//
//  OpenStackViewController.m
//  OpenStack
//
//  Created by Mike Mayo on 10/21/10.
//  The OpenStack project is provided under the Apache 2.0 license.
//

#import "OpenStackViewController.h"
#import "OpenStackAccount.h"
#import "UIViewController+Conveniences.h"
#import "APILogEntry.h"
#import "AnimatedProgressView.h"

@implementation OpenStackViewController

@synthesize toolbar;

#pragma mark - View lifecycle

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) || (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}

- (void)viewDidLoad {
    [super viewDidLoad];
    if (self.navigationController.navigationBar) {
        if ([UIDevice currentDevice].userInterfaceIdiom != UIUserInterfaceIdiomPad) {
            self.toolbar.tintColor = self.navigationController.navigationBar.tintColor;
            self.toolbar.translucent = self.navigationController.navigationBar.translucent;
            self.toolbar.opaque = self.navigationController.navigationBar.opaque;
            self.toolbar.barStyle = self.navigationController.navigationBar.barStyle;
        } else {
            self.toolbar.translucent = NO;
            self.toolbar.opaque = NO;            
        }
    }
}

#pragma mark - Internal

- (UILabel *)toolbarLabelWithText:(NSString *)text resize:(BOOL)resize {
    if (!toolbarLabel) {
        UIFont *font = [UIFont boldSystemFontOfSize:12.0];
        CGSize stringSize = [text sizeWithFont:font constrainedToSize:CGSizeMake(226.0, 20.0f) lineBreakMode:UILineBreakModeTailTruncation];
        toolbarLabel = [[UILabel alloc] initWithFrame:CGRectMake(10.0, 12.0, stringSize.width, 20.0)];
        toolbarLabel.textColor = [UIColor whiteColor];
        toolbarLabel.textAlignment = UITextAlignmentLeft;
        toolbarLabel.font = font;
        toolbarLabel.backgroundColor = [UIColor clearColor];
        toolbarLabel.shadowOffset = CGSizeMake(0, -1.0);
        toolbarLabel.shadowColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.4];
    } else if (resize) {
        UIFont *font = [UIFont boldSystemFontOfSize:12.0];
        CGSize stringSize = [text sizeWithFont:font constrainedToSize:CGSizeMake(226.0, 20.0f) lineBreakMode:UILineBreakModeTailTruncation];
        [toolbarLabel setFrame:CGRectMake(10.0, 12.0, stringSize.width, 20.0)];
    }
    toolbarLabel.text = text;
    return toolbarLabel;
}

#pragma mark - Actions

- (void)showToolbarInfoMessage:(NSString *)text {
    // Hide activity message if showing.
    [self hideToolbarActivityMessage];
    if (!text || !text.length) {
        // If no text provided, hide info message if showing.
        [self hideToolbarInfoMessage];
    } else if (toolbarInfoMessageVisible) {
        // If info message already showing, just update label.
        // XXX what if new text is larger?
        [self toolbarLabelWithText:text resize:NO];
    } else {
        // Else create new toolbar item.
        toolbarLabelItem = [[UIBarButtonItem alloc] initWithCustomView:[self toolbarLabelWithText:text resize:NO]];
        NSMutableArray *toolbarItems = [NSMutableArray arrayWithArray:toolbar.items];
        [toolbarItems insertObject:toolbarLabelItem atIndex:2];
        toolbar.items = toolbarItems;
        toolbarInfoMessageVisible = YES;
    }
}

- (void)showToolbarActivityMessage:(NSString *)text progress:(BOOL)hasProgress {
    // Hide info message if showing.
    [self hideToolbarInfoMessage];
    if (!text) {
        // If no text provided, hide activity message if showing.
        // Empty text is allowed, just to show the activity indicator and/or progress.
        [self hideToolbarActivityMessage];
    } else if (toolbarActivityMessageVisible) {
        // If activity message already showing, just update label.
        [self toolbarLabelWithText:text resize:YES];
    } else {
        // Else create new toolbar item.
        [self toolbarLabelWithText:text resize:YES];        
        NSMutableArray *toolbarItems = [NSMutableArray arrayWithArray:toolbar.items];
        
        if (hasProgress) {
            toolbarLabel.frame = CGRectMake(0.0, 2.0, 185.0, 20.0);
            toolbarLabel.textAlignment = UITextAlignmentCenter;
            
            UIView *labelWithProgress = [[[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 185.0, 40.0)] autorelease];
            [labelWithProgress addSubview:toolbarLabel];
            if (!toolbarProgressView) {
                toolbarProgressView = [[AnimatedProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleBar];
                toolbarProgressView.frame = CGRectMake(0.0, 24.0, 185.0, 10.0);
            }
            [labelWithProgress addSubview:toolbarProgressView];
            toolbarLabelItem = [[UIBarButtonItem alloc] initWithCustomView:labelWithProgress];
            
            [toolbarProgressView setProgress:0.40 animated:YES];
            
            [toolbarItems insertObject:toolbarLabelItem atIndex:1];
        } else {
            toolbarActivityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
            toolbarActivityIndicatorView.frame = CGRectMake(10.0, 12.0, 20.0, 20.0);
            [toolbarActivityIndicatorView startAnimating];
            
            toolbarActivityIndicatorItem = [[UIBarButtonItem alloc] initWithCustomView:toolbarActivityIndicatorView];
            toolbarLabelItem = [[UIBarButtonItem alloc] initWithCustomView:toolbarLabel];
            
            if (toolbarItems.count > 2) {
                [toolbarItems insertObject:toolbarActivityIndicatorItem atIndex:2];
                [toolbarItems insertObject:toolbarLabelItem atIndex:3];
            } else {
                [toolbarItems insertObject:toolbarActivityIndicatorItem atIndex:1];
                [toolbarItems insertObject:toolbarLabelItem atIndex:2];
            }
        }
        
        toolbar.items = toolbarItems;
        toolbarActivityMessageVisible = YES;
    }    
}

- (void)showToolbarActivityMessage:(NSString *)text {
    [self showToolbarActivityMessage:text progress:NO];
}

- (void)hideToolbarInfoMessage {
    if (toolbarInfoMessageVisible) {
        NSMutableArray *toolbarItems = [NSMutableArray arrayWithArray:toolbar.items];
        [toolbarItems removeObject:toolbarLabelItem];
        toolbar.items = toolbarItems;
    
        [toolbarLabelItem release];
        
        [toolbarLabel removeFromSuperview];
        [toolbarLabel release];
        toolbarLabel = nil;
        
        toolbarInfoMessageVisible = NO;
    }
}

- (void)hideToolbarActivityMessage {
    if (toolbarActivityMessageVisible) {
        NSMutableArray *toolbarItems = [NSMutableArray arrayWithArray:toolbar.items];
        [toolbarItems removeObject:toolbarActivityIndicatorItem];
        [toolbarItems removeObject:toolbarLabelItem];
        toolbar.items = toolbarItems;

        [toolbarActivityIndicatorItem release];
        [toolbarLabelItem release];
        
        [toolbarLabel removeFromSuperview];
        [toolbarLabel release];
        toolbarLabel = nil;
        
        [toolbarActivityIndicatorView removeFromSuperview];
        [toolbarActivityIndicatorView release];
        
        toolbarActivityMessageVisible = NO;
    }
}

- (void)dealloc {
    [self hideToolbarActivityMessage];
    [self hideToolbarInfoMessage];
    [toolbarProgressView release];
    [super dealloc];
}

@end