import logging
from os import getenv
from typing import Optional

from naff import (
    Client,
    Guild,
    Intents,
    listen,
    slash_command,
    slash_option,
    InteractionContext,
    AuditLogEventType,
    AuditLogEntry,
    RoleSelectMenu,
    is_owner,
    check,
    OptionTypes,
    GuildChannel,
    DM,
)
from naff.api import events
from naff.models.discord.embed import (
    Embed,
    EmbedAuthor,
    EmbedField,
    EmbedFooter,
)

from dotenv import load_dotenv
from database import GuildSettings as GuildSettingsModel, JoinLeave


class HeimdallrClient(Client):
    @listen()
    async def on_ready(self):
        print("------------------------------------")
        print(f"Bot '{bot.user.username}' is ready!")
        print(f"This bot is owned by {bot.owner}")
        print()
        print("------------------------------------")

        for guild in bot.guilds:
            guild_q = GuildSettingsModel.get_or_none(
                GuildSettingsModel.guild_id == guild.id
            )
            if guild_q is None:
                guild_q = GuildSettingsModel(guild_id=guild.id)
                guild_q.save()

    @listen(events.MemberAdd)
    async def on_member_join(self, event: events.MemberAdd):
        joinleave_q: JoinLeave
        joinleave_q, _ = JoinLeave.get_or_create(guild_id=event.guild.id)

        if joinleave_q.message_channel is None:
            return
        channel = await bot.fetch_channel(joinleave_q.message_channel)

        if not joinleave_q.join_message_enabled:
            return

        if joinleave_q.join_message is None or joinleave_q.join_message == "":
            await channel.send(f"{event.member.mention} has joined the server!")
            return

        await channel.send(
            str(joinleave_q.join_message).format(member=event.member, guild=event.guild)
        )

    @listen(events.MemberRemove)
    async def on_member_leave(self, event: events.MemberRemove):
        joinleave_q: JoinLeave
        joinleave_q, _ = JoinLeave.get_or_create(guild_id=event.guild.id)

        guildsettings_q: GuildSettingsModel
        guildsettings_q, _ = GuildSettingsModel.get_or_create(guild_id=event.guild.id)

        entry: AuditLogEntry
        async for entry in event.guild.audit_log_history(
            action_type=AuditLogEventType.MEMBER_KICK, limit=10
        ):
            if (
                entry.target_id != event.member.id
                or guildsettings_q.admin_channel is None
            ):
                continue

            channel = await bot.fetch_channel(guildsettings_q.admin_channel)
            await channel.send(
                f"{event.member.mention} was kicked with reason: {entry.reason}"
            )
            break

        if joinleave_q.message_channel is None:
            return
        channel = await bot.fetch_channel(joinleave_q.message_channel)

        if not joinleave_q.leave_message_enabled:
            return

        if joinleave_q.leave_message is None or joinleave_q.leave_message == "":
            await channel.send(f"{event.member.mention} has left the server!")
            return

        await channel.send(
            str(joinleave_q.leave_message).format(
                member=event.member, guild=event.guild
            )
        )

    @slash_command(name="ping", description="Ping the bot")
    async def ping_command(self, ctx: InteractionContext):
        ctx.ephemeral = True
        await ctx.send("Pong!", components=RoleSelectMenu(placeholder="HONK"))

    @slash_command(name="bot-info", description="Get info about the bot")
    async def bot_info_command(self, ctx: InteractionContext):
        await ctx.send(
            ephemeral=True,
            embed=Embed(
                title=f"{bot.user.username}",
                description=f"This bot is owned by {bot.owner}",
                color=0x00FF00,
                timestamp=bot.user.created_at,
                url=bot.user.avatar.as_url(),
                author=EmbedAuthor(
                    name=bot.user.username,
                    icon_url=bot.user.avatar.as_url(),
                ),
                footer=EmbedFooter(
                    text=f"Created at {bot.user.created_at}",
                    icon_url=bot.user.avatar.as_url(),
                ),
                fields=[
                    EmbedField(
                        name="**Extensions**",
                        value=f"{', '.join(bot.ext.keys())}",
                    ),
                    EmbedField(
                        name="**Guilds**",
                        value="\n".join(
                            [g.name for g in sorted(bot.guilds, key=lambda g: g.name)]
                        ),
                    ),
                ],
            ),
        )

