/* Tools.m
 *  
 * Copyright (C) 2004 Free Software Foundation, Inc.
 *
 * Author: Enrico Sersale <enrico@imago.ro>
 * Date: January 2004
 *
 * This file is part of the GNUstep GWorkspace application
 *
 * This program 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 Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
 */

#include <Foundation/Foundation.h>
#include <AppKit/AppKit.h>
#include <math.h>
#include "Tools.h"
#include "Inspector.h"
#include "IconView.h"
#include "Functions.h"
#include "FSNodeRep.h"

#define ICNSIZE 48

static NSString *nibName = @"Tools";

@implementation Tools

- (void)dealloc
{
	TEST_RELEASE (toolsBox); 
	TEST_RELEASE (errLabel); 
	TEST_RELEASE (mainBox);   
	TEST_RELEASE (insppaths);
  TEST_RELEASE (extensions);
	TEST_RELEASE (currentApp);
  
  [super dealloc];
}

- (id)initForInspector:(id)insp
{
  self = [super init];
  
  if (self) {
    NSRect r;
    id cell;
  
    if ([NSBundle loadNibNamed: nibName owner: self] == NO) {
      NSLog(@"failed to load %@!", nibName);
      DESTROY (self);
      return self;
    } 
    
    RETAIN (mainBox);
    RETAIN (toolsBox);
    RELEASE (win); 

    inspector = insp;
    [iconView setInspector: inspector];
    ws = [NSWorkspace sharedWorkspace];

    [scrollView setBorderType: NSBezelBorder];
    [scrollView setHasHorizontalScroller: YES];
    [scrollView setHasVerticalScroller: NO]; 

  	cell = [NSButtonCell new];
  	[cell setButtonType: NSPushOnPushOffButton];
  	[cell setImagePosition: NSImageOnly]; 

  	matrix = [[NSMatrix alloc] initWithFrame: NSZeroRect
			      	  					mode: NSRadioModeMatrix prototype: cell
		       							    			numberOfRows: 0 numberOfColumns: 0];
    RELEASE (cell);
		[matrix setIntercellSpacing: NSZeroSize];
    [matrix setCellSize: NSMakeSize(64, [[scrollView contentView] bounds].size.height)];
		[matrix setAllowsEmptySelection: YES];
  	[matrix setTarget: self];		
  	[matrix setAction: @selector(setCurrentApplication:)];		
  	[matrix setDoubleAction: @selector(openFile:)];		    
		[scrollView setDocumentView: matrix];	
    RELEASE (matrix);

    r = [toolsBox bounds];
    r.origin.y = 165;
    r.size.height = 25;
  	errLabel = [[NSTextField alloc] initWithFrame: r];	
  	[errLabel setAlignment: NSCenterTextAlignment];
		[errLabel setFont: [NSFont systemFontOfSize: 18]];
  	[errLabel setBackgroundColor: [NSColor windowBackgroundColor]];
  	[errLabel setTextColor: [NSColor darkGrayColor]];	
  	[errLabel setBezeled: NO];
  	[errLabel setEditable: NO];
  	[errLabel setSelectable: NO];
		[errLabel setStringValue: NSLocalizedString(@"No Tools Inspector", @"")];

    insppaths = nil;
		currentApp = nil;
    extensions = nil;
		valid = YES;
    [okButt setEnabled: NO]; 
	}
  
	return self;
}

- (NSView *)inspView
{
  return mainBox;
}

- (NSString *)winname
{
  return NSLocalizedString(@"Tools Inspector", @"");
}

- (void)activateForPaths:(NSArray *)paths
{
  BOOL toolsok = YES;
	int pathscount;
	int i;

  if (paths == nil) {
    DESTROY (insppaths);
    return;
  }

	[okButt setEnabled: NO];		  

	pathscount = [paths count];

	if (pathscount == 1) { 
    FSNode *node = [FSNode nodeWithPath: [paths objectAtIndex: 0]];
    NSImage *icon = [[FSNodeRep sharedInstance] iconOfSize: ICNSIZE forNode: node];
  
