//
//  ZGImageUtils.m
//  UUTUtils
//
//  Created by zhuge on 2017/12/28.
//  Copyright © 2017年 zhuge. All rights reserved.
//

#import "ZGImageUtils.h"

@implementation ZGImageUtils

+ (void)resizePng:(NSString *)path toWidth:(int)width toHeight:(int)height {
    [ZGImageUtils resizePng:path toWidth:width toHeight:height toPath:path];
}

+ (void)resizePng:(NSString *)path toWidth:(int)width toHeight:(int)height toPath:(NSString *)toPath {
    NSString *parentPath = [toPath stringByDeletingLastPathComponent];
    NSFileManager *fm = [NSFileManager defaultManager];
    if (![fm fileExistsAtPath:parentPath]) {
        [fm createDirectoryAtPath:parentPath withIntermediateDirectories:YES attributes:nil error:nil];
    }
    NSString *cmd = @"/usr/bin/sips";
    NSArray *args = @[
                      @"--resampleHeightWidth",
                      [NSString stringWithFormat:@"%d", height],
                      [NSString stringWithFormat:@"%d", width],
                      path,
                      @"--out",
                      toPath
                ];
    NSTask *currentTask = [[NSTask alloc] init];
    [currentTask setLaunchPath:cmd];
    NSMutableDictionary *environmentDict = [NSMutableDictionary dictionaryWithDictionary:[[NSProcessInfo processInfo] environment]];
    NSString *sysPath = [environmentDict objectForKey:@"PATH"];
    sysPath = [NSString stringWithFormat:@"%@:%@", [[NSBundle mainBundle] pathForResource:@"ApkTools" ofType:nil], sysPath];
    [environmentDict setValue:sysPath forKey:@"PATH"];
    [environmentDict setValue:@"-Dfile.encoding=UTF-8" forKey:@"JAVA_TOOL_OPTIONS"];
    [currentTask setEnvironment:environmentDict];
    
    // Set arguments
    [currentTask setArguments:args];
    
    // Set output
    [currentTask setStandardOutput:[NSFileHandle fileHandleWithStandardOutput]];
    [currentTask setStandardError:[NSFileHandle fileHandleWithStandardError]];
    
    [currentTask launch];
    [currentTask waitUntilExit];
}

@end