Synnefo » Pithos iOS Client

//

//  AddServerViewController.m

//  OpenStack

//

//  Created by Mike Mayo on 10/8/10.

//  The OpenStack project is provided under the Apache 2.0 license.

//

#import "AddServerViewController.h"

#import "OpenStackAccount.h"

#import "Image.h"

#import "Flavor.h"

#import "Server.h"

#import "UIViewController+Conveniences.h"

#import "ImagePickerViewController.h"

#import "UIColor+MoreColors.h"

#import "SimpleImagePickerViewController.h"

#import "Provider.h"

#import "AddServerPlugin.h"

#import "AddServerPluginHandler.h"

#import "ServersViewController.h"

#import "AccountManager.h"

#import "OpenStackRequest.h"

#import "LogEntryModalViewController.h"

#import "APILogEntry.h"

#import "RateLimit.h"

#import "RSTextFieldCell.h"

#import "OpenStackAppDelegate.h"

#import "AccountHomeViewController.h"

#import "ServerViewController.h"

#import "AccountHomeViewController.h"

#define kNodeCount 0

#define kNodeDetails 1

#define kName 0

#define kSize 1

#define kImageRow 2

// TODO: bring back passwords

/*

 Files

 <file injection ui, however that should work; pick from files synced from iTunes i guess. maybe object storage>

 --- third party section ---

    -- third party server create tools should be a plugin style, separate classes --

 [Chef Bootstrapped - on/off]

    run list

    <sub text from iPad>  Visit opscode.com/chef for more information.

    (perhaps load roles and recipes via API)

 [Puppet Bootstrapped - on/off]

    whatever puppet "plugin" needs

 */

@implementation AddServerViewController

@synthesize account, selectedImage, serversViewController, accountHomeViewController;

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {

    return (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) || (toInterfaceOrientation == UIInterfaceOrientationPortrait);

}

- (void)setNewSelectedImage:(Image *)image {

    self.selectedImage = image;

    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:2 inSection:1];

    //[self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];

    [self.tableView reloadData];

    [self.tableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone];

}

#pragma mark -

#pragma mark Button Handlers

- (void)saveButtonPressed:(id)sender {

    // validate required fields?  name isn't actually required; flavor and image are defaulted

    // populate the server(s) info, then pass the server along to all the plugins

    for (int i = 0; i < nodeCount; i++) {

        Server *server = [[Server alloc] init];

        if (nodeCount == 1) {

            server.name = nameTextField.text;

        } else {            

            if (nameTextField.text == nil || [nameTextField.text isEqualToString:@""]) {

                server.name = [NSString stringWithFormat:@"slice%i", i + 1];

            } else {

                server.name = [NSString stringWithFormat:@"%@%i", nameTextField.text, i + 1];

            }

        }

        server.flavor = [self.account.sortedFlavors objectAtIndex:flavorIndex];

        server.image = selectedImage;

        for (int i = 0; i < [plugins count]; i++) {

            id <AddServerPlugin> plugin = [plugins objectAtIndex:i];

            [plugin configureServer:&server];

        }

        // TODO: handle plugin validation and check personality file count

        //       perhaps via configureServer throwing an exception?

        [account.manager createServer:server];

        // now we need to register for the creation success and failure events.

        id success = [[NSNotificationCenter defaultCenter] addObserverForName:@"createServerSucceeded" object:server 

                                                                        queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notification)

        {

            successCount++;

            // insert the server into the account's sorted array

            NSMutableDictionary *servers = [[NSMutableDictionary alloc] initWithDictionary:self.account.servers];

            OpenStackRequest *request = [notification.userInfo objectForKey:@"request"];

            Server *createdServer = [request server];

            createdServer.flavor = [self.account.flavors objectForKey:createdServer.flavorId];

            createdServer.image = [self.account.images objectForKey:createdServer.imageId];

            [servers setObject:createdServer forKey:createdServer.identifier];

            self.account.servers = [NSMutableDictionary dictionaryWithDictionary:servers];

            [servers release];

            [self.account persist];

            // insert the server into the servers list table

            // using reloadData instead of insertRows to avoid race conditions

            serversViewController.tableView.allowsSelection = YES;

            serversViewController.tableView.scrollEnabled = YES;

