//
//  EspagramTestViewController.m
//  Espagram
//
//  Created by Abel Fokkinga on 11/8/12.
//  Copyright (c) 2012 Abel Fokkinga. All rights reserved.
//

#import "EspagramTestViewController.h"
#import "NSMutableArray_Shuffling.h"

@interface EspagramTestViewController ()

@property (nonatomic, strong) NSMutableArray * testSet;
@property (nonatomic, strong) TestableVerb * currentVerb;
@property (nonatomic) int correctAnswersInCurrentSet;
@property (nonatomic) int wrongAnswersInCurrentSet;

@end

@implementation EspagramTestViewController

@synthesize lesson = _lesson;
@synthesize testedVerbLabel = _testedVerbLabel;
@synthesize verbMeaningLable = _testedVerbLable;
@synthesize verbPersonLabel = _verbPersonLabel;
@synthesize answer1Button = _answer1Button;
@synthesize answer2Button = _answer2Button;
@synthesize answer3Button = _answer3Button;
@synthesize answer4Button = _answer4Button;
@synthesize nextButton = _nextButton;
@synthesize testSet = _testSet;
@synthesize currentVerb = _currentVerb;
@synthesize correctAnswersInCurrentSet = _correctAnswersInCurrentSet;
@synthesize wrongAnswersInCurrentSet = _wrongAnswersInCurrentSet;


- (NSMutableArray *)testSet{
    // Check if there are any verbs in the set
    if ( _testSet.count == 0) {
        _testSet = [self.lesson testableVerbs];
        self.correctAnswersInCurrentSet = 0;
        self.wrongAnswersInCurrentSet = 0;
    }
    return _testSet;
};

- (IBAction)EditingDidEnd:(UITextField *)sender {
    [self resignFirstResponder];
}


- (IBAction)answered:(UIButton *)sender {
    
    NSString * correctAnswer = [self.lesson.getConjugationEngine conjugateVerb:self.currentVerb.verb.verb inPerson:self.currentVerb.person andTense:[self.lesson getTenseAsTense]];
    
    
    if ( [sender.titleLabel.text isEqualToString:correctAnswer]) {
        
        [self setUILabelTitle:self.verbPersonLabel withText:[[[[[[self.lesson getConjugationEngine] persons] objectForKey:self.currentVerb.person] stringByAppendingString:@" "] stringByAppendingString:correctAnswer] stringByAppendingString:@" \u2705"] inColour:[UIColor greenColor] andSize:16];
        
    } else {
        [self setUILabelTitle:self.verbPersonLabel withText:[[[[[[self.lesson getConjugationEngine] persons] objectForKey:self.currentVerb.person] stringByAppendingString:@" "] stringByAppendingString:sender.titleLabel.text] stringByAppendingString:@" \u274C"] inColour:[UIColor redColor] andSize:16];
        
        // Set current test verb to failed
        self.currentVerb.failed = true;
    }
}

- (id) popLastFromArray:(NSMutableArray *)a
{
    id lastObject = nil;
    if ( a && a.count > 0 ) {
        lastObject = [a lastObject];
        NSLog(@"Popping: %@", lastObject);
    [a removeLastObject];
    }
    return lastObject;
}

- (IBAction)nextButtonPressed:(id)sender {
    
    [self.testSet removeLastObject];
    
    [self nextVerb];
}

- (void)setAnswerButton:(UIButton *)button withAnswer:(NSString *)answer andCorrect:(NSString *)correct
{
    
    [self setUIButtonTitle:button withText:answer inColour:[UIColor blackColor] forState:UIControlStateNormal];
    
    if ( [answer isEqualToString:correct])
        [self setUIButtonTitle:button withText:answer inColour:[UIColor greenColor] forState:UIControlStateHighlighted];
    else 
        [self setUIButtonTitle:button withText:answer inColour:[UIColor greenColor] forState:UIControlStateHighlighted];
}

