/*****************************************************************************
 * coredialogs.m: Mac OS X Core Dialogs
 *****************************************************************************
 * Copyright (C) 2005-2012 VLC authors and VideoLAN
 * $Id: 3289e6b9ef0e4024c22226dfee1c023f33da3ff1 $
 *
 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
 *          Felix Paul Kühne <fkuehne at videolan dot org>
 *
 * 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 02110-1301, USA.
 *****************************************************************************/

#import "intf.h"
#import "coredialogs.h"
#import "misc.h"

/* for the icon in our custom error panel */
#import <ApplicationServices/ApplicationServices.h>

/*****************************************************************************
 * VLCCoreDialogProvider implementation
 *****************************************************************************/
@implementation VLCCoreDialogProvider

static VLCCoreDialogProvider *_o_sharedInstance = nil;

+ (VLCCoreDialogProvider *)sharedInstance
{
    return _o_sharedInstance ? _o_sharedInstance : [[self alloc] init];
}

-(id)init
{
    if (_o_sharedInstance)
        [self dealloc];
    else {
        _o_sharedInstance = [super init];
        o_error_panel = [[VLCErrorPanel alloc] init];
        b_progress_cancelled = NO;
    }

    return _o_sharedInstance;
}

-(void)awakeFromNib
{
    [o_auth_login_txt setStringValue: _NS("User name")];
    [o_auth_pw_txt setStringValue: _NS("Password")];
    [o_auth_cancel_btn setTitle: _NS("Cancel")];
    [o_auth_ok_btn setTitle: _NS("OK")];
    [o_prog_cancel_btn setTitle: _NS("Cancel")];
    [o_prog_bar setUsesThreadedAnimation: YES];

}

-(void)performEventWithObject: (NSValue *)o_value ofType: (const char*)type
{
    NSString *o_type = [NSString stringWithUTF8String:type];

    if ([o_type isEqualToString: @"dialog-error"])
        [self performSelectorOnMainThread:@selector(showFatalDialog:) withObject:o_value waitUntilDone:YES];
    else if ([o_type isEqualToString: @"dialog-critical"])
        [self performSelectorOnMainThread:@selector(showFatalWaitDialog:) withObject:o_value waitUntilDone:YES];
    else if ([o_type isEqualToString: @"dialog-question"])
        [self performSelectorOnMainThread:@selector(showQuestionDialog:) withObject:o_value waitUntilDone:YES];
    else if ([o_type isEqualToString: @"dialog-login"])
        [self performSelectorOnMainThread:@selector(showLoginDialog:) withObject:o_value waitUntilDone:YES];
    else if ([o_type isEqualToString: @"dialog-progress-bar"])
        [self performSelectorOnMainThread:@selector(showProgressDialogOnMainThread:) withObject: o_value waitUntilDone:YES];
    else
        msg_Err(VLCIntf, "unhandled dialog type: '%s'", type);
}

-(void)showFatalDialog: (NSValue *)o_value
{
    dialog_fatal_t *p_dialog = [o_value pointerValue];

    [o_error_panel addError: toNSStr(p_dialog->title) withMsg: toNSStr(p_dialog->message)];
    [o_error_panel showPanel];
}

-(void)showFatalWaitDialog: (NSValue *)o_value
{
    dialog_fatal_t *p_dialog = [o_value pointerValue];
    NSAlert *o_alert;

    o_alert = [NSAlert alertWithMessageText: toNSStr(p_dialog->title) defaultButton: _NS("OK") alternateButton: nil otherButton: nil informativeTextWithFormat: @"%@", toNSStr(p_dialog->message)];
    [o_alert setAlertStyle: NSCriticalAlertStyle];
    [o_alert runModal];
}

-(void)showQuestionDialog: (NSValue *)o_value
{
    dialog_question_t *p_dialog = [o_value pointerValue];
    NSAlert *o_alert;
    NSInteger i_returnValue = 0;
  
    o_alert = [NSAlert alertWithMessageText: toNSStr(p_dialog->title) defaultButton: toNSStr(p_dialog->yes) alternateButton: toNSStr(p_dialog->no) otherButton: toNSStr(p_dialog->cancel) informativeTextWithFormat:@"%@", toNSStr(p_dialog->message)];
    [o_alert setAlertStyle: NSInformationalAlertStyle];
    i_returnValue = [o_alert runModal];

    if (i_returnValue == NSAlertDefaultReturn)
        p_dialog->answer = 1;
    if (i_returnValue == NSAlertAlternateReturn)
        p_dialog->answer = 2;
    if (i_returnValue == NSAlertOtherReturn)
        p_dialog->answer = 3;
}

-(void)showLoginDialog: (NSValue *)o_value
{
    dialog_login_t *p_dialog = [o_value pointerValue];
    NSInteger i_returnValue = 0;

    [o_auth_title_txt setStringValue: toNSStr(p_dialog->title)];
    [o_auth_win setTitle: toNSStr(p_dialog->title)];
    [o_auth_description_txt setStringValue: toNSStr(p_dialog->message)];
    [o_auth_login_fld setStringValue: @""];
    [o_auth_pw_fld setStringValue: @""];

