"""
Commands for managing the Guild's settings.
"""

from typing import Optional

import nextcord
from nextcord.ext import commands

from highscores import highscores_data  # pylint: disable=import-error


class SettingsManagementCog(commands.Cog, name="Settings Management"):
    """
    Class holds commands for managing Guild's settings.
    """

    def __init__(self) -> None:
        """
        Default constructor for SettingsManagement class. Does nothing.
        """

    @nextcord.slash_command(default_member_permissions=nextcord.Permissions(administrator=True))
    async def register(self, interaction: nextcord.Interaction):
        """
        Parent slash command, never called.
        """

    @register.subcommand(description="Registers the channel for perminent highscores messages.")
    async def highscore(
        self,
        interaction: nextcord.Interaction,
        channel: Optional[nextcord.abc.GuildChannel] = nextcord.SlashOption(
            description="Channel to register",
            required=False,
            channel_types=[nextcord.ChannelType.text],
            default=None,
        ),
    ) -> None:
        """
        Command function to register the highscore printing channel.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            channel (nextcord.abc.GuildChannel, optional): Channel to register
                Is a SlashOption. Limited to text channels, Defaults to None.
        """
        if not channel:
            channel = interaction.channel
        channel_id = channel.id
        guild = highscores_data.get_guild(interaction.guild_id)
        await interaction.send(f"Registered <#{channel_id}>.", ephemeral=True)
        guild.highscore_channel = channel_id
        highscores_data.save_guild_data(guild)

    @register.subcommand(description="Registers the channel for submission messages.")
    async def submission(
        self,
        interaction: nextcord.Interaction,
        channel: Optional[nextcord.abc.GuildChannel] = nextcord.SlashOption(
            description="Channel to register",
            required=False,
            channel_types=[nextcord.ChannelType.text],
            default=None,
        ),
    ) -> None:
        """
        Command function to register the submission message channel.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            channel Optional[nextcord.abc.GuildChannel], optional): Channel to register
                Is a SlashOption. Limited to text channels, Defaults to None.
        """
        if not channel:
            channel = interaction.channel
        channel_id = channel.id
        guild = highscores_data.get_guild(interaction.guild_id)
        await interaction.send(f"Registered <#{channel_id}>.", ephemeral=True)
        guild.submission_channel = channel_id
        highscores_data.save_guild_data(guild)

    @register.subcommand(description="Registers the channel for verification messages.")
    async def verify(
        self,
        interaction: nextcord.Interaction,
        channel: Optional[nextcord.abc.GuildChannel] = nextcord.SlashOption(
            description="Channel to register",
            required=False,
            channel_types=[nextcord.ChannelType.text],
            default=None,
        ),
    ) -> None:
        """
        Command function to register the verification message channel.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            channel (Optional[nextcord.abc.GuildChannel], optional): Channel to register
                Is a SlashOption. Limited to text channels, Defaults to None.
        """
        if not channel:
            channel = interaction.channel
        channel_id = channel.id
        guild = highscores_data.get_guild(interaction.guild_id)
        await interaction.send(f"Registered <#{channel_id}>.", ephemeral=True)
        guild.verification_channel = channel_id
        highscores_data.save_guild_data(guild)

    @nextcord.slash_command(default_member_permissions=nextcord.Permissions(administrator=True))
    async def set(self, interaction: nextcord.Interaction):
        """
        Parent slash command for setting settings. Never called.
        """

    @set.subcommand(
        description="Set character length for a category. Can cut off username/score. Affects all categories."
    )
    async def category_pad_length(
        self,
        interaction: nextcord.Interaction,
        length: Optional[int] = nextcord.SlashOption(
            description="Number of characters.", required=True, default=26
        ),
    ) -> None:
        """
        Changes guild's category pad length.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            length (Optional[int]): Number of characters. Is SlashOption. Defaults to 26.
        """

        guild = highscores_data.get_guild(interaction.guild_id)
        guild.category_pad_length = length
        highscores_data.save_guild_data(guild)
        await interaction.response.send_message(
            f"Category pad length set to {length}", ephemeral=True
        )

    @set.subcommand(description="Set username length. Limits all submissions to this length.")
    async def username_length(
        self,
        interaction: nextcord.Interaction,
        length: Optional[int] = nextcord.SlashOption(
            description="Number of characters.", required=True, default=12
        ),
    ) -> None:
        """
        Changes guild's username length limit.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            length (Optional[int]): Number of charactesr. Is SlashOption. Defaults to 12.
        """
        guild = highscores_data.get_guild(interaction.guild_id)
        guild.username_length = length
        highscores_data.save_guild_data(guild)
        await interaction.response.send_message(f"Username length set to {length}", ephemeral=True)