#!/usr/bin/env python3
import click
import feedparser
import requests
import time


def sanitize(f):
    Badswede = ["å","Å", "ä","Ä", "ö","Ö"]
    Goodswede = ["a","A","a","A","o","O"]
    Dividers = [" ", "/", ","]
    Specchar = ["-", "–", "-","#", "!", ":"]
    for i, c in enumerate(f):

        if c in Badswede:
            f = f.replace(Badswede[Badswede.index(c)], Goodswede[Badswede.index(c)])
        if c in Dividers:
            f = f.replace(c, "_")

        if c in Specchar:
            f = f.replace(c, "")
    return f

def filenamer(filename, date, filetype, f, d):
    if f is True:
        filename = sanitize(filename)
    if d is True and f is False:
        filename = date
    elif d is True and f is True:
        filename = date+"_" + filename
    filename += filetype
    return filename

@click.command()
@click.argument('feed',
        #help='RSS-feed att ladda ned'
        )
@click.option('--filetype',
        default='.mp3',
        help='Free text for filetype, ie \'.mp3\'')
@click.option('--tag',
        default='enclosure',
        #help='Specificera url-taggen'
        )
@click.option('-f',is_flag=True, default=False,
        help='Set to include filename in output file'
        )
@click.option('-d', is_flag=True, default=False,
        help='Set to include date in output file'
        )
def __main__(feed, tag, filetype, f, d):
    PodFeed = feedparser.parse(feed)
    for post in PodFeed.entries:
        print("Processing "+post.title)
        date = time.strftime("%y%m%d", post.published_parsed)
        filename = filenamer(post.title,date,filetype, f, d)
        url=post.enclosures[0].href
        try:
            with open(filename, 'r') :
               exists=True
               print(filename + " already exists")

        except IOError:
                 exists=False

        if exists != True:
            print("Downloading and saving as "+filename)
            r = requests.get(url, allow_redirects=True)
            open(filename, 'wb').write(r.content)


if __name__ == "__main__":
    __main__()