/*

 Bookmark editor controller

 Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz

 This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. 

 If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

 */

#import "BookmarkEditorController.h"

#import "Bookmark.h"

#import "Utils.h"

#import "ScreenSelectionController.h"

#import "PerformanceEditorController.h"

#import "CredentialsEditorController.h"

#import "AdvancedBookmarkEditorController.h"

#import "BlockAlertView.h"

@implementation BookmarkEditorController

@synthesize delegate;

#define SECTION_SERVER 0

#define SECTION_CREDENTIALS 1

#define SECTION_SETTINGS 2

#define SECTION_COUNT 3

#pragma mark -

#pragma mark Initialization	

- (id)initWithBookmark:(ComputerBookmark*)bookmark

{

    if ((self = [super initWithStyle:UITableViewStyleGrouped])) 

	{

		// set additional settings state according to bookmark data

        if ([[bookmark uuid] length] == 0)

            _bookmark = [bookmark copy];

        else

            _bookmark = [bookmark copyWithUUID];

        _params = [_bookmark params];

        _display_server_settings = YES;

    }

    return self;

}

#pragma mark -

#pragma mark View lifecycle

- (void)viewDidLoad {

    [super viewDidLoad];

    // replace back button with a custom handler that checks if the required bookmark settings were specified

    UIBarButtonItem* saveButton = [[[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Save", @"Save Button title") style:UIBarButtonItemStyleDone target:self action:@selector(handleSave:)] autorelease];

    UIBarButtonItem* cancelButton = [[[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Cancel", @"Cancel Button title") style:UIBarButtonItemStyleBordered target:self action:@selector(handleCancel:)] autorelease];

    [[self navigationItem] setLeftBarButtonItem:cancelButton];    

    [[self navigationItem] setRightBarButtonItem:saveButton];    

}

- (void)viewWillAppear:(BOOL)animated {

    [super viewWillAppear:animated];

    // we need to reload the table view data here to have up-to-date data for the 

    // advanced settings accessory items (like for resolution/color mode settings)

    [[self tableView] reloadData];

}

// Override to allow orientations other than the default portrait orientation.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    return YES;

}

#pragma mark -

#pragma mark Table view data source

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

    // Return the number of sections.

    return SECTION_COUNT;

}

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

    // Return the number of rows in the section.

	switch (section)

	{

		case SECTION_SERVER: // server settings

			return (_display_server_settings ? 3 : 0);

		case SECTION_CREDENTIALS: // credentials

			return 1;

		case SECTION_SETTINGS: // session settings

			return 3;

		default:

			break;

	}

    return 0;

}

// set section headers

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

{

	switch(section)

	{

		case SECTION_SERVER:

			return (_display_server_settings ? NSLocalizedString(@"Host", @"'Host': host settings header") : nil);

		case SECTION_CREDENTIALS:

			return NSLocalizedString(@"Credentials", @"'Credentials': credentials settings header");

		case SECTION_SETTINGS:

			return NSLocalizedString(@"Settings", @"'Session Settings': session settings header");

	}

	return @"unknown";

}

// Customize the appearance of table view cells.

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

	// determine the required cell type

	NSString* cellType = nil;

	switch([indexPath section])

	{

		case SECTION_SERVER:

            cellType = TableCellIdentifierText;

			break;

        case SECTION_CREDENTIALS:

            cellType = TableCellIdentifierSelection;

            break;

		case SECTION_SETTINGS: // settings

			{

				switch([indexPath row]) 

				{

					case 0:	// screen/color depth

						cellType = TableCellIdentifierSelection;

						break;

					case 1:	// performance settings

                    case 2: // advanced settings

						cellType = TableCellIdentifierSubEditor;

						break;		

					default:						

						break;

				}

			}

			break;			

        default:

            break;

	}	

	NSAssert(cellType != nil, @"Couldn't determine cell type");	

	// get the table view cell

	UITableViewCell *cell = [self tableViewCellFromIdentifier:cellType];

	NSAssert(cell, @"Invalid cell");	

	// set cell values

	switch([indexPath section]) 

	{

		// server settings

		case SECTION_SERVER:

			[self initServerSettings:indexPath cell:cell];

			break;

		// credentials

		case SECTION_CREDENTIALS:

			[self initCredentialSettings:indexPath cell:cell];

			break;

		// session settings

		case SECTION_SETTINGS:

			[self initSettings:indexPath cell:cell];

			break;

		default:

			break;

	}	

    return cell;

}

// updates server settings in the UI

- (void)initServerSettings:(NSIndexPath*)indexPath cell:(UITableViewCell*)cell

{

    EditTextTableViewCell* textCell = (EditTextTableViewCell*)cell;

	[[textCell textfield] setTag:GET_TAG_FROM_PATH(indexPath)];

	switch([indexPath row]) 

	{

		case 0:

			[[textCell label] setText:NSLocalizedString(@"Label", @"'Label': Bookmark label")];

			[[textCell textfield] setText:[_bookmark label]];

            [[textCell textfield] setPlaceholder:NSLocalizedString(@"not set", @"not set placeholder")];

			break;

		case 1:

			[[textCell label] setText:NSLocalizedString(@"Host", @"'Host': Bookmark hostname")];

			[[textCell textfield] setText:[_params StringForKey:@"hostname"]];

            [[textCell textfield] setPlaceholder:NSLocalizedString(@"not set", @"not set placeholder")];

			break;

		case 2:

			[[textCell label] setText:NSLocalizedString(@"Port", @"'Port': Bookmark port")];

			[[textCell textfield] setText:[NSString stringWithFormat:@"%d", [_params intForKey:@"port"]]];

            [[textCell textfield] setKeyboardType:UIKeyboardTypeNumberPad];

			break;

		default:

