//
//  SDVReaderMainToolbar.m
//
//  implements Sitewaerts Document Viewer runtime options for VFR Reader
//
//  Created by Philipp Bohnenstengel on 03.11.14.
//
//

#import "ReaderConstants.h"
#import "ReaderDocument.h"

#import "SDVReaderMainToolbar.h"
#import "ReaderMainToolbar+SDVReaderMainToolbarPassThrough.h"

#import <MessageUI/MessageUI.h>

@implementation SDVReaderMainToolbar

#pragma mark - Constants

#define BUTTON_X 8.0f
#define BUTTON_Y 8.0f

#define BUTTON_SPACE 8.0f
#define BUTTON_HEIGHT 30.0f

#define BUTTON_FONT_SIZE 15.0f
#define TEXT_BUTTON_PADDING 24.0f

#define SHOW_CONTROL_WIDTH 117.0f
#define ICON_BUTTON_WIDTH 40.0f

#define TITLE_FONT_SIZE 19.0f
#define TITLE_HEIGHT 28.0f

//  this is just testcode to provide default options for the original method call
- (instancetype)initWithFrame:(CGRect)frame document:(ReaderDocument *)document
{
    // TODO: set default options
    NSMutableDictionary *bookmarkOptions = [ [NSMutableDictionary alloc]
                                            initWithObjectsAndKeys :
                                            [NSNumber numberWithBool:YES], @"enabled",
                                            nil
                                            ];
    NSMutableDictionary *documentViewOptions = [ [NSMutableDictionary alloc]
                                                initWithObjectsAndKeys :
                                                @"Test", @"closeLabel",
                                                nil
                                                ];
    NSMutableDictionary *emailOptions = [ [NSMutableDictionary alloc]
                                         initWithObjectsAndKeys :
                                         [NSNumber numberWithBool:YES], @"enabled",
                                         nil
                                         ];
    NSMutableDictionary *navigationViewOptions = [ [NSMutableDictionary alloc]
                                                  initWithObjectsAndKeys :
                                                  @"Back", @"closeLabel",
                                                  nil
                                                  ];
    NSMutableDictionary *openWithOptions = [ [NSMutableDictionary alloc]
                                            initWithObjectsAndKeys :
                                            [NSNumber numberWithBool:NO], @"enabled",
                                            nil
                                            ];
    NSMutableDictionary *printOptions = [ [NSMutableDictionary alloc]
                                         initWithObjectsAndKeys :
                                         [NSNumber numberWithBool:YES], @"enabled",
                                         nil
                                         ];
    NSMutableDictionary *searchOptions = [ [NSMutableDictionary alloc]
                                          initWithObjectsAndKeys :
                                          [NSNumber numberWithBool:NO], @"enabled",
                                          nil
                                          ];
    NSMutableDictionary *viewerDefaultOptions = [ [NSMutableDictionary alloc]
                                                 initWithObjectsAndKeys :
                                                 bookmarkOptions, @"bookmarks",
                                                 documentViewOptions, @"documentView",
                                                 emailOptions, @"email",
                                                 navigationViewOptions, @"navigationView",
                                                 openWithOptions, @"openWith",
                                                 printOptions, @"print",
                                                 searchOptions, @"search",
                                                 @"untitled", @"title",
                                                 nil
                                                 ];
    return [self initWithFrame:frame document:document options: viewerDefaultOptions ];
}

// new init method with options, modified version of initWithFrame from ReaderMainToolbar
- (instancetype)initWithFrame:(CGRect)frame document:(ReaderDocument *)document options:(NSDictionary *)options
{
    NSLog(@"[pdfviewer] toolbar-options: %@", options);
    
    assert(document != nil); // Must have a valid ReaderDocument
    
    if ((self = [super initWithFrame:frame document: document]))
    {
        CGFloat viewWidth = self.bounds.size.width; // Toolbar view width
        
#if (READER_FLAT_UI == TRUE) // Option
        UIImage *buttonH = nil; UIImage *buttonN = nil;
#else
        UIImage *buttonH = [[UIImage imageNamed:@"Reader-Button-H"] stretchableImageWithLeftCapWidth:5 topCapHeight:0];
        UIImage *buttonN = [[UIImage imageNamed:@"Reader-Button-N"] stretchableImageWithLeftCapWidth:5 topCapHeight:0];
#endif // end of READER_FLAT_UI Option
        
