package auth

import (
	"testing"

	"github.com/golang/mock/gomock"
	"github.com/mattermost/focalboard/server/model"
	"github.com/mattermost/focalboard/server/services/config"
	"github.com/mattermost/focalboard/server/services/permissions/localpermissions"
	mockpermissions "github.com/mattermost/focalboard/server/services/permissions/mocks"
	"github.com/mattermost/focalboard/server/services/store/mockstore"
	"github.com/mattermost/focalboard/server/utils"
	"github.com/pkg/errors"
	"github.com/stretchr/testify/require"

	"github.com/mattermost/mattermost-server/v6/shared/mlog"
)

type TestHelper struct {
	Auth    *Auth
	Session model.Session
	Store   *mockstore.MockStore
}

var mockSession = &model.Session{
	ID:       utils.NewID(utils.IDTypeSession),
	Token:    "goodToken",
	UserID:   "12345",
	CreateAt: utils.GetMillis() - utils.SecondsToMillis(2000),
	UpdateAt: utils.GetMillis() - utils.SecondsToMillis(2000),
}

func setupTestHelper(t *testing.T) *TestHelper {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()
	ctrlPermissions := gomock.NewController(t)
	defer ctrlPermissions.Finish()
	cfg := config.Configuration{}
	mockStore := mockstore.NewMockStore(ctrl)
	mockPermissions := mockpermissions.NewMockStore(ctrlPermissions)
	logger, err := mlog.NewLogger()
	require.NoError(t, err)
	newAuth := New(&cfg, mockStore, localpermissions.New(mockPermissions, logger))

	// called during default template setup for every test
	mockStore.EXPECT().GetTemplateBoards("0", "").AnyTimes()
	mockStore.EXPECT().RemoveDefaultTemplates(gomock.Any()).AnyTimes()
	mockStore.EXPECT().InsertBlock(gomock.Any(), gomock.Any()).AnyTimes()

	return &TestHelper{
		Auth:    newAuth,
		Session: *mockSession,
		Store:   mockStore,
	}
}

func TestGetSession(t *testing.T) {
	th := setupTestHelper(t)

	testcases := []struct {
		title       string
		token       string
		refreshTime int64
		isError     bool
	}{
		{"fail, no token", "", 0, true},
		{"fail, invalid username", "badToken", 0, true},
		{"success, good token", "goodToken", 1000, false},
	}

	th.Store.EXPECT().GetSession("badToken", gomock.Any()).Return(nil, errors.New("Invalid Token"))
	th.Store.EXPECT().GetSession("goodToken", gomock.Any()).Return(mockSession, nil)
	th.Store.EXPECT().RefreshSession(gomock.Any()).Return(nil)

	for _, test := range testcases {
		t.Run(test.title, func(t *testing.T) {
			if test.refreshTime > 0 {
				th.Auth.config.SessionRefreshTime = test.refreshTime
			}

			session, err := th.Auth.GetSession(test.token)
			if test.isError {
				require.Error(t, err)
			} else {
				require.NoError(t, err)
				require.NotNil(t, session)
			}
		})
	}
}

func TestIsValidReadToken(t *testing.T) {
	// ToDo: reimplement

	// th := setupTestHelper(t)

	// validBlockID := "testBlockID"
	// mockContainer := store.Container{
	// 	TeamID: "testTeamID",
	// }
	// validReadToken := "testReadToken"
	// mockSharing := model.Sharing{
	// 	ID:      "testRootID",
	// 	Enabled: true,
	// 	Token:   validReadToken,
	// }

	// testcases := []struct {
	// 	title     string
	// 	container store.Container
	// 	blockID   string
	// 	readToken string
	// 	isError   bool
	// 	isSuccess bool
	// }{
	// 	{"fail, error GetRootID", mockContainer, "badBlock", "", true, false},
	// 	{"fail, rootID not found", mockContainer, "goodBlockID", "", false, false},
	// 	{"fail, sharing throws error", mockContainer, "goodBlockID2", "", true, false},
	// 	{"fail, bad readToken", mockContainer, validBlockID, "invalidReadToken", false, false},
	// 	{"success", mockContainer, validBlockID, validReadToken, false, true},
	// }

	// th.Store.EXPECT().GetRootID(gomock.Eq(mockContainer), "badBlock").Return("", errors.New("invalid block"))
	// th.Store.EXPECT().GetRootID(gomock.Eq(mockContainer), "goodBlockID").Return("rootNotFound", nil)
	// th.Store.EXPECT().GetRootID(gomock.Eq(mockContainer), "goodBlockID2").Return("rootError", nil)
	// th.Store.EXPECT().GetRootID(gomock.Eq(mockContainer), validBlockID).Return("testRootID", nil).Times(2)
	// th.Store.EXPECT().GetSharing(gomock.Eq(mockContainer), "rootNotFound").Return(nil, sql.ErrNoRows)
	// th.Store.EXPECT().GetSharing(gomock.Eq(mockContainer), "rootError").Return(nil, errors.New("another error"))
	// th.Store.EXPECT().GetSharing(gomock.Eq(mockContainer), "testRootID").Return(&mockSharing, nil).Times(2)

	// for _, test := range testcases {
	// 	t.Run(test.title, func(t *testing.T) {
	// 		success, err := th.Auth.IsValidReadToken(test.container, test.blockID, test.readToken)
	// 		if test.isError {
	// 			require.Error(t, err)
	// 		} else {
	// 			require.NoError(t, err)
	// 		}
	// 		if test.isSuccess {
	// 			require.True(t, success)
	// 		} else {
	// 			require.False(t, success)
	// 		}
	// 	})
	// }
}