"""
This module contains the functions that are used to
create the config directory and copy the assets to the app directory.
"""

import os
from pathlib import Path
import shutil

from swingmusic import settings
from swingmusic.config import UserConfig
from swingmusic.utils.filesystem import get_home_res_path


class CopyFiles:
    """
    Copies assets to the app directory.
    """

    def __init__(self) -> None:
        assets_dir = "assets"

        if settings.IS_BUILD:
            assets_dir = get_home_res_path("assets")

        files = [
            {
                "src": assets_dir,
                "dest": os.path.join(settings.Paths.get_app_dir(), "assets"),
                "is_dir": True,
            }
        ]

        for entry in files:
            src = os.path.join(os.getcwd(), entry["src"])

            if entry["is_dir"]:
                shutil.copytree(
                    src,
                    entry["dest"],
                    ignore=shutil.ignore_patterns(
                        "*.pyc",
                    ),
                    copy_function=shutil.copy2,
                    dirs_exist_ok=True,
                )
                break

            shutil.copy2(src, entry["dest"])


def create_config_dir() -> None:
    """
    Creates the config directory if it doesn't exist.
    """
    sm_thumb_path = settings.Paths.get_sm_thumb_path()
    lg_thumb_path = settings.Paths.get_lg_thumb_path()
    md_thumb_path = settings.Paths.get_md_thumb_path()
    xsm_thumb_path = settings.Paths.get_xsm_thumb_path()

    small_artist_img_path = settings.Paths.get_sm_artist_img_path()
    md_artist_img_path = settings.Paths.get_md_artist_img_path()
    large_artist_img_path = settings.Paths.get_lg_artist_img_path()

    playlist_img_path = os.path.join("images", "playlists")

    mixes_img_path = settings.Paths.get_mixes_img_path()
    og_mixes_img_path = settings.Paths.get_og_mixes_img_path()
    md_mixes_img_path = settings.Paths.get_md_mixes_img_path()
    sm_mixes_img_path = settings.Paths.get_sm_mixes_img_path()

    dirs = [
        "",  # creates the config folder
        sm_thumb_path,
        lg_thumb_path,
        md_thumb_path,
        xsm_thumb_path,
        "plugins/lyrics",
        playlist_img_path,
        md_artist_img_path,
        small_artist_img_path,
        large_artist_img_path,
        mixes_img_path,
        og_mixes_img_path,
        md_mixes_img_path,
        sm_mixes_img_path,
    ]

    for dir in dirs:
        path = os.path.join(settings.Paths.get_app_dir(), dir)
        exists = os.path.exists(path)

        if not exists:
            # exist_ok=True to create parent directories if they don't exist
            os.makedirs(path, exist_ok=True)
            os.chmod(path, 0o755)

    # Empty files to create
    empty_files = [
        # artist split ignore list
        Path(settings.Paths.get_app_dir()) / UserConfig._artist_split_ignore_file_name,
    ]

    for file in empty_files:
        if not file.exists():
            file.touch()

    # copy assets to the app directory
    CopyFiles()