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//

// Copyright 2009-2010 Facebook

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//    http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//

#import "Three20UI/TTActivityLabel.h"

// UI

#import "Three20UI/TTView.h"

#import "Three20UI/TTButton.h"

#import "Three20UI/UIViewAdditions.h"

// UINavigator

#import "Three20UINavigator/TTGlobalNavigatorMetrics.h"

// Style

#import "Three20Style/TTGlobalStyle.h"

#import "Three20Style/TTDefaultStyleSheet.h"

#import "Three20Style/UIFontAdditions.h"

// Core

#import "Three20Core/TTCorePreprocessorMacros.h"

static CGFloat kMargin          = 10;

static CGFloat kPadding         = 15;

static CGFloat kBannerPadding   = 8;

static CGFloat kSpacing         = 6;

static CGFloat kProgressMargin  = 6;

///////////////////////////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////////////////////////

@implementation TTActivityLabel

@synthesize style             = _style;

@synthesize progress          = _progress;

@synthesize smoothesProgress  = _smoothesProgress;

///////////////////////////////////////////////////////////////////////////////////////////////////

- (id)initWithFrame:(CGRect)frame style:(TTActivityLabelStyle)style text:(NSString*)text {

  if (self = [super initWithFrame:frame]) {

    _style = style;

    _progress = 0;

    _smoothesProgress = NO;

    _smoothTimer =nil;

    _progressView = nil;

    _bezelView = [[TTView alloc] init];

    if (_style == TTActivityLabelStyleBlackBezel) {

      _bezelView.backgroundColor = [UIColor clearColor];

      _bezelView.style = TTSTYLE(blackBezel);

      self.backgroundColor = [UIColor clearColor];

    } else if (_style == TTActivityLabelStyleWhiteBezel) {

      _bezelView.backgroundColor = [UIColor clearColor];

      _bezelView.style = TTSTYLE(whiteBezel);

      self.backgroundColor = [UIColor clearColor];

    } else if (_style == TTActivityLabelStyleWhiteBox) {

      _bezelView.backgroundColor = [UIColor clearColor];

      self.backgroundColor = [UIColor whiteColor];

    } else if (_style == TTActivityLabelStyleBlackBox) {

      _bezelView.backgroundColor = [UIColor clearColor];

      self.backgroundColor = [UIColor colorWithWhite:0 alpha:0.8];

    } else if (_style == TTActivityLabelStyleBlackBanner) {

      _bezelView.backgroundColor = [UIColor clearColor];

      _bezelView.style = TTSTYLE(blackBanner);

      self.backgroundColor = [UIColor clearColor];

    } else {

      _bezelView.backgroundColor = [UIColor clearColor];

      self.backgroundColor = [UIColor clearColor];

    }

    self.autoresizingMask =

      UIViewAutoresizingFlexibleWidth |

      UIViewAutoresizingFlexibleHeight;

    _label = [[UILabel alloc] init];

    _label.text = text;

    _label.backgroundColor = [UIColor clearColor];

    _label.lineBreakMode = UILineBreakModeTailTruncation;

    if (_style == TTActivityLabelStyleWhite) {

      _activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:

                                                            UIActivityIndicatorViewStyleWhite];

      _label.font = TTSTYLEVAR(activityLabelFont);

      _label.textColor = [UIColor whiteColor];

    } else if (_style == TTActivityLabelStyleGray

               || _style == TTActivityLabelStyleWhiteBox

               || _style == TTActivityLabelStyleWhiteBezel) {

      _activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:

                                                            UIActivityIndicatorViewStyleGray];

      _label.font = TTSTYLEVAR(activityLabelFont);

      _label.textColor = TTSTYLEVAR(tableActivityTextColor);

    } else if (_style == TTActivityLabelStyleBlackBezel || _style == TTActivityLabelStyleBlackBox) {

      _activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:

                                                            UIActivityIndicatorViewStyleWhiteLarge];

      _activityIndicator.frame = CGRectMake(0, 0, 24, 24);

      _label.font = TTSTYLEVAR(activityLabelFont);

      _label.textColor = [UIColor whiteColor];

      _label.shadowColor = [UIColor colorWithWhite:0 alpha:0.3];

      _label.shadowOffset = CGSizeMake(1, 1);

    } else if (_style == TTActivityLabelStyleBlackBanner) {

      _activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:

                                                            UIActivityIndicatorViewStyleWhite];

      _label.font = TTSTYLEVAR(activityBannerFont);

      _label.textColor = [UIColor whiteColor];

      _label.shadowColor = [UIColor colorWithWhite:0 alpha:0.3];

      _label.shadowOffset = CGSizeMake(1, 1);

    }

    [self addSubview:_bezelView];

    [_bezelView addSubview:_activityIndicator];

    [_bezelView addSubview:_label];

    [_activityIndicator startAnimating];

  }

  return self;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (id)initWithFrame:(CGRect)frame style:(TTActivityLabelStyle)style {

  if (self = [self initWithFrame:frame style:style text:nil]) {

  }

  return self;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (id)initWithStyle:(TTActivityLabelStyle)style {

  if (self = [self initWithFrame:CGRectZero style:style text:nil]) {

  }

  return self;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (id)initWithFrame:(CGRect)frame {

  if (self = [self initWithFrame:frame style:TTActivityLabelStyleWhiteBox text:nil]) {

