MM-10140: API Implementation for Schemes related Endpoints (#8615)

* Implement basic scheme CRUD endpoints.

* Get All Schemes (Paged) Endpoint and store plumbing.

* Add get teams/channels for schemes.

* Fix unit tests.

* Review fixes.

* More review fixes.

13 files changed, 177 insertions, 4 deletions

diff --git a/store/layered_store.go b/store/layered_store.go
index 603976fc0..cbabe9d22 100644
--- a/store/layered_store.go
+++ b/store/layered_store.go
@@ -292,3 +292,9 @@ func (s *LayeredSchemeStore) Delete(schemeId string) StoreChannel {
 		return supplier.SchemeDelete(s.TmpContext, schemeId)
 	})
 }
+
+func (s *LayeredSchemeStore) GetAllPage(scope string, offset int, limit int) StoreChannel {
+	return s.RunQuery(func(supplier LayeredStoreSupplier) *LayeredStoreSupplierResult {
+		return supplier.SchemeGetAllPage(s.TmpContext, scope, offset, limit)
+	})
+}
diff --git a/store/layered_store_supplier.go b/store/layered_store_supplier.go
index 04fa26fd3..4f57004bb 100644
--- a/store/layered_store_supplier.go
+++ b/store/layered_store_supplier.go
@@ -42,4 +42,5 @@ type LayeredStoreSupplier interface {
 	SchemeSave(ctx context.Context, scheme *model.Scheme, hints ...LayeredStoreHint) *LayeredStoreSupplierResult
 	SchemeGet(ctx context.Context, schemeId string, hints ...LayeredStoreHint) *LayeredStoreSupplierResult
 	SchemeDelete(ctx context.Context, schemeId string, hints ...LayeredStoreHint) *LayeredStoreSupplierResult
+	SchemeGetAllPage(ctx context.Context, scope string, offset int, limit int, hints ...LayeredStoreHint) *LayeredStoreSupplierResult
 }
diff --git a/store/local_cache_supplier_schemes.go b/store/local_cache_supplier_schemes.go
index 2a8f73a71..809c60510 100644
--- a/store/local_cache_supplier_schemes.go
+++ b/store/local_cache_supplier_schemes.go
@@ -42,3 +42,7 @@ func (s *LocalCacheSupplier) SchemeDelete(ctx context.Context, schemeId string,
 
 	return s.Next().SchemeDelete(ctx, schemeId, hints...)
 }
+
+func (s *LocalCacheSupplier) SchemeGetAllPage(ctx context.Context, scope string, offset int, limit int, hints ...LayeredStoreHint) *LayeredStoreSupplierResult {
+	return s.Next().SchemeGetAllPage(ctx, scope, offset, limit, hints...)
+}
diff --git a/store/redis_supplier_schemes.go b/store/redis_supplier_schemes.go
index 4c05e9329..3bd747044 100644
--- a/store/redis_supplier_schemes.go
+++ b/store/redis_supplier_schemes.go
@@ -23,3 +23,8 @@ func (s *RedisSupplier) SchemeDelete(ctx context.Context, schemeId string, hints
 	// TODO: Redis caching.
 	return s.Next().SchemeDelete(ctx, schemeId, hints...)
 }
+
+func (s *RedisSupplier) SchemeGetAllPage(ctx context.Context, scope string, offset int, limit int, hints ...LayeredStoreHint) *LayeredStoreSupplierResult {
+	// TODO: Redis caching.
+	return s.Next().SchemeGetAllPage(ctx, scope, offset, limit, hints...)
+}
diff --git a/store/sqlstore/channel_store.go b/store/sqlstore/channel_store.go
index b12c553a4..beef1be80 100644
--- a/store/sqlstore/channel_store.go
+++ b/store/sqlstore/channel_store.go
@@ -1730,7 +1730,7 @@ func (s SqlChannelStore) GetMembersByIds(channelId string, userIds []string) sto
 
