from dataclasses import dataclass
from logging import getLogger
from os import PathLike
from typing import List, Optional

from semver import Version

logger = getLogger(__name__)

class StellarisVersion(Version):
    """This class represents a Stellaris version.

    Attributes:
        major (int): The major version number.
        minor (int): The minor version number.
        patch (int): The patch version number.
        codename (str): The codename of the version.
    """
    def __init__(self, **kwargs) -> None:
        # Build a dictionary of the arguments except prerelease and build
        super().__init__(**kwargs)

    @property
    def codename(self) -> str:
        return self.CODENAME_LIST.get(f"{self.major}.{self.minor}", "Unknown")

    CODENAME_LIST = {
        "1.0": "Release",
        "1.1": "Clarke",
        "1.2": "Asimov",
        "1.3": "Heinlein",
        "1.4": "Kennedy",
        "1.5": "Banks",
        "1.6": "Adams",
        "1.7": "Bradbury",
        "1.8": "Čapek",
        "1.9": "Boulle",
        "2.0": "Cherryh",
        "2.1": "Niven",
        "2.2": "Le Guin",
        "2.3": "Wolfe",
        "2.4": "Lee",
        "2.5": "Shelley",
        "2.6": "Verne",
        "2.7": "Wells",
        "2.8": "Butler",
        "3.0": "Dick", # lol
        "3.1": "Lem",
        "3.2": "Herbert",
        "3.3": "Libra",
        "3.4": "Cepheus",
        "3.5": "Fornax",
        "3.6": "Orion",
        "3.7": "Canis Minor",
        "3.8": "Gemini",
        "3.9": "Caelum",
        "3.10": "Pyxis",
        "3.11": "Eridanus",
        "3.12": "Andromeda",
        "3.13": "Vela",
        "3.14": "Circinus",
    }

    def __str__(self) -> str:
        version = self.codename
        version += f" {self.major}.{self.minor}.{self.patch}"
        if self.prerelease:
            version += f"-{self.prerelease}"
        if self.build:
            version += f"+{self.build}"
        return version

    def to_tuple(self) -> tuple:
        return (self.codename, self.major, self.minor, self.patch, self.prerelease, self.build)

    def to_dict(self) -> dict:
        return {
            "codename": self.codename,
            "major": self.major,
            "minor": self.minor,
            "patch": self.patch,
            "prerelease": self.prerelease,
            "build": self.build
        }

@dataclass
class Mod:
    """This class represents a Stellaris mod's descriptor file.

    Attributes:
            name (str): The name of the mod.
            path (PathLike): The path to the mod's directory.
            dependencies (List[str]): A list of the mod's dependencies.
            picture (PathLike): The path to the mod's thumbnail picture.
            tags (List[str]): A list of the mod's tags.
            version (str): The mod's version.
            supported_version (StellarisVersion): The version of Stellaris the mod supports.
            remote_file_id (int): The mod's remote file ID.
    """
    name: str
    path: Optional[PathLike] = None
    dependencies: Optional[List[str]] = None
    picture: Optional[PathLike] = None
    tags: Optional[List[str]] = None
    version: Optional[str] = None
    supported_version: Optional[StellarisVersion] = None
    remote_file_id: Optional[int] = None

    def __post_init__(self) -> None:
        if self.tags and len(self.tags) > 10:
            logger.warning("Mod %s has more than 10 tags. This will prevent the mod from being uploaded to the Steam Workshop and Paradox Mods.", self.name)
        if self.supported_version and isinstance(self.supported_version, str):
            if self.supported_version.startswith("v"):
                self.supported_version = self.supported_version[1:]
            self.supported_version = StellarisVersion.parse(version=self.supported_version)

    def __str__(self) -> str:
        return self.name

    @classmethod
    def from_dict(cls, mod_dict: dict) -> "Mod":
        return cls(**mod_dict)

    def to_dict(self) -> dict:
        return {
            "name": self.name,
            "path": self.path,
            "dependencies": self.dependencies,
            "picture": self.picture,
            "tags": self.tags,
            "version": self.version,
            "supported_version": self.supported_version.to_dict() if self.supported_version else None,
            "remote_file_id": self.remote_file_id,
        }

def parse(path: PathLike) -> Mod:
    """Parse a Stellaris mod descriptor file into a Mod object."""
    config = {}
    current_key = None
    in_multiline_value = False
    multiline_value = []

    with open(path, 'r', encoding='UTF-8') as file:
        lines = file.readlines()

    for line in lines:
        line = line.strip()

        if in_multiline_value:
            if line == '}':
                in_multiline_value = False
                config[current_key] = multiline_value
            else:
                multiline_value.append(line.strip('"'))
        elif '=' in line:
            key, value = line.split('=', 1)
            key = key.strip()
            value = value.strip().strip('"')
            if value == '{':
                in_multiline_value = True
                current_key = key
                multiline_value = []
            else:
                config[key] = value

    return Mod.from_dict(config)