path: root/Classes/TopicsViewController.m

//
//  TopicsViewController.m
//  acidcow
//
//  Created by Matthew Handler on 4/15/11.
//  Copyright 2011 Earl Industries. All rights reserved.
//

#import "TopicsViewController.h"
#import "XMLParser.h"
#import "Topic.h"
#import "TopicTableViewCell.h"
#import "AcidCowFeedburnerParser.h"
#import "PhotoViewController.h"
//#import "AsyncImageView.h"
#import "HJObjManager.h"
#import "HJManagedImageV.h"
#import "SourcesEditViewController.h"
#import "SectionDictionary.h"
#import "FMDatabase.h"
#import "FMResultSet.h"
#import "PicCastAppDelegate.h"
#import "CJSONDeserializer.h"
#import "Fetcher.h"

@implementation TopicsViewController

@synthesize topics, parser, tableView;

- (void)viewDidLoad {
    [super viewDidLoad];
	NSLog(@"viewDidLoad");
	self.tableView.rowHeight = 100;

	objMan = [[HJObjManager alloc] initWithLoadingBufferSize:6 memCacheSize:20];
	
	NSString* cacheDirectory = [NSHomeDirectory() stringByAppendingString:@"/Library/Caches/imgcache/icons/"] ;
	HJMOFileCache* fileCache = [[[HJMOFileCache alloc] initWithRootPath:cacheDirectory] autorelease];
	objMan.fileCache = fileCache;
	
	// Have the file cache trim itself down to a size & age limit, so it doesn't grow forever
	fileCache.fileCountLimit = 100;
	fileCache.fileAgeLimit = 60*60*24*7; //1 week
	[fileCache trimCacheUsingBackgroundThread];		
	
	tableDictionary = [[[SectionDictionary alloc] init] retain];

	db  = [[FMDatabase databaseWithPath:[PicCastAppDelegate getDatabasePath]] retain];
	[db setShouldCacheStatements:YES];
//	[db setTraceExecution:true];
//	[db setLogsErrors:true];	
	
	[self getTopicsFromDb];
	
	[self loadSubscribedTopics];	
}

- (void) getTopicsFromDb {
	// grab topics
	[db open];
	FMResultSet *fResult = [db executeQuery:@"SELECT * FROM picCasts ORDER BY releaseDate DESC"]; //order by date, limite _max
	
	// put into sections
	while([fResult next])
	{
		[self addTopicToSectionDictionary:[Topic initFromDatabaseRow:fResult]];
		
	}
	[fResult close];
	[db close];
	// put into data structure
}

- (void) addTopicToSectionDictionary:(Topic *)topic {	
	//NSLog(@"time since: %f", [topic.releaseDate timeIntervalSinceNow]);
	NSTimeInterval seconds = fabs([topic.releaseDate timeIntervalSinceNow]);
	if (seconds <= 86400.0f)
		[tableDictionary appendObject:topic forKey:@"Today"];
	else if (seconds <= 172800.0f)
		[tableDictionary appendObject:topic forKey:@"Yesterday"];
	else 
		[tableDictionary appendObject:topic forKey:[Topic dateToString:topic.releaseDate]];
}

- (void) sourcesEditViewControllerDidFinish:(SourcesEditViewController *)controller {
	
	[self dismissModalViewControllerAnimated:YES];
	[self loadSubscribedTopics];
	//[self _userIs:[controller getUserGenderString] heets:[controller getHeetGenderString]];
}

- (void) showSources:(id)sender {
    SourcesEditViewController *controller = [[SourcesEditViewController alloc] initWithNibName:@"SourcesEditViewController" bundle:nil];
    controller.delegate = self;
    
    controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    [self presentModalViewController:controller animated:YES];
    
    [controller release];
}

- (PhotoViewController *)photoViewController {
	if (photoViewController == nil) {
		photoViewController = [[[PhotoViewController alloc] init] autorelease];
	}
	return photoViewController;
}

#pragma mark -
#pragma mark custom sheeyit

- (void) addTopicsFromJson:(NSData *)data {
	
	NSError *theError = nil;
	id dictionary = [[CJSONDeserializer deserializer] deserialize:(NSData *)data error:&theError];
	NSArray *array = [dictionary objectForKey:@"list"];

	[db open];	
	for (NSDictionary *obj in array) {
		NSLog(@"foreign key: %d", [obj objectForKey:@"id"]);
		FMResultSet *result = [db executeQuery:@"SELECT id FROM picCasts WHERE foreignId = ?", [obj objectForKey:@"id"]];
		if (![result next]) {	
			NSLog(@"found new topic");
			Topic *topic = [Topic initWithJsonObject:obj];
			
			[db beginTransaction];
			[topic serializeToDatabase:db];
			[db commit];
			
