package iot_card

import (
	"context"
	"strconv"

	cardapp "github.com/break/junhong_cmp_fiber/internal/application/cardobservation"
	"github.com/break/junhong_cmp_fiber/internal/gateway"
	"github.com/break/junhong_cmp_fiber/internal/model"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
	"github.com/break/junhong_cmp_fiber/pkg/errors"
	"go.uber.org/zap"
)

// validateCardAccess 通过 ICCID 验证卡存在且当前用户有权限访问
// 利用 GORM 数据权限回调自动过滤，确保越权请求返回 404
func (s *Service) validateCardAccess(ctx context.Context, iccid string) error {
	_, err := s.iotCardStore.GetByICCID(ctx, iccid)
	if err != nil {
		return errors.New(errors.CodeNotFound, "卡不存在或无权限访问")
	}
	return nil
}

// GatewayQueryCardStatus 查询卡实时状态
func (s *Service) GatewayQueryCardStatus(ctx context.Context, iccid string) (*gateway.CardStatusResp, error) {
	if err := s.validateCardAccess(ctx, iccid); err != nil {
		return nil, err
	}
	return s.gatewayClient.QueryCardStatus(ctx, &gateway.CardStatusReq{
		CardNo: iccid,
	})
}

// GatewayQueryFlow 查询流量使用情况
func (s *Service) GatewayQueryFlow(ctx context.Context, iccid string) (*gateway.FlowUsageResp, error) {
	if err := s.validateCardAccess(ctx, iccid); err != nil {
		return nil, err
	}
	return s.gatewayClient.QueryFlow(ctx, &gateway.FlowQueryReq{
		CardNo: iccid,
	})
}

// GatewayQueryRealnameStatus 查询实名认证状态
func (s *Service) GatewayQueryRealnameStatus(ctx context.Context, iccid string) (*gateway.RealnameStatusResp, error) {
	if err := s.validateCardAccess(ctx, iccid); err != nil {
		return nil, err
	}
	return s.gatewayClient.QueryRealnameStatus(ctx, &gateway.CardStatusReq{
		CardNo: iccid,
	})
}

// GatewayGetRealnameLink 获取实名认证跳转链接
func (s *Service) GatewayGetRealnameLink(ctx context.Context, iccid string) (*gateway.RealnameLinkResp, error) {
	card, err := s.iotCardStore.GetByICCID(ctx, iccid)
	if err != nil {
		return nil, errors.New(errors.CodeNotFound, "卡不存在或无权限访问")
	}
	response, err := s.gatewayClient.GetRealnameLink(ctx, &gateway.CardStatusReq{
		CardNo: iccid,
	})
	if err != nil {
		return nil, err
	}
	s.dispatchAdminRealnameObservation(ctx, card)
	return response, nil
}

func (s *Service) dispatchAdminRealnameObservation(ctx context.Context, card *model.IotCard) {
	if s.observationSeries == nil || card == nil {
		return
	}
	requestID := requestIDFromContext(ctx)
	s.observationSeries.DispatchRealnameWithCapability(ctx, cardapp.RealnameCapabilitySeriesRequest{
		CarrierID: card.CarrierID,
		Request: cardapp.SeriesRequest{
			Scene:         constants.CardObservationSceneAdminRealnameLink,
			ResourceType:  constants.CardObservationResourceTypeCard,
			ResourceID:    strconv.FormatUint(uint64(card.ID), 10),
			SyncType:      constants.CardObservationSyncTypeRealname,
			ExpectedValue: "verified", Source: constants.CardObservationSourceBusinessEvent,
			RequestID: requestID, CorrelationID: requestID,
		},
	})
}

// GatewayStopCard 停止卡服务（通过 Gateway API）
func (s *Service) GatewayStopCard(ctx context.Context, iccid string) error {
	if err := s.validateCardAccess(ctx, iccid); err != nil {
		return err
	}
	s.logger.Info("调用网关停机（手动）", zap.String("iccid", iccid))
	if err := s.gatewayClient.StopCard(ctx, &gateway.CardOperationReq{
		CardNo: iccid,
	}); err != nil {
		s.logger.Error("网关停机失败（手动）", zap.String("iccid", iccid), zap.Error(err))
		return err
	}
	s.logger.Info("网关停机成功（手动）", zap.String("iccid", iccid))
	return nil
}

// GatewayStartCard 恢复卡服务（通过 Gateway API）
func (s *Service) GatewayStartCard(ctx context.Context, iccid string) error {
	if err := s.validateCardAccess(ctx, iccid); err != nil {
		return err
	}
	s.logger.Info("调用网关复机（手动）", zap.String("iccid", iccid))
	if err := s.gatewayClient.StartCard(ctx, &gateway.CardOperationReq{
		CardNo: iccid,
	}); err != nil {
		s.logger.Error("网关复机失败（手动）", zap.String("iccid", iccid), zap.Error(err))
		return err
	}
	s.logger.Info("网关复机成功（手动）", zap.String("iccid", iccid))
	return nil
}