#! /usr/bin/env python3
#takes directory, converts all .adoc files to html files, copying the resulting html files to an identical directory strucuture, and copies over all non .adoc files unchanged. Optionally outputs as a tar.gz file.

import subprocess, sys, argparse, logging, tempfile
from pathlib import Path

#logging.basicConfig(format='%(asctime)s:%(message)s', level=logging.INFO)
logging.basicConfig(format='%(asctime)s:%(message)s', level=logging.DEBUG)

def parse_arguments():
    parser = argparse.ArgumentParser(description='create a website directory structure by converting .adoc files in a directory strucutre to .html files.')
    parser.add_argument('inputDir', type=Path, help='The directory of adoc files to be copied and converted.')
    parser.add_argument('-o', '--output', type=Path, help='What to name the generated directory or tar file')
    parser.add_argument('-z', '--compress', action='store_true', help='whether to compress the resulting directory to a tar.gz file. can be usefull for scripting to transfer the site to a remote server.')
    args=parser.parse_args()

    if args.output != None and not args.compress:
        #detect based on whether outFile has a .tar.gz filename.
        if args.output.suffixes == ['.tar', '.gz']:
            compress = True
        else:
            compress = False
    else:
        compress = args.compress
    
    if args.output == None:
        outFile = args.inputDir.with_name(args.inputDir.name+'_compiled')
    else:
        outFile=args.output

    if compress and outFile.suffixes != ['.tar', '.gz']:
        logging.debug(f'outFile was {outFile}, corrected because compress flag is set.')
        outFile = outFile.with_suffix('.tar.gz')

    logging.debug(f'inputing from {args.inputDir.resolve()}')
    logging.info(f'outputting to {outFile.resolve()}')
    logging.debug(f'compress is {compress}')

    if args.inputDir.resolve() == outFile.resolve():
        raise FileExistsError('output file cannot have the same path as the input file!')

    return args.inputDir, outFile, compress
parse_arguments()