// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
//go:build plus

package models

import (
	"errors"
	teaconst "github.com/TeaOSLab/EdgeAPI/internal/const"
	"github.com/iwind/TeaGo/dbs"
	"github.com/iwind/TeaGo/types"
)

func (this *NodeDAO) CountAllAuthorityNodes(tx *dbs.Tx) (int64, error) {
	return this.Query(tx).
		State(NodeStateEnabled).
		Where("clusterId IN (SELECT id FROM " + SharedNodeClusterDAO.Table + " WHERE state=1)").
		Count()
}

func (this *NodeDAO) CheckNodesLimit(tx *dbs.Tx) error {
	var maxNodes = teaconst.MaxNodes

	if maxNodes <= 0 && !teaconst.IsPlus {
		maxNodes = teaconst.DefaultMaxNodes // 免费版节点数量限制
	}

	// 检查节点数量
	if maxNodes > 0 {
		count, err := this.CountAllAuthorityNodes(tx)
		if err != nil {
			return err
		}
		if count >= int64(maxNodes) {
			if teaconst.IsPlus {
				return errors.New("[商业版]超出最大节点数限制：" + types.String(maxNodes) + "，当前已用：" + types.String(count) + "，请购买更多配额")
			} else {
				return errors.New("[免费版]超出最大节点数限制：" + types.String(maxNodes) + "，当前已用：" + types.String(count) + "，请购买商业版以获得更多配额")
			}
		}
	}

	return nil
}