# Pillow 8 이상을 확인하세요.
import sys, math, io, os
from PIL import Image, ImageCms

def get_script_path():
    return os.path.dirname(os.path.realpath(sys.argv[0]))

def size_rate(width,height):
    if width >= height:
        type = "landscape"
    else:
        type = "portrait"
    rateval = max(width,height) / min(width,height)
    dataset = {"1:1":abs(rateval-1.0),
               "5:4":abs(rateval-1.25),
               "4:3":abs(rateval-1.33),
               "3:2":abs(rateval-1.50),
               "A":abs(rateval-1.41)}
    res = {"rate": min(dataset, key=dataset.get),
           "score": dataset[min(dataset, key=dataset.get)],
           "type":type}
    return res

def dpiTxt(imginfo):
    if 'dpi' in imginfo:
        dpiTxt = math.ceil(imginfo['dpi'][0])
    else:
        dpiTxt = 72
    return dpiTxt

def get_icc(img):
    if 'icc_profile' in img.info:
        profile = ImageCms.getOpenProfile(io.BytesIO(img.info["icc_profile"])).tobytes()
    else:
        if img.mode != "CMYK":
            image = ImageCms.profileToProfile(img,
                                              get_script_path() + "/../color_profiles/sRGB Color Space Profile.icm",
                                              get_script_path() + "/../color_profiles/sRGB Color Space Profile.icm",
                                              renderingIntent=0)
            profile = ImageCms.getOpenProfile(io.BytesIO(image.info["icc_profile"])).tobytes()
        else:
            image = ImageCms.profileToProfile(img,
                                              get_script_path() + "/../color_profiles/USWebCoatedSWOP.icc",
                                              get_script_path() + "/../color_profiles/USWebCoatedSWOP.icc",
                                              renderingIntent=0, outputMode='CMYK')
            profile = ImageCms.getOpenProfile(io.BytesIO(image.info["icc_profile"])).tobytes()
    return profile

def build_filename(orgname,imgformat,mode):
    if imgformat == "JPEG": ext = "jpg"
    elif imgformat == "PNG": ext = "png"
    elif format == "GIF": ext = "gif"
    elif format == "BMP": ext = "bmp"
    else: ext = "ext"
    newfname = orgname + "_converted_" + str(mode) + "." + ext
    return newfname

def convert_image(filename,img):
    img.save(filename, dpi=(300, 300), quality=100, format=img.format,
             mode=img.mode, icc_profile=get_icc(img))

def web_def_image(filename,img):
    img.save(filename, dpi=(72, 72), quality=95, format=img.format,
             mode="RGB", icc_profile="sRGB")

def get_imginfo(filename):
    img = Image.open(filename)
    res = {"filename":filename,
            "format":img.format,
            "mode":img.mode,
            "width":img.width,
            "height":img.height,
            "dpi":str(dpiTxt(img.info)),
            "img":img}
    return res

Image.MAX_IMAGE_PIXELS = None

filename = str(sys.argv[1])

infoImg = get_imginfo(filename)

if dpiTxt(infoImg['img'].info) != 300:
    convert_image(build_filename(filename,infoImg['format'],"to_300dpi"),infoImg['img'])
    img_t = get_imginfo(build_filename(filename,infoImg['format'],"to_300dpi"))
    conv_filename = img_t["filename"]
    conv_format = img_t["format"]
    conv_mode = img_t["mode"]
    conv_width = img_t["width"]
    conv_height = img_t["height"]
    conv_dpi = img_t["dpi"]
else:
    conv_filename = ""
    conv_format = ""
    conv_mode = ""
    conv_width = ""
    conv_height = ""
    conv_dpi = ""

#web_def_image(,infoImg['img'])

print(
    str(infoImg['filename']) + "\t"
    + str(infoImg['format']) + "\t"
    + infoImg['mode'] + "\t"
    + str(infoImg['width']) + "\t"
    + str(infoImg['height']) + "\t"
    + size_rate(infoImg['width'],infoImg['height'])["type"] + "\t"
    + size_rate(infoImg['width'],infoImg['height'])["rate"] + "\t"
    + str(size_rate(infoImg['width'],infoImg['height'])["score"]) + "\t"
    + str(dpiTxt(infoImg['img'].info)) + "\t"
    + conv_filename + "\t"
    + conv_format + "\t"
    + conv_mode + "\t"
    + str(conv_width) + "\t"
    + str(conv_height) + "\t"
    + str(conv_dpi)
)