			[self addTopicToSectionDictionary:topic];
		}
		[result close];
	}	
	[db close];
	
	[self.tableView reloadData];
}

// called after parsing is finished
- (void) updateTopicsFromWeb:(NSArray *)parsedTopics {
	// add topics to sql
	[db open];
	for (Topic *topic in parsedTopics) {
		// if topic is already in database
		//FMResultSet *rs = [db executeQuery:@"SELECT id FROM picCasts WHERE foreignId = ?", [NSNumber numberWithInt:10]];
		if (true) {
			//[rs close];
			[db beginTransaction];
			[topic serializeToDatabase:db];
			[db commit];
			
			// add topics to structure
			[self addTopicToSectionDictionary:topic];
		}
	}
	[db close];
	
	// tell table to animate things being added
	[self.tableView reloadData];		
}

- (void) loadSubscribedTopics {
	[db open];
	FMResultSet *result = [db executeQuery:@"SELECT foreignId FROM subscribedSources WHERE subscribed = ?", [NSNumber numberWithInt:1]];
	while ([result next]) {
		
		Fetcher *fetcher = [Fetcher initWithString:[NSString 
													stringWithFormat:@"http://piccast.memeschemes.com/json/sets_by_feed/%d/", 
													[result intForColumn:@"foreignId"]] 
									   andDelegate:self];
		
	}
}

#pragma mark -
#pragma mark fetcher delegate protocol

- (void) connection:(NSURLConnection *)connection failedWithError:(NSError *)error {
	[PicCastAppDelegate prompt:@"Error" withMessage:[error localizedDescription] andButtonTitle:@"Aww man..." withDelegate:self];
}

- (void) connection:(NSURLConnection *)connection finishedWithData:(NSData *)data {
	//NSLog(@"%@", [[CJSONDeserializer deserializer] deserialize:(NSData *)data error:nil]);
	[self addTopicsFromJson:data];
}


#pragma mark -
#pragma mark Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
	//NSLog(@"number of sections: %d", [tableDictionary count]);
    return [tableDictionary count];
}

#pragma mark -
#pragma mark Table view delegate

//- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//    // Navigation logic may go here. Create and push another view controller.
//    /*
//    <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
//    // ...
//    // Pass the selected object to the new view controller.
//    [self.navigationController pushViewController:detailViewController animated:YES];
//    [detailViewController release];
//    */
//}


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
	//NSLog(@"number of rows in section %d: %d", section, [[tableDictionary objectForIndex:section] count]);
    return [[tableDictionary objectForIndex:section] count];
}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
	//NSLog(@"row title: %@", [tableDictionary keyForIndex:section]);
	return [tableDictionary keyForIndex:section]; //how do you convert a key to index from mutabledictionary
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    
    [super setSelected:selected animated:animated];
    
    // Configure the view for the selected state.
}

- (void)viewWillAppear:(BOOL)animated {
    NSIndexPath *selectedRowIndexPath = [self.tableView indexPathForSelectedRow];
    if (selectedRowIndexPath != nil) {
        [self.tableView deselectRowAtIndexPath:selectedRowIndexPath animated:NO];
    }
}

//- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
//{
//    return 100;
//}

- (UITableViewCell *)tableView:(UITableView *)tv cellForRowAtIndexPath:(NSIndexPath *)indexPath {
	
    static NSString *kCellIdentifier = @"TopicTableViewCell";
    TopicTableViewCell *cell = (TopicTableViewCell *)[self.tableView dequeueReusableCellWithIdentifier:kCellIdentifier];
    
	HJManagedImageV* mi;
	HJManagedImageV* micon;
	
	if (cell == nil) {
        NSArray *tmpCell = [[NSBundle mainBundle] loadNibNamed:@"TopicTableViewCell" owner:self options:nil];
		
		for (id currentObj in tmpCell) {
			if ([currentObj isKindOfClass:[TopicTableViewCell class]]) {
				cell = (TopicTableViewCell *)currentObj;
				break;
			}
		}
		
		micon = [[[HJManagedImageV alloc] initWithFrame:CGRectMake(105,72,16,16)] autorelease];
		mi = [[[HJManagedImageV alloc] initWithFrame:CGRectMake(3,3,94,94)] autorelease];
		mi.tag = 998;
		mi.tag = 999;
		[cell addSubview:micon];
		[cell addSubview:mi];
		
    }
	else {
		//Get a reference to the managed image view that was already in the recycled cell, and clear it
		micon = (HJManagedImageV*)[cell viewWithTag:998];
		mi = (HJManagedImageV*)[cell viewWithTag:999];
		[micon clear];
		[mi clear];
    }
	