            [serversViewController.tableView reloadData];

            if (nodeCount - successCount - failureCount == 0) {

                [serversViewController hideToolbarActivityMessage];

            } else {

                if (nodeCount - successCount - failureCount == 1) {

                    [serversViewController showToolbarActivityMessage:@"Creating 1 server..."];

                } else {

                    [serversViewController showToolbarActivityMessage:[NSString stringWithFormat:@"Creating %i servers...", nodeCount - successCount - failureCount]];

                }

            }

            if (failureCount + successCount == nodeCount) {

                [serversViewController hideToolbarActivityMessage];

                if (failureCount > 0) {

                    if (nodeCount == 1) {                        

                        [self alert:@"There was a problem creating your Cloud Server." request:[notification.userInfo objectForKey:@"request"]];

                    } else if (failureCount == nodeCount) {

                        [self alert:@"There was a problem creating your Cloud Servers. To see details for all failures, go to API Logs." request:[notification.userInfo objectForKey:@"request"]];

                    } else {

                        [self alert:[NSString stringWithFormat:@"There was a problem creating %i of your Cloud Servers. To see details for all failures, go to API Logs.", failureCount] request:[notification.userInfo objectForKey:@"request"]];

                    }

                }

            }

        }];

        id failure = [[NSNotificationCenter defaultCenter] addObserverForName:@"createServerFailed" object:server 

                                                                      queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notification)

        {

            failureCount++;

            // if fail count + success count == node count, show an alert that

            // says how many failed.  if fail count > 1, tell the user to view

            // API Logs to see all of the failures.  Details button should show

            // the first failure

            if (nodeCount - successCount - failureCount == 0) {

                [serversViewController hideToolbarActivityMessage];

            } else {

                if (nodeCount - successCount - failureCount == 1) {

                    [serversViewController showToolbarActivityMessage:@"Creating 1 server..."];

                } else {

                    [serversViewController showToolbarActivityMessage:[NSString stringWithFormat:@"Creating %i servers...", nodeCount - successCount - failureCount]];

                }

            }

            if (failureCount + successCount == nodeCount) {

                [serversViewController hideToolbarActivityMessage];

                if (failureCount > 0) {

                    if (nodeCount == 1) {

                        [self alert:@"There was a problem creating your Cloud Server." request:[notification.userInfo objectForKey:@"request"]];

                    } else if (failureCount == nodeCount) {

                        [self alert:@"There was a problem creating your Cloud Servers. To see details for all failures, go to API Logs." request:[notification.userInfo objectForKey:@"request"]];

                    } else {

                        [self alert:[NSString stringWithFormat:@"There was a problem creating %i of your Cloud Server. To see details for all failures, go to API Logs.", failureCount] request:[notification.userInfo objectForKey:@"request"]];

                    }

                }

            }

        }];

        [createServerObservers addObject:success];

        [createServerObservers addObject:failure];

        [server release];

    }

    // since UIProgressBar looks like crap on a non-default tint UIToolbar,

    // we'll just use text and count down as the servers are created

    if (nodeCount == 1) {

        [serversViewController showToolbarActivityMessage:@"Creating server..."];

    } else {

        [serversViewController showToolbarActivityMessage:[NSString stringWithFormat:@"Creating %i servers...", nodeCount]];

    }

    [self dismissModalViewControllerAnimated:YES];

}

#pragma mark -

#pragma mark View lifecycle

- (void)viewDidLoad {

    [super viewDidLoad];

    successCount = 0;

    failureCount = 0;

    nodeCount = 1;

    self.navigationItem.title = @"Add Server";

    serverCountSlider = [[UISlider alloc] init];

    flavorSlider = [[UISlider alloc] init];

    [self addCancelButton];

    [self addSaveButton];

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

        nameTextField = [[UITextField alloc] initWithFrame:CGRectMake(98.0, 13.0, 400.0, 24.0)];

    } else {

        nameTextField = [[UITextField alloc] initWithFrame:CGRectMake(79.0, 13.0, 222.0, 24.0)];