  }

  return self;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)dealloc {

  TT_INVALIDATE_TIMER(_smoothTimer);

  TT_RELEASE_SAFELY(_bezelView);

  TT_RELEASE_SAFELY(_progressView);

  TT_RELEASE_SAFELY(_activityIndicator);

  TT_RELEASE_SAFELY(_label);

  [super dealloc];

}

///////////////////////////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////////////////////////

#pragma mark -

#pragma mark UIView

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)layoutSubviews {

  [super layoutSubviews];

  CGSize textSize = [_label.text sizeWithFont:_label.font];

  CGFloat indicatorSize = 0;

  [_activityIndicator sizeToFit];

  if (_activityIndicator.isAnimating) {

    if (_activityIndicator.height > textSize.height) {

      indicatorSize = textSize.height;

    } else {

      indicatorSize = _activityIndicator.height;

    }

  }

  CGFloat contentWidth = indicatorSize + kSpacing + textSize.width;

  CGFloat contentHeight = textSize.height > indicatorSize ? textSize.height : indicatorSize;

  if (_progressView) {

    [_progressView sizeToFit];

    contentHeight += _progressView.height + kSpacing;

  }

  CGFloat margin, padding, bezelWidth, bezelHeight;

  if (_style == TTActivityLabelStyleBlackBezel || _style == TTActivityLabelStyleWhiteBezel) {

    margin = kMargin;

    padding = kPadding;

    bezelWidth = contentWidth + padding*2;

    bezelHeight = contentHeight + padding*2;

  } else {

    margin = 0;

    padding = kBannerPadding;

    bezelWidth = self.width;

    bezelHeight = self.height;

  }

  CGFloat maxBevelWidth = TTScreenBounds().size.width - margin*2;

  if (bezelWidth > maxBevelWidth) {

    bezelWidth = maxBevelWidth;

    contentWidth = bezelWidth - (kSpacing + indicatorSize);

  }

  CGFloat textMaxWidth = (bezelWidth - (indicatorSize + kSpacing)) - padding*2;

  CGFloat textWidth = textSize.width;

  if (textWidth > textMaxWidth) {

    textWidth = textMaxWidth;

  }

  _bezelView.frame = CGRectMake(floor(self.width/2 - bezelWidth/2),

                                floor(self.height/2 - bezelHeight/2),

                                bezelWidth, bezelHeight);

  CGFloat y = padding + floor((bezelHeight - padding*2)/2 - contentHeight/2);

  if (_progressView) {

    if (_style == TTActivityLabelStyleBlackBanner) {

      y += kBannerPadding/2;

    }

    _progressView.frame = CGRectMake(kProgressMargin, y,

                                     bezelWidth - kProgressMargin*2, _progressView.height);

    y += _progressView.height + kSpacing-1;

  }

  _label.frame = CGRectMake(floor((bezelWidth/2 - contentWidth/2) + indicatorSize + kSpacing), y,

                            textWidth, textSize.height);

  _activityIndicator.frame = CGRectMake(_label.left - (indicatorSize+kSpacing), y,

                                        indicatorSize, indicatorSize);

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (CGSize)sizeThatFits:(CGSize)size {

  CGFloat padding;

  if (_style == TTActivityLabelStyleBlackBezel || _style == TTActivityLabelStyleWhiteBezel) {

    padding = kPadding;

  } else {

    padding = kBannerPadding;

  }

  CGFloat height = _label.font.ttLineHeight + padding*2;

  if (_progressView) {

    height += _progressView.height + kSpacing;

  }

  return CGSizeMake(size.width, height);

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)smoothTimer {

  if (_progressView.progress < _progress) {

    _progressView.progress += 0.01;

  } else {

    TT_INVALIDATE_TIMER(_smoothTimer);

  }

}

///////////////////////////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////////////////////////

#pragma mark -

#pragma mark Public

///////////////////////////////////////////////////////////////////////////////////////////////////

- (NSString*)text {

  return _label.text;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)setText:(NSString*)text {

  _label.text = text;

  [self setNeedsLayout];

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (UIFont*)font {

  return _label.font;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)setFont:(UIFont*)font {

  _label.font = font;

  [self setNeedsLayout];

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (BOOL)isAnimating {

  return _activityIndicator.isAnimating;

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)setIsAnimating:(BOOL)isAnimating {

  if (isAnimating) {

    [_activityIndicator startAnimating];

  } else {

    [_activityIndicator stopAnimating];

  }

}

///////////////////////////////////////////////////////////////////////////////////////////////////

- (void)setProgress:(float)progress {

  _progress = progress;

  if (!_progressView) {

    _progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];

    _progressView.progress = 0;

    [_bezelView addSubview:_progressView];

    [self setNeedsLayout];

  }

  if (_smoothesProgress) {

    if (!_smoothTimer) {

      _smoothTimer = [NSTimer scheduledTimerWithTimeInterval:0.01 target:self

                              selector:@selector(smoothTimer) userInfo:nil repeats:YES];

    }

  } else {

    _progressView.progress = progress;

  }

}

@end