from zhenxun.services.log import logger

from .database import CSqlManager


class CUserSeedDB(CSqlManager):
    @classmethod
    async def initDB(cls):
        userSeed = {
            "uid": "TEXT NOT NULL",  # 用户Uid
            "seed": "TEXT NOT NULL",  # 种子名称
            "count": "INTEGER NOT NULL DEFAULT 0",  # 数量
            "PRIMARY KEY": "(uid, seed)",
        }

        await cls.ensureTableSchema("userSeed", userSeed)

    @classmethod
    async def addUserSeedByUid(cls, uid: str, seed: str, count: int = 1) -> bool:
        """根据用户uid添加种子信息（事务版本）

        Args:
            uid (str): 用户uid
            seed (str): 种子名称
            count (int): 数量

        Returns:
            bool: 是否添加成功
        """
        try:
            async with cls._transaction():
                async with cls.m_pDB.execute(
                    "SELECT count FROM userSeed WHERE uid = ? AND seed = ?", (uid, seed)
                ) as cursor:
                    row = await cursor.fetchone()

                if row:
                    newCount = row[0] + count
                    await cls.m_pDB.execute(
                        "UPDATE userSeed SET count = ? WHERE uid = ? AND seed = ?",
                        (newCount, uid, seed),
                    )
                else:
                    newCount = count
                    await cls.m_pDB.execute(
                        "INSERT INTO userSeed (uid, seed, count) VALUES (?, ?, ?)",
                        (uid, seed, count),
                    )

                if newCount <= 0:
                    await cls.m_pDB.execute(
                        "DELETE FROM userSeed WHERE uid = ? AND seed = ?", (uid, seed)
                    )
            return True
        except Exception as e:
            logger.warning("addUserSeedByUid 失败！", e=e)
            return False

    @classmethod
    async def _addUserSeedByUid(cls, uid: str, seed: str, count: int = 1) -> bool:
        """根据用户uid添加种子信息（非事务版，复用其他非事务接口）"""
        try:
            existing = await cls.getUserSeedByName(uid, seed)
            newCount = (existing or 0) + count

            if existing is not None:
                await cls._updateUserSeedByName(uid, seed, newCount)
            else:
                await cls.m_pDB.execute(
                    "INSERT INTO userSeed (uid, seed, count) VALUES (?, ?, ?)",
                    (uid, seed, newCount),
                )

            if newCount <= 0:
                await cls._deleteUserSeedByName(uid, seed)

            return True
        except Exception as e:
            logger.warning("_addUserSeedByUid 失败！", e=e)
            return False

    @classmethod
    async def getUserSeedByName(cls, uid: str, seed: str) -> int | None:
        """根据种子名称获取种子数量

        Args:
            uid (str): 用户uid
            seed (str): 种子名称

        Returns:
            Optional[int]: 种子数量
        """

        try:
            async with cls.m_pDB.execute(
                "SELECT count FROM userSeed WHERE uid = ? AND seed = ?", (uid, seed)
            ) as cursor:
                row = await cursor.fetchone()
                return row[0] if row else None
        except Exception as e:
            logger.warning("getUserSeedByName 查询失败！", e=e)
            return None

    @classmethod
    async def getUserSeedByUid(cls, uid: str) -> dict:
        """根据用户Uid获取仓库全部种子信息

        Args:
            uid (str): 用户uid

        Returns:
            dict: 种子信息
        """

        cursor = await cls.m_pDB.execute(
            "SELECT seed, count FROM userSeed WHERE uid=?", (uid,)
        )
        rows = await cursor.fetchall()
        return {row["seed"]: row["count"] for row in rows}

    @classmethod
    async def updateUserSeedByName(cls, uid: str, seed: str, count: int) -> bool:
        """根据种子名称更新种子数量

        Args:
            uid (str): 用户uid
            seed (str): 种子名称
            count (int): 种子数量

        Returns:
            bool: 是否成功
        """
        try:
            if count <= 0:
                return await cls.deleteUserSeedByName(uid, seed)

            async with cls._transaction():
                await cls.m_pDB.execute(
                    "UPDATE userSeed SET count = ? WHERE uid = ? AND seed = ?",
                    (count, uid, seed),
                )
            return True
        except Exception as e:
            logger.warning("updateUserSeedByName失败！", e=e)
            return False

    @classmethod
    async def _updateUserSeedByName(cls, uid: str, seed: str, count: int) -> bool:
        """根据种子名称更新种子数量

        Args:
            uid (str): 用户uid
            seed (str): 种子名称
            count (int): 种子数量

        Returns:
            bool: 是否成功
        """
        try:
            if count <= 0:
                return await cls.deleteUserSeedByName(uid, seed)

            async with cls._transaction():
                await cls.m_pDB.execute(
                    "UPDATE userSeed SET count = ? WHERE uid = ? AND seed = ?",
                    (count, uid, seed),
                )
            return True
        except Exception as e:
            logger.warning("updateUserSeedByName失败！", e=e)
            return False

    @classmethod
    async def deleteUserSeedByName(cls, uid: str, seed: str) -> bool:
        """根据种子名称从种子仓库中删除种子

        Args:
            uid (str): 用户uid
            seed (str): 种子名称

        Returns:
            bool: 是否成功
        """
        try:
            async with cls._transaction():
                await cls.m_pDB.execute(
                    "DELETE FROM userSeed WHERE uid = ? AND seed = ?", (uid, seed)
                )
            return True
        except Exception as e:
            logger.warning("deleteUserSeedByName 删除失败！", e=e)
            return False

    @classmethod
    async def _deleteUserSeedByName(cls, uid: str, seed: str) -> bool:
        """根据种子名称从种子仓库中删除种子

        Args:
            uid (str): 用户uid
            seed (str): 种子名称

        Returns:
            bool: 是否成功
        """
        try:
            await cls.m_pDB.execute(
                "DELETE FROM userSeed WHERE uid = ? AND seed = ?", (uid, seed)
            )
            return True
        except Exception as e:
            logger.warning("deleteUserSeedByName 删除失败！", e=e)
            return False