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//
//  AppDelegate.m
//  emojiexport
//
//  Created by Гришка on 14.08.12
//  Copyright (c) 2012 Гришка
//  Copyright (c) 2019 ch1p_
//
//  All rights reserved
//

#import "AppDelegate.h"

#define FONT_SIZE 40
#define SIZE 40
#define OFFSET -13

//#define FONT_SIZE 20
//#define SIZE 20
//#define OFFSET -7

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    // Insert code here to initialize your application
//	[[self outputTextField] setStringValue:[[[NSFileManager defaultManager] currentDirectoryPath] stringByAppendingString:@"/emoji"]];
}
- (IBAction)pickInputFile:(id)sender {
	NSOpenPanel* panel=[NSOpenPanel openPanel];
	
	[panel beginSheetModalForWindow:[self window] completionHandler:^(NSInteger result){
		if (result == NSFileHandlingPanelOKButton) {
			[[self inputTextField] setStringValue:[panel filename]];
		}
	}];
}

- (IBAction)pickOutputFolder:(id)sender {
	NSOpenPanel* panel=[NSOpenPanel openPanel];
	[panel setCanChooseDirectories:true];
	[panel setCanChooseFiles:false];
	[panel setCanCreateDirectories:true];
	[panel setDirectory:[[self outputTextField] stringValue]];
	[panel beginSheetModalForWindow:[self window] completionHandler:^(NSInteger result){
		if (result == NSFileHandlingPanelOKButton) {
			[[self outputTextField] setStringValue:[panel filename]];
		}
	}];
}

NSString *trimString(NSString* string) {
    return [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
}

unsigned int parseChar(NSString *string) {
    unsigned int result = 0;
    NSScanner *scanner = [NSScanner scannerWithString:string];
    
    [scanner setScanLocation:0]; // bypass '#' character
    [scanner scanHexInt:&result];
    
    return result;
}

NSString *stringFromChar(unsigned int value) {
    UTF32Char inputChar = value; // input UTF32 value
    inputChar = NSSwapHostIntToLittle(inputChar); // swap to little-endian if necessary
    NSString *str = [[NSString alloc] initWithBytes:&inputChar length:4 encoding:NSUTF32LittleEndianStringEncoding];
    return str;
}

- (IBAction)doThat:(id)sender {
    NSString *fontPath = [[self inputTextField] stringValue];
    NSString *dir = [[self outputTextField] stringValue];
    
    CGDataProviderRef dataProvider = CGDataProviderCreateWithFilename([fontPath UTF8String]);
    
    // Create the font with the data provider, then release the data provider.
    CGFontRef fontRef = CGFontCreateWithDataProvider( dataProvider );
    
    CTFontRef fontCore = CTFontCreateWithGraphicsFont(fontRef, FONT_SIZE, NULL, NULL);
    CGDataProviderRelease(dataProvider);
    CGFontRelease(fontRef);
    NSFont *font = (__bridge NSFont*)fontCore;

    NSString *emojiDataFile = [NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"emoji-data" ofType:@"txt"] encoding:NSUTF8StringEncoding error:nil];
    NSArray *lines = [emojiDataFile componentsSeparatedByString:@"\n"];
    
    NSMutableArray *emoji = [NSMutableArray new];
  
    emojiDataFile = [NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"emoji-test" ofType:@"txt"] encoding:NSUTF8StringEncoding error:nil];
    lines = [emojiDataFile componentsSeparatedByString:@"\n"];
    
    NSMutableArray *unicodes = [NSMutableArray new];
    
    for(NSString *line in lines) {
        if([line length] == 0 || [line characterAtIndex:0] ==';') {
            continue;
        }
        
        NSArray *parts = [line componentsSeparatedByString:@";"];
        if (parts.count < 2) {
            continue;
        }
        NSString *format = trimString(parts[0]);
        NSArray *emojiArray = [trimString(parts[1]) componentsSeparatedByString:@"# "];
        if (emojiArray.count < 2) {
            continue;
        }
        
        NSString *emojiStr = [emojiArray[1] componentsSeparatedByString:@" "][0];
        
        NSString *emojiUnicode = @"";
        NSString *fileNameStr = @"";
        for (NSUInteger i = 0; i < [emojiStr length]; i++) {
            unichar c = [emojiStr characterAtIndex:i];
            NSString *unicode = [NSString stringWithFormat:@"%04x", (unsigned)c];
            
            
            if (i + 1 == [emojiStr length] && [unicode isEqualToString:@"fe0f"]) {
                continue;
            }
            
