#include "TFDTSRootListController.h"

@implementation TFDTSRootListController

- (instancetype)init {

	self = [super init];

	if (self) {

	}

	return self;
}

- (NSArray *)specifiers {
	if (!_specifiers) {
		_specifiers = [self loadSpecifiersFromPlistName:@"Root" target:self];
	}

	return _specifiers;
}

- (id)readPreferenceValue:(PSSpecifier*)specifier {
	NSString *path = [NSString stringWithFormat:@"/User/Library/Preferences/%@.plist", specifier.properties[@"defaults"]];
	NSMutableDictionary *settings = [NSMutableDictionary dictionary];
	[settings addEntriesFromDictionary:[NSDictionary dictionaryWithContentsOfFile:path]];
	return (settings[specifier.properties[@"key"]]) ?: specifier.properties[@"default"];
}

- (void)setPreferenceValue:(id)value specifier:(PSSpecifier*)specifier {
	NSString *path = [NSString stringWithFormat:@"/User/Library/Preferences/%@.plist", specifier.properties[@"defaults"]];
	NSMutableDictionary *settings = [NSMutableDictionary dictionary];
	[settings addEntriesFromDictionary:[NSDictionary dictionaryWithContentsOfFile:path]];
	[settings setObject:value forKey:specifier.properties[@"key"]];
	[settings writeToFile:path atomically:YES];
	CFStringRef notificationName = (__bridge CFStringRef)specifier.properties[@"PostNotification"];

	if (notificationName) {
		CFNotificationCenterPostNotification(CFNotificationCenterGetDarwinNotifyCenter(), notificationName, NULL, NULL, YES);
	}
}

- (void)checkLatest:(PSSpecifier *)arg1 {

	NSIndexPath *indexPath = [self indexPathForSpecifier:arg1];
	UITableViewCell *cell = [self.table cellForRowAtIndexPath:indexPath];

	cell.userInteractionEnabled = NO;

	NSInteger activityIndicatorStyle = SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"13.0") ? UIActivityIndicatorViewStyleMedium : 2; // UIActivityIndicatorViewStyleGray == 2
	UIActivityIndicatorView *activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:activityIndicatorStyle];

	[cell setAccessoryView:activityView];
	[activityView startAnimating];

	// removes latest time rows if they already exist
	if (_latestPostSpecifier) {
		[self removeSpecifier:_latestPostSpecifier animated:YES];
		_latestPostSpecifier = nil;
	}
	if (_latestCommentSpecifier) {
		[self removeSpecifier:_latestCommentSpecifier animated:YES];
		_latestCommentSpecifier = nil;
	}

	// performs the requests for the most recent comment and post
	[self performPushshiftRequest:YES insertAfterSpecifier:arg1];
	[self performPushshiftRequest:NO insertAfterSpecifier:arg1];
}

- (void)performPushshiftRequest:(BOOL)isComment insertAfterSpecifier:(PSSpecifier *)arg2 {

	NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
	//NSOperationQueue *queue = [[NSOperationQueue alloc] init];

	if (isComment){
		[request setURL:[NSURL URLWithString:@"https://api.pushshift.io/reddit/search/comment/?fields=created_utc&size=1"]];
	} else {
		[request setURL:[NSURL URLWithString:@"https://api.pushshift.io/reddit/search/submission/?fields=created_utc&size=1"]];
	}

	NSMutableDictionary *prefs = [NSMutableDictionary dictionary];
	[prefs addEntriesFromDictionary:[NSDictionary dictionaryWithContentsOfFile:@"/User/Library/Preferences/com.lint.undelete.prefs.plist"]];

	NSInteger timeout = [prefs objectForKey:@"requestTimeoutValue"] ? [[prefs objectForKey:@"requestTimeoutValue"] doubleValue] : 10;

	[request setHTTPMethod:@"GET"];
	[request setTimeoutInterval:timeout];

	NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
	//[NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {

		NSString *resultText;

		if (data) {
			id jsonData = [[NSJSONSerialization JSONObjectWithData:data options:0 error:&error] objectForKey:@"data"];
			if (jsonData && [jsonData count] != 0) {

				NSString *epochStr = jsonData[0][@"created_utc"];
				NSDate *creationDate = [NSDate dateWithTimeIntervalSince1970:[epochStr intValue]];

				// months and years? not really needed
				unsigned int unitFlags =  NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;

				NSDateComponents *components = [[NSCalendar currentCalendar] components:unitFlags fromDate:creationDate toDate:[NSDate date] options:0];
				NSInteger days = [components day];
				NSInteger hours = [components hour];
				NSInteger minutes = [components minute];
				NSInteger seconds = [components second];

				NSMutableString *timeSinceString = [NSMutableString string];

				BOOL prevComponentUsed = NO;

				if (days > 0) {
					[timeSinceString appendFormat:@"%lid, ", (long)days];
					prevComponentUsed = YES;
				}
				if (hours > 0 || prevComponentUsed) {
					[timeSinceString appendFormat:@"%lih, ", (long)hours];
					prevComponentUsed = YES;
				}
				if (minutes > 0 || prevComponentUsed) {
					[timeSinceString appendFormat:@"%lim, ", (long)minutes];
					prevComponentUsed = YES;
				}
				if (seconds > 0 || prevComponentUsed) {
					[timeSinceString appendFormat:@"%lis ", (long)seconds];
				}

				[timeSinceString appendString:@"ago"];
				resultText = timeSinceString;

			} else {
				resultText = @"no data returned";
			}
		}

		if (error) {
			resultText = [NSString stringWithFormat:@"HTTP Status: %li, Error: %@",
			(long)((NSHTTPURLResponse *)response).statusCode, [error localizedDescription]];
		}

		NSString *labelText = [NSString stringWithFormat:@"Last %@: %@", isComment ? @"Comment" : @"Post", resultText];

		// specifier to create new table row
		PSSpecifier *customSpecifier = [PSSpecifier preferenceSpecifierNamed:labelText target:self set:NULL get:NULL detail:Nil cell:PSStaticTextCell edit:Nil];
		[customSpecifier setProperty:labelText forKey:@"label"];
		[customSpecifier setProperty: @"PSStaticTextCell" forKey:@"cell"];

		if (isComment) {
			_latestCommentSpecifier = customSpecifier;
		} else {
			_latestPostSpecifier = customSpecifier;
		}

		NSDictionary *dataDict = @{@"custom_specifier" : customSpecifier, @"after_specifier" : arg2};
		[self performSelectorOnMainThread:@selector(insertLatestTimeCell:) withObject:dataDict waitUntilDone:NO];
		[self performSelectorOnMainThread:@selector(possiblyBothChecksComplete:) withObject:arg2 waitUntilDone:NO];
	}];
	[dataTask resume];
}

- (void)insertLatestTimeCell:(NSDictionary *)data {
	if (data[@"custom_specifier"] && data[@"after_specifier"]) {
		[self insertSpecifier:data[@"custom_specifier"] afterSpecifier:data[@"after_specifier"] animated:YES];
	}
}

- (void)possiblyBothChecksComplete:(PSSpecifier *)arg1 {

	// only when both the comment and the post request have finished
	if (_latestPostSpecifier && _latestCommentSpecifier) {

		NSIndexPath *indexPath = [self indexPathForSpecifier:arg1];
		UITableViewCell *cell = [self.table cellForRowAtIndexPath:indexPath];

		if (cell) {
			UIActivityIndicatorView *activityView = (UIActivityIndicatorView *)[cell accessoryView];
			[activityView stopAnimating];
			[cell setAccessoryView:nil];

			cell.userInteractionEnabled = YES;
		}
	}
}

@end