import os
import argparse
from userconfig.cfgfile import Conf
from userconfig.tools import Debug
from userconfig import Userconfig
import sys
import subprocess

def main():
    parser = argparse.ArgumentParser(prog='userconfig',
                                     description='Manages configuration files, usually in the user home directory')

    parser.add_argument('-v',
                        help='Verbosity level (multiple v for higher level)',
                        dest='verbose', action='count', default=0)
    parser.add_argument('-f', '--file',
                        help='userconfig2.cfg config file',
                        dest='file', action='store')
    cmdline = parser.parse_args()
    debug = Debug()
    # debug.set_verbose(cmdline.verbose)
    # cfg = Conf(filename=cmdline.file, debug=debug)
    debug.set_verbose(4)
    cfg = Conf(filename='/Users/lysis/userconfig2-test.conf', debug=debug)
    # cfg = Conf(filename='/Users/lysis/etc/userconfig2.conf', debug=debug)
    uc = Userconfig(cfg)

    cfg.debug.stdout(f"Verbose level is {cfg.debug.get_verbose()}", 1, 'STANDARD')
    configdir = cfg.get("configdir")
    # configdir is the root of the userconfig files
    # Directory structure:
    # configdir/
    # |-- userconfig2.conf
    # |-- package1/
    #     |- package.conf
    #     |- 001_Arch_Linux/
    #        |- file1
    #        |- file2
    #     |- 002_Host_glitters/
    #        |- file1
    #     |- 003_all/
    #        |- file2
    #
    # Terminology:
    # directories below configdir are packages, packages contain directories categorizing for which host/arch they
    # are fitted, below that are files which are installed at the destination
    #
    # directory names in packages:
    # [Number]_[category]_[value]
    # Number: can have leading zeros for better sorting in directory structure, will be used for sorting and priority
    # category: which kind of match we are looking for. currently: Arch for `uname -s`, Host for `hostname -s`
    # value: optional, if category requires input, for example: Arch_Linux
    #        can be empty for example if category is all (no match needed, we want this always to be applied)

    cfg.debug.stdout(f'configdir: {configdir}', 1)
    for package in os.scandir(configdir):
        if not package.is_dir():
            cfg.debug.stdout(f'{package.path} is not a directory, skipping', 2, 'WARNING')
            continue
        if package.name in ['.svn', '.git']:
            cfg.debug.stdout(f'{package.path} is a svn or git data directory, skipping', 2, 'WARNING')
        if os.path.isfile(f'{package.path}/.ignore'):
            cfg.debug.stdout(f'{package.path} contains .ignore, skipping', 2, 'WARNING')
            continue
        cfg.debug.stdout(f'============ start {package.path} ============', 2)
        (category_dirs, dir_config) = uc.process_package_dir(package.path)
        cfg.debug.stdout(f'Got categories: {category_dirs}', 2)
        host_category_dirs = uc.filter_categories(category_dirs)
        cfg.debug.stdout(f'Filtered categories for host: {host_category_dirs}', 2)
        file_list = dict()
        for c in host_category_dirs:
            file_list = uc.process_category_dir(c, file_list)
        cfg.debug.stdout(f'Found files: {file_list}', 2)
        if len(file_list) and os.access(f'{package.path}/install.sh', os.X_OK):
            cfg.debug.stdout(f'Execute {package.path}/install.sh', 2)
            subprocess.call([f'{package.path}/install.sh'])
        for file in file_list:
            dest = f'{dir_config.get(section="Main", option="dest")}/{file}'
            try:
                comment_string = dir_config.get(section="Main", option="commentstring")
            except ValueError:
                cfg.debug.stdout(f'commentstring does not exist in config file {dir_config._cfgfiles}', 0, 'ERROR')
                sys.exit(1)
            # Make sure all directories for destination file exist
            uc.create_destination_directories(dir_config.get(section="Main", option="dest"))
            temp_filename = uc.build_file(file_list[file], dest, comment_string)
            uc.copy_file(temp_filename, dest, comment_string)
        cfg.debug.stdout(f'============   end {package.path} ============\n\n', 2)

if __name__ == '__main__':
    main()