    @check(is_owner())
    @slash_command(
        name="owner",
        description="Owner-related commands",
        dm_permission=True,
        # Only available in the dev server.
        scopes=[
            387153131378835456,  # BotTestServer
        ],
    )
    async def owner_cmd(self, ctx: InteractionContext):
        pass

    @owner_cmd.subcommand(
        sub_cmd_name="reload-module",
        sub_cmd_description="Reload a bot module",
    )
    @slash_option(
        name="module",
        description="The module to reload",
        opt_type=OptionTypes.STRING,
        required=True,
    )
    async def owner_reload(self, ctx: InteractionContext, module: str):
        await ctx.defer(ephemeral=True)

        mods = [ext.extension_name for ext in bot.get_extensions(module)]

        if len(mods) == 1:
            module = mods[0]
        elif len(mods) < 1:
            await ctx.send("No modules with that name are loaded.")
            return
        else:
            modnames = "\n".join(mods)
            await ctx.send("**Found multiple matching modules:**\n" f"{modnames}")

        try:
            self.reload_extension(module)
        except Exception as e:
            logging.warn(f"Failed to reload '{module}'.")
            await ctx.send(f"Failed to reload '{module}'.")
        else:
            logging.info(f"Extension '{module}' reloaded.")
            await ctx.send(f"Extension '{module}' reloaded.")

    async def send_message_to_admins(
        self,
        guild: Guild | int,
        content: Optional[str] = None,
        embed: Optional[Embed] = None,
        embeds: list[Embed] | None = None
    ):
        """Send a message to the guild's admin channel or admin.

        Convenience method to send a message to the guild's admin/mod channel,
        or to the owner of the server if an admin channel is not set.
        """
        if embeds is None and embed is not None:
            embeds = [embed]
        elif embeds is not None and embed is not None:
            embeds.append(embed)
        elif content is None and embed is None and embeds is None:
            raise ValueError("At least one of `content`, `embed`, or `embeds` must be set.")

        guild_id = None
        match guild:
            case Guild():
                guild_id = guild.id
            case int():
                guild_id = guild
                guild = await self.fetch_guild(guild_id)
            case _:
                raise TypeError("Argument `guild` must be of type Guild or int")

        guildsettings_q: GuildSettingsModel
        guildsettings_q, _ = GuildSettingsModel.get_or_create(guild_id=guild_id)

        channel: Optional[GuildChannel | DM]
        if guildsettings_q.admin_channel == None:
            owner = await guild.fetch_owner()
            channel = await owner.fetch_dm()

            content = (
                content
                + "\nSet an admin channel to stop receiving these messages as DMs"
                if content is not None
                else "Set an admin channel to stop receiving these messages as DMs"
            )
        else:
            channel = await guild.fetch_channel(int(guildsettings_q.admin_channel))

        await channel.send(content=content, embeds=embeds)


bot = HeimdallrClient(
    intents=Intents.ALL,
    debug_scope=387153131378835456,
    sync_interactions=True,
    fetch_members=True,
)


def set_loglevel(level: str):
    loglevel = logging.WARNING

    match str(level).lower().strip():
        case "d" | "debug":
            loglevel = logging.DEBUG
        case "i" | "info" | "information":
            loglevel = logging.INFO

        case "w" | "warn" | "warning":
            loglevel = logging.WARNING

        case "e" | "error":
            loglevel = logging.ERROR

        case "c" | "critical":
            loglevel = logging.CRITICAL

        case _:
            loglevel = logging.WARNING

    logging.basicConfig(level=loglevel)


def main():
    load_dotenv()  # Load environment variables from .env file
    set_loglevel(getenv("HEIMDALLR_LOGLEVEL"))

    # Create basic tables
    GuildSettingsModel.create_table()
    JoinLeave.create_table()

    # Load extensions
    bot.load_extension("heimdallr.commands.admin")
    bot.load_extension("heimdallr.commands.gatekeep")
    bot.load_extension("heimdallr.commands.quote")
    bot.load_extension("heimdallr.commands.infractions")
    bot.load_extension("heimdallr.commands.self_roles")
    bot.load_extension("heimdallr.commands.polls")
    bot.load_extension("heimdallr.commands.bot_messages")
    bot.load_extension("heimdallr.commands.modmail")
    bot.load_extension("heimdallr.commands.keyword_notify")V
    bot.start(getenv("DISCORD_TOKEN"))


if __name__ == "__main__":
    main()