//
//  GiGaFileNanager.m
//  GIGA
//
//  Created by lianxiang on 2018/8/22.
//  Copyright © 2018年 com.giga.ios. All rights reserved.
//

#import "GiGaFileNanager.h"

@implementation GiGaFileNanager

+ (GiGaFileNanager *)shareInstance
{
    static GiGaFileNanager *manager = nil;
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        manager = [[self alloc] init];
    });
    
    return manager;
}

- (BOOL)isFileExistWithFilePath:(NSString *)filePath
{
    NSFileManager *fileManager = [NSFileManager defaultManager];
    BOOL isDirectory = FALSE;
    return [fileManager fileExistsAtPath:filePath isDirectory:&isDirectory];
}

-(NSString *)getFilePathWithImageName:(NSString *)imageName{
    
    if (imageName) {
        
        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask, YES);
        NSString *filePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:imageName];
        return filePath;
    }
    return nil;
}

-(void)removeItemAtPath:(NSString *)filePath{
    NSFileManager *filManager = [NSFileManager defaultManager];
    [filManager removeItemAtPath:filePath error:nil];
}

- (void)saveAdImageWithUrl:(NSString *)imageUrl imageName:(NSString *)imageName success:(void (^)(void))success
                   failure:(void (^)(NSError *err))failure{
    
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:imageUrl]];
        
        UIImage *image = [UIImage imageWithData:data];
        NSString *filePath = [self getFilePathWithImageName:imageName]; // 保存文件的名称
        if ([UIImagePNGRepresentation(image) writeToFile:filePath atomically:YES]) {
            //NSLog(@"保存成功");
            
            success();
            
        }else{
            //NSLog(@"保存失败");
            NSError *err;
            failure(err);
        } });
}

-(void)saveImaeToAlBum:(UIImage *)image{
    if (image != nil) {
        UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);
    }
}

- (void)image: (UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
    
    NSString *msg = nil ;
    
    if(error != NULL){
        
        msg = @"保存图片失败" ;
        
    }else{
        
        msg = @"保存图片成功，可到相册查看" ;
        
    }
    [[UIApplication sharedApplication].keyWindow makeToast:msg duration:1.6 position:CSToastPositionCenter];
    
}

@end