDateDay:(NSDate *)date
{
    assert(date);
    NSInteger mealDay = [gregorianCalendar component:(NSCalendarUnitDay) fromDate:date];
    return mealDay;
}
- (NSInteger) getDateMonth:(NSDate *)date
{
    assert(date);
    NSInteger currentMonth = [gregorianCalendar component:NSCalendarUnitMonth fromDate:date];
    return currentMonth;
}

- (NSInteger) getDateYear:(NSDate *)date
{
    assert(date);
//    NSInteger currentYear = [gregorianCalendar component:NSCalendarUnitYear fromDate:[self currentDate]];
    NSInteger currentYear = [gregorianCalendar component:NSCalendarUnitYear fromDate:date];
    return currentYear;
}
- (void)drawRect:(CGRect)rect
{
    [super drawRect:rect];
    
    //  NSLog(@"B2NutritionCalendarView.drawRect: self class: %@", NSStringFromClass([self class]));
    // draws entire rectangle
    // NSLog(@"B2NutritionCalendarView.drawRect: %3.2f/%3.2f @ %3.2f/%3.2f\n", rect.size.width, rect.size.height, rect.origin.x, rect.origin.y);
    CGContextRef context = UIGraphicsGetCurrentContext();
    NSDictionary *attributesBlack = [self generateAttributes:self.fontName
                                                withFontSize:self.dayFontSize
                                                   withColor:self.fontColor
               withAlignment:NSTextAlignmentFromCTTextAlignment(kCTTextAlignmentCenter)];

    NSMutableArray *rects = [super dayRects];
    

    if (rects) {
        for (CalendarViewRect *rect in rects) {
            NSDictionary *attrs = attributesBlack;
            CGRect rectText = rect.frame;
            //dateComponents.day = 4;
            // NSDate *calendarCellDate = [gregorianCalendar dateFromComponents:dateComponents];
            
            
            NSArray *dayMeals = [mMeals objectAtIndex:rect.value];
            NSInteger nMealsInDay = [dayMeals count];
              if (0 < nMealsInDay) {
                [self drawCircle:rect.frame toContext:&context withColor:[UIColor yellowColor]];
            } else {
                [self drawCircle:rect.frame toContext:&context withColor:[UIColor greenColor]];
            }
                
            // attrs = attributesBlack;
            [rect.str drawUsingRect:rectText withAttributes:attrs];
        }
    }
}

@end