"""
Contains various views to be used in the nomination process.
"""

import nextcord
from nextcord.interactions import Interaction
from sqlalchemy import select
from sqlalchemy.orm import Session

from config import DakinyConfig
from database_setup.sql_data_classes import CouncilMembers, engine
from utils import get_election_cycle_name

NOMINEE_SPLITTER = "========================================\n\n"


class NominateModal(nextcord.ui.Modal):
    """
    Modal for nominating oneself. User writes a speech and then the callback sends the speech into the correct channel.
    """

    def __init__(self, config: DakinyConfig, usr_id: int, usr_nominated: bool, speech_content: str):
        super().__init__(
            "Nomination",
            timeout=5 * 60,  # 5 minutes
        )
        self.usr_id: int = usr_id
        self.config: DakinyConfig = config
        self.usr_nominated = usr_nominated

        self.speech = nextcord.ui.TextInput(
            label="Nomination Speech",
            style=nextcord.TextInputStyle.paragraph,
            placeholder="Please write your speech here.",
            required=True,
            max_length=1500,
            default_value=speech_content,
        )
        self.add_item(self.speech)

    async def callback(self, interaction: Interaction) -> None:
        """
        Sends the nomination speech into the voting channel and enters the user into the voting database.

        Args:
            interaction (Interaction): Interaction with user.

        """

        speech = decorate_nomination(interaction.user.id, self.speech.value)

        with Session(engine) as session:
            if not self.usr_nominated:
                msg = await interaction.channel.send(speech)

                council_member = CouncilMembers(
                    ElectionCycle=get_election_cycle_name(self.config),
                    MemberId=interaction.user.id,
                    SpeechMsgId=msg.id,
                )
                session.add(council_member)
                session.commit()
            else:
                # user already nominated, just need to update the election speech
                cycle = get_election_cycle_name(self.config)
                stmt = (
                    select(CouncilMembers)
                    .where(CouncilMembers.ElectionCycle == cycle)
                    .where(CouncilMembers.MemberId == self.usr_id)
                )
                obj = session.scalar(stmt)

                msg: nextcord.Message = await interaction.channel.fetch_message(obj.SpeechMsgId)
                await msg.edit(content=decorate_nomination(interaction.user.id, self.speech.value))


class NominateView(nextcord.ui.View):
    """
    The button to press to start your nomination.
    """

    def __init__(self, config):
        super().__init__(timeout=None)
        self.config: DakinyConfig = config

    @nextcord.ui.button(label="Nominate Yourself", style=nextcord.ButtonStyle.primary, custom_id="nominate")
    async def nominate(self, button: nextcord.ui.Button, interaction: nextcord.Interaction) -> None:
        """
        Gathers previous information about the user if they have already nominated themselves, then launches
        the nomination modal to get their speech.

        Args:
            button (nextcord.ui.Button): Unused. idk why its needed in the decorator
            interaction (nextcord.Interaction): Interaction of user who pressed the button
        """

        cycle = get_election_cycle_name(self.config)
        usr_nominated = False
        speech_content = ""
        with Session(engine) as session:
            stmt = (
                select(CouncilMembers)
                .where(CouncilMembers.ElectionCycle == cycle)
                .where(CouncilMembers.MemberId == interaction.user.id)
            )
            obj = session.scalar(stmt)
            if obj is not None:
                usr_nominated = True
                msg = await interaction.channel.fetch_message(obj.SpeechMsgId)
                speech_content = msg.content.split(NOMINEE_SPLITTER)[1]

        await interaction.response.send_modal(
            NominateModal(self.config, interaction.user.id, usr_nominated, speech_content)
        )


def decorate_nomination(user_id: int, speech: str) -> str:
    """
    Decorates a nomination speech so that it sits within multiple speeches better.

    Args:
        user_id (int): ID of user sending the speech
        speech (str): Speech from the user

    Returns:
        str: Decorated speech
    """
    msg = f"**Clan Council Nominee: <@{user_id}>**\n"
    msg += NOMINEE_SPLITTER
    msg += speech

    return msg