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path: root/src/util.py
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import shutil
import requests
import colors
import time
import os
import hashlib

DEFAULT_BAR_COLOR = colors.BLACK + colors.BG_CYAN
DEFAULT_BAR_COLOR_RESET = colors.BG_BLACK + colors.CYAN

def add_path(*argv):
    a = argv[0]
    for b in argv[1:]:
        a = a + ("" if a[-1] == "/"  else "/") + (b[1:] if b[0] == "/" else b)
    return a

def loading_bar(completed, total, text, 
        unit="", color=DEFAULT_BAR_COLOR, reset=DEFAULT_BAR_COLOR_RESET):

    columns, rows = shutil.get_terminal_size((80, 20))
    
    count = f"[{completed}{unit}/{total}{unit}]"
    
    spaces = columns - (len(count) + len(text))
    info = text +  "".join([" " for i in range(spaces)]) + count

    reset_at = int((completed/total)*len(info)) if total > 0 else 0
    info = "".join([info[i] + (reset if i == reset_at else "") for i in range(len(info))]) 

    print(color + info, end="\r")

def print_reset(text):
    print(colors.RESET + text)

def curl(url, raw=False):
    try:
        r = requests.get(url)
    except:
        return 500, ""
    return r.status_code, r.content if raw else r.text

def get_unit(n):
    base = 1000
    if n > base**4: return base**4, "TB"
    elif n > base**3: return base**3, "GB"
    elif n > base**2: return base**2, "MB"
    elif n > base**1: return base**1, "KB"
    else: return 1, "B"

def curl_to_file(url, path, text=""):
    with requests.get(url, stream=True) as r:
        r.raise_for_status()

        length = int(r.headers['content-length']) if "content-length" in r.headers else 1000
        with open(path, "wb") as f:

            c_size = 4096
            ic = r.iter_content(chunk_size=c_size)
            done = 0

            for chunk in ic:
                if text:
                    divisor, unit = get_unit(length)
                    loading_bar(int(done/divisor), int(length/divisor), "Downloading " + text, unit=unit)

                f.write(chunk)
                done += c_size
        if text:
            divisor, unit = get_unit(length)
            loading_bar(int(done/divisor), int(length/divisor), "Downloaded " + text, unit=unit)

        return r.status_code, path


def mkdir(path):
    if not os.path.exists(path):
        os.makedirs(path)

def md5sum(filename):
    md5_hash = hashlib.md5()

    with open(filename,"rb") as f:
        for byte_block in iter(lambda: f.read(4096),b""):
            md5_hash.update(byte_block)

        return md5_hash.hexdigest()

def ask_confirmation(text, default=True, no_confirm=False):
    yes = "Y" if default else "y"
    no = "n" if default else "N"

    if no_confirm:
        reponse = "y" if default else "n"
        print(f"{text} [{yes},{no}] {colors.RESET} {reponse}")
    else:
        reponse = input(f"{text} [{yes},{no}] " + colors.RESET)

    return reponse.lower() == "y" or len(reponse) == 0 

if __name__ == "__main__":
    for i in range(1000):
        loading_bar(i, 1000, "it is loading...")
        time.sleep(0.01)