    }

    nameTextField.delegate = self;

    nameTextField.font = [UIFont systemFontOfSize:17.0];

    nameTextField.textColor = [UIColor value1DetailTextLabelColor];

    nameTextField.backgroundColor = [UIColor clearColor];

    nameTextField.textAlignment = UITextAlignmentRight;

    nameTextField.returnKeyType = UIReturnKeyDone;

    nameTextField.autocorrectionType = UITextAutocorrectionTypeNo;

    nameTextField.autocapitalizationType = UITextAutocapitalizationTypeNone;

    nameTextField.placeholder = @"Ex: web-server";

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

        serverNumbersLabel = [[UILabel alloc] initWithFrame:CGRectMake(40.0, 15.5, 458.0, 18.0)];

    } else {

        serverNumbersLabel = [[UILabel alloc] initWithFrame:CGRectMake(21.0, 15.5, 280.0, 18.0)];

    }

    serverNumbersLabel.font = [UIFont systemFontOfSize:17.0];

    serverNumbersLabel.textColor = [UIColor value1DetailTextLabelColor];

    serverNumbersLabel.backgroundColor = [UIColor clearColor];

    serverNumbersLabel.textAlignment = UITextAlignmentRight;

    serverNumbersLabel.text = @"";    

    NSMutableArray *allPlugins = [[NSMutableArray alloc] initWithArray:[AddServerPluginHandler plugins]];

    for (id <AddServerPlugin> plugin in [AddServerPluginHandler plugins]) {

        if ([plugin pluginShouldAppear]) {

            [plugin pluginWillAppear];

        } else {

            [allPlugins removeObject:plugin];

        }

    }

    plugins = [[NSArray alloc] initWithArray:allPlugins];

    [allPlugins release];

    createServerObservers = [[NSMutableArray alloc] init];

}

- (void)viewDidUnload {

    for (id observer in createServerObservers) {

        [[NSNotificationCenter defaultCenter] removeObserver:observer];

    }

}

- (void)viewWillAppear:(BOOL)animated {

    [super viewWillAppear:animated];

    RateLimit *limit = [OpenStackRequest createServerLimit:self.account];

    maxServers = limit.remaining;

    // load defaults for flavor and image.  if no default set yet, use the smallest flavor

    // and the newest Ubuntu

    if (account.lastUsedFlavorId == 0) {

        flavorIndex = 0;

        account.lastUsedFlavorId = [[self.account.sortedFlavors objectAtIndex:0] identifier];

    } else {

        for (int i = 0; i < [self.account.sortedFlavors count]; i++) {

            Flavor *flavor = [self.account.sortedFlavors objectAtIndex:i];

            if (flavor.identifier == account.lastUsedFlavorId) {

                flavorIndex = i;

                flavorSlider.value = ((flavorIndex * 1.0) / ([self.account.sortedFlavors count] - 1));

                flavorLabel.text = [NSString stringWithFormat:@"%i MB RAM, %i GB Disk", flavor.ram, flavor.disk];

            }

        }

    }

    if (account.lastUsedImageId == 0) {

        // select the newest ubuntu as a default.  if there's not a newest ubuntu, select the 

        // first image id

        NSMutableArray *ubuntus = [[NSMutableArray alloc] init];

        NSArray *sortedImages = [self.account sortedImages];

        for (int i = 0; i < [sortedImages count]; i++) {

            Image *image = [sortedImages objectAtIndex:i];

            if ([image respondsToSelector:@selector(logoPrefix)] && [[image logoPrefix] isEqualToString:@"ubuntu"]) {

                [ubuntus addObject:image];

            }

        }

        if ([ubuntus count] > 0) {

            selectedImage = [ubuntus lastObject];

        } else {

            selectedImage = [sortedImages objectAtIndex:0];

        }

        account.lastUsedImageId = selectedImage.identifier;

        [ubuntus release];

    } else {

        selectedImage = [self.account.images objectForKey:account.lastUsedImageId];

    }

    [self.tableView reloadData]; // force the image name to show up

}

#pragma mark -

#pragma mark Table view data source

- (CGFloat)findLabelHeight:(NSString*)text font:(UIFont *)font {

    CGSize textLabelSize = CGSizeMake(260.0, 9000.0f);

    CGSize stringSize = [text sizeWithFont:font constrainedToSize:textLabelSize lineBreakMode:UILineBreakModeWordWrap];

    return stringSize.height;