 func (s SqlChannelStore) GetChannelsByScheme(schemeId string, offset int, limit int) store.StoreChannel {
 	return store.Do(func(result *store.StoreResult) {
-		var channels []*model.Channel
+		var channels model.ChannelList
 		_, err := s.GetReplica().Select(&channels, "SELECT * FROM Channels WHERE SchemeId = :SchemeId ORDER BY DisplayName LIMIT :Limit OFFSET :Offset", map[string]interface{}{"SchemeId": schemeId, "Offset": offset, "Limit": limit})
 		if err != nil {
 			result.Err = model.NewAppError("SqlChannelStore.GetChannelsByScheme", "store.sql_channel.get_by_scheme.app_error", nil, "schemeId="+schemeId+" "+err.Error(), http.StatusInternalServerError)
diff --git a/store/sqlstore/scheme_supplier.go b/store/sqlstore/scheme_supplier.go
index 278d1a3c4..448e5a92f 100644
--- a/store/sqlstore/scheme_supplier.go
+++ b/store/sqlstore/scheme_supplier.go
@@ -270,3 +270,22 @@ func (s *SqlSupplier) SchemeDelete(ctx context.Context, schemeId string, hints .
 
 	return result
 }
+
+func (s *SqlSupplier) SchemeGetAllPage(ctx context.Context, scope string, offset int, limit int, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	result := store.NewSupplierResult()
+
+	var schemes []*model.Scheme
+
+	scopeClause := ""
+	if len(scope) > 0 {
+		scopeClause = " AND Scope=:Scope "
+	}
+
+	if _, err := s.GetReplica().Select(&schemes, "SELECT * from Schemes WHERE DeleteAt = 0 "+scopeClause+" ORDER BY CreateAt DESC LIMIT :Limit OFFSET :Offset", map[string]interface{}{"Limit": limit, "Offset": offset, "Scope": scope}); err != nil {
+		result.Err = model.NewAppError("SqlSchemeStore.Get", "store.sql_scheme.get.app_error", nil, err.Error(), http.StatusInternalServerError)
+	}
+
+	result.Data = schemes
+
+	return result
+}
diff --git a/store/store.go b/store/store.go
index 1085198bd..dd149fbe9 100644
--- a/store/store.go
+++ b/store/store.go
@@ -485,5 +485,6 @@ type RoleStore interface {
 type SchemeStore interface {
 	Save(scheme *model.Scheme) StoreChannel
 	Get(schemeId string) StoreChannel
+	GetAllPage(scope string, offset int, limit int) StoreChannel
 	Delete(schemeId string) StoreChannel
 }
diff --git a/store/storetest/channel_store.go b/store/storetest/channel_store.go
index 7427c816c..d90a0ae1e 100644
--- a/store/storetest/channel_store.go
+++ b/store/storetest/channel_store.go
@@ -2239,18 +2239,18 @@ func testChannelStoreGetChannelsByScheme(t *testing.T, ss store.Store) {
 	// Get the channels by a valid Scheme ID.
 	res1 := <-ss.Channel().GetChannelsByScheme(s1.Id, 0, 100)
 	assert.Nil(t, res1.Err)
-	d1 := res1.Data.([]*model.Channel)
+	d1 := res1.Data.(model.ChannelList)
 	assert.Len(t, d1, 2)
 
 	// Get the channels by a valid Scheme ID where there aren't any matching Channel.
 	res2 := <-ss.Channel().GetChannelsByScheme(s2.Id, 0, 100)
 	assert.Nil(t, res2.Err)
-	d2 := res2.Data.([]*model.Channel)
+	d2 := res2.Data.(model.ChannelList)
 	assert.Len(t, d2, 0)
 
 	// Get the channels by an invalid Scheme ID.
 	res3 := <-ss.Channel().GetChannelsByScheme(model.NewId(), 0, 100)
 	assert.Nil(t, res3.Err)
-	d3 := res3.Data.([]*model.Channel)
+	d3 := res3.Data.(model.ChannelList)
 	assert.Len(t, d3, 0)
 }
diff --git a/store/storetest/mocks/LayeredStoreDatabaseLayer.go b/store/storetest/mocks/LayeredStoreDatabaseLayer.go
index 6f6776b47..a505b6434 100644
--- a/store/storetest/mocks/LayeredStoreDatabaseLayer.go
+++ b/store/storetest/mocks/LayeredStoreDatabaseLayer.go
@@ -632,6 +632,29 @@ func (_m *LayeredStoreDatabaseLayer) SchemeGet(ctx context.Context, schemeId str
 	return r0
 }
 
