"""File holds all model definitions of SQL tables."""

from sqlalchemy.dialects.mysql import BIGINT, VARCHAR
from sqlmodel import Column, Field, ForeignKey, Relationship, SQLModel


class ElectionInformation(SQLModel, table=True):
    """
    Represents all required information for an election.

    Attributes:
        name: Name of the election.
        thread_id: Thread of where all the election related messages take place.
        council_vote_msg_id: Message where the council vote is presented.
        high_council_vote_msg_id: Message where the high council vote is presented.
        council_nomination_msg_id: Message where council nomination button is held.
        high_council_nomination_msg_id: Message where high council nomination button is held.
        council_members: List of council members who ran during this election.
        votes: All votes cast during this election.
    """

    name: str = Field(sa_column=Column("ElectionName", VARCHAR, primary_key=True, unique=True), max_length=30)
    thread_id: int = Field(sa_column=Column("ThreadId", BIGINT(unsigned=True), nullable=False))
    council_vote_msg_id: int | None = Field(
        sa_column=Column("CouncilVoteMsgId", BIGINT(unsigned=True), nullable=True), default=None
    )
    high_council_vote_msg_id: int | None = Field(
        sa_column=Column("HighCouncilVoteMsgId", BIGINT(unsigned=True), nullable=True), default=None
    )
    council_nomination_msg_id: int | None = Field(
        sa_column=Column("CouncilNominationMsgId", BIGINT(unsigned=True), nullable=True), default=None
    )
    high_council_nomination_msg_id: int | None = Field(
        sa_column=Column("HighCouncilNominationMsgId", BIGINT(unsigned=True), nullable=True), default=None
    )

    council_members: list["CouncilMember"] = Relationship(back_populates="election", cascade_delete=True)
    votes: list["Vote"] = Relationship(back_populates="election", cascade_delete=True)


class CouncilMember(SQLModel, table=True):
    """
    Represents members involved in a given election.

    Records speech message ids for general election and high council position. Booleans record if the user was elected
    to a council/high council position.

    Attributes:
        member_id: User that is running for council's discord id.
        speech_msg_id: Message id of user's speech.
        elected: Whether the user got elected to council.
        discord_manager: Whether the user got elected to the Discord Manager position.
        clan_leader: Whether the user got elected to the Clan Leader position.
        discord_manager_speech_id: Message id of the user's Discord Manager speech.
        clan_leader_speech_id: Message id of the user's Clan Leader speech.
        election: The election this user object is for.
        votes: A list of votes for this user.
    """

    __tablename__: str = "CouncilMembers"

    election_name: str = Field(
        sa_column=Column(
            "ElectionName",
            VARCHAR,
            ForeignKey("ElectionInformation.ElectionName", ondelete="CASCADE"),
            primary_key=True,
        ),
        max_length=30,
    )
    member_id: int = Field(sa_column=Column("MemberId", BIGINT(unsigned=True), primary_key=True, nullable=False))
    speech_msg_id: int = Field(sa_column=Column("SpeechMsgId", BIGINT(unsigned=True), nullable=False))
    elected: bool = Field(sa_column=Column("Elected"), default=False)
    discord_manager: bool = Field(sa_column=Column("DiscordManager"), default=False)
    clan_leader: bool = Field(sa_column=Column("ClanLeader"), default=False)
    discord_manager_speech_id: int = Field(
        sa_column=Column("DiscordManagerSpeechId", BIGINT(unsigned=True), nullable=True)
    )
    clan_leader_speech_id: int = Field(sa_column=Column("ClanLeaderSpeechId", BIGINT(unsigned=True), nullable=True))

    election: ElectionInformation | None = Relationship(back_populates="council_members")
    votes: list["Vote"] = Relationship(back_populates="council_member")


class Vote(SQLModel, table=True):
    """
    Represents a vote cast during an election.

    Attributes:
        election_name: Election this vote was cast in.
        voter_id: User id that cast the vote.
        voted_for_id: User id that was voted for.
        type: Type of election, council, discordmanager, or clanleader.
        election: A link to the ElectionInformation object that the vote was cast in.
        council_member: A link to the CouncilMember object that the vote is for.
    """

    __tablename__: str = "Votes"

    election_name: str = Field(
        sa_column=Column(
            "ElectionName",
            VARCHAR,
            ForeignKey("ElectionInformation.ElectionName", ondelete="CASCADE"),
            primary_key=True,
        ),
        max_length=30,
    )
    voter_id: int = Field(sa_column=Column("VoterId", BIGINT(unsigned=True), primary_key=True, nullable=False))
    # might have to set this foreign key later with alembic migration...
    voted_for_id: int | None = Field(
        sa_column=Column("VotedForId", BIGINT(unsigned=True), ForeignKey("CouncilMembers.member_id"), nullable=True)
    )
    type: str = Field(sa_column=Column("Type", primary_key=True, nullable=False, default="council"), max_length=14)

    election: ElectionInformation | None = Relationship(back_populates="votes")
    council_member: CouncilMember | None = Relationship(back_populates="votes")


class UserBirthday(SQLModel, table=True):
    """
    Represents a user's birth month and day.

    Attributes:
        id: User's discord id.
        birthday: Month/day that is a user's birthday.
    """

    id: int = Field(sa_column=Column("UserId", BIGINT(unsigned=True), primary_key=True, nullable=False))

    # TODO(imcompiling): split into month and day. Also relies on Alembic migration.
    # https://gitea.cheezers.org/imcompiling/dakiny-bot/issues/93
    birthday: str = Field(sa_column=Column("Birthday", VARCHAR, nullable=False), max_length=5)