feat: add toolbox repository interface

internal/repository/memoryrepo/memory_repository.go

@@ -0,0 +1,96 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package memoryrepo
+
+import (
+	"fmt"
+	"maps"
+	"slices"
+	"sync"
+
+	"github.com/googleapis/genai-toolbox/internal/repository"
+)
+
+// MemoryRepository is the default repository that is used that uses local memory
+type MemoryRepository struct {
+	data map[string]repository.Resource
+	mu   sync.RWMutex
+}
+
+// New initialize and creates new MemoryRepository for all the resources
+func New() (
+	*MemoryRepository,
+	*MemoryRepository,
+	*MemoryRepository,
+	*MemoryRepository,
+) {
+	sourceR := &MemoryRepository{data: make(map[string]repository.Resource)}
+	authServiceR := &MemoryRepository{data: make(map[string]repository.Resource)}
+	toolR := &MemoryRepository{data: make(map[string]repository.Resource)}
+	toolsetR := &MemoryRepository{data: make(map[string]repository.Resource)}
+	return sourceR, authServiceR, toolR, toolsetR
+}
+
+// Create creates a new resource in MemoryRepository
+func (r *MemoryRepository) Create(resource repository.Resource) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	name := resource.Name
+	if _, exists := r.data[name]; exists {
+		return fmt.Errorf("name %s already exists", name)
+	}
+
+	r.data[name] = resource
+	return nil
+}
+
+func (r *MemoryRepository) Update(resource repository.Resource) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	name := resource.Name
+	r.data[name] = resource
+	return nil
+}
+
+func (r *MemoryRepository) Delete(name string) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	// In the future, we can implement soft delete and garbage collector
+	// to clean up deleted datas
+	delete(r.data, name)
+	return nil
+}
+
+func (r *MemoryRepository) GetAll() ([]repository.Resource, error) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
+	return slices.Collect(maps.Values(r.data)), nil
+}
+
+func (r *MemoryRepository) Get(name string) (repository.Resource, error) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
+	var d repository.Resource
+	d, exists := r.data[name]
+	if !exists {
+		return d, fmt.Errorf("unable to retrieve data: %s", name)
+	}
+	return d, nil
+}

internal/repository/memoryrepo/memory_repository_test.go

@@ -0,0 +1,163 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package memoryrepo
+
+import (
+	"reflect"
+	"sort"
+	"testing"
+
+	"github.com/googleapis/genai-toolbox/internal/repository"
+)
+
+// sortData sorts the datas based on name
+func sortData(datas []repository.Resource) []repository.Resource {
+	sort.Slice(datas, func(i, j int) bool {
+		return datas[i].Name < datas[j].Name // Sorts by Name in ascending order
+	})
+	return datas
+}
+
+func TestRepository(t *testing.T) {
+	sourceR, _, _, _ := New()
+
+	mockSource := repository.Resource{Name: "my-source", Type: "source-type", Configuration: `{"type": "source-type", "host": "127.0.0.1"}`, IsActive: true}
+	mockSource2 := repository.Resource{Name: "my-source2", Type: "source-type", Configuration: `{"type": "source-type", "host": "127.0.0.1"}`, IsActive: true}
+
+	// run test for Create
+	tcsCreate := []struct {
+		name      string
+		data      any
+		isErr     bool
+		errString string
+	}{
+		{
+			name: "create mockSource",
+			data: mockSource,
+		},
+		{
+			name: "create mockSource2",
+			data: mockSource2,
+		},
+		{
+			name:      "insert entity with same name",
+			data:      mockSource,
+			isErr:     true,
+			errString: "name my-source already exists",
+		},
+	}
+	for _, tc := range tcsCreate {
+		t.Run(tc.name, func(t *testing.T) {
+			err := sourceR.Create(tc.data.(repository.Resource))
+			if tc.isErr {
+				if err == nil {
+					t.Fatalf("should be throwing an error")
+				}
+				if err.Error() != tc.errString {
+					t.Fatalf("unexpected error string: got %s, want %s", err, tc.errString)
+				}
+			} else {
+				if err != nil {
+					t.Fatalf("unexpected error: %s", err)
+				}
+			}
+		})
+	}
+
+	// test Get()
+	tcsGet := []struct {
+		name       string
+		sourceName string
+		data       any
+		isErr      bool
+		errString  string
+	}{
+		{
+			name:       "get my-source",
+			sourceName: "my-source",
+			data:       mockSource,
+		},
+		{
+			name:       "get nonexisting",
+			sourceName: "nonexisting",
+			isErr:      true,
+			errString:  "unable to retrieve data: nonexisting",
+		},
+	}
+	for _, tc := range tcsGet {
+		t.Run(tc.name, func(t *testing.T) {
+			d, err := sourceR.Get(tc.sourceName)
+			if tc.isErr {
+				if err == nil {
+					t.Fatalf("should be throwing an error")
+				}
+				if err.Error() != tc.errString {
+					t.Fatalf("unexpected error string: got %s, want %s", err, tc.errString)
+				}
+			} else {
+				if !reflect.DeepEqual(d, tc.data) {
+					t.Fatalf("unexpected data: got %+v, want %+v", d, tc.data)
+				}
+				if err != nil {
+					t.Fatalf("unexpected error: %s", err)
+				}
+			}
+		})
+	}
+
+	// test GetAll()
+	allMocks := []repository.Resource{mockSource, mockSource2}
+	datas, err := sourceR.GetAll()
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+	if !reflect.DeepEqual(allMocks, sortData(datas)) {
+		t.Fatalf("unexpected error: got %+v, want %+v", allMocks, datas)
+	}
+
+	// test Update()
+	mockSource2New := mockSource2
+	mockSource2New.IsActive = false
+	err = sourceR.Update(mockSource2New)
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+
+	// check updated repo
+	allMocks = []repository.Resource{mockSource, mockSource2New}
+	datas, err = sourceR.GetAll()
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+	if !reflect.DeepEqual(allMocks, sortData(datas)) {
+		t.Fatalf("unexpected error: got %+v, want %+v", allMocks, datas)
+	}
+
+	// test Delete()
+	err = sourceR.Delete("my-source2")
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+
+	// check updated repo
+	allMocks = []repository.Resource{mockSource}
+	datas, err = sourceR.GetAll()
+	if err != nil {
+		t.Fatalf("unexpected error: %s", err)
+	}
+	if !reflect.DeepEqual(allMocks, sortData(datas)) {
+		t.Fatalf("unexpected error: got %+v, want %+v", allMocks, datas)
+	}
+}

internal/repository/repository.go

@@ -0,0 +1,47 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package repository
+
+import (
+	"time"
+)
+
+type Repository interface {
+	Create(r Resource) error
+	Update(r Resource) error  // if entity is not present, it will run Create
+	Delete(name string) error // name is unique
+	GetAll() ([]Resource, error)
+	GetByName(name string) (Resource, error) // name is unique
+}
+
+type ResourceMetadata struct {
+	// Optional: Time the resource was marked for deletion
+	DeletionTimestamp time.Time
+	// Optional: Indicate if the deletion is blocked by a tool
+	DeletionBlocked bool
+}
+
+// Resource can represent either source, authService, tool or toolset
+type Resource struct {
+	// The name of the resource
+	Name string
+	// The type of the resource (e.g. alloydb-postgres)
+	Type string
+	// The json configuration of the resource
+	Configuration string // json configuration
+	// Indication on whether the resource is active, defaulted to true
+	IsActive bool // default: true
+	Metadata ResourceMetadata
+}