From 9fd6866073d9edfcf98214736db136700baf79a2 Mon Sep 17 00:00:00 2001
From: DanB <danb@cgrates.org>
Date: Sun, 14 May 2017 19:04:25 +0200
Subject: [PATCH] Adding EventCost to engine

---
 engine/eventcost.go | 86 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 engine/eventcost.go

diff --git a/engine/eventcost.go b/engine/eventcost.go
new file mode 100644
index 000000000..994699259
--- /dev/null
+++ b/engine/eventcost.go
@@ -0,0 +1,86 @@
+/*
+Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
+Copyright (C) ITsysCOM GmbH
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+package engine
+
+import (
+	"time"
+
+	"github.com/cgrates/cgrates/utils"
+)
+
+// ChargedTiming represents one timing attached to a charge
+type ChargedTiming struct {
+	Years     *utils.Years
+	Months    *utils.Months
+	MonthDays *utils.MonthDays
+	WeekDays  *utils.WeekDays
+	StartTime string
+}
+
+// RatingUnit represents one unit out of RatingPlan bounded to event
+type RatingUnit struct {
+	ConnectFee       float64
+	RoudingMethod    string
+	RoundingDecimals int
+	MaxCost          float64
+	MaxCostStrategy  string
+	Timing           *ChargedTiming // This RatingUnit is bounded to specific timing profile
+	Rates            []*Rate
+}
+
+// BalanceCharge represents one unit charged to a balance
+type BalanceCharge struct {
+	UUID        string // balance charged
+	AccountID   string
+	Rating      *RatingUnit    // special price applied on this balance
+	Units       float64        // number of units charged
+	ExtraCharge *BalanceCharge // used in cases when paying *voice with *monetary
+}
+
+// ChargingIncrement represents one unit charged inside an interval
+type ChargingIncrement struct {
+	Usage   time.Duration
+	Cost    float64
+	Rating  *RatingUnit
+	Balance *BalanceCharge
+}
+
+// ChargingInterval represents one interval out of Usage providing charging info
+// eg: PEAK vs OFFPEAK
+type ChargingInterval struct {
+	StartTime  *time.Time
+	Increments []*ChargingIncrement
+}
+
+// EventCost holds cost for an event
+type EventCost struct {
+	CGRID   string
+	RunID   string
+	Cost    float64
+	Usage   time.Duration
+	Charges []*ChargingInterval
+}
+
+// EventCostDigest is an optimized EventCost with smaller footprint to be sent over network or stored
+// not that human friendly as EventCost
+type EventCostDigest struct {
+	CGRID string
+	RunID string
+	Cost  float64
+	Usage time.Duration
+}