"""NFO-Generator für Jellyfin (Kodi/NFO-Schema)."""

from pathlib import Path
from typing import List
from xml.dom.minidom import getDOMImplementation


class NFOGenerator:
    def __init__(self):
        self.dom_impl = getDOMImplementation()
    
    def _create_element(self, doc, name: str, text: str = None) -> None:
        """Hilfsfunktion für Element-Erstellung."""
        element = doc.createElement(name)
        if text:
            element.appendChild(doc.createTextNode(str(text)))
        return element
    
    def generate_movie_nfo(self, title: str, year: int, 
                          overview: str = "", rating: float = 0.0,
                          runtime: int = 0, genres: List[str] = None,
                          director: str = "", writer: str = "",
                          actors: List[str] = None, studio: str = "",
                          premiered: str = "", mpaa: str = "") -> str:
        """Generiere movie.nfo für Filme."""
        doc = self.dom_impl.createDocument(None, "movie", None)
        root = doc.documentElement
        
        root.appendChild(self._create_element(doc, "title", title))
        root.appendChild(self._create_element(doc, "year", year))
        root.appendChild(self._create_element(doc, "plot", overview))
        root.appendChild(self._create_element(doc, "rating", rating))
        root.appendChild(self._create_element(doc, "runtime", runtime))
        
        if genres:
            for genre in genres:
                root.appendChild(self._create_element(doc, "genre", genre))
        
        if director:
            root.appendChild(self._create_element(doc, "director", director))
        
        if writer:
            root.appendChild(self._create_element(doc, "writer", writer))
        
        if actors:
            for actor in actors:
                actor_node = doc.createElement("actor")
                actor_node.appendChild(self._create_element(doc, "name", actor))
                root.appendChild(actor_node)
        
        if studio:
            root.appendChild(self._create_element(doc, "studio", studio))
        
        if premiered:
            root.appendChild(self._create_element(doc, "premiered", premiered))
        
        if mpaa:
            root.appendChild(self._create_element(doc, "mpaa", mpaa))
        
        # Attribution
        root.appendChild(self._create_element(doc, "details", "Source: TMDB"))
        
        return doc.toprettyxml(indent="  ")
    
    def generate_series_nfo(self, title: str, year: int,
                           overview: str = "", rating: float = 0.0,
                           genres: List[str] = None, studio: str = "",
                           premiered: str = "") -> str:
        """Generiere series.nfo für Serien."""
        doc = self.dom_impl.createDocument(None, "tvshow", None)
        root = doc.documentElement
        
        root.appendChild(self._create_element(doc, "title", title))
        root.appendChild(self._create_element(doc, "year", year))
        root.appendChild(self._create_element(doc, "plot", overview))
        root.appendChild(self._create_element(doc, "rating", rating))
        
        if genres:
            for genre in genres:
                root.appendChild(self._create_element(doc, "genre", genre))
        
        if studio:
            root.appendChild(self._create_element(doc, "studio", studio))
        
        if premiered:
            root.appendChild(self._create_element(doc, "premiered", premiered))
        
        # Attribution
        root.appendChild(self._create_element(doc, "details", "Source: TMDB"))
        
        return doc.toprettyxml(indent="  ")
    
    def generate_episode_nfo(self, title: str, season: int, episode: int,
                            overview: str = "", rating: float = 0.0,
                            director: str = "", premiered: str = "",
                            writers: List[str] = None) -> str:
        """Generiere episode.nfo für Episoden."""
        doc = self.dom_impl.createDocument(None, "episodedetails", None)
        root = doc.documentElement
        
        root.appendChild(self._create_element(doc, "title", title))
        root.appendChild(self._create_element(doc, "season", season))
        root.appendChild(self._create_element(doc, "episode", episode))
        root.appendChild(self._create_element(doc, "plot", overview))
        root.appendChild(self._create_element(doc, "rating", rating))
        
        if director:
            root.appendChild(self._create_element(doc, "director", director))
        
        if premiered:
            root.appendChild(self._create_element(doc, "premiered", premiered))
        
        if writers:
            for writer in writers:
                root.appendChild(self._create_element(doc, "credits", writer))
        
        return doc.toprettyxml(indent="  ")
    
    def generate_album_nfo(self, title: str, artist: str, year: int,
                          genres: List[str] = None, rating: float = 0.0,
                          review: str = "") -> str:
        """Generiere album.nfo für Musikalben."""
        doc = self.dom_impl.createDocument(None, "musicalbum", None)
        root = doc.documentElement
        
        root.appendChild(self._create_element(doc, "title", title))
        root.appendChild(self._create_element(doc, "artist", artist))
        root.appendChild(self._create_element(doc, "year", year))
        root.appendChild(self._create_element(doc, "rating", rating))
        root.appendChild(self._create_element(doc, "review", review))
        
        if genres:
            for genre in genres:
                root.appendChild(self._create_element(doc, "genre", genre))
        
        # Attribution
        root.appendChild(self._create_element(doc, "details", "Source: MusicBrainz"))
        
        return doc.toprettyxml(indent="  ")
    
    def save_nfo(self, content: str, output_path: Path) -> bool:
        """Speichere NFO-Datei."""
        try:
            output_path.parent.mkdir(parents=True, exist_ok=True)
            with open(output_path, 'w', encoding='utf-8') as f:
                f.write(content)
            return True
        except Exception as e:
            print(f"NFO save error: {e}")
            return False


# Beispieldaten
if __name__ == "__main__":
    nfo_gen = NFOGenerator()
    
    # movie.nfo
    movie_nfo = nfo_gen.generate_movie_nfo(
        title="Inception",
        year=2010,
        overview="A thief who steals corporate secrets through the use of dream-sharing technology is given the inverse task of planting an idea into the mind of a C.E.O.",
        rating=8.8,
        runtime=148,
        genres=["Action", "Sci-Fi", "Thriller"],
        director="Christopher Nolan",
        actors=["Leonardo DiCaprio", "Joseph Gordon-Levitt", "Ellen Page"]
    )
    
    print(movie_nfo)