"""The Great Escape is a tool for scraping data from a web forum and
exporting it into a format which can be re-imported."""

import argparse
from urllib.parse import urlparse

from . import scrapers, outputters
from .util import sanitize_title

def main():
    """The Great Escape's entry point."""
    parser = argparse.ArgumentParser(description="Forum scraper")
    parser.add_argument(
        "--scraper",
        dest="scraper",
        help="Scraper to use; if not specified, tries to guess"
    )
    parser.add_argument(
        "--in",
        dest="in",
        required=True,
        help="URL or file to scrape"
    )
    parser.add_argument(
        "--out",
        dest="out",
        help="Path to output; if not specified, is the target forum's url"
    )
    parser.add_argument(
        "--outformat",
        dest="outformat",
        help="Format to output data out; if not specified, default (JSON-based) format is used"
    )
    args = parser.parse_args()

    source = vars(args)['in']
    print("Source is: {}".format(source))
    if args.scraper:
        scraper = scrapers.get_scraper(args.scraper)
        print("Using scraper: {}".format(scraper.__name__))
    else:
        scraper = scrapers.guess_scraper(source)
        print("Guessed scraper: {}".format(scraper.__name__))

    scraped = scraper.scrape(source)
    print(scraped.title)
    out = args.out if args.out else sanitize_title(scraped.title)
    outformat = args.outformat if args.outformat else "json"
    print("Outputting to: {}, using {} outputter".format(out, outformat))
    outputter = outputters.get_outputter(outformat)
    outputter.output(scraped, out)