        BOOL largeDevice = ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad);
        
        const CGFloat buttonSpacing = BUTTON_SPACE; const CGFloat iconButtonWidth = ICON_BUTTON_WIDTH;
        
        CGFloat titleX = BUTTON_X; CGFloat titleWidth = (viewWidth - (titleX + titleX));
        
        CGFloat leftButtonX = BUTTON_X; // Left-side button start X position
        
#if (READER_STANDALONE == FALSE) // Option
        
        UIFont *doneButtonFont = [UIFont systemFontOfSize:BUTTON_FONT_SIZE];
        //get doneButtonText from options
        NSString *toolbarOptionCloseLabel = [[options objectForKey: @"documentView"] objectForKey: @"closeLabel"];
        NSLog(@"[pdfviewer] toolbar-options close label: %@", toolbarOptionCloseLabel);
        NSString *doneButtonText = toolbarOptionCloseLabel?:NSLocalizedString(@"Done", @"button");
        CGSize doneButtonSize = [doneButtonText sizeWithFont:doneButtonFont];
        CGFloat doneButtonWidth = (doneButtonSize.width + TEXT_BUTTON_PADDING);
        
        UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
        doneButton.frame = CGRectMake(leftButtonX, BUTTON_Y, doneButtonWidth, BUTTON_HEIGHT);
        [doneButton setTitleColor:[UIColor colorWithWhite:0.0f alpha:1.0f] forState:UIControlStateNormal];
        [doneButton setTitleColor:[UIColor colorWithWhite:1.0f alpha:1.0f] forState:UIControlStateHighlighted];
        [doneButton setTitle:doneButtonText forState:UIControlStateNormal]; doneButton.titleLabel.font = doneButtonFont;
        [doneButton addTarget:self action:@selector(doneButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
        [doneButton setBackgroundImage:buttonH forState:UIControlStateHighlighted];
        [doneButton setBackgroundImage:buttonN forState:UIControlStateNormal];
        doneButton.autoresizingMask = UIViewAutoresizingNone;
        //doneButton.backgroundColor = [UIColor grayColor];
        doneButton.exclusiveTouch = YES;
        
        [self addSubview:doneButton]; leftButtonX += (doneButtonWidth + buttonSpacing);
        
        titleX += (doneButtonWidth + buttonSpacing); titleWidth -= (doneButtonWidth + buttonSpacing);
        
#endif // end of READER_STANDALONE Option
        
#if (READER_ENABLE_THUMBS == TRUE) // Option
        //don't show navigation view for single page documents
        if ([document.pageCount intValue] > 1)
        {
            UIButton *thumbsButton = [UIButton buttonWithType:UIButtonTypeCustom];
            thumbsButton.frame = CGRectMake(leftButtonX, BUTTON_Y, iconButtonWidth, BUTTON_HEIGHT);
            [thumbsButton setImage:[UIImage imageNamed:@"SDVReader-Outline"] forState:UIControlStateNormal];
            [thumbsButton addTarget:self action:@selector(thumbsButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
            [thumbsButton setBackgroundImage:buttonH forState:UIControlStateHighlighted];
            [thumbsButton setBackgroundImage:buttonN forState:UIControlStateNormal];
            thumbsButton.autoresizingMask = UIViewAutoresizingNone;
            //thumbsButton.backgroundColor = [UIColor grayColor];
            thumbsButton.exclusiveTouch = YES;
            
            [self addSubview:thumbsButton]; //leftButtonX += (iconButtonWidth + buttonSpacing);
            
            titleX += (iconButtonWidth + buttonSpacing); titleWidth -= (iconButtonWidth + buttonSpacing);
        }
#endif // end of READER_ENABLE_THUMBS Option
        
        CGFloat rightButtonX = viewWidth; // Right-side buttons start X position
       
#if (READER_BOOKMARKS == TRUE) // Option
        //get bookmarks enabled options
        BOOL toolbarOptionBookmarks = [[[options objectForKey: @"bookmarks"] objectForKey: @"enabled"] boolValue];
        NSLog(@"[pdfviewer] toolbar-options bookmarks: %d", toolbarOptionBookmarks);
        if (toolbarOptionBookmarks) {
            
            rightButtonX -= (iconButtonWidth + buttonSpacing); // Position
            
            UIButton *flagButton = [UIButton buttonWithType:UIButtonTypeCustom];
            flagButton.frame = CGRectMake(rightButtonX, BUTTON_Y, iconButtonWidth, BUTTON_HEIGHT);
            //[flagButton setImage:[UIImage imageNamed:@"Reader-Mark-N"] forState:UIControlStateNormal];
            [flagButton addTarget:self action:@selector(markButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
            [flagButton setBackgroundImage:buttonH forState:UIControlStateHighlighted];
            [flagButton setBackgroundImage:buttonN forState:UIControlStateNormal];
            flagButton.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
            //flagButton.backgroundColor = [UIColor grayColor];
            flagButton.exclusiveTouch = YES;
            
