"""
Commands for managing the tables/categories/scores for a Guild.
"""

from nextcord.ext import commands
import nextcord

from highscores import highscores_data  # pylint: disable=import-error
from utilities.utils import send_highscore_message  # pylint: disable=import-error

from .views.update_username_verify import UpdateUsernameVerifyView


class DataManagementCog(commands.Cog, name="Table Management"):
    """
    Class holds commands for managing the data storage of the highscores.
    """

    def __init__(self, bot: commands.Bot):
        """
        Default constructor for DataManagement class. Sets internal bot variable.
        """
        self._bot: commands.Bot = bot

    @commands.Cog.listener()
    async def on_ready(self):
        """
        Called when cog is loaded. Adds views required for DataManagement commands.
        """
        self._bot.add_view(UpdateUsernameVerifyView())

    @nextcord.slash_command(
        description="Deletes all scores for this guild. Used for testing.",
        default_member_permissions=nextcord.Permissions(administrator=True),
    )
    async def delete_scores(self, interaction: nextcord.Interaction):
        """
        Warning: This command only works for developers.

        A command which deletes all scores in all tables for this guild.
        Command limits to admins to prevent devs from usings on non-test servers.
        """
        # only allow AlwaysCompiling to use.
        # If you are a developer and want to use command, can add name to list
        if interaction.user.id == 206602713511886849:
            for table in highscores_data.get_guild(interaction.guild_id).tables:
                for category in table.categories:
                    category.clear()
            highscores_data.save_guild_data(highscores_data.get_guild(interaction.guild_id))
            await interaction.response.send_message(
                f"Cleared score data for {interaction.guild.name}.", ephemeral=True
            )
        else:
            await interaction.response.send_message(
                "You shouldn't be using this message.", ephemeral=True
            )

    @nextcord.slash_command(
        description="Removes all of a user's scores. Warning: data is destroyed, use with case.",
        default_member_permissions=nextcord.Permissions(administrator=True),
    )
    async def remove_user(
        self,
        interaction: nextcord.Interaction,
        username: str = nextcord.SlashOption(
            description="User to remove scores for. Note: This is not always a user's discord name."
        ),
    ):
        """
        Searches all of guild's scores data for any score from the user. Removes. Updates table
        message is user was removed from that table.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            username (str): User to remove from highscores
        """
        guild = highscores_data.get_guild(interaction.guild_id)

        user_was_found: bool = False

        # remove user from all tables and categories
        for table in guild.tables:
            table_updated: bool = False
            for category in table.categories:
                # user has a score in category
                if category.remove_score(username):
                    user_was_found = True
                    table_updated = True

            if table_updated:
                await send_highscore_message(
                    interaction.guild.get_channel(guild.highscore_channel), guild, table
                )

        if not user_was_found:
            await interaction.send(f'User "{username}" was not found.', ephemeral=True)
        else:
            await interaction.send(f'User "{username}" was removed from all tables.')
            highscores_data.save_guild_data(guild)

    @nextcord.slash_command(description="Request a username update. Admins must approve.")
    async def update_username(
        self,
        interaction: nextcord.Interaction,
        old_username: str = nextcord.SlashOption(
            description="Username currently stored in highscores.", required=True
        ),
        new_username: str = nextcord.SlashOption(
            description="Username to update to.", required=True
        ),
    ):
        """
        Creates a request to send to admins for changing a username. Uses
        UpdateUsernameVerifyView to do the work.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command
            old_username (str): Username to replace.
            new_username (str): Username to replace old with.
        """
        guild = highscores_data.get_guild(interaction.guild_id)
        verify_channel = interaction.guild.get_channel(guild.verification_channel)

        embed: nextcord.Embed = nextcord.Embed(title="Username change request.")
        embed.add_field(name="Old Username", value=old_username)
        embed.add_field(name="New Username", value=new_username)
        await verify_channel.send(
            content=f"Username change request from <@{interaction.user.id}>.",
            embed=embed,
            view=UpdateUsernameVerifyView(),
        )
        await interaction.send("Request sent to admins for verification.", ephemeral=True)