from pathlib import Path
import shutil
from core.database import DatabaseManager

MEDIA_DIR = Path("media")
DEFAULT_ICON = Path("media/default_icon.jpg")

class MediaRepository:
    def __init__(self, db: DatabaseManager):
        self.db = db

    def sync_media(self):
        disk_colors = {d.name for d in MEDIA_DIR.iterdir() if d.is_dir()}
        db_colors = {c["name"] for c in self.db.get_all_colors()}

        # usuwanie brakujących kolorów
        for missing in db_colors - disk_colors:
            self.db.delete_color(missing)

        # dodawanie nowych kolorów
        for color in disk_colors - db_colors:
            has_icon = (MEDIA_DIR / color / "icon.jpg").exists()
            self.db.add_color(color, has_icon=has_icon)

        # sprawdzanie plików dla każdego koloru
        for color in disk_colors:
            color_id = self.db.get_color_id(color)
            if color_id is None:
                continue
            color_dir = MEDIA_DIR / color

            disk_files = {f.name for f in color_dir.iterdir() if f.is_file() and f.name != "icon.jpg"}
            db_files = {m["filename"] for m in self.db.get_media_for_color(color_id)}

            # usuń brakujące
            for missing in db_files - disk_files:
                self.db.delete_media(color_id, missing)

            # dodaj nowe
            for new in disk_files - db_files:
                ftype = "photo" if Path(new).suffix.lower() in [".jpg", ".png"] else "video"
                self.db.add_media(color_id, new, ftype)

    def add_color(self, name: str, icon_path: Path | None = None):
        color_dir = MEDIA_DIR / name
        color_dir.mkdir(parents=True, exist_ok=True)

        icon_file = color_dir / "icon.jpg"
        if icon_path and icon_path.exists():
            shutil.copy(icon_path, icon_file)
        else:
            shutil.copy(DEFAULT_ICON, icon_file)

        self.db.add_color(name, has_icon=True)

    def remove_color(self, name: str):
        if (MEDIA_DIR / name).exists():
            shutil.rmtree(MEDIA_DIR / name)
        self.db.delete_color(name)

    def add_file(self, color: str, file_path: Path):
        target_dir = MEDIA_DIR / color
        target_dir.mkdir(exist_ok=True)
        target_file = target_dir / file_path.name
        shutil.copy(file_path, target_file)

        ftype = "photo" if file_path.suffix.lower() in [".jpg", ".png"] else "video"
        color_id = self.db.get_color_id(color)
        if color_id is not None:
            self.db.add_media(color_id, file_path.name, ftype)

    def remove_file(self, color: str, filename: str):
        file_path = MEDIA_DIR / color / filename
        if file_path.exists():
            file_path.unlink()

        color_id = self.db.get_color_id(color)
        if color_id is not None:
            self.db.delete_media(color_id, filename)