Get Finder Current Path & Current Selection using AppleScript

gistfile1.m

#import "AppDelegate.h"

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    NSDictionary *error = nil;
    NSString *source = @"tell application \"Finder\"\ntry\nset dir to the target of the front window\nreturn POSIX path of (dir as text)\non error\nreturn \"/\"\nend try\nend tell";
    NSAppleScript *script = [[NSAppleScript alloc] initWithSource:source];
    
    
    NSAppleEventDescriptor *descriptor = [script executeAndReturnError:&error];
    NSLog(@"%@", descriptor.stringValue);
}
@end

gistfile2.m

#import "AppDelegate.h"

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    NSDictionary *error = nil;
    NSString *source = @"tell application \"Finder\"\nset selectedItem to (POSIX path of (the selection as alias))\nreturn selectedItem\nend tell";
    NSAppleScript *script = [[NSAppleScript alloc] initWithSource:source];
    NSAppleEventDescriptor *descriptor = [script executeAndReturnError:&error];

    NSLog(@"%@", descriptor.stringValue);
}