"""
Contains commands and views for request commands.
"""

import nextcord
from nextcord.ext import commands

from config import DakinyConfig


class RequestCog(commands.Cog, name="Request Commands"):
    """
    Class holds request commands.
    """

    def __init__(self, bot) -> None:
        """
        Default constructor for RequestCog class. Does nothing.
        """
        self.bot: commands.Bot = bot

    @nextcord.slash_command()
    async def request(self, interaction: nextcord.Interaction):
        """
        Parent slash command for help. Never called.
        """

    @request.subcommand(description="Request to change your Dakiny nickname")
    async def change_nickname(
        self,
        interaction: nextcord.Interaction,
        new_nickname: str = nextcord.SlashOption(
            required=True, min_length=2, max_length=32, description="Your requested new nickname."
        ),
    ):
        """
        Sends a message to admins to request a nickname change.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command.
            new_username(str): The username to change to.
        """

        config: DakinyConfig = self.bot.config
        content = f'<@{interaction.user.id}> would like to change their username to "{new_nickname}."'
        view = UsernameRequest(interaction.user.id, new_nickname)
        await self.bot.get_channel(config.params.admin_channel_id).send(content=content, view=view)
        await interaction.response.send_message("Request sent to admins.", ephemeral=True)


class UsernameRequest(nextcord.ui.View):
    """
    View provides approve and deny buttons and action for a username change request.
    """

    def __init__(self, user_id: int, new_nickname: str, *, timeout: float | None = 180, auto_defer: bool = True):
        super().__init__(timeout=timeout, auto_defer=auto_defer)
        self.user_id = user_id
        self.new_nickname = new_nickname

    @nextcord.ui.button(label="Approve", style=nextcord.ButtonStyle.green)
    async def approve(self, button: nextcord.ui.Button, interaction: nextcord.Interaction):
        user = interaction.guild.get_member(self.user_id)
        if user is not None:
            user.edit(nick=self.new_nickname)
            content = interaction.message.content + f" Approved by <@{interaction.user.id}.>"
            await interaction.response.edit_message(content=content, view=None)
        else:
            await interaction.response.edit_message(
                content="An error occured while changing the user's nickname.", view=None
            )

    @nextcord.ui.button(label="Deny", style=nextcord.ButtonStyle.red)
    async def deny(self, button: nextcord.ui.Button, interaction: nextcord.Interaction):
        content = interaction.message.content + f" Denied by <@{interaction.user.id}.>"
        await interaction.response.edit_message(content=content, view=None)