import hashlib
import jinja2 as j2
import os
import re
import requests as r


MAINTAINER = "Eldeberen <eldeberen.aur@middleearth.fr>"

env = j2.Environment(
    loader=j2.FileSystemLoader('templates'),
    autoescape=j2.select_autoescape([])
)

def get_hash(name, tag):
    regex = re.compile("^source=.+(https://.+\.tar\.[a-z]+)", re.MULTILINE)
    with open(f"templates/{name}.j2") as file:
        content = file.read()
    try:
        url = regex.search(content).group(1)
    except:
        return "SKIP"
    url = url.replace("${pkgver}", tag)
    url = url.replace("${pkgname}", name)

    archive = r.get(url)
    hash = hashlib.sha256(archive.content).hexdigest()

    return hash

def render_pkgbuild(name, tag):
    template = env.get_template(f"{name}.j2")
    hash = get_hash(name, tag)

    os.mkdir(f"pkgbuilds/{name}")

    with open(f"pkgbuilds/{name}/PKGBUILD", "w") as file:
        file.write(template.render(tag=tag, hash=hash, maintainer=MAINTAINER))