From 2c94f1f212d35085adde3ae808c7c86203d69681 Mon Sep 17 00:00:00 2001
From: asolovov <andre.solovov@gmail.com>
Date: Fri, 19 Jan 2024 13:18:13 +0300
Subject: [PATCH] SNX-12: add getCollateralPrice

---
 config/config.go       |  2 +-
 models/collateral.go   |  5 +++++
 perpsv3.go             |  7 +++++++
 services/collateral.go | 15 +++++++++++++++
 services/service.go    |  3 +++
 5 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/config/config.go b/config/config.go
index aa8a823..175bc7c 100644
--- a/config/config.go
+++ b/config/config.go
@@ -115,7 +115,7 @@ func GetBaseAndromedaDefaultConfig(rpcURL string) *PerpsvConfig {
 // GetBaseMainnetDefaultConfig is used to get default lib config for base main net
 func GetBaseMainnetDefaultConfig(rpcURL string) *PerpsvConfig {
 	if rpcURL == "" {
-		rpcURL = "https://rpc.ankr.com/base/6259fa6541ffabb10ca241f7f437c2389ab7dda38c7be817ab0fb76992e73ae5"
+		rpcURL = "https://base.fastnode.cc/FNqVEtfWuTiChBumceweFPGEbNkZxtDXrAsHaoklAKNmfQhfxhVQBMijfetdNKMV/"
 	}
 
 	return &PerpsvConfig{
diff --git a/models/collateral.go b/models/collateral.go
index 7dc18ea..0eefa7a 100644
--- a/models/collateral.go
+++ b/models/collateral.go
@@ -29,6 +29,11 @@ type CollateralWithdrawn struct {
 	BlockTimestamp uint64
 }
 
+// CollateralPrice is a collateral price data struct
+type CollateralPrice struct {
+	Price *big.Int
+}
+
 // GetCollateralDepositedFromEvent is used to get CollateralDeposited struct from given contract event
 func GetCollateralDepositedFromEvent(event *core.CoreDeposited, time uint64) *CollateralDeposited {
 	if event == nil {
diff --git a/perpsv3.go b/perpsv3.go
index 97a9d3e..c128a3e 100644
--- a/perpsv3.go
+++ b/perpsv3.go
@@ -191,6 +191,9 @@ type IPerpsv3 interface {
 	// GetRequiredMaintenanceMargin is used to get required maintenance margin for given account ID
 	GetRequiredMaintenanceMargin(accountId *big.Int) (*big.Int, error)
 
+	// GetCollateralPrice is used to get collateral price for given block number and collateralType
+	GetCollateralPrice(blockNumber *big.Int, collateralType common.Address) (*models.CollateralPrice, error)
+
 	// FormatAccount is used to get account, and it's additional data from the contract by given account id
 	FormatAccount(id *big.Int) (*models.Account, error)
 
@@ -413,6 +416,10 @@ func (p *Perpsv3) GetRequiredMaintenanceMargin(accountId *big.Int) (*big.Int, er
 	return p.service.GetRequiredMaintenanceMargin(accountId)
 }
 
+func (p *Perpsv3) GetCollateralPrice(blockNumber *big.Int, collateralType common.Address) (*models.CollateralPrice, error) {
+	return p.service.GetCollateralPrice(blockNumber, collateralType)
+}
+
 func (p *Perpsv3) FormatAccounts() ([]*models.Account, error) {
 	return p.service.FormatAccounts()
 }
diff --git a/services/collateral.go b/services/collateral.go
index c25e258..67b14c9 100644
--- a/services/collateral.go
+++ b/services/collateral.go
@@ -2,6 +2,7 @@ package services
 
 import (
 	"context"
+	"github.com/ethereum/go-ethereum/common"
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/accounts/abi/bind"
@@ -12,6 +13,20 @@ import (
 	"github.com/gateway-fm/perpsv3-Go/pkg/logger"
 )
 
+func (s *Service) GetCollateralPrice(blockNumber *big.Int, collateralType common.Address) (*models.CollateralPrice, error) {
+	var opts *bind.CallOpts
+	if blockNumber.Int64() > 0 {
+		opts = &bind.CallOpts{BlockNumber: blockNumber}
+	}
+
+	price, err := s.core.GetCollateralPrice(opts, collateralType)
+	if err != nil {
+		return nil, errors.GetReadContractErr(err, "core", "GetCollateralPrice")
+	}
+
+	return &models.CollateralPrice{Price: price}, nil
+}
+
 func (s *Service) RetrieveCollateralWithdrawnLimit(limit uint64) ([]*models.CollateralWithdrawn, error) {
 	iterations, last, err := s.getIterationsForLimitQuery(limit)
 	if err != nil {
diff --git a/services/service.go b/services/service.go
index c032910..d860937 100644
--- a/services/service.go
+++ b/services/service.go
@@ -118,6 +118,9 @@ type IService interface {
 	// GetRequiredMaintenanceMargin is used to get required maintenance margin for given account ID
 	GetRequiredMaintenanceMargin(accountId *big.Int) (*big.Int, error)
 
+	// GetCollateralPrice is used to get collateral price for given block number and collateralType
+	GetCollateralPrice(blockNumber *big.Int, collateralType common.Address) (*models.CollateralPrice, error)
+
 	// FormatAccount is used to get account, and it's additional data from the contract by given account id
 	FormatAccount(id *big.Int) (*models.Account, error)