import subprocess
from pathlib import Path
from abc import ABC, abstractmethod

class BaseService(ABC):

    @abstractmethod
    def name(self):
        pass

    @abstractmethod
    def slugify(self, text):
        pass

    @abstractmethod
    def discover_seasons(self, show_title, source_season=None, source_url=None):
        pass

    @abstractmethod
    def normalize_episode(self, source_title, output_title, entry):
        pass

    def download_episode(self, episode, entry, download_dir):
        """
        Common download logic using yt-dlp.
        Services can override this if they need specific flags.
        """
        # Create folder: "Show Name" (removing dots used in filenames)
        show_folder = Path(download_dir) / episode["show"].replace(".", " ")
        show_folder.mkdir(parents=True, exist_ok=True)

        output_template = str(show_folder / f"{episode['filename']}.%(ext)s")

        url = entry.get("webpage_url") or entry.get("url")
        if not url:
            print("  ❌ No URL found in entry")
            return False

        # Build command - using --netrc as a default safe bet for all
        cmd = [
            "yt-dlp",
            "--netrc",
            "--no-progress",
            "-o", output_template,
            url
        ]

        result = subprocess.run(cmd)
        return result.returncode == 0