+// SchemeGetAllPage provides a mock function with given fields: ctx, scope, offset, limit, hints
+func (_m *LayeredStoreDatabaseLayer) SchemeGetAllPage(ctx context.Context, scope string, offset int, limit int, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	_va := make([]interface{}, len(hints))
+	for _i := range hints {
+		_va[_i] = hints[_i]
+	}
+	var _ca []interface{}
+	_ca = append(_ca, ctx, scope, offset, limit)
+	_ca = append(_ca, _va...)
+	ret := _m.Called(_ca...)
+
+	var r0 *store.LayeredStoreSupplierResult
+	if rf, ok := ret.Get(0).(func(context.Context, string, int, int, ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult); ok {
+		r0 = rf(ctx, scope, offset, limit, hints...)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*store.LayeredStoreSupplierResult)
+		}
+	}
+
+	return r0
+}
+
 // SchemeSave provides a mock function with given fields: ctx, scheme, hints
 func (_m *LayeredStoreDatabaseLayer) SchemeSave(ctx context.Context, scheme *model.Scheme, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
 	_va := make([]interface{}, len(hints))
diff --git a/store/storetest/mocks/LayeredStoreSupplier.go b/store/storetest/mocks/LayeredStoreSupplier.go
index 8e1920d17..18dbe3af1 100644
--- a/store/storetest/mocks/LayeredStoreSupplier.go
+++ b/store/storetest/mocks/LayeredStoreSupplier.go
@@ -329,6 +329,29 @@ func (_m *LayeredStoreSupplier) SchemeGet(ctx context.Context, schemeId string,
 	return r0
 }
 
+// SchemeGetAllPage provides a mock function with given fields: ctx, scope, offset, limit, hints
+func (_m *LayeredStoreSupplier) SchemeGetAllPage(ctx context.Context, scope string, offset int, limit int, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	_va := make([]interface{}, len(hints))
+	for _i := range hints {
+		_va[_i] = hints[_i]
+	}
+	var _ca []interface{}
+	_ca = append(_ca, ctx, scope, offset, limit)
+	_ca = append(_ca, _va...)
+	ret := _m.Called(_ca...)
+
+	var r0 *store.LayeredStoreSupplierResult
+	if rf, ok := ret.Get(0).(func(context.Context, string, int, int, ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult); ok {
+		r0 = rf(ctx, scope, offset, limit, hints...)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*store.LayeredStoreSupplierResult)
+		}
+	}
+
+	return r0
+}
+
 // SchemeSave provides a mock function with given fields: ctx, scheme, hints
 func (_m *LayeredStoreSupplier) SchemeSave(ctx context.Context, scheme *model.Scheme, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
 	_va := make([]interface{}, len(hints))
diff --git a/store/storetest/mocks/SchemeStore.go b/store/storetest/mocks/SchemeStore.go
index 00eeb0573..2868521b3 100644
--- a/store/storetest/mocks/SchemeStore.go
+++ b/store/storetest/mocks/SchemeStore.go
@@ -45,6 +45,22 @@ func (_m *SchemeStore) Get(schemeId string) store.StoreChannel {
 	return r0
 }
 
+// GetAllPage provides a mock function with given fields: scope, offset, limit
+func (_m *SchemeStore) GetAllPage(scope string, offset int, limit int) store.StoreChannel {
+	ret := _m.Called(scope, offset, limit)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(string, int, int) store.StoreChannel); ok {
+		r0 = rf(scope, offset, limit)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // Save provides a mock function with given fields: scheme
 func (_m *SchemeStore) Save(scheme *model.Scheme) store.StoreChannel {
 	ret := _m.Called(scheme)
diff --git a/store/storetest/mocks/SqlStore.go b/store/storetest/mocks/SqlStore.go
index baf112e87..021baa7d3 100644
--- a/store/storetest/mocks/SqlStore.go
+++ b/store/storetest/mocks/SqlStore.go
@@ -143,6 +143,20 @@ func (_m *SqlStore) CreateColumnIfNotExists(tableName string, columnName string,
 	return r0
 }
 
