from typing import Optional

from apollo_messages_views.config import MESSAGE_PREFIX
from apollo_messages_views.constants.base import Emoji
from apollo_messages_views.constants.playlists import DspName
from apollo_messages_views.utils.misc import get_artists_str, get_flag


def get_playlist_entry_body(
    dsp: str, country_code: Optional[str], content: dict, unknown_flag_as: str = "", is_starred: bool = False
) -> str:
    playlist_name = content["playlist"]["name"]
    if is_starred:
        playlist_name = f"⭐ {playlist_name}"

    body = (
        f"{Emoji.FIRE.value} {get_artists_str(content['track']['artists'])} - {content['track']['name']} "
        f"has been added to {playlist_name} at position {content['current_position']} on "
        f"{DspName[dsp]} {get_flag(country_code, unknown_as=unknown_flag_as)}"
    )
    return MESSAGE_PREFIX + body


def get_playlist_update_body(
    dsp: str,
    country_code: Optional[str],
    content: dict,
    unknown_flag_as: str = "",
) -> str:
    body = (
        f"⭐ {content['playlist']['name']} tracklist has been updated on {DspName[dsp]} "
        f"{get_flag(country_code, unknown_as=unknown_flag_as)}"
    )
    return MESSAGE_PREFIX + body


def get_playlist_exit_body(
    dsp: str, country_code: Optional[str], content: dict, unknown_flag_as: str = "", is_starred: bool = False
) -> str:
    playlist_name = content["playlist"]["name"]
    if is_starred:
        playlist_name = f"⭐ {playlist_name}"

    body = (
        f"{Emoji.EXCLAMATION_POINT.value} {get_artists_str(content['track']['artists'])} - {content['track']['name']} "
        f"has been removed from {playlist_name} at position {content['previous_position']} on "
        f"{DspName[dsp]} {get_flag(country_code, unknown_as=unknown_flag_as)}"
    )
    return MESSAGE_PREFIX + body


def get_playlist_major_move_body(
    dsp: str, country_code: Optional[str], content: dict, unknown_flag_as: str = "", is_starred: bool = False
) -> str:
    playlist_name = content["playlist"]["name"]
    if is_starred:
        playlist_name = f"⭐ {playlist_name}"

    current_position = content['current_position']
    previous_position = content['previous_position']

    moved_up = current_position < previous_position
    moved_positions = abs(current_position - previous_position)

    body = (
        f"{Emoji.FIRE.value if moved_up else Emoji.EXCLAMATION_POINT.value} "
        f"{get_artists_str(content['track']['artists'])} - {content['track']['name']} "
        f"has moved {'up' if moved_up else 'down'} {moved_positions} spots on {playlist_name} to position "
        f"{current_position} on {DspName[dsp]} {get_flag(country_code, unknown_as=unknown_flag_as)}"
    )
    return MESSAGE_PREFIX + body