fix: shared renamed to pkg, formatting changes

pkg/plugin/implementation/publisher/cmd/plugin.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/beckn/beckn-onix/pkg/plugin/definition"
+	"github.com/beckn/beckn-onix/pkg/plugin/implementation/publisher"
+)
+
+// Returns error if required fields are missing.
+func validateConfig(config map[string]string) (*publisher.Config, error) {
+	if config == nil {
+		return nil, fmt.Errorf("config cannot be nil")
+	}
+
+	project, ok := config["project"]
+	if !ok || project == "" {
+		return nil, fmt.Errorf("project ID is required")
+	}
+
+	topic, ok := config["topic"]
+	if !ok || topic == "" {
+		return nil, fmt.Errorf("topic ID is required")
+	}
+
+	return &publisher.Config{
+		ProjectID: project,
+		TopicID:   topic,
+	}, nil
+}
+
+// PublisherProvider implements the definition.PublisherProvider interface.
+type PublisherProvider struct{}
+
+// New creates a new Publisher instance.
+func (p PublisherProvider) New(ctx context.Context, config map[string]string) (definition.Publisher, error) {
+	if ctx == nil {
+		return nil, fmt.Errorf("context cannot be nil")
+	}
+
+	cfg, err := validateConfig(config)
+	if err != nil {
+		return nil, fmt.Errorf("invalid config: %w", err)
+	}
+
+	return publisher.New(ctx, cfg)
+}
+
+// Provider is the exported symbol that the plugin manager will look for.
+var Provider definition.PublisherProvider = PublisherProvider{}

pkg/plugin/implementation/publisher/cmd/plugin_test.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"context"
+	"testing"
+
+	"github.com/beckn/beckn-onix/pkg/plugin/definition"
+)
+
+// MockPublisher is a mock implementation of the definition.Publisher interface for testing.
+type MockPublisher struct{}
+
+func (m *MockPublisher) Publish(ctx context.Context, msg []byte) error {
+	return nil
+}
+
+func (m *MockPublisher) Close() error {
+	return nil
+}
+
+// TestValidateConfig tests the validateConfig function.
+func TestValidateConfig(t *testing.T) {
+	tests := []struct {
+		name    string
+		config  map[string]string
+		wantErr bool
+	}{
+		{"Valid config", map[string]string{"project": "test-project", "topic": "test-topic"}, false},
+		{"Nil config", nil, true},
+		{"Missing project", map[string]string{"topic": "test-topic"}, true},
+		{"Missing topic", map[string]string{"project": "test-project"}, true},
+		{"Empty project", map[string]string{"project": "", "topic": "test-topic"}, true},
+		{"Empty topic", map[string]string{"project": "test-project", "topic": ""}, true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := validateConfig(tt.config)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("validateConfig() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+// TestPublisherProviderNew tests the New method of PublisherProvider.
+func TestPublisherProviderNew(t *testing.T) {
+	tests := []struct {
+		name    string
+		ctx     context.Context
+		config  map[string]string
+		wantErr bool
+	}{
+		{"Nil context", nil, map[string]string{"project": "test-project", "topic": "test-topic"}, true},
+		{"Invalid config", context.Background(), map[string]string{"project": "", "topic": "test-topic"}, true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			provider := PublisherProvider{}
+			_, err := provider.New(tt.ctx, tt.config)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("PublisherProvider.New() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+// TestProviderImplementation verifies that the Provider is correctly initialized.
+func TestProviderImplementation(t *testing.T) {
+	if _, ok := interface{}(Provider).(definition.PublisherProvider); !ok {
+		t.Errorf("Provider does not implement definition.PublisherProvider")
+	}
+}