feat(GODT-2801): Identity Service

Identity Service contains all the information related to user state,
addresses and keys.

This patch also introduces the `State` type which can be used by other
services to maintain their own copy of this state to avoid lock
contention.

Finally, there are currently no external facing methods via a CPC
interface. Those will added as needed once the refactoring of the
architecture is complete.

internal/services/useridentity/mocks/mocks.go

@@ -0,0 +1,66 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: github.com/ProtonMail/proton-bridge/v3/internal/services/useridentity (interfaces: IdentityProvider)
+
+// Package mocks is a generated GoMock package.
+package mocks
+
+import (
+	context "context"
+	reflect "reflect"
+
+	proton "github.com/ProtonMail/go-proton-api"
+	gomock "github.com/golang/mock/gomock"
+)
+
+// MockIdentityProvider is a mock of IdentityProvider interface.
+type MockIdentityProvider struct {
+	ctrl     *gomock.Controller
+	recorder *MockIdentityProviderMockRecorder
+}
+
+// MockIdentityProviderMockRecorder is the mock recorder for MockIdentityProvider.
+type MockIdentityProviderMockRecorder struct {
+	mock *MockIdentityProvider
+}
+
+// NewMockIdentityProvider creates a new mock instance.
+func NewMockIdentityProvider(ctrl *gomock.Controller) *MockIdentityProvider {
+	mock := &MockIdentityProvider{ctrl: ctrl}
+	mock.recorder = &MockIdentityProviderMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockIdentityProvider) EXPECT() *MockIdentityProviderMockRecorder {
+	return m.recorder
+}
+
+// GetAddresses mocks base method.
+func (m *MockIdentityProvider) GetAddresses(arg0 context.Context) ([]proton.Address, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetAddresses", arg0)
+	ret0, _ := ret[0].([]proton.Address)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetAddresses indicates an expected call of GetAddresses.
+func (mr *MockIdentityProviderMockRecorder) GetAddresses(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetAddresses", reflect.TypeOf((*MockIdentityProvider)(nil).GetAddresses), arg0)
+}
+
+// GetUser mocks base method.
+func (m *MockIdentityProvider) GetUser(arg0 context.Context) (proton.User, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetUser", arg0)
+	ret0, _ := ret[0].(proton.User)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetUser indicates an expected call of GetUser.
+func (mr *MockIdentityProviderMockRecorder) GetUser(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetUser", reflect.TypeOf((*MockIdentityProvider)(nil).GetUser), arg0)
+}