package coderd_test

import (
	"context"
	"fmt"
	"net/http"
	"testing"

	"github.com/google/uuid"
	"github.com/stretchr/testify/require"

	"github.com/coder/coder/coderd/coderdtest"
	"github.com/coder/coder/coderd/httpmw"
	"github.com/coder/coder/codersdk"
)

func TestFirstUser(t *testing.T) {
	t.Parallel()
	t.Run("BadRequest", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_, err := client.CreateFirstUser(context.Background(), codersdk.CreateFirstUserRequest{})
		require.Error(t, err)
	})

	t.Run("AlreadyExists", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_ = coderdtest.CreateFirstUser(t, client)
		_, err := client.CreateFirstUser(context.Background(), codersdk.CreateFirstUserRequest{
			Email:            "some@email.com",
			Username:         "exampleuser",
			Password:         "password",
			OrganizationName: "someorg",
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusConflict, apiErr.StatusCode())
	})

	t.Run("Create", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_ = coderdtest.CreateFirstUser(t, client)
	})
}

func TestPostLogin(t *testing.T) {
	t.Parallel()
	t.Run("InvalidUser", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_, err := client.LoginWithPassword(context.Background(), codersdk.LoginWithPasswordRequest{
			Email:    "my@email.org",
			Password: "password",
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusUnauthorized, apiErr.StatusCode())
	})

	t.Run("BadPassword", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		req := codersdk.CreateFirstUserRequest{
			Email:            "testuser@coder.com",
			Username:         "testuser",
			Password:         "testpass",
			OrganizationName: "testorg",
		}
		_, err := client.CreateFirstUser(context.Background(), req)
		require.NoError(t, err)
		_, err = client.LoginWithPassword(context.Background(), codersdk.LoginWithPasswordRequest{
			Email:    req.Email,
			Password: "badpass",
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusUnauthorized, apiErr.StatusCode())
	})

	t.Run("Success", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		req := codersdk.CreateFirstUserRequest{
			Email:            "testuser@coder.com",
			Username:         "testuser",
			Password:         "testpass",
			OrganizationName: "testorg",
		}
		_, err := client.CreateFirstUser(context.Background(), req)
		require.NoError(t, err)
		_, err = client.LoginWithPassword(context.Background(), codersdk.LoginWithPasswordRequest{
			Email:    req.Email,
			Password: req.Password,
		})
		require.NoError(t, err)
	})
}

func TestPostLogout(t *testing.T) {
	t.Parallel()

	t.Run("ClearCookie", func(t *testing.T) {
		t.Parallel()

		client := coderdtest.New(t, nil)
		fullURL, err := client.URL.Parse("/api/v2/users/logout")
		require.NoError(t, err, "Server URL should parse successfully")

		req, err := http.NewRequestWithContext(context.Background(), http.MethodPost, fullURL.String(), nil)
		require.NoError(t, err, "/logout request construction should succeed")

		httpClient := &http.Client{}

		response, err := httpClient.Do(req)
		require.NoError(t, err, "/logout request should succeed")
		response.Body.Close()

		cookies := response.Cookies()
		require.Len(t, cookies, 1, "Exactly one cookie should be returned")

		require.Equal(t, cookies[0].Name, httpmw.AuthCookie, "Cookie should be the auth cookie")
		require.Equal(t, cookies[0].MaxAge, -1, "Cookie should be set to delete")
	})
}

func TestPostUsers(t *testing.T) {
	t.Parallel()
	t.Run("NoAuth", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_, err := client.CreateUser(context.Background(), codersdk.CreateUserRequest{})
		require.Error(t, err)
	})

	t.Run("Conflicting", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		me, err := client.User(context.Background(), codersdk.Me)
		require.NoError(t, err)
		_, err = client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			Email:          me.Email,
			Username:       me.Username,
			Password:       "password",
			OrganizationID: uuid.New(),
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusConflict, apiErr.StatusCode())
	})

	t.Run("OrganizationNotFound", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		_, err := client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			OrganizationID: uuid.New(),
			Email:          "another@user.org",
			Username:       "someone-else",
			Password:       "testing",
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusNotFound, apiErr.StatusCode())
	})

	t.Run("OrganizationNoAccess", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		first := coderdtest.CreateFirstUser(t, client)
		other := coderdtest.CreateAnotherUser(t, client, first.OrganizationID)
		org, err := other.CreateOrganization(context.Background(), codersdk.Me, codersdk.CreateOrganizationRequest{
			Name: "another",
		})
		require.NoError(t, err)

