#!/usr/bin/python3
import dnf
import os
import shutil
import tempfile
import logging
log = logging

def get_dbo(installroot, releasever):

    dnfbase = dnf.Base()
    conf = dnfbase.conf

    conf.install_weak_deps = False
    conf.releasever = releasever
    conf.installroot = installroot
    conf.prepend_installroot('persistdir')
    conf.tsflags = ('nodocs',)
    conf.module_platform_id = "platform:f29"

    # Use the .repo files from /etc/yum.repos.d/
    conf.reposdir = ["/etc/yum.repos.d"]
    dnfbase.read_all_repos()

    dnfbase.fill_sack(load_system_repo=False)
    dnfbase.read_comps()

    return dnfbase

if __name__ == '__main__':
    tempdir = tempfile.mkdtemp(prefix="pylorax.tmp.")
    if not tempdir:
        raise RuntimeError("Could not create tempdir")

    installroot = os.path.join(tempdir, "installroot")

    dbo = get_dbo(installroot, "29")

    # This should return 1 bash package, but it returns conflicting packages.
    p = "bash"
    pkgnames = [pkg for pkg in dnf.subject.Subject(p).get_best_query(dbo.sack).filter(latest=True)]
    print("%s wants to install: %s" % (p, pkgnames))

    # This should return 1 package, bash, but it doesn't
    name = "bash"
    version = "4.4.*"
    pkgnames = [pkg for pkg in dnf.subject.Subject(name).get_best_query(dbo.sack).filter(version__glob=version,latest=True)]
    print("%s-%s wants to install: %s" % (name, version, pkgnames))

    shutil.rmtree(tempdir)