package user

import (
	"context"

	"github.com/perfect-panel/server/internal/model/group"
	"github.com/perfect-panel/server/internal/svc"
	"github.com/perfect-panel/server/internal/types"
	"github.com/perfect-panel/server/pkg/logger"
	"github.com/perfect-panel/server/pkg/speedlimit"
	"github.com/perfect-panel/server/pkg/tool"
	"github.com/perfect-panel/server/pkg/xerr"
	"github.com/pkg/errors"
)

type GetUserSubscribeByIdLogic struct {
	logger.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// Get user subcribe by id
func NewGetUserSubscribeByIdLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetUserSubscribeByIdLogic {
	return &GetUserSubscribeByIdLogic{
		Logger: logger.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *GetUserSubscribeByIdLogic) GetUserSubscribeById(req *types.GetUserSubscribeByIdRequest) (resp *types.UserSubscribeDetail, err error) {
	sub, err := l.svcCtx.UserModel.FindOneSubscribeDetailsById(l.ctx, req.Id)
	if err != nil {
		l.Errorw("[GetUserSubscribeByIdLogic] FindOneSubscribeDetailsById error", logger.Field("error", err.Error()))
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "FindOneSubscribeDetailsById error: %v", err.Error())
	}
	var subscribeDetails types.UserSubscribeDetail
	tool.DeepCopy(&subscribeDetails, sub)

	// 填充分组名
	if sub.NodeGroupId > 0 {
		var ng group.NodeGroup
		if err := l.svcCtx.DB.WithContext(l.ctx).First(&ng, sub.NodeGroupId).Error; err == nil {
			subscribeDetails.NodeGroupName = ng.Name
		}
	}

	// Calculate speed limit status
	if sub.Subscribe != nil && sub.Status == 1 {
		result := speedlimit.Calculate(l.ctx, l.svcCtx.DB, sub.UserId, sub.Id, sub.Subscribe.SpeedLimit, sub.Subscribe.TrafficLimit)
		subscribeDetails.EffectiveSpeed = result.EffectiveSpeed
		subscribeDetails.IsThrottled = result.IsThrottled
		subscribeDetails.ThrottleRule = result.ThrottleRule
		subscribeDetails.ThrottleStart = result.ThrottleStart
		subscribeDetails.ThrottleEnd = result.ThrottleEnd
	}

	return &subscribeDetails, nil
}