//
//  Constants.m
//  SDKDemo
//
//  Created by  Tim Lei on 10/13/15.
//  Copyright © 2015 FreeView. All rights reserved.
//

#import "HDLEZConstants.h"
#import <Photos/Photos.h>
@implementation HDLEZConstants
/*获取当前controller
 */
+(UIViewController *)currentVC{
    UIViewController *currentVC;
    UIViewController *rootVC=[self appWindow].rootViewController;
    if ([rootVC presentedViewController]) {
        rootVC=[rootVC presentedViewController];
    }
    if ([rootVC isKindOfClass:[UITabBarController class]]) {
        currentVC=[(UITabBarController*)rootVC selectedViewController];
    }else if([rootVC isKindOfClass:[UINavigationController class]]){
        currentVC=[(UINavigationController*)rootVC visibleViewController];
    }else{
        currentVC=rootVC;
    }
    return currentVC;
}

/*获取当前window
 */
+(UIWindow*)appWindow{
    UIWindow *window;
    if (@available(iOS 13.0, *)) {
        HDLEZLog(@"windows:%@",[UIApplication sharedApplication].windows);
        window = [UIApplication sharedApplication].windows[0];
        if (!window) {
            window=[UIApplication sharedApplication].delegate.window;
        }
    } else {
        window = [UIApplication sharedApplication].delegate.window;
    }
    return window;
}


+(UIImage *)captureImageFromView:(UIView *)view{

//    // currentView 当前的view  创建一个基于位图的图形上下文并指定大小为
//    UIGraphicsBeginImageContextWithOptions(CGSizeMake(view.frame.size.width, view.frame.size.height), NO, 0.0);
//    // renderInContext呈现接受者及其子范围到指定的上下文
//    [view.layer renderInContext:UIGraphicsGetCurrentContext()];
//    // 返回一个基于当前图形上下文的图片
//    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
//    // 移除栈顶的基于当前位图的图形上下文
//    UIGraphicsEndImageContext();
//    // 保存图片
//    //UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);
//    return viewImage;
    
    UIGraphicsBeginImageContextWithOptions(view.bounds.size, NO, 0.0);

    // Render our snapshot into the image context

    [view drawViewHierarchyInRect:view.bounds afterScreenUpdates:NO];

    // Grab the image from the context

    UIImage *complexViewImage = UIGraphicsGetImageFromCurrentImageContext();

    // Finish using the context

    UIGraphicsEndImageContext();

    return complexViewImage;


}

#pragma 保存图片到相册
+(void)saveImageToPhotosAlbum:(UIImage *)savedImage
{
    PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
    if (status == PHAuthorizationStatusNotDetermined)
    {
        [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
            if(status == PHAuthorizationStatusAuthorized)
            {
                UIImageWriteToSavedPhotosAlbum(savedImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), NULL);
            }
        }];
    }
    else
    {
        if (status == PHAuthorizationStatusAuthorized)
        {
            UIImageWriteToSavedPhotosAlbum(savedImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), NULL);
        }
    }
}

// 保存到相册指定回调方法
+(void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
    NSString *message = nil;
    NSString *languageName = [[[NSUserDefaults standardUserDefaults] objectForKey:@"AppleLanguages"] objectAtIndex:0];
    NSString *saveToTheAlbumsStr,*operationFailedStr,*tipStr,*okStr;
    // 简体中文
    if ([languageName rangeOfString:@"zh-Hans"].location != NSNotFound) {
        tipStr = @"提示";
        saveToTheAlbumsStr = @"已保存至手机相册.";
        operationFailedStr = @"操作失败";
        okStr = @"确认";
        
    }else{
        tipStr = @"Prompt";
        okStr = @"OK";
        saveToTheAlbumsStr = @"Saved to the albums.";
        operationFailedStr = @"Operation failed.";

    }
    if (!error) {
        message = saveToTheAlbumsStr;
    }
    else
    {
        message = operationFailedStr;
    }
    
    [self showUIAlertView:message title:tipStr cancelTitle:okStr];
}

+(void)showUIAlertView:(NSString *)mes title:(NSString *)title cancelTitle:(NSString *)cancleTitle
{
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:mes preferredStyle:UIAlertControllerStyleAlert];
    [alertController addAction:[UIAlertAction actionWithTitle:cancleTitle style:UIAlertActionStyleCancel handler:nil]];
    [[self topMostController] presentViewController:alertController animated:YES completion:nil];
    
}

+(UIViewController *) topMostController {
    UIViewController*topController ;
    if ([UIApplication sharedApplication].delegate.window) {
        topController= [UIApplication sharedApplication].delegate.window.rootViewController;
    }else{
        topController=[self appWindow].rootViewController;
    }
    while(topController.presentedViewController){
        topController=topController.presentedViewController;
    }
    return topController;
}

/**
 *  生成二维码
 */
+ (UIImage *)creatCIQRCodeImage:(NSString *)dataStr{
    //创建过滤器，这里的@"CIQRCodeGenerator"是固定的
    CIFilter *filter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
    //恢复默认设置
    [filter setDefaults];
    //给过滤器添加数据
    NSData *data = [dataStr dataUsingEncoding:NSUTF8StringEncoding];
    //value必须是NSData类型
    [filter setValue:data forKeyPath:@"inputMessage"];
    //生成二维码
    CIImage *outputImage = [filter outputImage];
    //显示二维码
    return [self creatNonInterpolatedUIImageFormCIImage:outputImage withSize:100.0];
}