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

    if (indexPath.section == kNodeCount) {

        return tableView.rowHeight + flavorSlider.frame.size.height + 3.0;

    } else if (indexPath.section == kNodeDetails) {

        if (indexPath.row == kSize) {

            return tableView.rowHeight + serverCountSlider.frame.size.height + 3.0;

        } else if (indexPath.row == kImageRow) {

            CGSize size = [selectedImage.name sizeWithFont:[UIFont systemFontOfSize:18.0] constrainedToSize:CGSizeMake(220.0, 9000.0f) lineBreakMode:UILineBreakModeWordWrap];

            CGFloat result = size.height;

            if (result > 22.0) {

                result += 22.0;

            }

            return MAX(tableView.rowHeight, result);

        } else {

            return tableView.rowHeight;

        }

    } else {

        return tableView.rowHeight;

    }

}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    // Return the number of sections.

    return 2 + [plugins count];

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    // Return the number of rows in the section.

    if (section == kNodeCount) {

        return 1;

    } else if (section == kNodeDetails) {

        return 3;

    } else {

        id <AddServerPlugin> plugin = [plugins objectAtIndex:section - 2];

        return [plugin tableView:tableView numberOfRowsInSection:section];

    }

}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {

    return @"";

}

- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section {

    if (section == kNodeCount) {

        if (maxServers == 1) {

            return @"With your current API rate limit, you can create one node at a time.";

        } else {

            //return [NSString stringWithFormat:@"With your current API rate limit, you can create up to %i Cloud Servers at a time.", maxServers];

            return [NSString stringWithFormat:@"With your current API rate limit, you can create up to %i servers at a time.", maxServers];

        }

    } else if (section == kNodeDetails) {

        return [self.account.provider isRackspace] ? @"Please refer to rackspace.com/cloud for Cloud Servers pricing." : @"";

    } else {

        id <AddServerPlugin> plugin = [plugins objectAtIndex:section - 2];

        return [plugin tableView:tableView titleForFooterInSection:section];

    }

}

- (void)serverCountSliderMoved:(id)sender {

    nodeCount = (NSInteger)(serverCountSlider.value * maxServers);

    if (nodeCount == 0 || nodeCount == 1) {

        nodeCount = 1;

        serverCountLabel.text = @"1 server";

        serverNumbersLabel.text = @"";

        nameTextField.placeholder = @"Ex: web-server";

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            nameTextField.frame = CGRectMake(98.0, 13.0, 400.0, 24.0);

        } else {

            nameTextField.frame = CGRectMake(79.0, 13.0, 222.0, 24.0);

        }

    } else {

        serverCountLabel.text = [NSString stringWithFormat:@"%i servers", nodeCount];

        if (nodeCount == 2) {

            serverNumbersLabel.text = @"[1,2]";

        } else {

            serverNumbersLabel.text = [NSString stringWithFormat:@"[1..%i]", nodeCount];

        }

        nameTextField.placeholder = @"";

        // move the text field to make room for the numbers label

        CGSize size = [serverNumbersLabel.text sizeWithFont:serverNumbersLabel.font constrainedToSize:CGSizeMake(280.0, 900.0f)];        

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            nameTextField.frame = CGRectMake(98.0, 13.0, 400.0 - size.width, 24.0);

        } else {

            nameTextField.frame = CGRectMake(79.0, 13.0, 222.0 - size.width, 24.0);

        }

    }

}

- (UITableViewCell *)tableView:(UITableView *)tableView serverCountCellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"ServerCountCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];

        cell.selectionStyle = UITableViewCellSelectionStyleNone;

        UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(20.0, 13.0, 280.0, 20.0)];

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            textLabel.frame = CGRectMake(41.0, 13.0, 458.0, 20.0);

        }

        textLabel.font = [UIFont boldSystemFontOfSize:17.0];

        textLabel.text = @"Cloud Servers";

        textLabel.textColor = [UIColor blackColor];

        textLabel.backgroundColor = [UIColor clearColor];

        [cell addSubview:textLabel];

        [textLabel release];

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            serverCountSlider.frame = CGRectMake(41.0, 38.0, 458.0, serverCountSlider.frame.size.height);

        } else {

            serverCountSlider.frame = CGRectMake(20.0, 38.0, 280.0, serverCountSlider.frame.size.height);