- (void) setUIButtonTitle:(UIButton *)button withText:(NSString *) titleString inColour:(UIColor *) colour forState:(UIControlState)controlState
{
    NSAttributedString *title;
    title = [[NSAttributedString alloc] initWithString:titleString attributes:@{ NSFontAttributeName :
             [UIFont fontWithName:@"Noteworthy-Bold" size:16],
             // NSUnderlineStyleAttributeName : @1,
            NSStrokeColorAttributeName : colour}];

    [button setAttributedTitle:title forState:controlState];
    
}

- (void) setUILabelTitle:(UILabel *)label withText:(NSString *) titleString inColour:(UIColor *) colour andSize:(int) fontSize;
{
    NSAttributedString *title;
    title = [[NSAttributedString alloc] initWithString:titleString attributes:@{ NSFontAttributeName :
             [UIFont fontWithName:@"Noteworthy-Bold" size:fontSize],
             // NSUnderlineStyleAttributeName : @1,
                           NSStrokeColorAttributeName : colour
             }];

    label.attributedText = title;
}


- (void) nextVerb {
    NSMutableArray * answers;
    
    if ( self.currentVerb && self.currentVerb.failed) {
        // Last test failed.. so we won't remove it
        // instead we shuffle the test set.
        [self.testSet shuffle];
        
        // increase wrongly answered counter
        self.wrongAnswersInCurrentSet += 1;
    } {
        // Last verb answered correctly
        [self.testSet lastObject];
        
        // increase wrongly answered counter
        self.correctAnswersInCurrentSet += 1;
    }
    
    self.currentVerb = self.testSet.lastObject;

    
    if ( self.currentVerb) {
        
        NSLog(@"Testing verb %@ in %@", self.currentVerb.verb.verb, self.currentVerb.person);
        
        NSString * correctAnswer = [self.lesson.getConjugationEngine conjugateVerb:self.currentVerb.verb.verb inPerson:self.currentVerb.person andTense:[self.lesson getTenseAsTense]];
        
        NSLog(@"Correct answer: %@", correctAnswer);
    
        // Set display label to verb to test
        [self setUILabelTitle:self.testedVerbLabel withText:self.currentVerb.verb.verb inColour:[UIColor blackColor] andSize:30];
        
        [self setUILabelTitle:self.verbMeaningLable withText:self.currentVerb.verb.meaning inColour:[UIColor blackColor] andSize:12];
        
        [self setUILabelTitle:self.verbPersonLabel withText:[[[self.lesson getConjugationEngine] persons] objectForKey:self.currentVerb.person] inColour:[UIColor blackColor] andSize:16];
    
    
        // Get the shuffles answers;
        answers = [self.lesson.getConjugationEngine getTestConjugationsForVerb:self.currentVerb.verb.verb inPerson:self.currentVerb.person andTense:[self.lesson getTenseAsTense]];
        

        [self setAnswerButton:self.answer1Button withAnswer:[self popLastFromArray:answers] andCorrect:correctAnswer];
                
        [self setAnswerButton:self.answer2Button withAnswer:[self popLastFromArray:answers] andCorrect:correctAnswer];
        
        [self setAnswerButton:self.answer3Button withAnswer:[self popLastFromArray:answers] andCorrect:correctAnswer];
                 
        [self setAnswerButton:self.answer4Button withAnswer:[self popLastFromArray:answers] andCorrect:correctAnswer];

    } else {
        NSLog(@"Que horror, no lesson!");
    }
        
}


- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    self.nextButton.titleLabel.text = NSLocalizedString(@"Next", @"Next button in the testing screen to continue to the next verb");
    
    [self.nextButton setTitle:NSLocalizedString(@"Next", @"Next button in the testing screen to continue to the next verb") forState:UIControlStateNormal];
    
    self.title = [self.lesson getTenseName];
    
    if ( [self.testSet count] > 0) {
        [self nextVerb];
    }
}



@end