/*  RetroArch - A frontend for libretro.
 *  Copyright (C) 2013 - Jason Fetters
 * 
 *  RetroArch is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *  PURPOSE.  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with RetroArch.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#include <sys/stat.h>

#include "RetroArch_Apple.h"
#include "setting_data.h"

#include "general.h"
#include "file.h"

void apple_display_alert(NSString* message, NSString* title)
{
#ifdef IOS
   UIAlertView* alert = [[UIAlertView alloc] initWithTitle:title ? title : @"RetroArch"
                                             message:message
                                             delegate:nil
                                             cancelButtonTitle:@"OK"
                                             otherButtonTitles:nil];
   [alert show];
#else
   NSAlert* alert = [[NSAlert new] autorelease];
   
   [alert setMessageText:title ? title : @"RetroArch"];
   [alert setInformativeText:message];
   [alert setAlertStyle:NSInformationalAlertStyle];
   [alert beginSheetModalForWindow:[RetroArch_OSX get].window
          modalDelegate:apple_platform
          didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:)
          contextInfo:nil];
   [[NSApplication sharedApplication] runModalForWindow:[alert window]];
#endif
}

// Fetch a value from a config file, returning defaultValue if the value is not present
NSString* objc_get_value_from_config(config_file_t* config, NSString* name, NSString* defaultValue)
{
   char* data = 0;
   if (config)
      config_get_string(config, [name UTF8String], &data);
   
   NSString* result = data ? BOXSTRING(data) : defaultValue;
   free(data);
   return result;
}

// Get a core ID as an NSString
NSString *apple_get_core_id(const core_info_t *core)
{
   char buf[PATH_MAX];
   return BOXSTRING(apple_core_info_get_id(core, buf, sizeof(buf)));
}

NSString *apple_get_core_display_name(NSString *core_id)
{
   const core_info_t *core = apple_core_info_list_get_by_id([core_id UTF8String]);
   return core ? BOXSTRING(core->display_name) : core_id;
}

// Number formatter class for setting strings
@implementation RANumberFormatter
- (id)initWithSetting:(const rarch_setting_t*)setting
{
   if ((self = [super init]))
   {
      [self setAllowsFloats:(setting->type == ST_FLOAT)];
      
      if (setting->flags & SD_FLAG_HAS_RANGE)
      {
         [self setMinimum:BOXFLOAT(setting->min)];
         [self setMaximum:BOXFLOAT(setting->max)];      
      }
   }
   
   return self;
}

- (BOOL)isPartialStringValid:(NSString*)partialString newEditingString:(NSString**)newString errorDescription:(NSString**)error
{
   bool hasDot = false;

   if ([partialString length])
      for (int i = 0; i != [partialString length]; i ++)
      {
         unichar ch = [partialString characterAtIndex:i];
         
         if (i == 0 && (![self minimum] || [[self minimum] intValue] < 0) && ch == '-')
            continue;
         else if ([self allowsFloats] && !hasDot && ch == '.')
            hasDot = true;
         else if (!isdigit(ch))
            return NO;
      }

   return YES;
}

#ifdef IOS
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
   NSString* text = [[textField text] stringByReplacingCharactersInRange:range withString:string];
   return [self isPartialStringValid:text newEditingString:nil errorDescription:nil];
}
#endif

@end