/* 
Copyright 2015 Hardcoded Software (http://www.hardcoded.net)

This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
which should be included with this package. The terms are also available at 
http://www.gnu.org/licenses/gpl-3.0.html
*/

#import "Utils.h"
#import <CoreServices/CoreServices.h>

@implementation Utils
//This is to pass index sets to python as arrays (so it can be converted to native lists)
+ (NSArray *)indexSet2Array:(NSIndexSet *)aIndexSet
{
    NSMutableArray *r = [NSMutableArray array];
    NSInteger i = [aIndexSet firstIndex];
    while (i != NSNotFound)
    {
        [r addObject:[NSNumber numberWithInteger:i]];
        i = [aIndexSet indexGreaterThanIndex:i];
    }
    return r;
}

// numberArray is an array of NSNumber
+ (NSIndexSet *)array2IndexSet:(NSArray *)numberArray
{
    NSMutableIndexSet *set = [NSMutableIndexSet indexSet];
    NSEnumerator *e = [numberArray objectEnumerator];
    NSNumber *n;
    while (n = [e nextObject])
        [set addIndex:n2i(n)];
    return set;
}

//Changes an NSIndexPath into an NSArray
+ (NSArray *)indexPath2Array:(NSIndexPath *)aIndexPath
{
    NSMutableArray *r = [NSMutableArray array];
    if (!aIndexPath)
        return r;
    for (int i=0;i<[aIndexPath length];i++)
        [r addObject:i2n([aIndexPath indexAtPosition:i])];
    return r;
}

// Changes a NSArray of numbers into a NSIndexPath
// indexArray must have at least one item
+ (NSIndexPath *)array2IndexPath:(NSArray *)indexArray
{
    if (![indexArray count])
    {
        return nil;
    }
    NSEnumerator *e = [indexArray objectEnumerator];
    NSNumber *n = [e nextObject];
    NSIndexPath *ip = [NSIndexPath indexPathWithIndex:n2i(n)];
    while (n = [e nextObject])
        ip = [ip indexPathByAddingIndex:n2i(n)];
    return ip;
}

+ (NSString *)indexPath2String:(NSIndexPath *)aIndexPath
{
    NSMutableArray *components = [NSMutableArray array];
    for (int i=0; i<[aIndexPath length]; i++)
        [components addObject:i2n([aIndexPath indexAtPosition:i])];
    return [components componentsJoinedByString:@"_"];
}

+ (NSIndexPath *)string2IndexPath:(NSString *)aString
{
    if (aString == nil)
    {
        return nil;
    }
    NSArray *components = [aString componentsSeparatedByString:@"_"];
    NSMutableArray *indexes = [NSMutableArray array];
    for (int i=0; i<[components count]; i++)
        [indexes addObject:i2n([[components objectAtIndex:i] intValue])];
    return [Utils array2IndexPath:indexes];
}
@end

void replacePlaceholderInView(NSView *placeholder, NSView *replaceWith)
{
    NSView *parent = [placeholder superview];
    [replaceWith setFrame:[placeholder frame]];
    [replaceWith setAutoresizingMask:[placeholder autoresizingMask]];
    [parent replaceSubview:placeholder with:replaceWith];
}