// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-present Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public Licensee as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public Licensee for more details.
//
// You should have received a copy of the GNU Affero General Public Licensee
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package integrations

import (
	"net/http"
	"net/http/httptest"
	"testing"

	"code.vikunja.io/api/pkg/db"
	"code.vikunja.io/api/pkg/modules/auth"
	"code.vikunja.io/api/pkg/routes"
	"code.vikunja.io/api/pkg/user"

	"github.com/labstack/echo/v4"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestAPIToken(t *testing.T) {
	t.Run("valid token", func(t *testing.T) {
		e, err := setupTestEnv()
		require.NoError(t, err)
		req := httptest.NewRequest(http.MethodGet, "/api/v1/tasks/all", nil)
		res := httptest.NewRecorder()
		c := e.NewContext(req, res)
		h := routes.SetupTokenMiddleware()(func(c echo.Context) error {
			u, err := auth.GetAuthFromClaims(c)
			if err != nil {
				return c.String(http.StatusInternalServerError, err.Error())
			}

			return c.JSON(http.StatusOK, u)
		})

		req.Header.Set(echo.HeaderAuthorization, "Bearer tk_2eef46f40ebab3304919ab2e7e39993f75f29d2e") // Token 1
		require.NoError(t, h(c))
		// check if the request handlers "see" the request as if it came directly from that user
		assert.Contains(t, res.Body.String(), `"username":"user1"`)
	})
	t.Run("invalid token", func(t *testing.T) {
		e, err := setupTestEnv()
		require.NoError(t, err)
		req := httptest.NewRequest(http.MethodGet, "/api/v1/tasks/all", nil)
		res := httptest.NewRecorder()
		c := e.NewContext(req, res)
		h := routes.SetupTokenMiddleware()(func(c echo.Context) error {
			return c.String(http.StatusOK, "test")
		})

		req.Header.Set(echo.HeaderAuthorization, "Bearer tk_loremipsumdolorsitamet")
		require.Error(t, h(c))
	})
	t.Run("expired token", func(t *testing.T) {
		e, err := setupTestEnv()
		require.NoError(t, err)
		req := httptest.NewRequest(http.MethodGet, "/api/v1/tasks/all", nil)
		res := httptest.NewRecorder()
		c := e.NewContext(req, res)
		h := routes.SetupTokenMiddleware()(func(c echo.Context) error {
			return c.String(http.StatusOK, "test")
		})

		req.Header.Set(echo.HeaderAuthorization, "Bearer tk_a5e6f92ddbad68f49ee2c63e52174db0235008c8") // Token 2
		require.Error(t, h(c))
	})
	t.Run("valid token, invalid scope", func(t *testing.T) {
		e, err := setupTestEnv()
		require.NoError(t, err)
		req := httptest.NewRequest(http.MethodGet, "/api/v1/projects", nil)
		res := httptest.NewRecorder()
		c := e.NewContext(req, res)
		h := routes.SetupTokenMiddleware()(func(c echo.Context) error {
			return c.String(http.StatusOK, "test")
		})

		req.Header.Set(echo.HeaderAuthorization, "Bearer tk_2eef46f40ebab3304919ab2e7e39993f75f29d2e")
		require.Error(t, h(c))
	})
	t.Run("jwt", func(t *testing.T) {
		e, err := setupTestEnv()
		require.NoError(t, err)
		req := httptest.NewRequest(http.MethodGet, "/api/v1/tasks/all", nil)
		res := httptest.NewRecorder()
		c := e.NewContext(req, res)
		h := routes.SetupTokenMiddleware()(func(c echo.Context) error {
			return c.String(http.StatusOK, "test")
		})

		s := db.NewSession()
		defer s.Close()
		u, err := user.GetUserByID(s, 1)
		require.NoError(t, err)
		jwt, err := auth.NewUserJWTAuthtoken(u, false)
		require.NoError(t, err)

		req.Header.Set(echo.HeaderAuthorization, "Bearer "+jwt)
		require.NoError(t, h(c))
	})
}