BMDirectorySetUp.m

//
//  BMDirectorySetUp.m
//  Радио СВЕТ
//
//  Created by Bogdan Michalchuk on 10/27/14.
//  Copyright (c) 2014 Радио CBET. All rights reserved.
//

#import "BMDirectorySetUp.h"

@interface BMDirectorySetUp ()

@property (copy, nonatomic) NSString *nameOfFile;

@end

@implementation BMDirectorySetUp


+(void)createDirForImage:(NSString *)CalendarDir {
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *pathToCalendarDir = [[paths objectAtIndex:0] stringByAppendingPathComponent:CalendarDir];
    NSError *error;
    //Does directory already exist?
    if (![[NSFileManager defaultManager] fileExistsAtPath:pathToCalendarDir]) {
        if (![[NSFileManager defaultManager] createDirectoryAtPath:pathToCalendarDir
                                       withIntermediateDirectories:NO
                                                        attributes:nil
                                                             error:&error]) {
            NSLog(@"Create directory error: %@", error);
        }
    }

}

+ (void)fetchJSON {
    NSURL *JSONLocation = [NSURL URLWithString:@"http://radiolight.us/Calendar/dirList.php"];
    NSString *pictureLocation = [NSString stringWithFormat:@"http://radiolight.us/Calendar/"];

    [[[NSURLSession sharedSession] dataTaskWithURL:JSONLocation
                                 completionHandler:^(NSData *JSONdata, NSURLResponse *response, NSError *error) {
        // Process Data
                                     NSError *jsonParsingError = nil;
                                     NSArray *filesInDirectory = [NSJSONSerialization JSONObjectWithData:JSONdata
                                                                                               options:0
                                                                                                 error:&jsonParsingError];

                                     for (NSDictionary *dictionary in filesInDirectory) { NSString *fileName = dictionary[@"name"];
                                         if ([[fileName pathExtension] isEqualToString: @"png"]) {
                                             NSString *downloadedImageName = [pictureLocation stringByAppendingPathComponent:fileName];
                                             self.nameOfFile = downloadedImageName;
                                         }
                                         NSLog(@"Dictionary Deal finished, nameOfFile is now %d", self.nameOfFile);
                                     }
    }] resume];
}

+ (void)downloadCalendarImage {
    // For this snippet we are downloading the same in two tasks.
    NSString *imageUrl = @"http://www.radiolight.us/Calendar/ScreenPM.png";
    // You always start by creating an NSURLConfiguration.
    NSURLSessionConfiguration *sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
    // This creates a session using the current class as a delegate.
    NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfig
                                                          delegate:self
                                                     delegateQueue:nil];
    //Tasks are always created by sessions. This one is created with the block-based method. Remember you could still use the NSURLSessionDownloadDelegate to track download progress.
    NSURLSessionDownloadTask *getImageTask = [session downloadTaskWithURL:[NSURL URLWithString:imageUrl]
                                                        completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {
                                                            // Here you use the location variable provided in the completion handler to get a pointer to the image
                                                            //UIImage *downloadedImage = [UIImage imageWithData:[NSData dataWithContentsOfURL:location]];
                                                            // Finally you could, for example, update UIImageView’s image to show the new file.
                                                            dispatch_async(dispatch_get_main_queue(), ^{//scheduleImage.image = downloadedImage;
                                                            });

                                                            // This is me trying to add stuff... downloading the image to a file
                                                            NSString *imageName = [imageUrl lastPathComponent];

                                                            //  NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
                                                           // NSString *basePath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
                                                            NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
                                                            NSString *pathToCalendarDir = [[paths objectAtIndex:0] stringByAppendingString:@"/CalendarFolder/"];


                                                            UIImage *imageToSave = [UIImage imageWithData:[NSData dataWithContentsOfURL:location]];
                                                            NSData *binaryImageData = UIImagePNGRepresentation(imageToSave);

                                                            BOOL writeSuccess = [binaryImageData writeToFile:[pathToCalendarDir stringByAppendingPathComponent:imageName] atomically:YES];

                                                            if (writeSuccess)
                                                                NSLog(@"The image has been downloaded and saved.");
                                                            else
                                                                NSLog(@"The saving of the Calendar image was unsuccessful.");
                                                        }];
    // You always have to start up the task!
    [getImageTask resume];
}


// if you needed to track the download progress, for either task creation method, you would need to use the following:
-(void)URLSession:(NSURLSession *)session
     downloadTask:(NSURLSessionDownloadTask *)downloadTask
     didWriteData:(int64_t)bytesWritten
totalBytesWritten:(int64_t)totalBytesWritten
totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite
{
    NSLog(@"%f / %f", (double)totalBytesWritten,
          (double)totalBytesExpectedToWrite);
}


@end