import logging
import regex
import aiohttp
import textwrap
import traceback
from discord import Activity
from typing import Optional, Union


class Utility:
    """Sing Utility"""

    def __init__(self) -> None:
        self.api_url: str = "http://127.0.0.1:52111/lyric/search"
        self.api_src: str = "DISC-HAVOC"

    def parse_song_input(
        self, song: Optional[str] = None, activity: Optional[Activity] = None
    ) -> Union[bool, tuple]:
        """
        Parse Song (Sing Command) Input

        Args:
            song (Optional[str]): Song to search
            activity (Optional[discord.Activity]): Discord activity, used to attempt lookup if no song is provided

        Returns:
            Union[bool, tuple]
        """
        try:
            if (not song or len(song) < 2) and not activity:
                return False
            if not song and activity:
                if not activity.name:
                    return False  # No valid activity found
                match activity.name.lower():
                    case "codey toons" | "cider" | "sonixd":
                        search_artist: str = " ".join(
                            str(activity.state).strip().split(" ")[1:]
                        )
                        search_artist = regex.sub(
                            r"(\s{0,})(\[(spotify|tidal|sonixd|browser|yt music)])$",
                            "",
                            search_artist.strip(),
                            flags=regex.IGNORECASE,
                        )
                        search_song = str(activity.details)
                        song = f"{search_artist} : {search_song}"
                    case "tidal hi-fi":
                        search_artist = str(activity.state)
                        search_song = str(activity.details)
                        song = f"{search_artist} : {search_song}"
                    case "spotify":
                        if not activity.title or not activity.artist:  # type: ignore
                            """
                            Attributes exist, but mypy does not recognize them.  Ignored.
                            """
                            return False
                        search_artist = str(activity.title)  # type: ignore
                        search_song = str(activity.artist)  # type: ignore
                        song = f"{search_artist} : {search_song}"
                    case "serious.fm" | "cocks.fm" | "something":
                        if not activity.details:
                            song = str(activity.state)
                        else:
                            search_artist = str(activity.state).rsplit("[", maxsplit=1)[
                                0
                            ]  # Strip genre
                            search_song = str(activity.details)
                            song = f"{search_artist} : {search_song}"
                    case _:
                        return False  # Unsupported activity detected

            search_split_by: str = (
                ":" if not (song) or len(song.split(":")) > 1 else "-"
            )  # Support either : or - to separate artist/track
            if not song:
                return False
            search_artist = song.split(search_split_by)[0].strip()
            search_song = "".join(song.split(search_split_by)[1:]).strip()
            search_subsearch: Optional[str] = None
            if (
                search_split_by == ":" and len(song.split(":")) > 2
            ):  # Support sub-search if : is used (per instructions)
                search_song = song.split(search_split_by)[
                    1
                ].strip()  # Reduce search_song to only the 2nd split of : [the rest is meant to be lyric text]
                search_subsearch = "".join(
                    song.split(search_split_by)[2:]
                )  # Lyric text from split index 2 and beyond
            return (search_artist, search_song, search_subsearch)
        except:
            traceback.print_exc()
            return False

    async def lyric_search(
        self, artist: str, song: str, sub: Optional[str] = None
    ) -> Optional[list]:
        """
        Lyric Search

        Args:
            artist (str): Artist to search
            song (str): Song to search
            sub (Optional[str]): Lyrics for subsearch
        Returns:
            Optional[list]
        """
        try:
            if not artist or not song:
                return [("FAIL! Artist/Song not provided",)]

            search_obj: dict = {
                "a": artist.strip(),
                "s": song.strip(),
                "extra": True,
                "src": self.api_src,
            }

            if len(song.strip()) < 1:
                search_obj.pop("a")
                search_obj.pop("s")
                search_obj["t"] = artist.strip()  # Parse failed, try title without sep

            if sub and len(sub) >= 2:
                search_obj["sub"] = sub.strip()

            async with aiohttp.ClientSession() as session:
                async with await session.post(
                    self.api_url,
                    json=search_obj,
                    timeout=aiohttp.ClientTimeout(connect=5, sock_read=10),
                ) as request:
                    request.raise_for_status()
                    response: dict = await request.json()
                    if response.get("err"):
                        return [(f"ERR: {response.get('errorText')}",)]

                    out_lyrics = regex.sub(
                        r"<br>", "\u200b\n", response.get("lyrics", "")
                    )
                    response_obj: dict = {
                        "artist": response.get("artist"),
                        "song": response.get("song"),
                        "lyrics": out_lyrics,
                        "src": response.get("src"),
                        "confidence": float(response.get("confidence", 0.0)),
                        "time": float(response.get("time", -1.0)),
                    }

                    lyrics = response_obj.get("lyrics")
                    if not lyrics:
                        return None
                    response_obj["lyrics"] = textwrap.wrap(
                        text=lyrics.strip(),
                        width=1500,
                        drop_whitespace=False,
                        replace_whitespace=False,
                        break_long_words=True,
                        break_on_hyphens=True,
                        max_lines=8,
                    )
                    response_obj["lyrics_short"] = textwrap.wrap(
                        text=lyrics.strip(),
                        width=750,
                        drop_whitespace=False,
                        replace_whitespace=False,
                        break_long_words=True,
                        break_on_hyphens=True,
                        max_lines=1,
                    )

                    return [
                        (
                            response_obj.get("artist"),
                            response_obj.get("song"),
                            response_obj.get("src"),
                            f"{int(response_obj.get('confidence', -1.0))}%",
                            f"{response_obj.get('time', -666.0):.4f}s",
                        ),
                        response_obj.get("lyrics"),
                        response_obj.get("lyrics_short"),
                    ]
        except Exception as e:
            traceback.print_exc()
            return [f"Retrieval failed: {str(e)}"]