"""
Discord Views Module

Contains all Discord UI views and interactive components.
Handles server control buttons, dropdowns, and permission checks.
"""

import logging
from typing import TYPE_CHECKING

import discord
from discord.ext import commands

from config import Config
from exceptions import PermissionError

if TYPE_CHECKING:
    from api import PanelAPI

logger = logging.getLogger("pterodisbot")


class ServerStatusView(discord.ui.View):
    """
    Interactive view containing server control buttons.

    Provides persistent controls for server management with role-based access.
    Buttons: Start (green), Stop (red), Restart (blurple), Show Address (grey).

    Features:
    - Guild restriction (only works in configured server)
    - Role-based access control (requires "Game Server User" role)
    - Persistent views (timeout=None for infinite persistence)
    - Comprehensive error handling with user feedback
    """

    def __init__(
        self,
        server_id: str,
        server_name: str,
        api: "PanelAPI",
        server_data: dict,
    ) -> None:
        """
        Initialize the server status view with control buttons.

        Args:
            server_id: The server's panel identifier
            server_name: Human-readable server name
            api: Panel API client instance
            server_data: Full server data from panel
        """
        super().__init__(timeout=None)  # Persistent view
        self.server_id = server_id
        self.server_name = server_name
        self.api = api
        self.server_data = server_data
        logger.debug(f"Created ServerStatusView for {server_name} ({server_id})")

    async def interaction_check(self, interaction: discord.Interaction) -> bool:
        """
        Verify the interacting user has the required role and is in the allowed guild.

        Args:
            interaction: Discord interaction object

        Returns:
            bool: True if authorized, False otherwise
        """
        config = Config.get_instance()

        # First check if interaction is from the allowed guild
        if interaction.guild_id != config.allowed_guild_id:
            logger.warning(f"Unauthorized interaction attempt from guild {interaction.guild_id}")
            await interaction.response.send_message(
                "This bot is only available in a specific server.", ephemeral=True
            )
            return False

        # Then check for required role
        logger.debug(f"Checking permissions for {interaction.user.name} on server {self.server_name}")
        has_role = any(role.name == config.required_role for role in interaction.user.roles)
        if not has_role:
            logger.warning(
                f"Permission denied for {interaction.user.name} - missing '{config.required_role}' role"
            )
            await interaction.response.send_message(
                f"You don't have permission to control servers. You need the '{config.required_role}' role.",
                ephemeral=True,
            )
            return False

        logger.debug(f"Permission granted for {interaction.user.name}")
        return True

    async def on_error(
        self, interaction: discord.Interaction, error: Exception, item: discord.ui.Item
    ) -> None:
        """
        Handle errors in button interactions.

        Args:
            interaction: Discord interaction object
            error: Exception that occurred
            item: The UI item that triggered the error
        """
        logger.error(f"View error in {self.server_name} by {interaction.user.name}: {str(error)}")
        if not interaction.response.is_done():
            await interaction.response.send_message(
                "An error occurred while processing your request.", ephemeral=True
            )
        else:
            await interaction.followup.send(
                "An error occurred while processing your request.", ephemeral=True
            )

    @discord.ui.button(
        label="Start", style=discord.ButtonStyle.green, custom_id="start_button"
    )
    async def start_button(
        self, interaction: discord.Interaction, button: discord.ui.Button
    ) -> None:
        """Send a start command to the server."""
        logger.info(f"Start button pressed for {self.server_name} by {interaction.user.name}")
        await interaction.response.defer(ephemeral=True)
        result = await self.api.send_power_action(self.server_id, "start")

        if result.get("status") == "success":
            message = f"Server '{self.server_name}' is starting..."
            logger.info(f"Successfully started server {self.server_name}")
        else:
            message = f"Failed to start server: {result.get('message', 'Unknown error')}"
            logger.error(f"Failed to start server {self.server_name}: {message}")

        await interaction.followup.send(message, ephemeral=True)

    @discord.ui.button(
        label="Stop", style=discord.ButtonStyle.red, custom_id="stop_button"
    )
    async def stop_button(
        self, interaction: discord.Interaction, button: discord.ui.Button
    ) -> None:
        """Send a stop command to the server."""
        logger.info(f"Stop button pressed for {self.server_name} by {interaction.user.name}")
        await interaction.response.defer(ephemeral=True)
        result = await self.api.send_power_action(self.server_id, "stop")

        if result.get("status") == "success":
            message = f"Server '{self.server_name}' is stopping..."
            logger.info(f"Successfully stopped server {self.server_name}")
        else:
            message = f"Failed to stop server: {result.get('message', 'Unknown error')}"
            logger.error(f"Failed to stop server {self.server_name}: {message}")

        await interaction.followup.send(message, ephemeral=True)

