/*

File: GridSampleConnectionController.m

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*/ 

#import "GridSampleConnectionController.h"

#import "GridSampleMainWindowController.h"

@interface GridSampleConnectionController (Private)

- (void)setConnection:(XGConnection *)connection;

- (void)setController:(XGController *)controller;

- (void)setMainWindowController:(GridSampleMainWindowController *)mainWindowController;

@end

@implementation GridSampleConnectionController

+ (id)connectionController;

{

    return [[[self alloc] init] autorelease];

}

- (id)init;

{

    self = [super init];

    if (self != nil) {

        [self setMainWindowController:[GridSampleMainWindowController mainWindowController]];

    }

    return self;

}

- (void)dealloc;

{

    [self setMainWindowController:nil];

    [self setConnection:nil];

    [self setController:nil];

    [super dealloc];

}

- (void)setConnectionWithNetServiceDomain:(NSString *)domain type:(NSString *)type name:(NSString *)name authenticator:(XGAuthenticator *)authenticator;

{

    _type = GridSampleConnectionControllerNetServiceType;

    NSNetService *netService = [[[NSNetService alloc] initWithDomain:domain type:type name:name] autorelease];

    XGConnection *connection = [[[XGConnection alloc] initWithNetService:netService] autorelease];

    [connection setAuthenticator:authenticator];

    XGController *controller = [[[XGController alloc] initWithConnection:connection] autorelease];

    [self setConnection:connection];

    [self setController:controller];

}

- (void)setConnectionWithHostname:(NSString *)hostname portnumber:(int)portnumber authenticator:(XGAuthenticator *)authenticator;

{

    _type = GridSampleConnectionControllerHostnameType;

    XGConnection *connection = [[[XGConnection alloc] initWithHostname:hostname portnumber:portnumber] autorelease];

    [connection setAuthenticator:authenticator];

    XGController *controller = [[[XGController alloc] initWithConnection:connection] autorelease];

    [self setConnection:connection];

    [self setController:controller];

}

#pragma mark *** Accessors ***

- (GridSampleConnectionControllerType)type;

{

    return _type;

}

- (NSString *)name;

{

    return [[self connection] name];

}

- (NSString *)servicePrincipal;

{

    NSString *servicePrincipal = [[self connection] servicePrincipal];

    if (servicePrincipal == nil) servicePrincipal = [NSString stringWithFormat:@"xgrid/%@", [self name]];

    return servicePrincipal;

}

- (XGConnection *)connection;

{

    return _connection;

}

- (XGController *)controller;

{

    return _controller;

}

- (GridSampleMainWindowController *)mainWindowController;

{

    return _mainWindowController;

}

#pragma mark *** Convenience methods ***

- (void)begin;

{

    [[[self mainWindowController] window] makeKeyAndOrderFront:self];

    [[self mainWindowController] performSelector:@selector(showConnectSheet) withObject:nil afterDelay:1.0];

}

#pragma mark *** Private methods ***

- (void)setConnection:(XGConnection *)connection;

{

    if (_connection != connection) {

        if ([_connection delegate] == self) {

            [_connection setDelegate:nil];

        }

        [_connection release];

        _connection = [connection retain];

        [_connection setDelegate:self];

    }

}

- (void)setController:(XGController *)controller;

{

    if (_controller != controller) {

        [_controller autorelease];

        _controller = [controller retain];

    }

}

- (void)setMainWindowController:(GridSampleMainWindowController *)mainWindowController;

{

    if (_mainWindowController != mainWindowController) {

        if ([_mainWindowController connectionController] == self) {

            [_mainWindowController setConnectionController:nil];

        }

        [_mainWindowController autorelease];

        _mainWindowController = [mainWindowController retain];

        [_mainWindowController setConnectionController:self];

    }

}

#pragma mark *** XGConnection delegate methods ***

- (void)connectionDidOpen:(XGConnection *)connection;

{

    _connectionDidOpen = YES;

    [[self mainWindowController] connectionDidOpen];

}

- (void)connectionDidClose:(XGConnection *)connection;

{

    // check for success

    if ([connection error] != nil && [[connection error] code] != 200) {

        // check for authentication errors

        if ([[connection error] code] == 530) {

            // authentication required; check for authenticator 

            if ([connection authenticator] == nil) {

                // no authenticator; request authentication from user

                [[self mainWindowController] connectionAuthenticationNeeded];

            }

            else {

                // authenticator; authentication wasn't sufficient

                [[self mainWindowController] connectionAuthenticationFailed];

            }

        }

        else if ([[connection error] code] == 535) {

            // authentication failure; show alert to user

            [[self mainWindowController] connectionAuthenticationFailed];

        }

        else {

            // unknown error; check if we opened

            if (_connectionDidOpen == NO) {

                // we never opened

                [[self mainWindowController] connectionDidNotOpen];

            }

            else {

                // we opened; this is a true close

                [[self mainWindowController] connectionDidClose];

            }

        }

    }

    else {

        [[self mainWindowController] connectionDidClose];

    }

    // the connection is not open

    _connectionDidOpen = NO;

}

@end