        }

        [serverCountSlider addTarget:self action:@selector(serverCountSliderMoved:) forControlEvents:UIControlEventValueChanged];

        [cell addSubview:serverCountSlider];

        serverCountLabel = [[UILabel alloc] initWithFrame:CGRectMake(20.0, 14.0, 280.0, 18.0)];

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            serverCountLabel.frame = CGRectMake(41.0, 14.0, 458.0, 18.0);

        }

        serverCountLabel.font = [UIFont systemFontOfSize:17.0];

        serverCountLabel.textColor = [UIColor value1DetailTextLabelColor];

        serverCountLabel.backgroundColor = [UIColor clearColor];

        serverCountLabel.textAlignment = UITextAlignmentRight;

        [cell addSubview:serverCountLabel];

    }

    if (nodeCount == 1) {

        serverCountLabel.text = @"1 server";

    } else {

        serverCountLabel.text = [NSString stringWithFormat:@"%i servers", nodeCount];

    }

    return cell;

}

- (void)flavorSliderFinished:(id)sender {

    flavorIndex = MIN([self.account.sortedFlavors count] - 1, (NSInteger)[self.account.sortedFlavors count] * flavorSlider.value);

    Flavor *flavor = [self.account.sortedFlavors objectAtIndex:flavorIndex];

    flavorLabel.text = [NSString stringWithFormat:@"%i MB RAM, %i GB Disk", flavor.ram, flavor.disk];

    self.account.lastUsedFlavorId = flavor.identifier;    

    NSMutableArray *accountArr = [NSMutableArray arrayWithArray:[OpenStackAccount accounts]];

    for (int i = 0; i < [accountArr count]; i++) {

        OpenStackAccount *anAccount = [accountArr objectAtIndex:i];

        if ([self.account.uuid isEqualToString:anAccount.uuid]) {            

            [accountArr replaceObjectAtIndex:i withObject:self.account];

        }

    }

    [self.account persist];

}

- (void)flavorSliderMoved:(id)sender {

    flavorIndex = MIN([self.account.sortedFlavors count] - 1, (NSInteger)[self.account.sortedFlavors count] * flavorSlider.value);

    Flavor *flavor = [self.account.sortedFlavors objectAtIndex:flavorIndex];

    flavorLabel.text = [NSString stringWithFormat:@"%i MB RAM, %i GB Disk", flavor.ram, flavor.disk];

    self.account.lastUsedFlavorId = flavor.identifier;

}

- (UITableViewCell *)tableView:(UITableView *)tableView sizeCellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"SizeCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];

        cell.selectionStyle = UITableViewCellSelectionStyleNone;

        UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(20.0, 13.0, 280.0, 20.0)];

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            textLabel.frame = CGRectMake(41.0, 13.0, 458.0, 20.0);

        }

        textLabel.font = [UIFont boldSystemFontOfSize:17.0];

        textLabel.text = @"Size";

        textLabel.textColor = [UIColor blackColor];

        textLabel.backgroundColor = [UIColor clearColor];

        [cell addSubview:textLabel];

        [textLabel release];

        flavorSlider.frame = CGRectMake(20.0, 38.0, 280.0, flavorSlider.frame.size.height);

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            flavorSlider.frame = CGRectMake(41.0, 38.0, 458.0, flavorSlider.frame.size.height);

        }

        [flavorSlider addTarget:self action:@selector(flavorSliderMoved:) forControlEvents:UIControlEventValueChanged];

        [flavorSlider addTarget:self action:@selector(flavorSliderFinished:) forControlEvents:UIControlEventTouchUpInside];

        [cell addSubview:flavorSlider];

        flavorLabel = [[UILabel alloc] initWithFrame:CGRectMake(20.0, 14.0, 280.0, 18.0)];

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            flavorLabel.frame = CGRectMake(41.0, 14.0, 458.0, 18.0);

        }

        flavorLabel.font = [UIFont systemFontOfSize:17.0];

        flavorLabel.textColor = [UIColor value1DetailTextLabelColor];

        flavorLabel.backgroundColor = [UIColor clearColor];

        flavorLabel.textAlignment = UITextAlignmentRight;

        [cell addSubview:flavorLabel];

