random.m

//  Copyright (c) 2014 URX. All rights reserved.

#import "URXListenButtonSearchViewController.h"
#import <URXSearch/URXTerm.h>
#import <URXSearch/URXSearchResult.h>
#import <URXSearch/NSDictionary+JSONLD.h>
#import <URXSearch/URXActionFilter.h>
#import <URXSearch/URXAnd.h>

#define REUSE_IDENTIFIER @"URXSearchResultGenericTableViewCell"

@interface URXSearchResultGenericTableViewCell : UITableViewCell

@property (strong,nonatomic) URXSearchResult *searchResult;
@property (strong, nonatomic) IBOutlet UIImageView *resultImageView;
@property (strong, nonatomic) IBOutlet UILabel *resultName;
@property (strong, nonatomic) IBOutlet UILabel *appName;

- (IBAction)buttonPressed:(id)sender;

@end

@implementation URXSearchResultGenericTableViewCell

-(void)prepareForReuse {
    NSString* mainBundlePath = [[NSBundle mainBundle] resourcePath];
    NSString* frameworkBundlePath = [mainBundlePath stringByAppendingPathComponent:@"URXWidgetsResources.bundle"];

    self.resultImageView.image = [UIImage imageWithContentsOfFile:[[NSBundle bundleWithPath:frameworkBundlePath] pathForResource:@"search-result-main-image@2x" ofType:@"png"]];
    [self.resultImageView clipsToBounds];
}

- (IBAction)buttonPressed:(id)sender {
    [self.searchResult resolveAsynchronouslyWithAppStoreFallbackAndFailureHandler:^(URXAPIError *error) {
        NSLog(@"URX API ERROR: %@", error.errorMessage);
        [[[UIAlertView alloc] initWithTitle:@"There was a problem launching your content." message:@"The content could not be resolved, please try again." delegate:nil cancelButtonTitle:@"Back" otherButtonTitles:nil] show];
    }];
}

@end

@interface URXListenButtonSearchViewController ()


@property (strong, nonatomic) NSArray *searchResults;


-(void) backButtonPressed;
-(void) runQuery:(NSString *)keywords;

@end

@implementation URXListenButtonSearchViewController {
    __block BOOL _queryInProgress;
}

-(instancetype)init {
    if (self = [super init]) {
        _queryInProgress = NO;
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];

    
    // Change search bar color if set
    if (self.searchBarTextColor != nil) {
        for (UIView *subView in self.searchBar.subviews) {
            for (UIView *secondLevelSubview in subView.subviews) {
                if ([secondLevelSubview isKindOfClass:[UITextField class]]) {
                    UITextField *searchBarTextField = (UITextField *)secondLevelSubview;
                    searchBarTextField.textColor = self.searchBarTextColor;
                }
            }
        }
    }
    
    // Prevent tableView from appearing underneath navigationBar:
    self.navigationController.navigationBar.translucent = NO;
    if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
        self.edgesForExtendedLayout = UIRectEdgeNone;   // iOS 7 specific
//    self.navigationController.navigationBar.translatesAutoresizingMaskIntoConstraints = NO;
    
    
    // Add a backButton to the navigationController.navigationBar:
    self.navigationController.navigationBar.titleTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:self.modalBarTextColor, NSForegroundColorAttributeName, nil];
    self.navigationController.navigationBar.barTintColor = self.modalBarColor;
    if (self.backButtonColor) {
        self.navigationController.navigationBar.tintColor = self.backButtonColor;
    }
    
    UIBarButtonItemStyle barButtonItemStyle;
    if (self.backButtonBoldText) {
        barButtonItemStyle = UIBarButtonItemStyleDone;
    } else {
        barButtonItemStyle = UIBarButtonItemStylePlain;
    }
    self.navigationItem.title = self.modalBarTitle;
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:self.backButtonText style:barButtonItemStyle target:self action:@selector(backButtonPressed)];
    
    
    // Set the searchBar properties:
    self.searchBar.showsCancelButton = YES;
    [self.searchBar setText:self.lastQuery];
    
    
    // Set the UIActivityIndicatorView:
    self.activityIndicatorView.hidden = YES;
    self.activityIndicatorView.translatesAutoresizingMaskIntoConstraints = NO;
    
    // Set the resultsLabel:
    self.resultsLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.resultsLabel.text = @"Search for music to listen to!";
    
    // Run the query:
    if (self.lastQuery != nil) {
        [self runQuery:self.lastQuery];
    }
    
    
    // Register the tableViewCell nib:
    NSString* mainBundlePath = [[NSBundle mainBundle] resourcePath];
    NSString* frameworkBundlePath = [mainBundlePath stringByAppendingPathComponent:@"URXWidgetsResources.bundle"];
    
    [self.tableView registerNib:[UINib nibWithNibName:@"URXSearchResultGenericTableViewCell" bundle:[NSBundle bundleWithPath:frameworkBundlePath]] forCellReuseIdentifier:REUSE_IDENTIFIER];
}

-(void)runQuery:(NSString *)keywords {
    _queryInProgress = YES;
    self.resultsLabel.hidden = YES;
    self.activityIndicatorView.hidden = NO;
    [self.activityIndicatorView startAnimating];
    self.lastQuery = keywords;
    
