"""Google Reader/FreshRSS API code for Youtube2FreshRSS."""

import requests


class FreshRss:
    """FreshRSS greader API helper class."""
    base_path = "/api/greader.php"
    base_api_path = f"{base_path}/reader/api/0/"

    def __init__(self, baseurl, username, password):
        self.base_url = baseurl
        self.username = username
        self.password = password
        self.auth_header = ""

    def get_auth_token(self):
        "Retrieve greader auth token"
        res = requests.post(
            f"{self.base_url}{self.base_path}/accounts/ClientLogin",
            params={'Email': self.username, 'Passwd': self.password},
            timeout=15
        )
        auth_token = res.text.split("=")[-1].strip()
        self.auth_header = f"GoogleLogin auth={auth_token}"

    def post(self, path, params=None, data=None):
        "Make a POST request to a greader API."
        res = requests.post(
            f"{self.base_url}{self.base_api_path}{path}",
            data=data,
            params=params,
            headers={"Authorization": self.auth_header},
            timeout=15
        )
        return res.text

    def get(self, path, params=None):
        """Make a GET request to a greader API."""
        res = requests.get(
            f"{self.base_url}{self.base_api_path}{path}?output=json",
            params=params,
            headers={"Authorization": self.auth_header},
            timeout=15
        )
        return res.json()

    def get_feeds(self):
        "Retrieve greader subscriptions."
        return self.get("/subscription/list")

    def add_feed(self, title, feed_url):
        """Create greader feed."""
        self.post(
            "/subscription/edit",
            data={
                "ac": "subscribe",
                "s": "feed/" + feed_url,
                "t": title,
                "a": "user/-/label/YouTube"
            }
        )

    def remove_feed(self, feed_url):
        """Remove greader feed."""
        self.post(
            "/subscription/edit",
            data={
                "ac": "unsubscribe",
                "s": "feed/" + feed_url,
            }
        )

    def parse_feeds_urls(self, feeds):
        """Parse active feed URLs from feeds list."""
        urls = []

        for feed in feeds['subscriptions']:
            if feed['categories'][0]['id'] == "user/-/label/YouTube":
                urls.append(feed['url'])

        return urls