from typing import Dict

import requests

import config
import consts


def _get_headers() -> Dict[str, str]:
    """Get headers for API request.

    """
    return {
        "Authorization": config.DSPAPI.APP_KEY,
        "Content-Type": "application/json",
        "X-App-Slug": "apollo",
        "X-Client-Type": "job",
        "X-Client-Name": consts.APP_NAME,
    }


def get_playlist_tracks(playlist_id: str) -> Dict[str, str]:
    """Get playlist tracks.

    Args:
        playlist_id: Playlist ID.

    Returns:
        Tracklist.

    """
    url = f"{config.DSPAPI.HOST}/api/delphi/public/track-positions/playlists/current-tracklist"
    offset = 0
    result = {}

    while True:
        response = requests.get(
            url,
            headers=_get_headers(),
            params={"offset": offset, "limit": config.DSPAPI.PAGE_SIZE, "playlist_id": f"spotify_{playlist_id}"},
            timeout=config.DSPAPI.TIMEOUT,
        )
        data = response.json()
        result.update({i["track_id"]: i["isrc"] for i in data.get("items", []) if i.get("isrc") and i.get("track_id")})
        if data.get("next"):
            offset += config.DSPAPI.PAGE_SIZE
        else:
            break

    return result