fix linting (#4)

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

store/noop.go

@@ -2,45 +2,58 @@ package store
 
 import "context"
 
-type NoopStore struct {
+type noopStore struct {
 	opts Options
 }
 
-func (n *NoopStore) Init(opts ...Option) error {
+func NewStore(opts ...Option) Store {
+	return &noopStore{opts: NewOptions(opts...)}
+}
+
+// Init initialize store
+func (n *noopStore) Init(opts ...Option) error {
 	for _, o := range opts {
 		o(&n.opts)
 	}
 	return nil
 }
 
-func (n *NoopStore) Options() Options {
+// Options returns Options struct
+func (n *noopStore) Options() Options {
 	return n.opts
 }
 
-func (n *NoopStore) String() string {
+// String returns string representation
+func (n *noopStore) String() string {
 	return "noop"
 }
 
-func (n *NoopStore) Read(ctx context.Context, key string, opts ...ReadOption) ([]*Record, error) {
+// Read reads store value by key
+func (n *noopStore) Read(ctx context.Context, key string, opts ...ReadOption) ([]*Record, error) {
 	return []*Record{}, nil
 }
 
-func (n *NoopStore) Write(ctx context.Context, r *Record, opts ...WriteOption) error {
+// Write writes store record
+func (n *noopStore) Write(ctx context.Context, r *Record, opts ...WriteOption) error {
 	return nil
 }
 
-func (n *NoopStore) Delete(ctx context.Context, key string, opts ...DeleteOption) error {
+// Delete removes store value by key
+func (n *noopStore) Delete(ctx context.Context, key string, opts ...DeleteOption) error {
 	return nil
 }
 
-func (n *NoopStore) List(ctx context.Context, opts ...ListOption) ([]string, error) {
+// List lists store
+func (n *noopStore) List(ctx context.Context, opts ...ListOption) ([]string, error) {
 	return []string{}, nil
 }
 
-func (n *NoopStore) Connect(ctx context.Context) error {
+// Connect connects to store
+func (n *noopStore) Connect(ctx context.Context) error {
 	return nil
 }
 
-func (n *NoopStore) Disconnect(ctx context.Context) error {
+// Disconnect disconnects from store
+func (n *noopStore) Disconnect(ctx context.Context) error {
 	return nil
 }

store/store.go

@@ -10,14 +10,16 @@ import (
 
 var (
 	// ErrNotFound is returned when a key doesn't exist
-	ErrNotFound        = errors.New("not found")
-	DefaultStore Store = &NoopStore{opts: NewOptions()}
+	ErrNotFound = errors.New("not found")
+	// DefaultStore is the global default store
+	DefaultStore Store = NewStore()
 )
 
 // Store is a data storage interface
 type Store interface {
 	// Init initialises the store. It must perform any required setup on the backing storage implementation and check that it is ready for use, returning any errors.
 	Init(opts ...Option) error
+	// Connect is used when store needs to be connected
 	Connect(ctx context.Context) error
 	// Options allows you to view the current options.
 	Options() Options