/*

File: GridSampleLoginController.m

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*/ 

#import "GridSampleLoginController.h"

#import "GridSampleMainWindowController.h"

#import "GridSampleApplicationDelegate.h"

#import "GridSampleServiceBrowser.h"

#import "GridSampleConnectionController.h"

static const int GridSampleLoginControllerOKReturnCode = 0;

static const int GridSampleLoginControllerCancelReturnCode = 1;

static const int GridSampleLoginControllerAuthenticationNeededReturnCode = 2;

static const int GridSampleLoginControllerAuthenticationMethodSSOTag = 0;

static const int GridSampleLoginControllerAuthenticationMethodPasswordTag = 1;

@interface GridSampleLoginController (Private)

- (void)connectionDidCloseAlertDidEnd:(NSAlert *)alert returnCode:(int)returnCode contextInfo:(void *)contextInfo;

@end

@implementation GridSampleLoginController

- (id)initWithMainWindowController:(GridSampleMainWindowController *)mainWindowController;

{

    self = [super init];

    if (self != nil) {

        _mainWindowController = mainWindowController;

    }

    return self;

}

- (void)dealloc;

{

    [_netServicesArrayController release];

    [_connectSheet release];

    [_authenticationNeededSheet release];

    [_connectFieldValue release];

    [_connectStatusFieldValue release];

    [_passwordFieldValue release];

    [super dealloc];

}

- (void)loadNib;

{

    [NSBundle loadNibNamed:@"Login" owner:self];

}

- (GridSampleMainWindowController *)mainWindowController;

{

    return _mainWindowController;

}

- (void)showConnectSheet;

{

    if (_connectSheet == nil) [self loadNib];

    NSArray *netServiceNames = [[[NSApp delegate] serviceBrowser] valueForKeyPath:@"netServices.name"];

    if ([netServiceNames count] > 0) {

        [self setValue:[netServiceNames objectAtIndex:0] forKey:@"connectFieldValue"];

    }

    [self setValue:@"" forKey:@"connectStatusFieldValue"];

    [NSApp beginSheet:_connectSheet modalForWindow:[[self mainWindowController] window] modalDelegate:self didEndSelector:@selector(connectSheetDidEnd:returnCode:contextInfo:) contextInfo:NULL];

}

- (void)showAuthenticationNeededSheet;

{

    if (_authenticationNeededSheet == nil) [self loadNib];

    [self setValue:@"" forKey:@"passwordFieldValue"];

    [NSApp beginSheet:_authenticationNeededSheet modalForWindow:[[self mainWindowController] window] modalDelegate:self didEndSelector:@selector(authenticationNeededSheetDidEnd:returnCode:contextInfo:) contextInfo:NULL];

}

- (void)showConnectionDidCloseSheet;

{

    NSString *informativeText = @"The connection to the service \"%1$@\" has been lost: %2$@";

    NSString *connectionName = [[[[self mainWindowController] connectionController] connection] name];

    NSError *connectionError = [[[[self mainWindowController] connectionController] connection] error];

    NSString *recoverySuggestion = [NSString localizedStringWithFormat:informativeText, connectionName, connectionError];

    NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:

        @"Connection Failure", NSLocalizedDescriptionKey,

        recoverySuggestion, NSLocalizedRecoverySuggestionErrorKey,

        nil];

    NSError *error = [NSError errorWithDomain:@"" code:0 userInfo:userInfo];

    NSAlert *alert = [NSAlert alertWithError:error];

    if ([[self mainWindowController] window] != nil) {

        [alert beginSheetModalForWindow:[[self mainWindowController] window] modalDelegate:self didEndSelector:@selector(connectionDidCloseAlertDidEnd:returnCode:contextInfo:) contextInfo:NULL];

    }

    else {

        [self connectionDidCloseAlertDidEnd:alert returnCode:[alert runModal] contextInfo:NULL];

    }

}

- (void)connectionDidOpen;

{

    BOOL wasAuthenticating = _isAuthenticating;

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isConnecting"];

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isAuthenticating"];

    [self setValue:@"" forKey:@"connectStatusFieldValue"];

    if (wasAuthenticating == NO) {

        [NSApp endSheet:_connectSheet returnCode:GridSampleLoginControllerOKReturnCode];

    }

    else {

        [NSApp endSheet:_authenticationNeededSheet returnCode:GridSampleLoginControllerOKReturnCode];

    }

}

- (void)connectionDidNotOpen;

{

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isConnecting"];

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isAuthenticating"];

    [self setValue:@"Connection failed" forKey:@"connectStatusFieldValue"];

}

- (void)connectionWasCanceled;

{

    BOOL wasAuthenticating = _isAuthenticating;

