refactor

barcodegen.py

@@ -1,56 +1,106 @@
-import sys,os
+import argparse
+import pathlib
+import subprocess
+import sys
+import time
+from textwrap import dedent
+
+from PIL import Image, ImageOps, ImageDraw, ImageFont
 from barcode import EAN13
 from barcode.writer import ImageWriter
-from barcode.errors import NumberOfDigitsError, IllegalCharacterError
-from PIL import Image, ImageOps, ImageDraw, ImageFont, ImageColor
-from PIL.BdfFontFile import BdfFontFile
 
-class ImageWitoutTextWriter(ImageWriter):
-    def _paint_text(self, xpos, ypos):
-        pass
+PRODUCT_TYPES = {
+    "comp": ("21", "инвентарный номер для компьютера"),
+    "mon": ("22", "инвентарный номер для монитора"),
+    "net": ("23", "инвентарный номер для сетевого оборудования"),
+    "token": ("24", "инвентарный номер для токена"),
+    "print": ("25", "инвентарный номер для принтера/МФУ"),
+    "flash": ("26", "инвентарный номер для флешки"),
+    "hid": ("27", "инвентарный номер для HID устройств"),
+    "ups": ("28", "инвентарный номер для UPS устройств"),
+    "other": ("29", "инвентарный номер для других устройств"),
+}
 
-def create_code_png(n, code, text):
-        my_code = EAN13(code, writer=ImageWitoutTextWriter())
+BARCODES_PATH = pathlib.Path().absolute() / "barcodes"
 
-        my_code.save("code" + str(n), {"module_height":11.0,"module_width":0.3,"dpi":169, "font_size":0, "text_distance":1})
 
-        image_file = Image.open("code{}.png".format(str(n)))
-        image_file = image_file.convert('1', dither=Image.Dither.NONE)
-        img=ImageOps.expand(image_file, border=17, fill=1)
-        draw = ImageDraw.Draw(img)
-        dst = "terminus.pil"
-#with open("/home/applekeeper_cat/Загрузки/Terminus/ter-u16n.bdf", "rb") as f:
-#    bdf = BdfFontFile(f)
-#    bdf.save(dst)
-        font = ImageFont.load(dst)
-        draw.text((10,3), text, fill="black", font=font)
-        draw.text((100,100), my_code.get_fullcode(), fill="black", font=font)
-        img.save('code{}.png'.format(str(n)))
+def gen_ean13(ptype: str):
+    product_code = PRODUCT_TYPES[ptype][0]
+    digits = product_code + str(round(time.time()))
+    digits = [int(i) for i in digits]
+    checksum = (10 - (sum(digits[1::2]) * 3 + sum(digits[::2])) % 10) % 10
+    return "".join(str(i) for i in (digits + [checksum]))
 
-code = sys.argv[1]
-try:
-    text = sys.argv[2]
-except:
-    pass
-n = 1
 
-if(code == "i"):
-    while(True):
-        try:
-            code = input("Код (q для печати/выхода): ")
-            if(code == "q"):
-                com_str = "ptouch-print "
-                for i in range(1, n):
-                    com_str += "--image \"code" + str(i) + ".png\" --pad 5 "
-                os.system(com_str)
-                os.system("rm -f code*.png")
-                break
-            text = input("Текст: ")
-            create_code_png(n, code, text)
-            n+=1
-        except (NumberOfDigitsError, IllegalCharacterError):
-            print("Код введен неправильно.")
-else:
-    create_code_png(1, code, text)
-    os.system("ptouch-print --image \"code1.png\"")
-    os.system("rm -f code1.png")
+def create_code_png(filename: str | pathlib.Path, code, text):
+    if not filename.parent.exists():
+        filename.parent.mkdir(parents=True)
+
+    my_code = EAN13(code, writer=ImageWriter())
+
+    image = my_code.render(
+        writer_options={
+            "module_height": 11.0,
+            "module_width": 0.3,
+            "dpi": 169,
+            "font_size": 0,
+            "text_distance": 1,
+            "write_text": None,
+        }
+    )
+
+    image = image.convert("1", dither=Image.Dither.NONE)
+    image = ImageOps.expand(image, border=17, fill=1)
+    draw = ImageDraw.Draw(image)
+    dst = "terminus.pil"
+    font = ImageFont.load(dst)
+    text_length = draw.textlength(text, font=font)
+    code_text_length = draw.textlength(code, font=font)
+    draw.text(((image.width - text_length) / 2, 3), text, fill="black", font=font)
+    draw.text(
+        ((image.width - code_text_length) / 2, 100),
+        code,
+        fill="black",
+        font=font,
+    )
+    image.save(filename)
+
+
+def parse_args():
+    help_for_text = """\
+    code is must be a 13 digit code
+    or one of the following:
+    
+    """
+    help_for_text = dedent(help_for_text) + "\n".join(
+        f"{code} - {desc[1]}" for code, desc in PRODUCT_TYPES.items()
+    )
+    parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter)
+    parser.add_argument("code", type=str, help=help_for_text)
+    parser.add_argument(
+        "text", type=str, nargs="?", default="", help="Description for barcode"
+    )
+    parser.add_argument("--print", action=argparse.BooleanOptionalAction, default=True)
+    return parser.parse_args()
+
+
+def main():
+    args = parse_args()
+    if args.code not in PRODUCT_TYPES:
+        if args.code.isdigit() and len(args.code) == 13:
+            barcode = args.code
+        else:
+            print("Invalid args")
+            sys.exit(1)
+    else:
+        barcode = gen_ean13(args.code)
+
+    filename = BARCODES_PATH / f"{barcode}.png"
+    print(f"Generated code: {barcode}")
+    create_code_png(filename, barcode, args.text)
+    if args.print:
+        subprocess.run(["ptouch-print", "--image", filename])
+
+
+if __name__ == "__main__":
+    main()