		_, err = client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			Email:          "some@domain.com",
			Username:       "anotheruser",
			Password:       "testing",
			OrganizationID: org.ID,
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusUnauthorized, apiErr.StatusCode())
	})

	t.Run("Create", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		user := coderdtest.CreateFirstUser(t, client)
		_, err := client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			OrganizationID: user.OrganizationID,
			Email:          "another@user.org",
			Username:       "someone-else",
			Password:       "testing",
		})
		require.NoError(t, err)
	})
}

func TestUpdateUserProfile(t *testing.T) {
	t.Parallel()
	t.Run("UserNotFound", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		_, err := client.UpdateUserProfile(context.Background(), uuid.New(), codersdk.UpdateUserProfileRequest{
			Username: "newusername",
			Email:    "newemail@coder.com",
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		// Right now, we are raising a BAD request error because we don't support a
		// user accessing other users info
		require.Equal(t, http.StatusBadRequest, apiErr.StatusCode())
	})

	t.Run("ConflictingEmail", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		user := coderdtest.CreateFirstUser(t, client)
		existentUser, _ := client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			Email:          "bruno@coder.com",
			Username:       "bruno",
			Password:       "password",
			OrganizationID: user.OrganizationID,
		})
		_, err := client.UpdateUserProfile(context.Background(), codersdk.Me, codersdk.UpdateUserProfileRequest{
			Username: "newusername",
			Email:    existentUser.Email,
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusConflict, apiErr.StatusCode())
	})

	t.Run("ConflictingUsername", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		user := coderdtest.CreateFirstUser(t, client)
		existentUser, err := client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			Email:          "bruno@coder.com",
			Username:       "bruno",
			Password:       "password",
			OrganizationID: user.OrganizationID,
		})
		require.NoError(t, err)
		_, err = client.UpdateUserProfile(context.Background(), codersdk.Me, codersdk.UpdateUserProfileRequest{
			Username: existentUser.Username,
			Email:    "newemail@coder.com",
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusConflict, apiErr.StatusCode())
	})

	t.Run("UpdateUsernameAndEmail", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		userProfile, err := client.UpdateUserProfile(context.Background(), codersdk.Me, codersdk.UpdateUserProfileRequest{
			Username: "newusername",
			Email:    "newemail@coder.com",
		})
		require.NoError(t, err)
		require.Equal(t, userProfile.Username, "newusername")
		require.Equal(t, userProfile.Email, "newemail@coder.com")
	})

	t.Run("UpdateUsername", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		me, _ := client.User(context.Background(), codersdk.Me)
		userProfile, err := client.UpdateUserProfile(context.Background(), codersdk.Me, codersdk.UpdateUserProfileRequest{
			Username: me.Username,
			Email:    "newemail@coder.com",
		})
		require.NoError(t, err)
		require.Equal(t, userProfile.Username, me.Username)
		require.Equal(t, userProfile.Email, "newemail@coder.com")
	})

	t.Run("KeepUserName", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		me, _ := client.User(context.Background(), codersdk.Me)
		newName := "New Name"
		firstProfile, _ := client.UpdateUserProfile(context.Background(), codersdk.Me, codersdk.UpdateUserProfileRequest{
			Username: me.Username,
			Email:    me.Email,
			Name:     &newName,
		})
		t.Log(firstProfile)
		userProfile, err := client.UpdateUserProfile(context.Background(), codersdk.Me, codersdk.UpdateUserProfileRequest{
			Username: "newusername",
			Email:    "newemail@coder.com",
		})
		require.NoError(t, err)
		require.Equal(t, userProfile.Username, "newusername")
		require.Equal(t, userProfile.Email, "newemail@coder.com")
		require.Equal(t, userProfile.Name, newName)
	})
}

func TestUserByName(t *testing.T) {
	t.Parallel()
	client := coderdtest.New(t, nil)
	_ = coderdtest.CreateFirstUser(t, client)
	_, err := client.User(context.Background(), codersdk.Me)
	require.NoError(t, err)
}

func TestGetUsers(t *testing.T) {
	t.Parallel()
	client := coderdtest.New(t, nil)
	user := coderdtest.CreateFirstUser(t, client)
	client.CreateUser(context.Background(), codersdk.CreateUserRequest{
		Email:          "alice@email.com",
		Username:       "alice",
		Password:       "password",
		OrganizationID: user.OrganizationID,
	})
	// No params is all users
	users, err := client.Users(context.Background(), codersdk.UsersRequest{})
	require.NoError(t, err)
	require.Len(t, users, 2)
}