    [o_auth_win center];
    i_returnValue = [NSApp runModalForWindow: o_auth_win];
    [o_auth_win close];
    if (i_returnValue)
    {
        *p_dialog->username = strdup([[o_auth_login_fld stringValue] UTF8String]);
        *p_dialog->password = strdup([[o_auth_pw_fld stringValue] UTF8String]);
    } else
        *p_dialog->username = *p_dialog->password = NULL;
}

-(IBAction)loginDialogAction:(id)sender
{
    if ([[sender title] isEqualToString: _NS("OK")])
        [NSApp stopModalWithCode: 1];
    else
        [NSApp stopModalWithCode: 0];
}

-(void)showProgressDialogOnMainThread: (NSValue *)o_value
{
    /* we work-around a Cocoa limitation here, since you cannot delay an execution
     * on the main thread within a single call */
    b_progress_cancelled = NO;

    dialog_progress_bar_t *p_dialog = [o_value pointerValue];
    if (!p_dialog || b_progress_cancelled)
        return;

    [o_prog_win setTitle: toNSStr(p_dialog->title)];
    [o_prog_title_txt setStringValue: toNSStr(p_dialog->title)];

    if (p_dialog->cancel != NULL)
        [o_prog_cancel_btn setTitle: [NSString stringWithUTF8String:p_dialog->cancel]];
    else
        [o_prog_cancel_btn setTitle: _NS("Cancel")];

    [o_prog_description_txt setStringValue: toNSStr(p_dialog->message)];

    if (VLCIntf)
        [self performSelector:@selector(showProgressDialog:) withObject: o_value afterDelay:3.00];
}

-(void)showProgressDialog: (NSValue *)o_value
{
    dialog_progress_bar_t *p_dialog = [o_value pointerValue];

    if (!p_dialog || b_progress_cancelled)
        return;

    [o_prog_bar setDoubleValue: 0];
    [o_prog_bar setIndeterminate: YES];
    [o_prog_bar startAnimation: self];

    [o_prog_win makeKeyAndOrderFront: self];
}

-(void)updateProgressPanelWithText: (NSString *)string andNumber: (double)d_number
{
    [o_prog_description_txt setStringValue: string];
    if (d_number > 0)
        [o_prog_bar setIndeterminate: NO];
    [o_prog_bar setDoubleValue: d_number];
}

-(void)destroyProgressPanel
{
    b_progress_cancelled = YES;
    [o_prog_bar performSelectorOnMainThread:@selector(stopAnimation:) withObject:self waitUntilDone:YES];
    [o_prog_win performSelectorOnMainThread:@selector(close) withObject:nil waitUntilDone:YES];
}

-(IBAction)progDialogAction:(id)sender
{
    b_progress_cancelled = YES;
}

-(BOOL)progressCancelled
{
    return b_progress_cancelled;
}

-(id)errorPanel
{
    return o_error_panel;
}

@end

/*****************************************************************************
 * VLCErrorPanel implementation
 *****************************************************************************/
@implementation VLCErrorPanel
-(id)init
{
    [super init];

    if (!b_nib_loaded)
        b_nib_loaded = [NSBundle loadNibNamed:@"ErrorPanel" owner:self];

    /* init data sources */
    o_errors = [[NSMutableArray alloc] init];
    o_icons = [[NSMutableArray alloc] init];

    return self;
}

- (void)awakeFromNib
{
    /* init strings */
    [o_window setTitle: _NS("Errors and Warnings")];
    [o_cleanup_button setTitle: _NS("Clean up")];
}

-(void)dealloc
{
    [o_errors release];
    [o_icons release];
    [super dealloc];
}

-(void)showPanel
{
    [o_window makeKeyAndOrderFront: self];
}

-(void)addError: (NSString *)o_error withMsg:(NSString *)o_msg
{
    /* format our string as desired */
    NSMutableAttributedString * ourError;
    ourError = [[NSMutableAttributedString alloc] initWithString:
        [NSString stringWithFormat:@"%@\n%@", o_error, o_msg]
        attributes:
        [NSDictionary dictionaryWithObject: [NSFont systemFontOfSize:11] forKey: NSFontAttributeName]];
    [ourError
        addAttribute: NSFontAttributeName
        value: [NSFont boldSystemFontOfSize:11]
        range: NSMakeRange(0, [o_error length])];
    [o_errors addObject: ourError];
    [ourError release];

    [o_icons addObject: [[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kAlertStopIcon)]];

    [o_error_table reloadData];
}

-(IBAction)cleanupTable:(id)sender
{
    [o_errors removeAllObjects];
    [o_icons removeAllObjects];
    [o_error_table reloadData];
}

/*----------------------------------------------------------------------------
 * data source methods
 *---------------------------------------------------------------------------*/
- (NSInteger)numberOfRowsInTableView:(NSTableView *)theDataTable
{
    return [o_errors count];
}

- (id)tableView:(NSTableView *)theDataTable objectValueForTableColumn:
    (NSTableColumn *)theTableColumn row: (NSInteger)row
{
    if ([[theTableColumn identifier] isEqualToString: @"error_msg"])
        return [o_errors objectAtIndex:row];

    if ([[theTableColumn identifier] isEqualToString: @"icon"])
        return [o_icons objectAtIndex:row];

    return @"unknown identifier";
}

@end
