from typing import Optional, Dict, List
from sqlalchemy import Table, Column, UniqueConstraint, PrimaryKeyConstraint, and_, case
from sqlalchemy.types import Integer, String, TIMESTAMP, Boolean
from sqlalchemy.schema import ForeignKey
from sqlalchemy.sql import func, select, update, delete
from sqlalchemy.engine import Row
from sqlalchemy.dialects.mysql import insert

from core.data.schema import BaseData, metadata

item = Table(
    "wacca_item",
    metadata,
    Column("id", Integer, primary_key=True, nullable=False),
    Column(
        "user",
        ForeignKey("aime_user.id", ondelete="cascade", onupdate="cascade"),
        nullable=False,
    ),
    Column("item_id", Integer, nullable=False),
    Column("type", Integer, nullable=False),
    Column("acquire_date", TIMESTAMP, nullable=False, server_default=func.now()),
    Column("use_count", Integer, server_default="0"),
    UniqueConstraint("user", "item_id", "type", name="wacca_item_uk"),
    mysql_charset="utf8mb4",
)

ticket = Table(
    "wacca_ticket",
    metadata,
    Column("id", Integer, primary_key=True, nullable=False),
    Column(
        "user",
        ForeignKey("aime_user.id", ondelete="cascade", onupdate="cascade"),
        nullable=False,
    ),
    Column("ticket_id", Integer, nullable=False),
    Column("acquire_date", TIMESTAMP, nullable=False, server_default=func.now()),
    Column("expire_date", TIMESTAMP),
    mysql_charset="utf8mb4",
)

song_unlock = Table(
    "wacca_song_unlock",
    metadata,
    Column("id", Integer, primary_key=True, nullable=False),
    Column(
        "user",
        ForeignKey("aime_user.id", ondelete="cascade", onupdate="cascade"),
        nullable=False,
    ),
    Column("song_id", Integer, nullable=False),
    Column("highest_difficulty", Integer, nullable=False),
    Column("acquire_date", TIMESTAMP, nullable=False, server_default=func.now()),
    UniqueConstraint("user", "song_id", name="wacca_song_unlock_uk"),
    mysql_charset="utf8mb4",
)

trophy = Table(
    "wacca_trophy",
    metadata,
    Column("id", Integer, primary_key=True, nullable=False),
    Column(
        "user",
        ForeignKey("aime_user.id", ondelete="cascade", onupdate="cascade"),
        nullable=False,
    ),
    Column("trophy_id", Integer, nullable=False),
    Column("season", Integer, nullable=False),
    Column("progress", Integer, nullable=False, server_default="0"),
    Column("badge_type", Integer, nullable=False, server_default="0"),
    UniqueConstraint("user", "trophy_id", "season", name="wacca_trophy_uk"),
    mysql_charset="utf8mb4",
)


class WaccaItemData(BaseData):
    def get_song_unlocks(self, user_id: int) -> Optional[List[Row]]:
        sql = song_unlock.select(song_unlock.c.user == user_id)

        result = self.execute(sql)
        if result is None:
            return None

        return result.fetchall()

    def unlock_song(self, user_id: int, song_id: int, difficulty: int) -> Optional[int]:
        sql = insert(song_unlock).values(
            user=user_id, song_id=song_id, highest_difficulty=difficulty
        )

        conflict = sql.on_duplicate_key_update(
            highest_difficulty=case(
                (
                    song_unlock.c.highest_difficulty >= difficulty,
                    song_unlock.c.highest_difficulty,
                ),
                (song_unlock.c.highest_difficulty < difficulty, difficulty),
            )
        )

        result = self.execute(conflict)
        if result is None:
            self.logger.error(
                f"{__name__} failed to unlock song! user: {user_id}, song_id: {song_id}, difficulty: {difficulty}"
            )
            return None

        return result.lastrowid

    def put_item(self, user_id: int, item_type: int, item_id: int) -> Optional[int]:
        sql = insert(item).values(
            user=user_id,
            item_id=item_id,
            type=item_type,
        )

        conflict = sql.on_duplicate_key_update(use_count=item.c.use_count + 1)

        result = self.execute(conflict)
        if result is None:
            self.logger.error(
                f"{__name__} failed to insert item! user: {user_id}, item_id: {item_id}, item_type: {item_type}"
            )
            return None

        return result.lastrowid

    def get_items(
        self, user_id: int, item_type: int = None, item_id: int = None
    ) -> Optional[List[Row]]:
        """
        A catch-all item lookup given a profile and option item type and ID specifiers
        """
        sql = item.select(
            and_(
                item.c.user == user_id,
                item.c.type == item_type if item_type is not None else True,
                item.c.item_id == item_id if item_id is not None else True,
            )
        )

        result = self.execute(sql)
        if result is None:
            return None
        return result.fetchall()

    def get_tickets(self, user_id: int) -> Optional[List[Row]]:
        sql = select(ticket).where(ticket.c.user == user_id)

        result = self.execute(sql)
        if result is None:
            return None
        return result.fetchall()

    def add_ticket(self, user_id: int, ticket_id: int) -> None:
        sql = insert(ticket).values(user=user_id, ticket_id=ticket_id)

        result = self.execute(sql)
        if result is None:
            self.logger.error(
                f"add_ticket: Failed to insert wacca ticket! user_id: {user_id} ticket_id {ticket_id}"
            )
            return None
        return result.lastrowid

    def spend_ticket(self, id: int) -> None:
        sql = delete(ticket).where(ticket.c.id == id)

        result = self.execute(sql)
        if result is None:
            self.logger.warn(f"Failed to delete ticket id {id}")
            return None

    def get_trophies(self, user_id: int, season: int = None) -> Optional[List[Row]]:
        if season is None:
            sql = select(trophy).where(trophy.c.user == user_id)
        else:
            sql = select(trophy).where(
                and_(trophy.c.user == user_id, trophy.c.season == season)
            )

        result = self.execute(sql)
        if result is None:
            return None
        return result.fetchall()

    def update_trophy(
        self, user_id: int, trophy_id: int, season: int, progress: int, badge_type: int
    ) -> Optional[int]:
        sql = insert(trophy).values(
            user=user_id,
            trophy_id=trophy_id,
            season=season,
            progress=progress,
            badge_type=badge_type,
        )

        conflict = sql.on_duplicate_key_update(progress=progress)

        result = self.execute(conflict)
        if result is None:
            self.logger.error(
                f"update_trophy: Failed to insert wacca trophy! user_id: {user_id} trophy_id: {trophy_id} progress {progress}"
            )
            return None
        return result.lastrowid