    }

    Flavor *flavor = [self.account.sortedFlavors objectAtIndex:flavorIndex];

    flavorLabel.text = [NSString stringWithFormat:@"%i MB RAM, %i GB Disk", flavor.ram, flavor.disk];

    return cell;

}

- (UITableViewCell *)tableView:(UITableView *)tableView nameCellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"NameCell";    

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];

        cell.selectionStyle = UITableViewCellSelectionStyleNone;

        cell.textLabel.text = @"Name";

        [cell addSubview:nameTextField];

        [cell addSubview:serverNumbersLabel];

    }    

    return cell;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    if (indexPath.section == kNodeCount) {

        return [self tableView:tableView serverCountCellForRowAtIndexPath:indexPath];

    } else if (indexPath.section == kNodeDetails) {

        if (indexPath.row == kName) {

            return [self tableView:tableView nameCellForRowAtIndexPath:indexPath];

        } else if (indexPath.row == kSize) {

            return [self tableView:tableView sizeCellForRowAtIndexPath:indexPath];

        } else {

            static NSString *CellIdentifier = @"Cell";

            UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

            if (cell == nil) {

                cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];

                cell.textLabel.numberOfLines = 0;       

                cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

                cell.selectionStyle = UITableViewCellSelectionStyleBlue;

                cell.detailTextLabel.numberOfLines = 0;

                cell.detailTextLabel.lineBreakMode = UILineBreakModeWordWrap;

                cell.detailTextLabel.textAlignment = UITextAlignmentLeft;

            }

            cell.textLabel.text = @"Image";

            cell.detailTextLabel.text = self.selectedImage.name;

            return cell;

        }

    } else {

        id <AddServerPlugin> plugin = [plugins objectAtIndex:indexPath.section - 2];

        return [plugin tableView:tableView cellForRowAtIndexPath:indexPath];

    }

}

#pragma mark -

#pragma mark Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    if (indexPath.section == kNodeDetails && indexPath.row == kImageRow) {        

        SimpleImagePickerViewController *vc = [[SimpleImagePickerViewController alloc] initWithNibName:@"SimpleImagePickerViewController" bundle:nil];

        vc.mode = kModeChooseImage;

        vc.account = self.account;

        vc.selectedImageId = selectedImage.identifier;

        vc.delegate = self;

        [self.navigationController pushViewController:vc animated:YES];

        [vc release];

    }

}

#pragma mark -

#pragma mark Text Field Delegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField {

    [textField resignFirstResponder];

    return NO;

}

#pragma mark -

#pragma mark Error Alert

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {

    if (buttonIndex == 1) { // details button

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            logEntryModalViewController.modalPresentationStyle = UIModalPresentationFormSheet;

        }                

        [self.serversViewController presentModalViewController:logEntryModalViewController animated:YES];

        [logEntryModalViewController release];

    }

}

- (void)alert:(NSString *)message request:(OpenStackRequest *)request {

    if (request.responseStatusCode == 0) {

        [self failOnBadConnection];

    } else {

        logEntryModalViewController = [[LogEntryModalViewController alloc] initWithNibName:@"LogEntryModalViewController" bundle:nil];

        logEntryModalViewController.logEntry = [[[APILogEntry alloc] initWithRequest:request] autorelease];

        logEntryModalViewController.requestDescription = [logEntryModalViewController.logEntry requestDescription];

        logEntryModalViewController.responseDescription = [logEntryModalViewController.logEntry responseDescription];

        logEntryModalViewController.requestMethod = [logEntryModalViewController.logEntry requestMethod];

        logEntryModalViewController.url = [[logEntryModalViewController.logEntry url] description];

        // present an alert with a Details button to show the API log entry

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:message delegate:self cancelButtonTitle:@"OK" otherButtonTitles:@"Details", nil];

        [alert show];

        [alert release];        

    }

}

#pragma mark -

#pragma mark Memory management

- (void)dealloc {

    [account release];

    [serverCountSlider release];

    [flavorSlider release];

    [nameTextField release];

    [serverNumbersLabel release];

    [selectedImage release];

    [plugins release];

    [serversViewController release];

    [createServerObservers release];

    [accountHomeViewController release];

    [super dealloc];

}

@end