#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
#import <Renaissance/Renaissance.h>
#import "PreferencesController.h"
#import "Preferences.h"
#import "Archive.h"

#define TAG_TAR		1
#define TAG_UNZIP		2
#define TAG_RAR		3
#define TAG_LHA		4
#define TAG_LZX		5
#define TAG_SEVEN_ZIP	6

@implementation PreferencesController : NSObject

- (id)init
{
	NSString *string;
	BOOL tarFlag;

    [super init];
    [NSBundle loadGSMarkupNamed: @"Preferences" owner: self];
    
	// tar
	string = [Preferences tarExecutable];
	[_tarTextField setStringValue:string];
	// zip
	string = [Preferences zipExecutable];
	[_unzipTextField setStringValue:string];
	// rar
	string = [Preferences rarExecutable];
	[_rarTextField setStringValue:string];
	// lha
	string = [Preferences lhaExecutable];
	[_lhaTextField setStringValue:string];
	// lzx
	string = [Preferences lzxExecutable];
	[_lzxTextField setStringValue:string];
	// bsd tar checkbox
	tarFlag = [Preferences isBsdTar];
	[_bsdTarButon setState:tarFlag];
	// default open app text field
	string = [[Preferences defaultOpenApp] lastPathComponent];
	[_defaultOpenApp setStringValue:string];

    return self;
}

/**
 * runs the Preferences Panel in a modal event loop
 */
- (void)showPreferencesPanel
{
	NSModalSession modalSession = [NSApp beginModalSessionForWindow:_panel];
	[NSApp runModalForWindow:_panel];
	// control flow returns to the panel ... until 'ok' or 'cancel' is pressed
	[NSApp endModalSession:modalSession];
	[_panel close];
}

- (void)okPressed:(id)sender
{
	NSString *string;

	NS_DURING
		string = [_tarTextField stringValue];
		[Preferences setTarExecutable:string];

		string = [_unzipTextField stringValue];
		[Preferences setZipExecutable:string];
		
		string = [_rarTextField stringValue];
		[Preferences setRarExecutable:string];
		
		string = [_lhaTextField stringValue];
		[Preferences setLhaExecutable:string];

		string = [_lzxTextField stringValue];
		[Preferences setLzxExecutable:string];

		string = [_sevenZipTextField stringValue];
		[Preferences setSevenZipExecutable:string];

		[Preferences setIsBsdTar:[_bsdTarButon state]];
		[Preferences save];

		[NSApp stopModal];
	NS_HANDLER
		NSRunAlertPanel(@"Error in Preferences", [localException reason], nil, nil, nil);
	NS_ENDHANDLER
}

- (void)cancelPressed:(id)sender
{
	[NSApp stopModal];
}

- (void)findExecutable:(id)sender
{
	NSOpenPanel *openPanel;
	int rc;
				
	openPanel = [NSOpenPanel openPanel];
	[openPanel setTitle:@"Find executable"];
	[openPanel setCanChooseFiles:YES];
	[openPanel setCanChooseDirectories:NO];

	rc = [openPanel runModalForDirectory:@"/" file:nil types:nil];
	if (rc == NSOKButton)
	{
		NSString *path = [openPanel filename];
		
		NS_DURING
			switch ([sender tag])
			{
				case TAG_TAR:
					[_tarTextField setStringValue:path];
					[Preferences setTarExecutable:path];
					break;
					
				case TAG_UNZIP:
					[_unzipTextField setStringValue:path];
					[Preferences setZipExecutable:path];
					break;
				
				case TAG_RAR:
					[_rarTextField setStringValue:path];
					[Preferences setRarExecutable:path];
					break;
					
				case TAG_LHA:
					[_lhaTextField setStringValue:path];
					[Preferences setLhaExecutable:path];
					break;

				case TAG_LZX:
					[_lzxTextField setStringValue:path];
					[Preferences setLzxExecutable:path];
					break;

				case TAG_SEVEN_ZIP:
					[_sevenZipTextField setStringValue:path];
					[Preferences setSevenZipExecutable:path];
					break;
				
				default:
					[NSException raise:NSInvalidArgumentException 
						format:@"invalid tag of find button"];
			}
		NS_HANDLER
			NSRunAlertPanel(@"Error in Preferences", [localException reason], nil, nil, nil);
		NS_ENDHANDLER
	}
}

- (void)findDefaultOpenApp:(id)sender
{
	NSOpenPanel *openPanel;
	NSString *gnustepRoot;
	int rc;
				
	openPanel = [NSOpenPanel openPanel];
	[openPanel setTitle:@"Find default open app"];
	// TODO debug why file apps are still displayed as plain directories
	[openPanel setTreatsFilePackagesAsDirectories:NO];
	[openPanel setCanChooseFiles:NO];
	[openPanel setCanChooseDirectories:YES];

	gnustepRoot = [[[NSProcessInfo processInfo] environment] objectForKey:@"GNUSTEP_ROOT"];
	rc = [openPanel runModalForDirectory:gnustepRoot file:nil types:nil];
	if (rc == NSOKButton)
	{
		[_defaultOpenApp setStringValue:[[openPanel filename] lastPathComponent]];
		[Preferences setDefaultOpenApp:[openPanel filename]];
	}	
}

- (void)windowWillClose:(NSNotification *)aNotification
{
	// make sure we are released. Sine (usually) nobody holds a reference to us
	[self release];
}

@end