    @discord.ui.button(
        label="Restart", style=discord.ButtonStyle.blurple, custom_id="restart_button"
    )
    async def restart_button(
        self, interaction: discord.Interaction, button: discord.ui.Button
    ) -> None:
        """Send a restart command to the server."""
        logger.info(f"Restart button pressed for {self.server_name} by {interaction.user.name}")
        await interaction.response.defer(ephemeral=True)
        result = await self.api.send_power_action(self.server_id, "restart")

        if result.get("status") == "success":
            message = f"Server '{self.server_name}' is restarting..."
            logger.info(f"Successfully restarted server {self.server_name}")
        else:
            message = f"Failed to restart server: {result.get('message', 'Unknown error')}"
            logger.error(f"Failed to restart server {self.server_name}: {message}")

        await interaction.followup.send(message, ephemeral=True)

    @discord.ui.button(
        label="Show Address",
        style=discord.ButtonStyle.grey,
        custom_id="show_address_button",
    )
    async def show_address_button(
        self, interaction: discord.Interaction, button: discord.ui.Button
    ) -> None:
        """Show server's default allocation IP and port."""
        logger.info(f"Show Address button pressed for {self.server_name} by {interaction.user.name}")
        try:
            await interaction.response.defer(ephemeral=True)
            logger.debug(f"Fetching server details for {self.server_id}")

            ip_alias, port = await self.api.get_server_default_allocation(self.server_id)

            # Create and send embed
            embed = discord.Embed(
                title=f"{self.server_name} Connection Info",
                color=discord.Color.blue(),
                description=f"Server ID: `{self.server_id}`",
            )
            embed.add_field(name="Address", value=f"`{ip_alias}`", inline=True)
            embed.add_field(name="Port", value=f"`{port}`", inline=True)

            await interaction.followup.send(embed=embed, ephemeral=True)
            logger.info(f"Displayed connection info for {self.server_name}")

        except Exception as e:
            logger.error(f"Failed to show address for {self.server_name}: {str(e)}")
            await interaction.followup.send(
                "⚠️ Failed to get connection info. The server may not have any ports allocated.",
                ephemeral=True,
            )


class ServerDropdown(discord.ui.Select):
    """Dropdown menu for server selection in status dashboard."""

    def __init__(self, server_options: list) -> None:
        """
        Initialize the server dropdown.

        Args:
            server_options: List of discord.SelectOption objects
        """
        super().__init__(
            placeholder="Select a server to display...",
            options=server_options,
            min_values=1,
            max_values=1,
        )

    async def callback(self, interaction: discord.Interaction) -> None:
        """
        Handle server selection from dropdown menu.

        Creates permanent status embed in the channel for the selected server.
        """
        from bot import PterodactylBot

        await interaction.response.defer(ephemeral=True)

        bot = PterodactylBot.get_instance()
        selected_server_id = self.values[0]
        server_data = bot.server_cache.get(selected_server_id)

        if not server_data:
            await interaction.followup.send(
                "❌ Selected server no longer available. Please try again.", ephemeral=True
            )
            return

        server_name = server_data["attributes"]["name"]
        logger.info(f"User {interaction.user.name} selected server: {server_name}")

        try:
            # Get current server status for embed creation
            resources = await bot.api.get_server_resources(selected_server_id)

            # Delete old embed if it exists to prevent duplication
            if selected_server_id in bot.embed_manager.embed_locations:
                logger.debug(f"Found existing embed for {selected_server_id}, attempting to delete")
                try:
                    old_location = bot.embed_manager.embed_locations[selected_server_id]
                    old_channel = bot.get_channel(int(old_location["channel_id"]))
                    if old_channel:
                        try:
                            old_message = await old_channel.fetch_message(
                                int(old_location["message_id"])
                            )
                            await old_message.delete()
                            logger.debug(f"Deleted old embed for {selected_server_id}")
                        except discord.NotFound:
                            logger.debug(f"Old embed for {selected_server_id} already deleted")
                except Exception as e:
                    logger.error(f"Failed to delete old embed: {str(e)}")

            # Create and send new permanent status embed in channel
            from models import ServerData, ServerResources

            server_obj = ServerData.model_validate(server_data)
            resources_obj = ServerResources.model_validate(resources)

            embed, view = await bot.embed_manager.create_server_embed(server_obj, resources_obj)
            message = await interaction.channel.send(embed=embed, view=view)
            await bot.embed_manager.track_embed(selected_server_id, message)

            await interaction.followup.send(
                f"✅ **{server_name}** status has been posted in {interaction.channel.mention}",
                ephemeral=True,
            )
            logger.info(f"Successfully posted status for {server_name}")

        except Exception as e:
            logger.error(f"Failed to create status embed for {server_name}: {str(e)}")
            await interaction.followup.send(
                f"❌ Failed to create status embed for **{server_name}**: {str(e)}", ephemeral=True
            )


class ServerDropdownView(discord.ui.View):
    """View containing the server dropdown with timeout for auto-cleanup."""

    def __init__(self, server_options: list, timeout: int = 180) -> None:
        """
        Initialize dropdown view with timeout.

        Args:
            server_options: List of discord.SelectOption objects
            timeout: Timeout in seconds (default 3 minutes for ephemeral cleanup)
        """
        super().__init__(timeout=timeout)
        self.server_options = server_options
        self.add_item(ServerDropdown(server_options))

    async def on_timeout(self) -> None:
        """Clean up when dropdown times out (ephemeral auto-removal)."""
        logger.debug("Server dropdown timed out and was automatically cleaned up")