mirror of
https://github.com/cgrates/cgrates.git
synced 2026-02-11 18:16:24 +05:00
98 lines
2.4 KiB
Go
98 lines
2.4 KiB
Go
/*
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Rating system designed to be used in VoIP Carriers World
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Copyright (C) 2013 ITsysCOM
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package engine
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import (
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"math"
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"math/rand"
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"time"
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"github.com/cgrates/cgrates/utils"
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)
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const (
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STRATEGY_LOWEST_FIRST = "*lowest_first"
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STRATEGY_HIGHEST_FIRST = "*highest_first"
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STRATEGY_RANDOM = "*random"
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)
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type SharedGroup struct {
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Id string
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AccountParameters map[string]*SharingParameters
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Members []string
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}
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type SharingParameters struct {
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Strategy string
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RateSubject string
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}
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func (sg *SharedGroup) GetMembersExceptUser(ubId string) []string {
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for i, m := range sg.Members {
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if m == ubId {
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a := make([]string, len(sg.Members))
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copy(a, sg.Members)
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a[i], a = a[len(a)-1], a[:len(a)-1]
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return a
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}
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}
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return sg.Members
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}
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func (sg *SharedGroup) PopBalanceByStrategy(account string, balanceChain *BalanceChain) (bal *Balance) {
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bc := *balanceChain
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if len(bc) == 0 {
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return
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}
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index := 0
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sharingParameters := sg.AccountParameters[utils.ANY]
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if sp, hasParamsForAccount := sg.AccountParameters[account]; hasParamsForAccount {
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sharingParameters = sp
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}
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strategy := STRATEGY_RANDOM
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if sharingParameters != nil {
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strategy = sharingParameters.Strategy
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}
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switch strategy {
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case STRATEGY_RANDOM:
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rand.Seed(time.Now().Unix())
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index = rand.Intn(len(bc))
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case STRATEGY_LOWEST_FIRST:
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minVal := math.MaxFloat64
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for i, b := range bc {
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b.RateSubject = sharingParameters.RateSubject
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if b.Value < minVal {
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minVal = b.Value
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index = i
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}
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}
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case STRATEGY_HIGHEST_FIRST:
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maxVal := math.SmallestNonzeroFloat64
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for i, b := range bc {
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b.RateSubject = sharingParameters.RateSubject
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if b.Value > maxVal {
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maxVal = b.Value
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index = i
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}
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}
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}
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bal, bc[index], *balanceChain = bc[index], bc[len(bc)-1], bc[:len(bc)-1]
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return
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}
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