V7USDAdataViewController.m

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//
//  V7USDAdataViewController.m
//  TodaysMenu
//
//  Created by Don Zeek on 6/17/18.
//  Copyright © 2018 net.dzeek.y2015.ios.portfolio. All rights reserved.
//

#import "V7USDAdataViewController.h"
#import "Z5DataController.h"
#import "V7UsdaFoodsTableView.h"
#import "USDAFoodItem+CoreDataProperties.h"
#import "V7USDAfoodViewController.h"
#import "V7foodTextFieldView.h"

@interface V7USDAdataViewController ()

@end

@implementation V7USDAdataViewController
{
    NSMutableArray<NSDictionary *> *usdaFoodItems;
    CGRect foodEntriesTableFrame;
    V7foodTextFieldView *headerView;
    V7UsdaFoodsTableView *foodEntriesTableView;
    NSString *searchFood;
}
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.title = @"USDA List";
    CGRect totalFrame = self.view.frame;

    // get and scale image for background
    UIImage *backgrdImage = [UIImage imageNamed:@"antiqueSunburstWood.png"];
    CGSize photoSize = [backgrdImage size];
    float resizeRatio = photoSize.height / totalFrame.size.height;
    UIImage *resizedImage = [UIImage imageWithCGImage:[backgrdImage CGImage]
                                                scale:backgrdImage.scale * resizeRatio
                                          orientation:(backgrdImage.imageOrientation) ];
    UIImageView *backgrd = [[UIImageView alloc] initWithImage:resizedImage];
    [self.view addSubview:backgrd];
    // end - get and scale image for background
    
    usdaFoodItems = [[NSMutableArray alloc] init];
    foodEntriesTableFrame = CGRectMake(totalFrame.size.width * 0.04,
                                       totalFrame.size.height * 0.12,
                                       totalFrame.size.width * 0.92,
                                       totalFrame.size.height * 0.86);
    headerView = [[V7foodTextFieldView alloc] initWithDelegate:self];
 
    foodEntriesTableView = [[V7UsdaFoodsTableView alloc] initWithFrame:foodEntriesTableFrame andHeader:headerView inContainer:self];
    [foodEntriesTableView setDataSource:self];
    [foodEntriesTableView setDelegate:self];

//     [_foodEntriesTableView setViewForHead:headerView];
    [foodEntriesTableView setBackgroundColor:[[Z5DataController sharedInstance] wheatColor]];
    [self.view addSubview:foodEntriesTableView];

}
 -(void) viewWillAppear:(BOOL)animated
{
    [headerView appear:self.view.frame];
}

-(void) hitScanDatabase
{
    Z5URLSessionController *sessionController = [[[Z5DataController sharedInstance] remoteDataController] sessionController];

    // Create the request.
    // NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"]];

//    NSString *searchStr = @"https://api.nal.usda.gov/ndb/search/?format=json&q=";
//    NSArray<NSString *> *listItems = [searchFood componentsSeparatedByString:@", "];
//    for (NSString *foodSpec in listItems) {
//        NSString *foodSpecQuery = [NSString stringWithFormat:@"%@%%20",foodSpec];
//        searchStr = [searchStr stringByAppendingString:foodSpecQuery];
//    }
//    searchStr = [searchStr stringByAppendingString:@"sort=n&max=25&offset=0&api_key=MHeHC2wqKJHmMxYqHzzLlMfnl4ZOLQLAZeKGEkdK"];

    searchFood = [searchFood stringByReplacingOccurrencesOfString:@", " withString:@"+"];
    NSString *searchStr = [NSString stringWithFormat:@"https://api.nal.usda.gov/ndb/search/?format=json&q=%@&sort=n&max=25&offset=0&api_key=MHeHC2wqKJHmMxYqHzzLlMfnl4ZOLQLAZeKGEkdK", searchFood];
    
    NSLog(@"V7USDAdataViewController.hitScanDatabase: searchStr: %@", searchStr);
    [headerView showUSDAFoodDatabaseResponse:USDAFoodDatabaseQueried];
    NSURL *searchURL = [NSURL URLWithString:searchStr];
    NSURLRequest *request = [NSURLRequest requestWithURL:searchURL];

    [sessionController fetchUSDAdata: request withCompletionBlock: ^(NSDictionary *informationDictionary, NSError *error) {
        if (!error) {
            // NSLog(@"V7USDAdataViewController.viewWillAppear: USDA-data %@", informationDictionary);
            [self->headerView showUSDAFoodDatabaseResponse:USDAFoodDatabaseRespOK];

            NSDictionary *foodList = [informationDictionary objectForKey:@"list"];
            assert(foodList);
            
            NSArray *foodItems = [foodList objectForKey:@"item"];
            assert(foodItems);
            
            NSInteger nFoodItems = [foodItems count];
            NSLog(@"V7USDAdataViewController.viewWillAppear: nFoodItems: %ld", (long)nFoodItems);

            [self->usdaFoodItems removeAllObjects];
            [self->usdaFoodItems addObjectsFromArray:foodItems];
            [self reframeTable];

        }
        else
        {
            [[NSOperationQueue mainQueue] addOperationWithBlock:^{
                // [NSApp presentError:error];
                [self->headerView showUSDAFoodDatabaseResponse:USDAFoodDatabaseRespErr];
               NSLog(@"USDADataView.viewWillAppear: Error: %@", error);
            }];
        }
    }];
}