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isConnecting"];

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isAuthenticating"];

    if (wasAuthenticating == NO) {

        [self setValue:@"Connection canceled" forKey:@"connectStatusFieldValue"];

    }

    else {

        [self setValue:@"Authentication canceled" forKey:@"connectStatusFieldValue"];

    }

}

- (void)connectionAuthenticationNeeded;

{

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isConnecting"];

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isAuthenticating"];

    [self setValue:@"" forKey:@"connectStatusFieldValue"];

    [NSApp endSheet:_connectSheet returnCode:GridSampleLoginControllerAuthenticationNeededReturnCode];

    [self showAuthenticationNeededSheet];

}

- (void)connectionAuthenticationFailed;

{

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isConnecting"];

    [self setValue:[NSNumber numberWithBool:NO] forKey:@"isAuthenticating"];

    [self setValue:@"Authentication failed" forKey:@"connectStatusFieldValue"];

}

- (IBAction)connectSheetCancel:(id)sender;

{

    if (_isConnecting == YES) {

        [[[[self mainWindowController] connectionController] connection] close];

        [[self mainWindowController] connectionWasCanceled];

    }

    else {

        [NSApp endSheet:_connectSheet returnCode:GridSampleLoginControllerCancelReturnCode];

    }

}

- (IBAction)connectSheetOK:(id)sender;

{

    if ([_connectSheet makeFirstResponder:nil] == NO) {

        NSBeep();

        return;

    }

    [self setValue:[NSNumber numberWithBool:YES] forKey:@"isConnecting"];

    [self setValue:@"Connecting..." forKey:@"connectStatusFieldValue"];

    NSNetService *netService = [[[NSApp delegate] serviceBrowser] netServiceWithName:_connectFieldValue];

    GridSampleConnectionController *connectionController = [[self mainWindowController] connectionController];

    if (netService != nil) {

        [connectionController setConnectionWithNetServiceDomain:[netService domain] type:[netService type] name:[netService name] authenticator:nil];

    }

    else {

        [connectionController setConnectionWithHostname:_connectFieldValue portnumber:0 authenticator:nil];

    }

    [[connectionController connection] open];

}

- (IBAction)authenticationNeededSheetCancel:(id)sender;

{

    if (_isAuthenticating == YES) {

        [[[[self mainWindowController] connectionController] connection] close];

        [[self mainWindowController] connectionWasCanceled];

    }

    else {

        [NSApp endSheet:_authenticationNeededSheet returnCode:GridSampleLoginControllerCancelReturnCode];

    }

}

- (IBAction)authenticationNeededSheetOK:(id)sender;

{

    if ([_authenticationNeededSheet makeFirstResponder:nil] == NO) {

        NSBeep();

        return;

    }

    [self setValue:[NSNumber numberWithBool:YES] forKey:@"isAuthenticating"];

    [self setValue:@"Authenticating..." forKey:@"connectStatusFieldValue"];

    GridSampleConnectionController *connectionController = [[self mainWindowController] connectionController];

    if (_authenticationMatrixTag == GridSampleLoginControllerAuthenticationMethodSSOTag) {

        XGGSSAuthenticator *authenticator = [[[XGGSSAuthenticator alloc] init] autorelease];

        [authenticator setServicePrincipal:[connectionController servicePrincipal]];

        [[connectionController connection] setAuthenticator:authenticator];

        [[connectionController connection] open];

    }

    else if (_authenticationMatrixTag == GridSampleLoginControllerAuthenticationMethodPasswordTag) {

        XGTwoWayRandomAuthenticator *authenticator = [[[XGTwoWayRandomAuthenticator alloc] init] autorelease];

        [authenticator setUsername:@"one-xgrid-client"];

        [authenticator setPassword:_passwordFieldValue];

        [[connectionController connection] setAuthenticator:authenticator];

        [[connectionController connection] open];

    }

}

- (void)connectSheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo;

{

    [sheet orderOut:self];

    if (returnCode == GridSampleLoginControllerOKReturnCode) {

        // do nothing

    }

    else if (returnCode == GridSampleLoginControllerAuthenticationNeededReturnCode) {

        // do nothing

    }

    else {

        [NSApp terminate:self];

    }

}

- (void)authenticationNeededSheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo;

{

    [sheet orderOut:self];

    if (returnCode == GridSampleLoginControllerOKReturnCode) {

        // do nothing

    }

    else {

        [self showConnectSheet];

    }

}

- (void)connectionDidCloseAlertDidEnd:(NSAlert *)alert returnCode:(int)returnCode contextInfo:(void *)contextInfo;

{

    [self performSelector:@selector(showConnectSheet) withObject:nil afterDelay:0.0];

}

@end