+// CreateColumnIfNotExistsNoDefault provides a mock function with given fields: tableName, columnName, mySqlColType, postgresColType
+func (_m *SqlStore) CreateColumnIfNotExistsNoDefault(tableName string, columnName string, mySqlColType string, postgresColType string) bool {
+	ret := _m.Called(tableName, columnName, mySqlColType, postgresColType)
+
+	var r0 bool
+	if rf, ok := ret.Get(0).(func(string, string, string, string) bool); ok {
+		r0 = rf(tableName, columnName, mySqlColType, postgresColType)
+	} else {
+		r0 = ret.Get(0).(bool)
+	}
+
+	return r0
+}
+
 // CreateCompositeIndexIfNotExists provides a mock function with given fields: indexName, tableName, columnNames
 func (_m *SqlStore) CreateCompositeIndexIfNotExists(indexName string, tableName string, columnNames []string) bool {
 	ret := _m.Called(indexName, tableName, columnNames)
diff --git a/store/storetest/scheme_store.go b/store/storetest/scheme_store.go
index 45d136d3e..c0cbe5deb 100644
--- a/store/storetest/scheme_store.go
+++ b/store/storetest/scheme_store.go
@@ -17,6 +17,7 @@ func TestSchemeStore(t *testing.T, ss store.Store) {
 
 	t.Run("Save", func(t *testing.T) { testSchemeStoreSave(t, ss) })
 	t.Run("Get", func(t *testing.T) { testSchemeStoreGet(t, ss) })
+	t.Run("GetAllPage", func(t *testing.T) { testSchemeStoreGetAllPage(t, ss) })
 	t.Run("Delete", func(t *testing.T) { testSchemeStoreDelete(t, ss) })
 }
 
@@ -171,6 +172,66 @@ func testSchemeStoreGet(t *testing.T, ss store.Store) {
 	assert.NotNil(t, res3.Err)
 }
 
+func testSchemeStoreGetAllPage(t *testing.T, ss store.Store) {
+	// Save a scheme to test with.
+	schemes := []*model.Scheme{
+		{
+			Name:        model.NewId(),
+			Description: model.NewId(),
+			Scope:       model.SCHEME_SCOPE_TEAM,
+		},
+		{
+			Name:        model.NewId(),
+			Description: model.NewId(),
+			Scope:       model.SCHEME_SCOPE_CHANNEL,
+		},
+		{
+			Name:        model.NewId(),
+			Description: model.NewId(),
+			Scope:       model.SCHEME_SCOPE_TEAM,
+		},
+		{
+			Name:        model.NewId(),
+			Description: model.NewId(),
+			Scope:       model.SCHEME_SCOPE_CHANNEL,
+		},
+	}
+
+	for _, scheme := range schemes {
+		store.Must(ss.Scheme().Save(scheme))
+	}
+
+	r1 := <-ss.Scheme().GetAllPage("", 0, 2)
+	assert.Nil(t, r1.Err)
+	s1 := r1.Data.([]*model.Scheme)
+	assert.Len(t, s1, 2)
+
+	r2 := <-ss.Scheme().GetAllPage("", 2, 2)
+	assert.Nil(t, r2.Err)
+	s2 := r2.Data.([]*model.Scheme)
+	assert.Len(t, s2, 2)
+	assert.NotEqual(t, s1[0].Name, s2[0].Name)
+	assert.NotEqual(t, s1[0].Name, s2[1].Name)
+	assert.NotEqual(t, s1[1].Name, s2[0].Name)
+	assert.NotEqual(t, s1[1].Name, s2[1].Name)
+
+	r3 := <-ss.Scheme().GetAllPage("team", 0, 1000)
+	assert.Nil(t, r3.Err)
+	s3 := r3.Data.([]*model.Scheme)
+	assert.NotZero(t, len(s3))
+	for _, s := range s3 {
+		assert.Equal(t, "team", s.Scope)
+	}
+
+	r4 := <-ss.Scheme().GetAllPage("channel", 0, 1000)
+	assert.Nil(t, r4.Err)
+	s4 := r4.Data.([]*model.Scheme)
+	assert.NotZero(t, len(s4))
+	for _, s := range s4 {
+		assert.Equal(t, "channel", s.Scope)
+	}
+}
+
 func testSchemeStoreDelete(t *testing.T, ss store.Store) {
 	// Save a new scheme.
 	s1 := &model.Scheme{