import time
from urllib.parse import urljoin, urlparse

import requests as RQ


class QBittorrent(object):

    status_map = {
        "downloading": ("Downloading", "primary"),
        "uploading": ("Seeding", "success"),
        "forcedDL": ("Downloading [Forced]", "primary"),
        "forcedUP": ("Seeding [Forced]", "success"),
        "pausedDL": ("Downloading [Paused]", "secondary"),
        "pausedUP": ("Seeding [Paused]", "secondary"),
        "stalledDL": ("Downloading [Stalled]", "warning"),
        "stalledUP": ("Seeding [Stalled]", "warning"),
        "metaDL": ("Downloading metadata", "primary"),
        "error": ("Error", "danger"),
        "missingFiles": ("Missing Files", "danger"),
        "queuedUP": ("Seeding [Queued]", "info"),
        "queuedDL": ("Downloading [Queued]", "info"),
    }

    tracker_status = {
        0: ("Disabled", "secondary"),
        1: ("Not contacted", "info"),
        2: ("Working", "success"),
        3: ("Updating", "warning"),
        4: ("Not working", "danger"),
    }

    def __init__(self, url, username, passwd):
        self.url = url
        self.username = username
        self.passwd = passwd
        self.rid = int(time.time())
        self.session = RQ.Session()
        url = urljoin(self.url, "/api/v2/auth/login")
        self.session.post(
            url, data={"username": self.username, "password": self.passwd}
        ).raise_for_status()

    def get(self, url, **kwargs):
        kwargs["rid"] = self.rid
        url = urljoin(self.url, url)
        res = self.session.get(url, params=kwargs)
        res.raise_for_status()
        try:
            return res.json()
        except ValueError:
            return res.text

    def add(self, **kwargs):
        self.rid += 1
        url = urljoin(self.url, "/api/v2/torrents/add")
        ret = self.session.post(url, data=kwargs)
        return ret.text, ret.status_code

    def add_trackers(self, infohash, trackers=None):
        if trackers is None:
            trackers = []
            for tracker_list in [
                "https://newtrackon.com/api/live",
                "https://ngosang.github.io/trackerslist/trackers_best.txt",
            ]:
                try:
                    trackers_res = RQ.get(tracker_list)
                    trackers_res.raise_for_status()
                except Exception as e:
                    print("Error getting tracker list:", e)
                    continue
                trackers += trackers_res.text.split()
        url = urljoin(self.url, "/api/v2/torrents/addTrackers")
        data = {"hash": infohash, "urls": "\n\n".join(trackers)}
        ret = self.session.post(url, data=data)
        ret.raise_for_status()
        return ret.text

    def poll(self, infohash=None):
        if infohash:
            ret = {}
            res = self.get("/api/v2/torrents/info", hashes=infohash)
            ret["info"] = res
            for endpoint in ["properties", "trackers", "webseeds", "files"]:
                url = "/api/v2/torrents/{}".format(endpoint)
                res = self.get(url, hash=infohash)
                if endpoint == "trackers":
                    for v in res:
                        if v["tier"] == "":
                            v["tier"] = -1
                        v["status"] = self.tracker_status.get(
                            v["status"], ("Unknown", "light")
                        )
                        v["total_peers"] = (
                            v["num_seeds"] + v["num_leeches"] + v["num_peers"]
                        )
                        for k in [
                            "num_seeds",
                            "num_leeches",
                            "total_peers",
                            "num_downloaded",
                            "num_peers",
                        ]:
                            if v[k] < 0:
                                v[k] = (-1, "?")
                            else:
                                v[k] = (v[k], v[k])
                ret[endpoint] = res
            ret["info"] = ret["info"][0]
            ret["info"]["state"] = self.status_map.get(
                ret["info"]["state"], (ret["info"]["state"], "light")
            )
            for tracker in ret["trackers"]:
                tracker["name"] = urlparse(
                    tracker["url"]).netloc or tracker["url"]
                tracker["has_url"] = bool(urlparse(tracker["url"]).netloc)
            return ret
        res = self.get("/api/v2/sync/maindata")
        if "torrents" in res:
            for k, v in res["torrents"].items():
                v["hash"] = k
                v["speed"] = v["upspeed"] + v["dlspeed"]
                dl_rate = v["downloaded"] / max(0, time.time() - v["added_on"])
                if dl_rate > 0:
                    v["eta"] = max(0, (v["size"] - v["downloaded"]) / dl_rate)
                else:
                    v["eta"] = 0
                if v["time_active"] == 0:
                    dl_rate = 0
                else:
                    dl_rate = v["downloaded"] / v["time_active"]
                if dl_rate > 0:
                    v["eta_act"] = max(
                        0, (v["size"] - v["downloaded"]) / dl_rate)
                else:
                    v["eta_act"] = 0
                res["torrents"][k] = v
        res["version"] = self.get("/api/v2/app/version")
        self.rid = res["rid"]
        return res

    def status(self, infohash=None):
        self.rid += 1
        return self.poll(infohash)

    def peer_log(self, limit=0):
        return self.get("/api/v2/log/peers")[-limit:]

    def log(self, limit=0):
        return self.get("/api/v2/log/main")[-limit:]

    def test(self):
        self.poll()
        return {}