    [[[[[URXTerm termWithKeywords:keywords] and:[URXActionFilter listenAction]] and: [[URXTerm termWithKeywords:@"fitocracy"] not]] withTagCategory:@"widget" AndValue:@"listen button"] searchAsynchronouslyWithSuccessHandler:^(URXSearchResponse *response) {
        [self.activityIndicatorView stopAnimating];
        self.activityIndicatorView.hidden = YES;
        _queryInProgress = NO;
        [self updateTableViewWithSearchResults:response.results];
        // Handle results
    } andFailureHandler:^(URXAPIError *error) {
        // There was an error
        NSLog(@"%@", error.errorMessage);
        
        [self.activityIndicatorView stopAnimating];
        self.activityIndicatorView.hidden = YES;
        _queryInProgress = NO;
        [self updateTableViewWithSearchResults:@[]];
        if (error.errorType == URXNoSearchResultsError) {
            self.resultsLabel.text = @"No results found.";
        } else {
            self.resultsLabel.text = @"There was an error, please try again.";
        }
        self.resultsLabel.hidden = NO;
    }];
}

-(void)updateTableViewWithSearchResults:(NSArray *)searchResults {
    [self.tableView beginUpdates];
    NSMutableArray *updateIndexPaths = [NSMutableArray array];
    NSMutableArray *insertIndexPaths = [NSMutableArray array];
    NSMutableArray *deleteIndexPaths = [NSMutableArray array];
    for (int i = 0; i < self.searchResults.count || i < searchResults.count; i++) {
        NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
        if (i < self.searchResults.count && i < searchResults.count) {
            [updateIndexPaths addObject:indexPath];
        } else if (i < self.searchResults.count) {
            [deleteIndexPaths addObject:indexPath];
        } else {
            [insertIndexPaths addObject:indexPath];
        }
    }
    self.searchResults = searchResults;
    [self.tableView reloadRowsAtIndexPaths:updateIndexPaths withRowAnimation:UITableViewRowAnimationAutomatic];
    [self.tableView insertRowsAtIndexPaths:insertIndexPaths withRowAnimation:UITableViewRowAnimationAutomatic];
    [self.tableView deleteRowsAtIndexPaths:deleteIndexPaths withRowAnimation:UITableViewRowAnimationAutomatic];
    [self.tableView endUpdates];
}

-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
    return !_queryInProgress;
}

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
    [searchBar resignFirstResponder];
}

-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
    if (_queryInProgress) {
        searchBar.text = self.lastQuery;
    }
}

-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
    if ([searchBar.text isEqualToString:@""]) {
        if (self.lastQuery != nil) {
            searchBar.text = self.lastQuery;
        }
    } else {
        [self runQuery:searchBar.text];
    }
    [searchBar resignFirstResponder];
}

-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar {
    if ([searchBar.text isEqualToString:@""] && self.lastQuery != nil) {
        searchBar.text = self.lastQuery;
    }
}

-(void) backButtonPressed {
    [self.callingViewController dismissViewControllerAnimated:YES completion:nil];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    
    URXSearchResultGenericTableViewCell *cell = (URXSearchResultGenericTableViewCell *)[self.tableView dequeueReusableCellWithIdentifier:REUSE_IDENTIFIER];

    URXSearchResult *searchResult = [self.searchResults objectAtIndex:indexPath.row];
    cell.searchResult = searchResult;
    cell.resultName.text = searchResult.name;
    
    // Increase line-height of cell.resultName to make it more aesthetically pleasing:
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.lineHeightMultiple = 1.3f;
    UIFont *font = [UIFont fontWithName:@"Helvetica Neue" size:13.f];
    cell.resultName.attributedText = [[NSAttributedString alloc] initWithString:
                                    searchResult.name attributes:
                                    @{NSParagraphStyleAttributeName : paragraphStyle, NSFontAttributeName : font}];
    
    NSString *appName = [[[searchResult.entityData getSingle:@"potentialAction"] getSingle:@"name"] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    NSString *actionDescription = [[[searchResult.entityData getSingle:@"potentialAction"] getSingle:@"description"] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    cell.appName.text = [NSString stringWithFormat:@"%@ in %@", actionDescription, appName];
    
    NSURLRequest *imageRequest = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:searchResult.imageUrl] cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:10000];
    [NSURLConnection sendAsynchronousRequest:imageRequest queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
        // If the data for this table hasn't changed
        if (data != nil && connectionError == nil && [[tableView indexPathsForVisibleRows] indexOfObject:indexPath] != NSNotFound) {
            cell.resultImageView.image = [UIImage imageWithData:data];
            [cell.resultImageView clipsToBounds];
        }
    }];
    
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 88;
}

- (NSArray *)searchResults {
    if (_searchResults == nil) {
        _searchResults = @[];
    }
    return _searchResults;
}

- (UIColor *)modalBarColor {
    if (_modalBarColor == nil) {
        _modalBarColor = [UIColor colorWithRed:0.974 green:0.974 blue:0.974 alpha:1];
    }
    return _modalBarColor;
}

- (NSString *)modalBarTitle {
    if (_modalBarTitle == nil) {
        _modalBarTitle = @"Listen to Music";
    }
    return _modalBarTitle;
}

- (UIColor *)modalBarTextColor {
    if (_modalBarTextColor == nil) {
        _modalBarTextColor = [UIColor blackColor];
    }
    return _modalBarTextColor;
}

- (NSString *)backButtonText {
    if (_backButtonText == nil) {
        _backButtonText = @"Back";
    }
    return _backButtonText;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [self.searchResults count];
}

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

@end