feat: adds interplex as a caching provider (#1328)

* feat: adds interplex as a caching provider

Signed-off-by: AlexsJones <alexsimonjones@gmail.com>

* chore: refactored cache input to lower

Signed-off-by: AlexsJones <alexsimonjones@gmail.com>

* chore: refactored cache input to lower

Signed-off-by: AlexsJones <alexsimonjones@gmail.com>

---------

Signed-off-by: AlexsJones <alexsimonjones@gmail.com>

pkg/cache/interplex_based_test.go

@@ -0,0 +1,77 @@
+package cache
+
+import (
+	rpc "buf.build/gen/go/interplex-ai/schemas/grpc/go/protobuf/schema/v1/schemav1grpc"
+	schemav1 "buf.build/gen/go/interplex-ai/schemas/protocolbuffers/go/protobuf/schema/v1"
+	"context"
+	"errors"
+	"google.golang.org/grpc"
+	"net"
+	"testing"
+)
+
+func TestInterplexCache(t *testing.T) {
+	cache := &InterplexCache{
+		configuration: InterplexCacheConfiguration{
+			ConnectionString: "localhost:50051",
+		},
+	}
+
+	// Mock GRPC server setup
+	go func() {
+		lis, err := net.Listen("tcp", ":50051")
+		if err != nil {
+			t.Fatalf("failed to listen: %v", err)
+		}
+		s := grpc.NewServer()
+		rpc.RegisterCacheServiceServer(s, &mockCacheService{})
+		if err := s.Serve(lis); err != nil {
+			t.Fatalf("failed to serve: %v", err)
+		}
+	}()
+
+	t.Run("TestStore", func(t *testing.T) {
+		err := cache.Store("key1", "value1")
+		if err != nil {
+			t.Errorf("Error storing value: %v", err)
+		}
+	})
+
+	t.Run("TestLoad", func(t *testing.T) {
+		value, err := cache.Load("key1")
+		if err != nil {
+			t.Errorf("Error loading value: %v", err)
+		}
+		if value != "value1" {
+			t.Errorf("Expected value1, got %v", value)
+		}
+	})
+
+	t.Run("TestExists", func(t *testing.T) {
+		exists := cache.Exists("key1")
+		if !exists {
+			t.Errorf("Expected key1 to exist")
+		}
+	})
+}
+
+type mockCacheService struct {
+	rpc.UnimplementedCacheServiceServer
+	data map[string]string
+}
+
+func (m *mockCacheService) Set(ctx context.Context, req *schemav1.SetRequest) (*schemav1.SetResponse, error) {
+	if m.data == nil {
+		m.data = make(map[string]string)
+	}
+	m.data[req.Key] = req.Value
+	return &schemav1.SetResponse{}, nil
+}
+
+func (m *mockCacheService) Get(ctx context.Context, req *schemav1.GetRequest) (*schemav1.GetResponse, error) {
+	value, exists := m.data[req.Key]
+	if !exists {
+		return nil, errors.New("key not found")
+	}
+	return &schemav1.GetResponse{Value: value}, nil
+}