	Topic *topic = [[tableDictionary objectForIndex:[indexPath section]] objectAtIndex:[indexPath row]];
	//cell.useDarkBackground = (indexPath.row % 2 == 0);
    cell.title = topic.title;
	cell.picCount = [NSString stringWithFormat:@"%@", topic.picCount];
	
	micon.url = [NSURL URLWithString:@"http://www.acidcow.com/favicon.ico"];
	mi.url = [NSURL URLWithString:topic.iconUrl];
	mi.squareCropped = true;
	
	[objMan manage:mi];	
	[objMan manage:micon];
	
	
	return cell;
}

- (void)tableView:(UITableView *)table didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
	//    self.picDumpViewController.topic = [topics objectAtIndex:indexPath.row];
	self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"back"
																			 style:UIBarButtonItemStyleBordered
																			target:nil
																			action:nil];
	//	[self.navigationController pushViewController:picDumpViewController animated:YES];
	//	
	photoViewController = [[[PhotoViewController alloc] init] autorelease];
	photoViewController.topic = [[tableDictionary objectForIndex:indexPath.section] objectAtIndex:indexPath.row];
	[self.navigationController pushViewController:photoViewController animated:YES];	
	//[application setStatusBarStyle:UIStatusBarStyleBlackOpaque];
	
}

#pragma mark -
#pragma mark View lifecycle

/*
 - (void)viewDidLoad {
 [super viewDidLoad];
 
 // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
 // self.navigationItem.rightBarButtonItem = self.editButtonItem;
 }
 */

/*
 - (void)viewWillAppear:(BOOL)animated {
 [super viewWillAppear:animated];
 }
 */
/*
 - (void)viewDidAppear:(BOOL)animated {
 [super viewDidAppear:animated];
 }
 */
/*
 - (void)viewWillDisappear:(BOOL)animated {
 [super viewWillDisappear:animated];
 }
 */
/*
 - (void)viewDidDisappear:(BOOL)animated {
 [super viewDidDisappear:animated];
 }
 */
/*
 // Override to allow orientations other than the default portrait orientation.
 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
 // Return YES for supported orientations.
 return (interfaceOrientation == UIInterfaceOrientationPortrait);
 }
 */

#pragma mark <iTunesRSSParserDelegate> Implementation

- (void)startParsing {
	NSLog(@"startParsing");
    //self.navigationItem.rightBarButtonItem.enabled = NO;
    // Reset the title
    //self.title = NSLocalizedString(@"Getting Recent Picdumps...", @"Loading");
    // Allocate the array for song storage, or empty the results of previous parses
    if (topics == nil) {
        self.topics = [NSMutableArray array];
    } else {
        [topics removeAllObjects];
        [self.tableView reloadData];
    }
    // Create the parser, set its delegate, and start it.
    self.parser = [[[AcidCowFeedburnerParser alloc] init] autorelease];      
    parser.delegate = self;
    [parser start];
}

- (void)parserDidEndParsingData:(XMLParser *)parser {
    //self.title = [NSString stringWithFormat:NSLocalizedString(@"Recent Picdumps (%d)", @"Recent"), [topics count]];
    [self.tableView reloadData];
    //self.navigationItem.rightBarButtonItem.enabled = YES;
    self.parser = nil;
}

- (void)parser:(XMLParser *)parser didParseTopics:(NSArray *)parsedTopics {
	[self updateTopicsFromWeb:parsedTopics];
    
	// Three scroll view properties are checked to keep the user interface smooth during parse. When new objects are delivered 
	// by the parser, the table view is reloaded to display them. If the table is reloaded while 
	// the user is scrolling, this can result in eratic behavior. dragging, tracking, and decelerating can be checked 
	// for this purpose. When the parser finishes, reloadData will be called in parserDidEndParsingData:, guaranteeing 
	// that all data will ultimately be displayed even if reloadData is not called in this method because of user interaction.
    if (!self.tableView.dragging && !self.tableView.tracking && !self.tableView.decelerating) {
        //self.title = [NSString stringWithFormat:NSLocalizedString(@"Recent Picdumps (%d)", @"Recent"), [topics count]];
        [self.tableView reloadData];
    }
}

- (void)parser:(XMLParser *)parser didFailWithError:(NSError *)error {
    // handle errors as appropriate to your application...
}

#pragma mark -
#pragma mark Memory management

- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
    
    // Relinquish ownership any cached data, images, etc. that aren't in use.
}

- (void)viewDidUnload {
    // Relinquish ownership of anything that can be recreated in viewDidLoad or on demand.
    // For example: self.myOutlet = nil;
}

- (void)dealloc {
	[db release];
	[tableDictionary release];
	[objMan release];
    [topics release];
    //[detailController release];
    [parser release];
	[super dealloc];
}


@end