            
            fileNameStr = [fileNameStr stringByAppendingString:[[NSString stringWithFormat:@"%lX_", (long)c] lowercaseString]];
            emojiUnicode = [emojiUnicode stringByAppendingString:[NSString stringWithFormat:@"\\\\u%@", [unicode uppercaseString]]];
        }
        
        if ([unicodes indexOfObject:emojiUnicode] == NSNotFound) {
            [unicodes addObject:emojiUnicode];
        }
        
        int i = 0;

        fileNameStr = [fileNameStr substringToIndex:fileNameStr.length - 1];
        drawString(emojiStr, fileNameStr, dir, font);
    }

    
    NSArray *unicodesArray = [unicodes sortedArrayUsingComparator:^NSComparisonResult(NSString *a, NSString *b) {
        return a.length > b.length ? NSOrderedAscending : NSOrderedDescending;
    }];
    
    NSString *unicodesString = [unicodesArray componentsJoinedByString:@"|"];
    NSData *unicodesStringData = [unicodesString dataUsingEncoding:NSUTF8StringEncoding];
    [unicodesStringData writeToFile:[NSString stringWithFormat:@"%@/%@", dir, @"unicodes.txt"] atomically:true];
}

NSString *stringFromCodes(NSString *codes) {
    NSArray *codesArray = [codes componentsSeparatedByString:@" "];
    NSString *textCode = @"";
    for(NSString *string in codesArray) {
        unsigned result = 0;
        NSScanner *scanner = [NSScanner scannerWithString:string];
        [scanner scanHexInt:&result];
        
        unichar characterArray[2];
        CFStringGetSurrogatePairForLongCharacter(result, characterArray);
        
        if(characterArray[1] != 0) {
            textCode = [NSString stringWithFormat:@"%@%2X%2X", textCode, characterArray[0], characterArray[1]];
        } else {
            textCode = [NSString stringWithFormat:@"%@%2X", textCode, characterArray[0]];
        }
    }
    return textCode;
}


void drawString(NSString* str, NSString* fileName, NSString* dir, NSFont* font){
    fileName = [[fileName stringByReplacingOccurrencesOfString:@" " withString:@"-"] lowercaseString];

    NSArray *array = @[@"1f5e8", @"23cf", @"0023", @"002a", @"0030", @"0031", @"0032", @"0033", @"0034", @"0035", @"0036", @"0037", @"0038", @"0039", @"1f1e6", @"1f1e7", @"1f1e8", @"1f1e9", @"1f1ea", @"1f1eb", @"1f1ec", @"1f1ed", @"1f1ee", @"1f1ef", @"1f1f0", @"1f1f1", @"1f1f2", @"1f1f3", @"1f1f4", @"1f1f5", @"1f1f6", @"1f1f7", @"1f1f8", @"1f1f9", @"1f1fa", @"1f1fb", @"1f1fc", @"1f1fd", @"1f1fe", @"1f1ff"];
    
    if([array indexOfObject:fileName] != NSNotFound) {
        return;
    }
    
    NSBitmapImageRep *offscreenRep = [[NSBitmapImageRep alloc]
                                      initWithBitmapDataPlanes:NULL
                                      pixelsWide:SIZE
                                      pixelsHigh:SIZE
                                      bitsPerSample:8
                                      samplesPerPixel:4
                                      hasAlpha:YES
                                      isPlanar:NO
                                      colorSpaceName:NSDeviceRGBColorSpace
                                      bitmapFormat:NSAlphaFirstBitmapFormat
                                      bytesPerRow:0
                                      bitsPerPixel:0];
    NSGraphicsContext *g = [NSGraphicsContext graphicsContextWithBitmapImageRep:offscreenRep];
    [NSGraphicsContext saveGraphicsState];
    [NSGraphicsContext setCurrentContext:g];
    
    //NSFont* font=[NSFont fontWithName:@"Apple Color Emoji" size:96];
    NSDictionary* d=[NSDictionary dictionaryWithObjectsAndKeys: font, NSFontAttributeName, nil];
    NSRect rect=[font boundingRectForGlyph:[font glyphWithName:str]];
    
    [str drawAtPoint:CGPointMake(0, OFFSET) withAttributes:d];
    
    
    NSData *data = [offscreenRep representationUsingType: NSPNGFileType properties: nil];
    
    [data writeToFile: [NSString stringWithFormat:@"%@/%@.png", dir, fileName] atomically: NO];
    //NSLog(@"Draw %@ OK [%@] [%f %f %f %f]", str, fileName, rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
}

- (IBAction)outputTextField:(id)sender {
}
@end