from html.parser import HTMLParser
from urllib.request import urlopen


class YouTube:
    y, z = {}, {}  # empty on every invokation
    video_type = ""

    def mesg(self, msg, t=None):
        self.util.mesg(msg, t)

    def match_urls(self, str):
        r = [
            i
            for i in str.split()
            if "https://youtu.be/" in i
            or "https://www.youtube.com/watch?v=" in i
            or "https://m.youtube.com/watch?v=" in i
            or "https://youtube.com/watch?v=" in i
            or "https://www.youtube.com/embed/" in i
            or "https://www.youtube-nocookie.com/embed/" in i
            or "https://music.youtube.com/watch?v=" in i
            or "https://youtube.com/shorts/" in i
            or "https://www.youtube.com/shorts/" in i
            or "https://www.youtube.com/clip/" in i
            or "https://youtube.com/clip/" in i
        ]
        r = list(dict.fromkeys(r))
        n = 0
        for i in r:
            if not i.startswith("http"):
                r.pop(n)
            n += 1

        return r

    def is_embed(str):
        return str.startswith("https://www.youtube.com/embed/") or str.startswith(
            "https://www.youtube-nocookie.com/embed/"
        )

    def is_ytmusic(str):
        return str.startswith("https://music.youtube.com/watch?v=")

    def is_ytshorts(str):
        return str.startswith("https://youtube.com/shorts/") or str.startswith(
            "https://www.youtube.com/shorts/"
        )

    def is_clip(str):
        return str.startswith("https://youtube.com/clip/") or str.startswith(
            "https://www.youtube.com/clip/"
        )

    class parseprop(HTMLParser):
        def __init__(self):
            print("yt parse init")
            HTMLParser.__init__(self)
            self.itemprops_list = ["name", "duration", "uploadDate", "interactionCount"]
            if YouTube.video_type == "clip":
                self.itemprops_list += ["description"]
                print("it is a clip!")

        def handle_starttag(self, tag, attrs):
            if (tag != "meta" and tag != "link") or (
                (
                    [i for i in attrs if "itemprop" in i] == []
                    and ("name", "title") not in attrs
                )
                or (tag == "meta" and ("itemprop", "name") in attrs)
            ):
                return
            global z
            # print(self,tag,attrs)
            for k, v in attrs:
                if k == "itemprop":
                    if v not in self.itemprops_list:
                        return
                    x = [v]
                    if tag == "link" and v == "name":
                        x = ["channelName"]
                elif k == "content":
                    if attrs[0][1] == "interactionCount":
                        v = int(v)
                    x += [v]
                elif k == "name" and v == "title":
                    x = [v]
                else:
                    return
            z.update({x[0]: x[1]})
            # print(x[0],"=",x[1])

    def fmt_dur(dur):
        h, m, s = 0, 0, 0
        m = dur[2:].split("M")
        s = int(m[1][:-1])
        m = int(m[0])
        if m >= 60:
            h = m // 60
            m = round((m / 60 - h) * 60)
            return f"{h}h {m}m {s}s"
        elif h == 0 and m == 0 and s == 0:
            return "LIVE"
        elif m == 0 and s != 0:
            return f"{s}s"
        elif s == 0:
            return f"{m}m"
        else:
            return f"{m}m {s}s"

    def yt(self, url):
        # self.util.mesg("dbg hello")
        url = url.rstrip("\x01")
        self.video_type = (
            "clip"
            if self.is_clip(url)
            else "shorts"
            if self.is_ytshorts(url)
            else "music"
            if self.is_ytmusic(url)
            else "embed"
            if self.is_embed(url)
            else "video"
        )
        video_type = self.video_type
        if video_type == "embed":
            videoId = url.split("/")[4]
            url = f"https://www.youtube.com/watch?v={videoId}"
        elif video_type == "music":
            for i in url.split("?")[1].split("&"):
                if i[0:2] == "v=":
                    videoId = i[2:]
            url = f"https://www.youtube.com/watch?v={videoId}"
        elif video_type == "shorts":
            videoId = url.split("?")[0].split("/")[-1]
            url = f"https://www.youtube.com/watch?v={videoId}"
        global y, z
        y, z = {}, {}
        p = self.parseprop()
        # use premature optimization? it should be SLIGHTLY faster
        if self.premature_optimization:
            url_h, data = urlopen(url), b""
            # <body> appears on approximately line 21 or 22, so we read 24 lines to be safe (23-25 should be license comment)
            # I tried to read byte amounts but it's hard to make sure no invalid utf8 bytes happen due to partial reads
            for i in range(24):
                data += url_h.readline()
            data = data.decode()  # bytes to utf-8
            url_h.close()
        else:
            # just read all of the html
            data = urlopen(url).read().decode()
        # print(f"\x1b[31m my data is: {data}\x1b[0m")
        p.feed(data)
        if y == z == {}:
            irc_string = "[\x0304Youtube\x03] \x0307ERROR:\x0308 got no data from server! \x0315(check your URL for typos!)\x03"
            ansi_string = "[\x1b[31mYoutube\x1b[0m] \x1b[33;2mERROR:\x1b[33;1m got no data from server! \x1b[37;2m(check your URL for typos!)\x1b[0m"
            print(ansi_string)
            return irc_string, True
        z.update({"duration": self.fmt_dur(z["duration"])})
        y, z = z, {}
        irc_string = f"[\x0303Youtube\x03] \x02{y['title']}\x02 ({y['duration']}) uploaded by \x1d{y['channelName']}\x1d on {y['uploadDate']}, {y['interactionCount']:,} views"
        ansi_string = f"[\x1b[32mYoutube\x1b[0m] \x1b[1m{y['title']}\x1b[0m ({y['duration']}) uploaded by \x1b[03m{y['channelName']}\x1b[0m on {y['uploadDate']}, {y['interactionCount']:,} views"
        print(ansi_string)
        return irc_string, False


if __name__ == "__main__":
    import sys

    YouTube.premature_optimization = False
    YouTube.yt(YouTube, sys.argv[1])