from apiflask import APIBlueprint
from iti.applications.service.iot.alert import (
    add_endpoint_alert_log, 
    add_node_alert_log
)
from iti.applications.extensions import db
from iti.applications.common.utils import success, page_schema, page
from iti.applications.models import (
    IotAlertLog,
    IotAlertLogSchema,
)
from .schemas.alert_log import (
    AlertLogQuery,
    AlertLogAddRequest,
    AlertLogUpdateRequest,
    NodeAlertLogAddRequest,
)
from iti.applications.common import ModelFilter
from iti.applications.common.exceptions.biz_exp import BizException
from flask_jwt_extended import jwt_required
from sqlalchemy import select, delete, exists
from sqlalchemy.sql.functions import func
from sqlalchemy.orm import noload
from iti.applications.common import permission

bp = APIBlueprint("iot_alert_log", __name__, url_prefix="/alertLog", tag="告警中心")

@bp.get("/list")
@jwt_required()
@bp.doc(security="JWT")
@permission("iot:alertLog:list")
@bp.input(AlertLogQuery.Schema(partial=True), location="query")
@bp.output(IotAlertLogSchema(many=True))
def list_alert_log(query_data: AlertLogQuery):
    """
    获取告警日志列表
    """

    return success(get_list_or_page(query_data))

@bp.get("/page")
@jwt_required()
@bp.doc(security="JWT")
@permission("iot:alertLog:list")
@bp.input(AlertLogQuery.Schema(partial=True), location="query")
@bp.output(page_schema(IotAlertLogSchema))
def page_alert_log(query_data: AlertLogQuery):
    """
    获取告警日志分页列表
    """

    return success(get_list_or_page(query_data))


@bp.post("/add/<int:endpoint_id>")
# @jwt_required()
# @bp.doc(security="JWT")
# @permission("iot:alertLog:add")
def add_alert_log(endpoint_id: int):
    """
    添加采集端网络不可达告警日志
    """
    
    result = add_endpoint_alert_log(endpoint_id)
    if len(result) > 0:
        raise BizException(result)
    
    return success()

@bp.post("/addNodeValue")
# @jwt_required()
# @bp.doc(security="JWT")
# @permission("iot:alertLog:add")
@bp.input(NodeAlertLogAddRequest, location="json")
def add_node_alert(json_data: dict):
    """
    添加节点值异常告警日志
    """
    node_id = json_data["node_id"]
    alert_value = json_data["alert_value"]
    result = add_node_alert_log(node_id, alert_value)
    if len(result) > 0:
        raise BizException(result)

    return success();


@bp.post("/recover/<int:id>")
@jwt_required()
@bp.doc(security="JWT")
@permission("iot:alertLog:update")
def recover_alert_log(id: int):
    """
    恢复告警日志
    """
    
    alert_log = db.session.scalar(select(IotAlertLog).filter_by(id=id))
    if not alert_log:
        raise BizException("告警日志不存在")

    alert_log.trigger_count =0
    alert_log.status = 0
    db.session.commit()
    return success()

def get_list_or_page(query_data: AlertLogQuery):
    """
    获取告警日志列表
    """
    query = select(IotAlertLog).order_by(IotAlertLog.created_at.desc())
    if query_data.alert_tag is not None:
        query = query.filter(IotAlertLog.alert_tag == query_data.alert_tag)
    if query_data.status is not None:
        query = query.filter(IotAlertLog.status == query_data.status)
    if query_data.page and query_data.size:
        return db.paginate(query, page=query_data.page, per_page=query_data.size)
    else:
        return db.session.scalars(query).all()