func TestOrganizationsByUser(t *testing.T) {
	t.Parallel()
	client := coderdtest.New(t, nil)
	_ = coderdtest.CreateFirstUser(t, client)
	orgs, err := client.OrganizationsByUser(context.Background(), codersdk.Me)
	require.NoError(t, err)
	require.NotNil(t, orgs)
	require.Len(t, orgs, 1)
}

func TestOrganizationByUserAndName(t *testing.T) {
	t.Parallel()
	t.Run("NoExist", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		_, err := client.OrganizationByName(context.Background(), codersdk.Me, "nothing")
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusNotFound, apiErr.StatusCode())
	})

	t.Run("NoMember", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		first := coderdtest.CreateFirstUser(t, client)
		other := coderdtest.CreateAnotherUser(t, client, first.OrganizationID)
		org, err := other.CreateOrganization(context.Background(), codersdk.Me, codersdk.CreateOrganizationRequest{
			Name: "another",
		})
		require.NoError(t, err)
		_, err = client.OrganizationByName(context.Background(), codersdk.Me, org.Name)
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusUnauthorized, apiErr.StatusCode())
	})

	t.Run("Valid", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		user := coderdtest.CreateFirstUser(t, client)
		org, err := client.Organization(context.Background(), user.OrganizationID)
		require.NoError(t, err)
		_, err = client.OrganizationByName(context.Background(), codersdk.Me, org.Name)
		require.NoError(t, err)
	})
}

func TestPostOrganizationsByUser(t *testing.T) {
	t.Parallel()
	t.Run("Conflict", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		user := coderdtest.CreateFirstUser(t, client)
		org, err := client.Organization(context.Background(), user.OrganizationID)
		require.NoError(t, err)
		_, err = client.CreateOrganization(context.Background(), codersdk.Me, codersdk.CreateOrganizationRequest{
			Name: org.Name,
		})
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusConflict, apiErr.StatusCode())
	})

	t.Run("Create", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_ = coderdtest.CreateFirstUser(t, client)
		_, err := client.CreateOrganization(context.Background(), codersdk.Me, codersdk.CreateOrganizationRequest{
			Name: "new",
		})
		require.NoError(t, err)
	})
}

func TestPostAPIKey(t *testing.T) {
	t.Parallel()
	t.Run("InvalidUser", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_ = coderdtest.CreateFirstUser(t, client)

		client.SessionToken = ""
		_, err := client.CreateAPIKey(context.Background(), codersdk.Me)
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusUnauthorized, apiErr.StatusCode())
	})

	t.Run("Success", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_ = coderdtest.CreateFirstUser(t, client)
		apiKey, err := client.CreateAPIKey(context.Background(), codersdk.Me)
		require.NotNil(t, apiKey)
		require.GreaterOrEqual(t, len(apiKey.Key), 2)
		require.NoError(t, err)
	})
}

func TestPostWorkspacesByUser(t *testing.T) {
	t.Parallel()
	t.Run("InvalidTemplate", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		_ = coderdtest.CreateFirstUser(t, client)
		_, err := client.CreateWorkspace(context.Background(), codersdk.Me, codersdk.CreateWorkspaceRequest{
			TemplateID: uuid.New(),
			Name:       "workspace",
		})
		require.Error(t, err)
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusBadRequest, apiErr.StatusCode())
	})

	t.Run("NoTemplateAccess", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		first := coderdtest.CreateFirstUser(t, client)

		other := coderdtest.CreateAnotherUser(t, client, first.OrganizationID)
		org, err := other.CreateOrganization(context.Background(), codersdk.Me, codersdk.CreateOrganizationRequest{
			Name: "another",
		})
		require.NoError(t, err)
		version := coderdtest.CreateTemplateVersion(t, other, org.ID, nil)
		template := coderdtest.CreateTemplate(t, other, org.ID, version.ID)