            [self addSubview:flagButton]; titleWidth -= (iconButtonWidth + buttonSpacing);
            
            markButton = flagButton; markButton.enabled = NO; markButton.tag = NSIntegerMin;
            
            markImageN = [UIImage imageNamed:@"Reader-Mark-N"]; // N image
            markImageY = [UIImage imageNamed:@"Reader-Mark-Y"]; // Y image
            
        }
#endif // end of READER_BOOKMARKS Option
        
        //get email enabled options
        BOOL toolbarOptionEmail = [[[options objectForKey: @"email"] objectForKey: @"enabled"] boolValue];
        NSLog(@"[pdfviewer] toolbar-options email: %d", toolbarOptionEmail);
        if (toolbarOptionEmail) {
            if (document.canEmail == YES) // Document email enabled
            {
                if ([MFMailComposeViewController canSendMail] == YES) // Can email
                {
                    unsigned long long fileSize = [document.fileSize unsignedLongLongValue];
                    
                    if (fileSize < 15728640ull) // Check attachment size limit (15MB)
                    {
                        rightButtonX -= (iconButtonWidth + buttonSpacing); // Next position
                        
                        UIButton *emailButton = [UIButton buttonWithType:UIButtonTypeCustom];
                        emailButton.frame = CGRectMake(rightButtonX, BUTTON_Y, iconButtonWidth, BUTTON_HEIGHT);
                        [emailButton setImage:[UIImage imageNamed:@"Reader-Email"] forState:UIControlStateNormal];
                        [emailButton addTarget:self action:@selector(emailButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
                        [emailButton setBackgroundImage:buttonH forState:UIControlStateHighlighted];
                        [emailButton setBackgroundImage:buttonN forState:UIControlStateNormal];
                        emailButton.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
                        //emailButton.backgroundColor = [UIColor grayColor];
                        emailButton.exclusiveTouch = YES;
                        
                        [self addSubview:emailButton]; titleWidth -= (iconButtonWidth + buttonSpacing);
                    }
                }
            }
        }
        
        //get print enabled options
        BOOL toolbarOptionPrint = [[[options objectForKey: @"print"] objectForKey: @"enabled"] boolValue];
        NSLog(@"[pdfviewer] toolbar-options print: %d", toolbarOptionPrint);
        if (toolbarOptionPrint) {
            if ((document.canPrint == YES) && (document.password == nil)) // Document print enabled
            {
                Class printInteractionController = NSClassFromString(@"UIPrintInteractionController");
                
                if ((printInteractionController != nil) && [printInteractionController isPrintingAvailable])
                {
                    rightButtonX -= (iconButtonWidth + buttonSpacing); // Next position
                    
                    UIButton *printButton = [UIButton buttonWithType:UIButtonTypeCustom];
                    printButton.frame = CGRectMake(rightButtonX, BUTTON_Y, iconButtonWidth, BUTTON_HEIGHT);
                    [printButton setImage:[UIImage imageNamed:@"Reader-Print"] forState:UIControlStateNormal];
                    [printButton addTarget:self action:@selector(printButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
                    [printButton setBackgroundImage:buttonH forState:UIControlStateHighlighted];
                    [printButton setBackgroundImage:buttonN forState:UIControlStateNormal];
                    printButton.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
                    //printButton.backgroundColor = [UIColor grayColor];
                    printButton.exclusiveTouch = YES;
                    
                    [self addSubview:printButton]; titleWidth -= (iconButtonWidth + buttonSpacing);
                }
            }
        }
        
        //get open with enabled options
        BOOL toolbarOptionOpenWith = [[[options objectForKey: @"openWith"] objectForKey: @"enabled"] boolValue];
        NSLog(@"[pdfviewer] toolbar-options open with: %d", toolbarOptionOpenWith);
        if (toolbarOptionOpenWith) {
            if (document.canExport == YES) // Document export enabled
            {
                rightButtonX -= (iconButtonWidth + buttonSpacing); // Next position
                