    [iconView setImage: icon];
    [titleField setStringValue: [node name]];
  } else {
    NSImage *icon = [[FSNodeRep sharedInstance] multipleSelectionIconOfSize: ICNSIZE];
    NSString *items = NSLocalizedString(@"items", @"");
    items = [NSString stringWithFormat: @"%i %@", pathscount, items];
		[titleField setStringValue: items];  
    [iconView setImage: icon];
  }
   
  for (i = 0; i < [paths count]; i++) {
    FSNode *node = [FSNode nodeWithPath: [paths objectAtIndex: i]];
  
    if ([node isValid]) {
		  if ([node isPlain] == NO) {
			  toolsok = NO;		
			  break;
      }
    } else {  
      toolsok = NO;		
      break;
    }
  }
    
	if (toolsok == YES) {		  	
		if (valid == NO) {
      [errLabel removeFromSuperview];
      [mainBox addSubview: toolsBox];
			valid = YES;
		}
    [self findApplicationsForPaths: paths];
		
	} else {
		if (valid == YES) {
      [toolsBox removeFromSuperview];
      [mainBox addSubview: errLabel];
			valid = NO;
		}
	}
}

- (void)findApplicationsForPaths:(NSArray *)paths
{
	NSMutableDictionary *extensionsAndApps;
  NSMutableArray *commonApps;   
  NSString *s;
	id cell;
	BOOL appsforext;
  int i, count;
		
  ASSIGN (insppaths, paths);

	TEST_RELEASE (extensions);
  extensions = [NSMutableArray new];
  extensionsAndApps = [NSMutableDictionary dictionary];

	DESTROY (currentApp);
	[defAppField setStringValue: @""];
	[defPathField setStringValue: @""];

	appsforext = YES;
	
  for (i = 0; i < [insppaths count]; i++) {
    NSString *ext = [[insppaths objectAtIndex: i] pathExtension];		

    if ([extensions containsObject: ext] == NO) { 
		  NSDictionary *extinfo = [ws infoForExtension: ext];
			
      if (extinfo) {
		    NSMutableArray *appsnames = [NSMutableArray arrayWithCapacity: 1];
				[appsnames addObjectsFromArray: [extinfo allKeys]];
        [extensionsAndApps setObject: appsnames forKey: ext];
				[extensions addObject: ext];				
      } else {
				appsforext = NO;
			}
    }            
  }   
				
  if ([extensions count] == 1) {
    NSString *ext = [extensions objectAtIndex: 0];
    commonApps = [NSArray arrayWithArray: [extensionsAndApps objectForKey: ext]];    
    currentApp = [ws getBestAppInRole: nil forExtension: ext];
    TEST_RETAIN (currentApp);			
		
  } else {
    int j, n;
		
		for (i = 0; i < [extensions count]; i++) {
			NSString *ext1 = [extensions objectAtIndex: i];
			NSMutableArray *a1 = [extensionsAndApps objectForKey: ext1];			
			
			for (j = 0; j < [extensions count]; j++) {
				NSString *ext2 = [extensions objectAtIndex: j];
				NSMutableArray *a2 = [extensionsAndApps objectForKey: ext2];
				
				count = [a1 count];			
				for (n = 0; n < count; n++) {
					NSString *s = [a1 objectAtIndex: n];
					if ([a2 containsObject: s] == NO) {
						[a1 removeObject: s];
						count--;
						n--;
					}
				}
				[extensionsAndApps setObject: a1 forKey: ext1];
			}
		}

    commonApps = [NSMutableArray array];

    for (i = 0; i < [extensions count]; i++) {
      NSString *ext = [extensions objectAtIndex: i];
			NSArray *apps = [extensionsAndApps objectForKey: ext];
			
			for (j = 0; j < [apps count]; j++) {
				NSString *app = [apps objectAtIndex: j];
				if ([commonApps containsObject: app] == NO) {
					[commonApps addObject: app];
				}
			}
    }
		
		if ([commonApps count] != 0) {
			BOOL iscommapp = YES;		
			NSString *ext1 = [extensions objectAtIndex: 0];

			currentApp = [ws getBestAppInRole: nil forExtension: ext1];
			
			if ([commonApps containsObject: currentApp]) {
    		for (i = 1; i < [extensions count]; i++) {
					NSString *ext2 = [extensions objectAtIndex: i];
					NSString *app = [ws getBestAppInRole: nil forExtension: ext2];

					if ([currentApp isEqual: app] == NO) {
						iscommapp = NO;
					}
    		}
			} else {
				currentApp = nil;
			}

			if ((iscommapp == YES) && (currentApp != nil) && appsforext) {
				RETAIN (currentApp);		
			} else {
				currentApp = nil;
			}
		}
  }

  if (([commonApps count] != 0) && (currentApp != nil) && (appsforext == YES)) {
 	  [okButt setEnabled: YES];
  }	else {
 	  [okButt setEnabled: NO];
  }
	
	count = [commonApps count];
	