+ (UIImage *)creatNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat)size {
    CGRect extent = CGRectIntegral(image.extent);
    CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
    //创建bitmap
    size_t width = CGRectGetWidth(extent) * scale;
    size_t height = CGRectGetHeight(extent) * scale;
    CGColorSpaceRef cs = CGColorSpaceCreateDeviceGray();
    CGContextRef bitmapRef = CGBitmapContextCreate(nil, width, height, 8, 0, cs, (CGBitmapInfo)kCGImageAlphaNone);
    CIContext *context = [CIContext contextWithOptions:nil];
    CGImageRef bitmapImage = [context createCGImage:image fromRect:extent];
    CGContextSetInterpolationQuality(bitmapRef, kCGInterpolationNone);
    CGContextScaleCTM(bitmapRef, scale, scale);
    CGContextDrawImage(bitmapRef, extent, bitmapImage);
    //保存bitmap图片
    CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef);
    CGContextRelease(bitmapRef);
    CGImageRelease(bitmapImage);
    return [UIImage imageWithCGImage:scaledImage];
}

/*获取特定时间格式的时间字符串
 */
+(NSString *)timeStrWithFormate:(NSString *)formate data:(NSDate *)date{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:formate];
    NSString *dateString = [dateFormatter stringFromDate:date];
    return dateString;
}

/**
 计算文字高度，允许换行计算

 @param fontSize 文字大小
 @param widht 文字宽度
 @param text 文字内容
 @return 返回文字的高度
 */
+(CGFloat)sizeLineFeedWithFont:(CGFloat)fontSize textSizeWidht:(CGFloat)widht text:(NSString*)text{
    UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, widht, 0)];
    textView.text = text;
    textView.font = [UIFont systemFontOfSize:fontSize];
    CGSize size = CGSizeMake(widht, MAXFLOAT);
    CGSize constraint = [textView sizeThatFits:size];
    return constraint.height;
}

/**
 *  保存数据
 */
+ (void)saveObject:(id )obj key:(NSString*)key{
    NSUserDefaults *UD=[NSUserDefaults standardUserDefaults];
    [UD setObject:obj forKey:key];
    [UD synchronize];
}

/**
 *  获取数据
 */
+ (id)getObjectBykey:(NSString*)key{
    NSUserDefaults *UD=[NSUserDefaults standardUserDefaults];
    return [UD objectForKey:key];
}

/*小于两位数前面自动填补0
 */
+(NSString *)autoFillZero:(NSInteger)value;{
    NSString *result=@"";
    if (value<10) {
        result=[NSString stringWithFormat:@"0%ld",(long)value];
    }else{
        result=[NSString stringWithFormat:@"%ld",(long)value];
    }
    return result;
}

/*时间对比
 */
+ (int)compareOneDay:(NSDate *)oneDay withAnotherDay:(NSDate *)anotherDay
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
    NSString *oneDayStr = [dateFormatter stringFromDate:oneDay];
    NSString *anotherDayStr = [dateFormatter stringFromDate:anotherDay];
    NSDate *dateA = [dateFormatter dateFromString:oneDayStr];
    NSDate *dateB = [dateFormatter dateFromString:anotherDayStr];
    NSComparisonResult result = [dateA compare:dateB];
    NSLog(@"oneDay : %@, anotherDay : %@", oneDay, anotherDay);
    if (result == NSOrderedDescending) {
        //在指定时间前面 过了指定时间 过期
        return 1;
    }
    else if (result == NSOrderedAscending){
        //没过指定时间 没过期
        //NSLog(@"Date1 is in the past");
        return -1;
    }
    //刚好时间一样.
    //NSLog(@"Both dates are the same");
    return 0;
    
}

/*时间格式转换
 */
+(NSString *)turnDateString:(NSString*)dateString toFormater:(NSString*)formater{
    //原始时间
    NSDateFormatter *originDateFormatter = [[NSDateFormatter alloc] init];
    [originDateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSDate *oringinDate = [originDateFormatter dateFromString:dateString];
    
    //转换目标时间
    NSDateFormatter *targetDateFormatter = [[NSDateFormatter alloc] init];
    [targetDateFormatter setDateFormat:formater];
    NSString *targetDateStr = [targetDateFormatter stringFromDate:oringinDate];
    

    return targetDateStr;
}


/*判断是否为纯数字
 @param number 内容
 */
+(BOOL)validateNumber:(NSString*)number{
    BOOL res = YES;
    NSCharacterSet* tmpSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789"];
    int i = 0;
    while (i < number.length) {
        NSString * string = [number substringWithRange:NSMakeRange(i, 1)];
        NSRange range = [string rangeOfCharacterFromSet:tmpSet];
        if (range.length == 0) {
            res = NO;
            break;
        }
        i++;
    }
    return res;
}

/* 将nil转为""
 */
+(NSString*)turnNil:(NSString *)str{
    if (str == nil || str == NULL) {
        return @"";
    }else{
        return str;
    }
}
@end