                UIButton *exportButton = [UIButton buttonWithType:UIButtonTypeCustom];
                exportButton.frame = CGRectMake(rightButtonX, BUTTON_Y, iconButtonWidth, BUTTON_HEIGHT);
                [exportButton setImage:[UIImage imageNamed:@"Reader-Export"] forState:UIControlStateNormal];
                [exportButton addTarget:self action:@selector(exportButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
                [exportButton setBackgroundImage:buttonH forState:UIControlStateHighlighted];
                [exportButton setBackgroundImage:buttonN forState:UIControlStateNormal];
                exportButton.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
                //exportButton.backgroundColor = [UIColor grayColor];
                exportButton.exclusiveTouch = YES;
                
                [self addSubview:exportButton]; titleWidth -= (iconButtonWidth + buttonSpacing);
            }
        }
        
        //view modes
        UIImage *singlePageButton = [UIImage imageNamed:@"SDVReader-SinglePage"];
        UIImage *doublePageButton = [UIImage imageNamed:@"SDVReader-DoublePage"];
        UIImage *coverPageButton = [UIImage imageNamed:@"SDVReader-CoverPage"];
        NSArray *buttonItems = [NSArray arrayWithObjects:singlePageButton, doublePageButton, coverPageButton, nil];
        
        BOOL useTint = [self respondsToSelector:@selector(tintColor)]; // iOS 7 and up

        //don't show viewmode for single page documents
        if ([document.pageCount intValue] > 1)
        {
        rightButtonX -= (SHOW_CONTROL_WIDTH + buttonSpacing); // Next position
        
        UISegmentedControl *showControl = [[UISegmentedControl alloc] initWithItems:buttonItems];
        showControl.frame = CGRectMake(rightButtonX, BUTTON_Y, SHOW_CONTROL_WIDTH, BUTTON_HEIGHT);
        showControl.tintColor = (useTint ? [UIColor blackColor] : [UIColor colorWithWhite:0.8f alpha:1.0f]);
        showControl.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
        showControl.segmentedControlStyle = UISegmentedControlStyleBar;
        showControl.selectedSegmentIndex = 0; // Default segment index
        //showControl.backgroundColor = [UIColor grayColor];
        showControl.exclusiveTouch = YES;
        
        [showControl addTarget:self action:@selector(showControlTapped:) forControlEvents:UIControlEventValueChanged];
        
        [self addSubview:showControl];
        //adjust available width for document title
        titleWidth -= (SHOW_CONTROL_WIDTH + buttonSpacing);
        }
        
        if (largeDevice == YES) // Show document filename in toolbar
        {
            CGRect titleRect = CGRectMake(titleX, BUTTON_Y, titleWidth, TITLE_HEIGHT);
            
            UILabel *titleLabel = [[UILabel alloc] initWithFrame:titleRect];
            
            titleLabel.textAlignment = NSTextAlignmentCenter;
            titleLabel.font = [UIFont systemFontOfSize:TITLE_FONT_SIZE];
            titleLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
            titleLabel.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
            titleLabel.textColor = [UIColor colorWithWhite:0.0f alpha:1.0f];
            titleLabel.backgroundColor = [UIColor clearColor];
            titleLabel.adjustsFontSizeToFitWidth = YES;
            titleLabel.minimumScaleFactor = 0.75f;
            //get title from options
            NSString *toolbarOptionTitle = [options objectForKey: @"title"];
            NSLog(@"[pdfviewer] toolbar-options title label: %@", toolbarOptionTitle);
            titleLabel.text = toolbarOptionTitle?:[document.fileName stringByDeletingPathExtension];
#if (READER_FLAT_UI == FALSE) // Option
            titleLabel.shadowColor = [UIColor colorWithWhite:0.75f alpha:1.0f];
            titleLabel.shadowOffset = CGSizeMake(0.0f, 1.0f);
#endif // end of READER_FLAT_UI Option
            
            [self addSubview:titleLabel];
        }
    }
    
    return self;
}

#pragma mark - UISegmentedControl action methods

- (void)showControlTapped:(UISegmentedControl *)control
{
    [self.delegate tappedInToolbar:self showControl:control];
}

@end