	[matrix renewRows: 1 columns: count];
	[matrix sizeToCells];
	
	if (appsforext) {
		for (i = 0; i < count; i++) {
			NSString *appName = [commonApps objectAtIndex: i];
      FSNode *node = [FSNode nodeWithPath: [ws fullPathForApplication: appName]];
      NSImage *icon = [[FSNodeRep sharedInstance] iconOfSize: ICNSIZE forNode: node];

			cell = [matrix cellAtRow: 0 column: i];
			[cell setImage: icon];
			[cell setTitle: appName];
		}
    
		[matrix sizeToCells];
	}
	
	if (currentApp != nil) {
		NSArray *cells = [matrix cells];
		
		for(i = 0; i < [cells count]; i++) {
			cell = [cells objectAtIndex: i];
			if(cell && ([[cell title] isEqualToString: currentApp])) {
				[matrix selectCellAtRow: 0 column: i];
				[matrix scrollCellToVisibleAtRow: 0 column: i];
				break;
			}
		}

	  [defAppField setStringValue: [currentApp stringByDeletingPathExtension]];
    s = [ws fullPathForApplication: currentApp];
		if (s != nil) {
    	s = relativePathFit(defPathField, s);
		} else {
			s = @"";
		}
	  [defPathField setStringValue: s];
	}
}

- (void)setCurrentApplication:(id)sender
{
  NSString *s;
	
	ASSIGN (currentApp, [[sender selectedCell] title]);	
  s = [ws fullPathForApplication: currentApp];
  s = relativePathFit(defPathField, s);
	[defPathField setStringValue: s];
  [defAppField setStringValue: [currentApp stringByDeletingPathExtension]];  
}

- (IBAction)setDefaultApplication:(id)sender
{
  NSString *ext, *app;
  NSDictionary *changedInfo;
  NSArray *cells;
  NSMutableArray *newApps;
  id cell;
  FSNode *node;
  NSImage *icon;
  int i, count;
  
  for (i = 0; i < [extensions count]; i++) {
    ext = [extensions objectAtIndex: i];  		
    [ws setBestApp: currentApp inRole: nil forExtension: ext];  
  }

  changedInfo = [NSDictionary dictionaryWithObjectsAndKeys: 
                                                  currentApp, @"app", 
                                                  extensions, @"exts", nil];
  
	[[NSDistributedNotificationCenter defaultCenter]
 				   postNotificationName: @"GWAppForExtensionDidChangeNotification"
	 								       object: nil
                       userInfo: changedInfo];  
  
  newApps = [NSMutableArray arrayWithCapacity: 1];
  [newApps addObject: currentApp];
  
  cells = [matrix cells];
	for(i = 0; i < [cells count]; i++) {
    app = [[cells objectAtIndex: i] title];
		if ([app isEqual: currentApp] == NO) {
      [newApps insertObject: app atIndex: [newApps count]];
		}
  }
  
	count = [newApps count];
	[matrix renewRows: 1 columns: count];
  
  for (i = 0; i < count; i++) {
		cell = [matrix cellAtRow: 0 column: i];
		app = [newApps objectAtIndex: i];
		[cell setTitle: app];
    node = [FSNode nodeWithPath: [ws fullPathForApplication: app]];
    icon = [[FSNodeRep sharedInstance] iconOfSize: ICNSIZE forNode: node];
		[cell setImage: icon];
	}

  [matrix scrollCellToVisibleAtRow: 0 column: 0];
  [matrix selectCellAtRow: 0 column: 0];
}

- (void)openFile:(id)sender
{
  int i;
  
  for (i = 0; i < [insppaths count]; i++) {
    NSString *fpath = [insppaths objectAtIndex: i];
        
    NS_DURING
      {
    [ws openFile: fpath withApplication: [[sender selectedCell] title]];
      }
    NS_HANDLER
      {
    NSRunAlertPanel(NSLocalizedString(@"error", @""), 
        [NSString stringWithFormat: @"%@ %@!", 
          NSLocalizedString(@"Can't open ", @""), [fpath lastPathComponent]],
                                      NSLocalizedString(@"OK", @""), 
                                      nil, 
                                      nil);                                     
      }
    NS_ENDHANDLER  
  }
}

- (void)watchedPathDidChange:(NSDictionary *)info
{
}

@end