"""NL2SQL 查询权限仓储。"""
from __future__ import annotations

from datetime import datetime

from sqlalchemy import delete, select

from model.nl2sql_permission import (
    Nl2SqlQueryRole,
    Nl2SqlRoleColumnPermission,
    Nl2SqlRoleTablePermission,
    Nl2SqlSensitiveField,
    Nl2SqlQueryHistory,
)
from repositories.base import BaseRepository


class Nl2SqlPermissionRepo(BaseRepository):
    async def list_roles(self, *, include_inactive: bool = False):
        stmt = select(Nl2SqlQueryRole).order_by(Nl2SqlQueryRole.id)
        if not include_inactive:
            stmt = stmt.where(Nl2SqlQueryRole.status == "active")
        return list((await self.db.scalars(stmt)).all())

    async def get_role(self, role_id: int):
        return await self.db.get(Nl2SqlQueryRole, role_id)

    async def add_role(self, **kwargs):
        return await self.add(Nl2SqlQueryRole(**kwargs))

    async def update_role(self, role_id: int, **kwargs):
        obj = await self.get_role(role_id)
        if obj is None:
            return None
        for key, value in kwargs.items():
            if value is not None:
                setattr(obj, key, value)
        await self.db.commit()
        await self.db.refresh(obj)
        return obj

    async def list_role_table_permissions(self, role_id: int, *, include_inactive: bool = False):
        stmt = select(Nl2SqlRoleTablePermission).where(
            Nl2SqlRoleTablePermission.role_id == role_id
        )
        if not include_inactive:
            stmt = stmt.where(Nl2SqlRoleTablePermission.status == "active")
        return list((await self.db.scalars(stmt.order_by(Nl2SqlRoleTablePermission.id))).all())

    async def get_table_permission(self, permission_id: int):
        return await self.db.get(Nl2SqlRoleTablePermission, permission_id)

    async def add_table_permission(self, **kwargs):
        return await self.add(Nl2SqlRoleTablePermission(**kwargs))

    async def update_table_permission(self, permission_id: int, **kwargs):
        obj = await self.get_table_permission(permission_id)
        if obj is None:
            return None
        for key, value in kwargs.items():
            if value is not None:
                setattr(obj, key, value)
        await self.db.commit()
        await self.db.refresh(obj)
        return obj

    async def list_role_column_permissions(self, role_id: int, *, include_inactive: bool = False):
        stmt = select(Nl2SqlRoleColumnPermission).where(
            Nl2SqlRoleColumnPermission.role_id == role_id
        )
        if not include_inactive:
            stmt = stmt.where(Nl2SqlRoleColumnPermission.status == "active")
        return list((await self.db.scalars(stmt.order_by(Nl2SqlRoleColumnPermission.id))).all())

    async def get_column_permission(self, permission_id: int):
        return await self.db.get(Nl2SqlRoleColumnPermission, permission_id)

    async def add_column_permission(self, **kwargs):
        return await self.add(Nl2SqlRoleColumnPermission(**kwargs))

    async def update_column_permission(self, permission_id: int, **kwargs):
        obj = await self.get_column_permission(permission_id)
        if obj is None:
            return None
        for key, value in kwargs.items():
            if value is not None:
                setattr(obj, key, value)
        await self.db.commit()
        await self.db.refresh(obj)
        return obj

    async def list_sensitive_fields_admin(self, *, include_inactive: bool = False):
        stmt = select(Nl2SqlSensitiveField).order_by(Nl2SqlSensitiveField.id)
        if not include_inactive:
            stmt = stmt.where(Nl2SqlSensitiveField.status == "active")
        return list((await self.db.scalars(stmt)).all())

    async def get_sensitive_field(self, field_id: int):
        return await self.db.get(Nl2SqlSensitiveField, field_id)

    async def add_sensitive_field(self, **kwargs):
        return await self.add(Nl2SqlSensitiveField(**kwargs))

    async def update_sensitive_field(self, field_id: int, **kwargs):
        obj = await self.get_sensitive_field(field_id)
        if obj is None:
            return None
        for key, value in kwargs.items():
            if value is not None:
                setattr(obj, key, value)
        await self.db.commit()
        await self.db.refresh(obj)
        return obj

    async def delete_history_before(self, before: datetime) -> int:
        result = await self.db.execute(
            delete(Nl2SqlQueryHistory).where(Nl2SqlQueryHistory.create_time < before)
        )
        await self.db.commit()
        return int(result.rowcount or 0)

    async def get_role_by_employee_role(self, employee_role: str):
        return await self.db.scalar(
            select(Nl2SqlQueryRole).where(
                Nl2SqlQueryRole.employee_role == employee_role,
                Nl2SqlQueryRole.status == "active",
            )
        )

    async def list_table_permissions(self, role_id: int):
        result = await self.db.scalars(
            select(Nl2SqlRoleTablePermission).where(
                Nl2SqlRoleTablePermission.role_id == role_id,
                Nl2SqlRoleTablePermission.status == "active",
            )
        )
        return list(result.all())

    async def list_column_permissions(self, role_id: int):
        result = await self.db.scalars(
            select(Nl2SqlRoleColumnPermission).where(
                Nl2SqlRoleColumnPermission.role_id == role_id,
                Nl2SqlRoleColumnPermission.status == "active",
            )
        )
        return list(result.all())

    async def list_sensitive_fields(self):
        result = await self.db.scalars(
            select(Nl2SqlSensitiveField).where(Nl2SqlSensitiveField.status == "active")
        )
        return list(result.all())

    async def list_query_history(
        self,
        user_id: int,
        *,
        limit: int = 20,
        offset: int = 0,
        status: str | None = None,
        start_time: datetime | None = None,
        end_time: datetime | None = None,
    ):
        """按员工自身范围分页读取查询历史。"""
        stmt = select(Nl2SqlQueryHistory).where(Nl2SqlQueryHistory.user_id == user_id)
        if status:
            stmt = stmt.where(Nl2SqlQueryHistory.status == status)
        if start_time:
            stmt = stmt.where(Nl2SqlQueryHistory.create_time >= start_time)
        if end_time:
            stmt = stmt.where(Nl2SqlQueryHistory.create_time <= end_time)
        result = await self.db.scalars(
            stmt.order_by(Nl2SqlQueryHistory.create_time.desc()).limit(limit).offset(offset)
        )
        return list(result.all())

    async def get_query_history(self, user_id: int, query_id: str):
        """按员工自身范围读取单条查询历史。"""
        return await self.db.scalar(
            select(Nl2SqlQueryHistory).where(
                Nl2SqlQueryHistory.user_id == user_id,
                Nl2SqlQueryHistory.query_id == query_id,
            )
        )