diff --git a/internal/app/datastore.go b/internal/app/datastore.go
index 1c9bfac..06d3bfe 100644
--- a/internal/app/datastore.go
+++ b/internal/app/datastore.go
@@ -1,5 +1,7 @@
 package app
 
+//go:generate mockgen -destination=../pkg/mocks/mock_app_datastore.go -package=mocks git.haefelfinger.net/piwigo/PiwigoDirectoryUploader/internal/app ImageMetadataProvider
+
 import (
 	"database/sql"
 	"errors"
diff --git a/internal/pkg/mocks/mock_app_datastore.go b/internal/pkg/mocks/mock_app_datastore.go
new file mode 100644
index 0000000..593dbb6
--- /dev/null
+++ b/internal/pkg/mocks/mock_app_datastore.go
@@ -0,0 +1,92 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: git.haefelfinger.net/piwigo/PiwigoDirectoryUploader/internal/app (interfaces: ImageMetadataProvider)
+
+// Package mocks is a generated GoMock package.
+package mocks
+
+import (
+	app "git.haefelfinger.net/piwigo/PiwigoDirectoryUploader/internal/app"
+	gomock "github.com/golang/mock/gomock"
+	reflect "reflect"
+)
+
+// MockImageMetadataProvider is a mock of ImageMetadataProvider interface
+type MockImageMetadataProvider struct {
+	ctrl     *gomock.Controller
+	recorder *MockImageMetadataProviderMockRecorder
+}
+
+// MockImageMetadataProviderMockRecorder is the mock recorder for MockImageMetadataProvider
+type MockImageMetadataProviderMockRecorder struct {
+	mock *MockImageMetadataProvider
+}
+
+// NewMockImageMetadataProvider creates a new mock instance
+func NewMockImageMetadataProvider(ctrl *gomock.Controller) *MockImageMetadataProvider {
+	mock := &MockImageMetadataProvider{ctrl: ctrl}
+	mock.recorder = &MockImageMetadataProviderMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockImageMetadataProvider) EXPECT() *MockImageMetadataProviderMockRecorder {
+	return m.recorder
+}
+
+// ImageMetadata mocks base method
+func (m *MockImageMetadataProvider) ImageMetadata(arg0 string) (app.ImageMetaData, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ImageMetadata", arg0)
+	ret0, _ := ret[0].(app.ImageMetaData)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// ImageMetadata indicates an expected call of ImageMetadata
+func (mr *MockImageMetadataProviderMockRecorder) ImageMetadata(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ImageMetadata", reflect.TypeOf((*MockImageMetadataProvider)(nil).ImageMetadata), arg0)
+}
+
+// ImageMetadataToUpload mocks base method
+func (m *MockImageMetadataProvider) ImageMetadataToUpload() ([]app.ImageMetaData, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ImageMetadataToUpload")
+	ret0, _ := ret[0].([]app.ImageMetaData)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// ImageMetadataToUpload indicates an expected call of ImageMetadataToUpload
+func (mr *MockImageMetadataProviderMockRecorder) ImageMetadataToUpload() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ImageMetadataToUpload", reflect.TypeOf((*MockImageMetadataProvider)(nil).ImageMetadataToUpload))
+}
+
+// SaveImageMetadata mocks base method
+func (m *MockImageMetadataProvider) SaveImageMetadata(arg0 app.ImageMetaData) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "SaveImageMetadata", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// SaveImageMetadata indicates an expected call of SaveImageMetadata
+func (mr *MockImageMetadataProviderMockRecorder) SaveImageMetadata(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SaveImageMetadata", reflect.TypeOf((*MockImageMetadataProvider)(nil).SaveImageMetadata), arg0)
+}
+
+// SavePiwigoIdAndUpdateUploadFlag mocks base method
+func (m *MockImageMetadataProvider) SavePiwigoIdAndUpdateUploadFlag(arg0 string, arg1 int) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "SavePiwigoIdAndUpdateUploadFlag", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// SavePiwigoIdAndUpdateUploadFlag indicates an expected call of SavePiwigoIdAndUpdateUploadFlag
+func (mr *MockImageMetadataProviderMockRecorder) SavePiwigoIdAndUpdateUploadFlag(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SavePiwigoIdAndUpdateUploadFlag", reflect.TypeOf((*MockImageMetadataProvider)(nil).SavePiwigoIdAndUpdateUploadFlag), arg0, arg1)
+}