- (void) reframeTable
{
    CGRect totalFrame = self.view.frame;
    float foodsTableHeight = 0.0;
    CGRect topNaviFrame = [[[self navigationController] navigationBar] frame];
    float availableWindowTop = topNaviFrame.origin.y + topNaviFrame.size.height;
    
    if (0 < [usdaFoodItems count]) {
        foodsTableHeight = [foodEntriesTableView getViewHeightReqmt]
        + 42.0 * [self assessFoodsToDisplay];
        float maxHgt = totalFrame.size.height * 0.80;
        if (maxHgt < foodsTableHeight) {
            foodsTableHeight = maxHgt;
        }
    }
    foodEntriesTableFrame = CGRectMake(totalFrame.size.width * 0.04,
                                        availableWindowTop + totalFrame.size.height * 0.04,
                                        totalFrame.size.width * 0.92,
                                        foodsTableHeight);
    [foodEntriesTableView setFrame:foodEntriesTableFrame];
    
    [self.view setNeedsDisplay];
    [foodEntriesTableView reloadData];
}
- (NSInteger) assessFoodsToDisplay
{
    NSInteger ret = [usdaFoodItems count];

    NSLog(@"USDAdataViewController.assessMessagesToDisplay: ret: %ld", (long)ret);
    return ret;
}

#pragma mark - V7foodTextFieldDelegate

- (void) clickScan
{
    UITextField *searchFoodtextF = [headerView foodTextField];
    searchFood = [searchFoodtextF text];
    if (nil!=searchFood) {
        [self hitScanDatabase];
    } else {
        NSLog(@"USDAdataViewController.clickScan: no search food");
    }
}

#pragma mark - UITableView Delegate Methods

- (nonnull UITableViewCell *)tableView:(nonnull UITableView *)tableView cellForRowAtIndexPath:(nonnull NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"usda-items"];
    // NSLog(@"GmailView.cellForRow: cell: %@", cell);
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"usda-items"];
        
        cell.contentView.autoresizingMask = UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth;
        [cell.layer setCornerRadius:7.0f];
        [cell.layer setMasksToBounds:YES];
        [cell.layer setBorderWidth:1.0f];
        
        CGRect contentRect = [cell.contentView frame];
        CGRect fetchPublishButton1Frame = CGRectMake(contentRect.size.width - 86.0f, 5.0, 34.0f, contentRect.size.height - 10);
        UIButton *pushMe = [[UIButton alloc] initWithFrame:fetchPublishButton1Frame];
        [pushMe setTitle:@"GO" forState:UIControlStateApplication];
        
        [cell.contentView addSubview:pushMe];
        [cell setHidden:NO];
    }
    
    NSInteger nFoodItems = [usdaFoodItems count];
    NSInteger iRow = [indexPath row];
    if (nFoodItems > iRow) {
        NSDictionary *foodItem = [usdaFoodItems objectAtIndex:iRow];
        NSString *caption = [foodItem objectForKey:@"name"];
        
        // cell.textLabel.text = caption;
        [Z5DataController labelizeCell:cell withText:caption inColor:[UIColor lightGrayColor] andDetail:@"detailed"];
        // [cell setBackgroundColor:[UIColor colorWithHue:0.18f saturation:1.0f brightness:0.6f alpha:0.4f]];
    }
    
    return cell;
}

- (NSInteger)tableView:(nonnull UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [usdaFoodItems count];
}
#pragma mark - Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    int row = (int)[indexPath row];
    
    NSDictionary *focusFoodItem = [usdaFoodItems objectAtIndex:row];
    
    NSString *focusFoodName = [focusFoodItem objectForKey:@"name"];
    NSLog(@"GmailViewController.didSelectRow: food: %@", focusFoodName);
    NSNumber *ndbNumber = [focusFoodItem objectForKey:@"ndbno"];
    
    V7USDAfoodViewController *vc2 = [[V7USDAfoodViewController alloc] init];
    [vc2 setFocusFoodItemNDB:ndbNumber];
    [vc2 setFocusFoodName:focusFoodName];
    [[self navigationController] pushViewController:vc2 animated:YES];
}
#pragma mark - V7UsdaFoods table delegate
- (NSMutableArray<NSDictionary *> *) retrieveFoodEntries
{
    return usdaFoodItems;
}
#pragma mark - NSURLConnection Delegate Methods

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
    // A response has been received, this is where we initialize the instance var you created
    // so that we can append data to it in the didReceiveData method
    // Furthermore, this method is called each time there is a redirect so reinitializing it
    // also serves to clear it
    _responseData = [[NSMutableData alloc] init];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    // Append the new data to the instance variable you declared
    [_responseData appendData:data];
}

- (NSCachedURLResponse *)connection:(NSURLConnection *)connection
                  willCacheResponse:(NSCachedURLResponse*)cachedResponse {
    // Return nil to indicate not necessary to store a cached response for this connection
    return nil;
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    // The request is complete and data has been received
    // You can parse the stuff in your instance variable now
    
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
    // The request has failed for some reason!
    // Check the error var
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

#pragma mark END

@end