import os
import pkgcrap.parse as parse

def conf_dir_path():
    conf_home = '~/.config'
    if 'XDG_CONFIG_HOME' in os.environ:
        conf_home = os.environ['XDG_CONFIG_HOME']
    if conf_home[0] == '~':
        conf_home = os.environ['HOME']+'/'+conf_home[1:]
    return conf_home+'/pkgcrap'

def conf_file_path(name):
    dir_path = conf_dir_path()
    if not os.path.isdir(dir_path):
        os.mkdir(dir_path)
    return dir_path+'/'+name

def maintained_packages_get():
    with open(conf_file_path('maintained.txt'), 'r') as fp:
        pkg_names = fp.read().split('\n')
    repos = parse.repos()
    repos.load()
    packages = []
    for pkg_name in pkg_names:
        pkg_info = pkg_name.replace('::', '/').split('/')
        repo = repos.repos[pkg_info[2]]
        if not repo.loaded:
            repo.load()
        cat = repo.categories[pkg_info[0]]
        if not cat.loaded:
            cat.load()
        packages.append(cat.packages[pkg_info[1]])
    return packages

def blacklisted_tags_get():
    blacklisted_tags = []
    with open(conf_file_path('eviltags.txt'), 'r') as fp:
        for line in fp.read().split('\n'):
            if len(line) > 0 and line[0] == '#':
                continue
            blacklisted_tags.append(line.split(' ',1)[0])
    return blacklisted_tags