#!/usr/bin/python3

import click
import requests
from collections import OrderedDict, defaultdict
from os import path
import xmltodict

DEFAULT_CONTENT_RESOLVER_URL = "https://tiny.distro.builders"
DEFAULT_CONTENT_RESOLVER_VIEW = "eln-extras"


@click.command()
@click.option(
    "--content-resolver-url",
    "-u",
    default=DEFAULT_CONTENT_RESOLVER_URL,
    show_default=True,
)
@click.option(
    "--content-resolver-view",
    "-w",
    default=DEFAULT_CONTENT_RESOLVER_VIEW,
    show_default=True,
)
@click.argument("infile", type=click.File(mode="rb"))
@click.argument("outfile", type=click.File(mode="wb", atomic=True))
def cli(content_resolver_url, content_resolver_view, infile, outfile):
    comps = xmltodict.parse(infile)

    comps_group = OrderedDict()
    comps_group["id"] = "eln-extras"
    comps_group["_name"] = "ELN Extras"
    comps_group[
        "_description"
    ] = "Extra packages not in ELN, but needed to be built like ELN for testing"
    comps_group["default"] = "false"
    comps_group["uservisible"] = "false"
    comps_group["packagelist"] = OrderedDict()
    comps_group["packagelist"]["packagereq"] = list()

    ARCHES = ["aarch64", "ppc64le", "s390x", "x86_64"]
    package_arches = defaultdict(set)
    for arch in ARCHES:
        r = requests.get(
            f"{content_resolver_url}/view-all-binary-package-name-list--view-{content_resolver_view}--{arch}.txt"
        )
        r.raise_for_status()
        packages = r.text.split("\n")

        for package in packages:
            package_arches[package].add(arch)

    for package in sorted(package_arches.keys()):
        entry = OrderedDict()
        entry["@variant"] = "Extras"
        entry["@arch"] = ",".join(package_arches[package])
        entry["#text"] = package
        comps_group["packagelist"]["packagereq"].append(entry)

    comps["comps"]["group"].append(comps_group)

    raw_xml = xmltodict.unparse(
        comps, full_document=True, pretty=True, indent="  "
    )
    xml = raw_xml.replace(
        '<?xml version="1.0" encoding="utf-8"?>',
        '<!DOCTYPE comps PUBLIC "-//Red Hat, Inc.//DTD Comps info//EN" "comps.dtd">',
        1,
    )
    outfile.write(xml.encode("UTF-8"))


if __name__ == "__main__":
    cli()