			NSLog(@"Invalid row index in settings table!");

			break;

	}	

    [self adjustEditTextTableViewCell:textCell];

}

// updates credentials in the UI

- (void)initCredentialSettings:(NSIndexPath*)indexPath cell:(UITableViewCell*)cell

{

    EditSelectionTableViewCell* selCell = (EditSelectionTableViewCell*)cell;

	switch(indexPath.row) 

	{

		case 0:

            [[selCell label] setText:NSLocalizedString(@"Credentials", @"'Credentials': Bookmark credentials")];

            [[selCell selection] setText:[_params StringForKey:@"username"]];

			break;

		default:

			NSLog(@"Invalid row index in settings table!");

			break;

	}

}

// updates session settings in the UI

- (void)initSettings:(NSIndexPath*)indexPath cell:(UITableViewCell*)cell

{	

	switch(indexPath.row) 

	{

		case 0:

        {

            EditSelectionTableViewCell* selCell = (EditSelectionTableViewCell*)cell;

            [[selCell label] setText:NSLocalizedString(@"Screen", @"'Screen': Bookmark Screen settings")];

            NSString* resolution = ScreenResolutionDescription([_params intForKey:@"screen_resolution_type"], [_params intForKey:@"width"], [_params intForKey:@"height"]);

            int colorBits = [_params intForKey:@"colors"];

            [[selCell selection] setText:[NSString stringWithFormat:@"%@@%d", resolution, colorBits]];

            break;

        }            

		case 1:

        {

            EditSubEditTableViewCell* editCell = (EditSubEditTableViewCell*)cell;

            [[editCell label] setText:NSLocalizedString(@"Performance", @"'Performance': Bookmark Performance Settings")];

            break;

        }			

		case 2:

        {

            EditSubEditTableViewCell* editCell = (EditSubEditTableViewCell*)cell;

            [[editCell label] setText:NSLocalizedString(@"Advanced", @"'Advanced': Bookmark Advanced Settings")];

            break;

        }			

		default:

			NSLog(@"Invalid row index in settings table!");

			break;

	}			

}

#pragma mark -

#pragma mark Table view delegate

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

    UIViewController* viewCtrl = nil;

    // determine view

    switch([indexPath section])

    {

        case SECTION_CREDENTIALS:

        {

            if ([indexPath row] == 0)

                viewCtrl = [[[CredentialsEditorController alloc] initWithBookmark:_bookmark] autorelease];

            break;

        }

        case SECTION_SETTINGS:

        {            

            switch ([indexPath row])

            {

                case 0:

                    viewCtrl = [[[ScreenSelectionController alloc] initWithConnectionParams:_params] autorelease];

                    break;

                case 1:

                    viewCtrl = [[[PerformanceEditorController alloc] initWithConnectionParams:_params] autorelease];

                    break;    

                case 2:

                    viewCtrl = [[[AdvancedBookmarkEditorController alloc] initWithBookmark:_bookmark] autorelease];

                    break;

                default:

                    break;

            }            

            break;

        }            

    }

    // display view

    if(viewCtrl)

        [[self navigationController] pushViewController:viewCtrl animated:YES];

}

#pragma mark -

#pragma mark Text Field delegate

- (BOOL)textFieldShouldReturn:(UITextField*)textField

{

	[textField resignFirstResponder];

	return NO;

}

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField

{

	switch(textField.tag)

	{

		// update server settings

		case GET_TAG(SECTION_SERVER, 0):

			[_bookmark setLabel:[textField text]];

			break;

		case GET_TAG(SECTION_SERVER, 1):

			[_params setValue:[textField text] forKey:@"hostname"];

			break;

		case GET_TAG(SECTION_SERVER, 2):

			[_params setInt:[[textField text] intValue] forKey:@"port"];

			break;

		default:

			break;

	}

	return YES;

}

#pragma mark -

#pragma mark Action Handlers

- (void)handleSave:(id)sender

{

    // resign any first responder (so that we finish editing any bookmark parameter that might be currently edited)

    [[self view] endEditing:NO];

    // verify that bookmark is complete (only for manual bookmarks)

    if ([[_bookmark label] length] == 0 || [[_params StringForKey:@"hostname"] length] == 0 || [_params intForKey:@"port"] == 0)

    {

        BlockAlertView* alertView = [BlockAlertView alertWithTitle:NSLocalizedString(@"Cancel without saving?", @"Incomplete bookmark error title") message:NSLocalizedString(@"Press 'Cancel' to abort!\nPress 'Continue' to specify the required fields!", @"Incomplete bookmark error message")];

        [alertView setCancelButtonWithTitle:NSLocalizedString(@"Cancel", @"Cancel Button") block:^{

            // cancel bookmark editing and return to previous view controller

            [[self navigationController] popViewControllerAnimated:YES];

        }];

        [alertView addButtonWithTitle:NSLocalizedString(@"Continue", @"Continue Button") block:nil];

        [alertView show];

        return;

    }

    // commit bookmark

    if ([[self delegate] respondsToSelector:@selector(commitBookmark:)])

        [[self delegate] commitBookmark:_bookmark];

    // return to previous view controller

    [[self navigationController] popViewControllerAnimated:YES];

}

- (void)handleCancel:(id)sender

{

    // return to previous view controller

    [[self navigationController] popViewControllerAnimated:YES];    

}

#pragma mark -

#pragma mark Memory management

- (void)didReceiveMemoryWarning {

    // Releases the view if it doesn't have a superview.

    [super didReceiveMemoryWarning];

    // Relinquish ownership any cached data, images, etc that aren't in use.

}

- (void)dealloc {

    [super dealloc];

    [_bookmark autorelease];

}

@end