From c3fe704be570aab7f648826f296f6a6a0734bf3b Mon Sep 17 00:00:00 2001
From: asolovov <andre.solovov@gmail.com>
Date: Wed, 27 Sep 2023 17:29:17 +0400
Subject: [PATCH 1/2] API-222: GetAvailableMargin

---
 perpsv3.go           |  7 +++++++
 services/accounts.go | 10 ++++++++++
 services/service.go  |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/perpsv3.go b/perpsv3.go
index e695389..a7c8ad1 100644
--- a/perpsv3.go
+++ b/perpsv3.go
@@ -111,6 +111,9 @@ type IPerpsv3 interface {
 	// GetFoundingRate is used to get current market founding rate by given market ID
 	GetFoundingRate(marketId *big.Int) (*big.Int, error)
 
+	// GetAvailableMargin is used to get available margin for given account ID
+	GetAvailableMargin(accountId *big.Int) (*big.Int, 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)
 
@@ -229,6 +232,10 @@ func (p *Perpsv3) GetFoundingRate(marketId *big.Int) (*big.Int, error) {
 	return p.service.GetFoundingRate(marketId)
 }
 
+func (p *Perpsv3) GetAvailableMargin(accountId *big.Int) (*big.Int, error) {
+	return p.service.GetAvailableMargin(accountId)
+}
+
 func (p *Perpsv3) FormatAccounts() ([]*models.Account, error) {
 	return p.service.FormatAccounts()
 }
diff --git a/services/accounts.go b/services/accounts.go
index 213b59b..33e15b6 100644
--- a/services/accounts.go
+++ b/services/accounts.go
@@ -63,6 +63,16 @@ func (s *Service) FormatAccounts() ([]*models.Account, error) {
 	return s.formatAccounts(opts)
 }
 
+func (s *Service) GetAvailableMargin(accountId *big.Int) (*big.Int, error) {
+	margin, err := s.perpsMarket.GetAvailableMargin(nil, accountId)
+	if err != nil {
+		logger.Log().WithField("layer", "").Errorf("get avaliable margin error: %v", err.Error())
+		return nil, errors.GetReadContractErr(err, "perps market", "GetAvailableMargin")
+	}
+
+	return margin, nil
+}
+
 // formatAccounts is used to get accounts from the contract using event filter function for 'AccountCreated' event
 // and given filter options
 func (s *Service) formatAccounts(opts *bind.FilterOpts) ([]*models.Account, error) {
diff --git a/services/service.go b/services/service.go
index 463f469..32366c8 100644
--- a/services/service.go
+++ b/services/service.go
@@ -70,6 +70,9 @@ type IService interface {
 	// GetFoundingRate is used to get current founding rate by given market ID
 	GetFoundingRate(marketId *big.Int) (*big.Int, error)
 
+	// GetAvailableMargin is used to get available margin for given account ID
+	GetAvailableMargin(accountId *big.Int) (*big.Int, 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)
 

From 240729ed9774e819be17ef720a13a5c7685e7758 Mon Sep 17 00:00:00 2001
From: asolovov <andre.solovov@gmail.com>
Date: Wed, 27 Sep 2023 17:33:27 +0400
Subject: [PATCH 2/2] API-222: GetAvailableMargin

---
 mocks/service/mockService.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/mocks/service/mockService.go b/mocks/service/mockService.go
index 211a882..ddfb283 100644
--- a/mocks/service/mockService.go
+++ b/mocks/service/mockService.go
@@ -80,6 +80,21 @@ func (mr *MockIServiceMockRecorder) FormatAccountsLimit(limit interface{}) *gomo
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "FormatAccountsLimit", reflect.TypeOf((*MockIService)(nil).FormatAccountsLimit), limit)
 }
 
+// GetAvailableMargin mocks base method.
+func (m *MockIService) GetAvailableMargin(accountId *big.Int) (*big.Int, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetAvailableMargin", accountId)
+	ret0, _ := ret[0].(*big.Int)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetAvailableMargin indicates an expected call of GetAvailableMargin.
+func (mr *MockIServiceMockRecorder) GetAvailableMargin(accountId interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetAvailableMargin", reflect.TypeOf((*MockIService)(nil).GetAvailableMargin), accountId)
+}
+
 // GetFoundingRate mocks base method.
 func (m *MockIService) GetFoundingRate(marketId *big.Int) (*big.Int, error) {
 	m.ctrl.T.Helper()