SFResourceManager.m

//
// Created by shiweifu on 1/21/15.
// Copyright (c) 2015 SF. All rights reserved.
//

#import "SFResourceManager.h"
#import "HexColor.h"

@interface SFResourceManager()

@property (nonatomic, strong) NSArray *fontResourceObject;
@property (nonatomic, strong) NSArray *colorResourceObject;
@property (nonatomic, strong) NSArray *backgroundColorResourceObject;

@end

@implementation SFResourceManager
{

}

- (instancetype)init
{
  self = [super init];
  if (self)
  {

    NSString *path = [[NSBundle mainBundle] pathForResource:@"res" ofType:@"json"];
    NSError *error = nil;
    NSData *data = [[NSData alloc] initWithContentsOfFile:path];
    NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:data
                                                          options:NSJSONReadingAllowFragments
                                                            error:&error];

    self.fontResourceObject = jsonObject[@"font"];
    self.colorResourceObject = jsonObject[@"color"];
    self.backgroundColorResourceObject = jsonObject[@"backgroundColor"];
  }

  return self;
}

+ (UIFont *)fontWithAttrName:(NSString *)attrName
{
  UIFont *f = nil;

  for(NSDictionary *d in [self.instance fontResourceObject])
  {
    if([d[@"name"] isEqualToString:attrName])
    {
      NSNumber *fontSize = d[@"font_size"];
      NSString *fontName = d[@"font_name"];
      f = [UIFont fontWithName:fontName size:fontSize.integerValue];
      break;
    }
  }
  return f;
}

+ (UIColor *)colorWithAttrName:(NSString *)attrName
{

  UIColor *c = nil;

  for(NSDictionary *d in [self.instance colorResourceObject])
  {
    if ([d[@"name"] isEqualToString:attrName])
    {
      c = [UIColor colorWithHexString:d[@"value"]];
      break;
    }
  }

  return c;
}

+ (UIColor *)backgroundColorWithAttrName:(NSString *)attrName
{
  UIColor *c = nil;

  for(NSDictionary *d in [self.instance backgroundColorResourceObject])
  {
    if ([d[@"name"] isEqualToString:attrName])
    {
      c = [UIColor colorWithHexString:d[@"value"]];
      break;
    }
  }

  return c;
}

+ (SFResourceManager *)instance
{
  static SFResourceManager *_instance = nil;

  @synchronized (self)
  {
    if (_instance == nil)
    {
      _instance = [[self alloc] init];
    }
  }

  return _instance;
}

@end


@implementation UIView(ResourceManager)

- (void)setResourceWithAttrName:(NSString *)attrName
{
  UIColor *textColor = [SFResourceManager colorWithAttrName:attrName];
  UIColor *backgroundColor = [SFResourceManager backgroundColorWithAttrName:attrName];
  UIFont  *font = [SFResourceManager fontWithAttrName:attrName];

  backgroundColor = backgroundColor?backgroundColor: [UIColor clearColor];


  if([self isKindOfClass:UIButton.class] )
  {
    UIButton *btn = (UIButton *) self;
    [btn setBackgroundColor:backgroundColor];
    [btn.titleLabel setFont:font];
    [btn setTitleColor:textColor forState:UIControlStateNormal];
  }
  else if([self isKindOfClass:UILabel.class])
  {
    UILabel *label = (UILabel *)self;
    [label setFont:font];
    [label setBackgroundColor:backgroundColor];
    [label setTextColor:textColor];
  }
  else if([self isKindOfClass:UIView.class])
  {
    UIView *v = self;
    [v setBackgroundColor:backgroundColor];
  }
}

@end