		_, err = client.CreateWorkspace(context.Background(), codersdk.Me, codersdk.CreateWorkspaceRequest{
			TemplateID: template.ID,
			Name:       "workspace",
		})
		require.Error(t, err)
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusUnauthorized, apiErr.StatusCode())
	})

	t.Run("AlreadyExists", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.NewProvisionerDaemon(t, client)
		user := coderdtest.CreateFirstUser(t, client)
		version := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, nil)
		template := coderdtest.CreateTemplate(t, client, user.OrganizationID, version.ID)
		coderdtest.AwaitTemplateVersionJob(t, client, version.ID)
		workspace := coderdtest.CreateWorkspace(t, client, codersdk.Me, template.ID)
		_, err := client.CreateWorkspace(context.Background(), codersdk.Me, codersdk.CreateWorkspaceRequest{
			TemplateID: template.ID,
			Name:       workspace.Name,
		})
		require.Error(t, err)
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusConflict, apiErr.StatusCode())
	})

	t.Run("Create", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.NewProvisionerDaemon(t, client)
		user := coderdtest.CreateFirstUser(t, client)
		version := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, nil)
		template := coderdtest.CreateTemplate(t, client, user.OrganizationID, version.ID)
		coderdtest.AwaitTemplateVersionJob(t, client, version.ID)
		_ = coderdtest.CreateWorkspace(t, client, codersdk.Me, template.ID)
	})
}

func TestWorkspacesByUser(t *testing.T) {
	t.Parallel()
	t.Run("ListEmpty", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		_, err := client.WorkspacesByUser(context.Background(), codersdk.Me)
		require.NoError(t, err)
	})
	t.Run("List", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.NewProvisionerDaemon(t, client)
		user := coderdtest.CreateFirstUser(t, client)
		version := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, nil)
		coderdtest.AwaitTemplateVersionJob(t, client, version.ID)
		template := coderdtest.CreateTemplate(t, client, user.OrganizationID, version.ID)
		_ = coderdtest.CreateWorkspace(t, client, codersdk.Me, template.ID)
		workspaces, err := client.WorkspacesByUser(context.Background(), codersdk.Me)
		require.NoError(t, err)
		require.Len(t, workspaces, 1)
	})
}

func TestWorkspaceByUserAndName(t *testing.T) {
	t.Parallel()
	t.Run("NotFound", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.CreateFirstUser(t, client)
		_, err := client.WorkspaceByName(context.Background(), codersdk.Me, "something")
		var apiErr *codersdk.Error
		require.ErrorAs(t, err, &apiErr)
		require.Equal(t, http.StatusNotFound, apiErr.StatusCode())
	})
	t.Run("Get", func(t *testing.T) {
		t.Parallel()
		client := coderdtest.New(t, nil)
		coderdtest.NewProvisionerDaemon(t, client)
		user := coderdtest.CreateFirstUser(t, client)
		version := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, nil)
		coderdtest.AwaitTemplateVersionJob(t, client, version.ID)
		template := coderdtest.CreateTemplate(t, client, user.OrganizationID, version.ID)
		workspace := coderdtest.CreateWorkspace(t, client, codersdk.Me, template.ID)
		_, err := client.WorkspaceByName(context.Background(), codersdk.Me, workspace.Name)
		require.NoError(t, err)
	})
}

// TestPaginatedUsers creates a list of users, then tries to paginate through
// them using different page sizes.
func TestPaginatedUsers(t *testing.T) {
	t.Parallel()
	ctx := context.Background()
	client := coderdtest.New(t, &coderdtest.Options{APIRateLimit: -1})
	coderdtest.CreateFirstUser(t, client)
	me, err := client.User(context.Background(), codersdk.Me)
	require.NoError(t, err)

	allUsers := make([]codersdk.User, 0)
	allUsers = append(allUsers, me)
	specialUsers := make([]codersdk.User, 0)

	org, err := client.CreateOrganization(ctx, me.ID, codersdk.CreateOrganizationRequest{
		Name: "default",
	})
	require.NoError(t, err)

	// When 100 users exist
	total := 100
	// Create users
	for i := 0; i < total; i++ {
		email := fmt.Sprintf("%d@coder.com", i)
		username := fmt.Sprintf("user%d", i)
		if i%2 == 0 {
			email = fmt.Sprintf("%d@gmail.com", i)
			username = fmt.Sprintf("specialuser%d", i)
		}
		// One side effect of having to use the api vs the db calls directly, is you cannot
		// mock time. Ideally I could pass in mocked times and space these users out.
		//
		// But this also serves as a good test. Postgres has microsecond precision on its timestamps.
		// If 2 users share the same created_at, that could cause an issue if you are strictly paginating via
		// timestamps. The pagination goes by timestamps and uuids.
		newUser, err := client.CreateUser(context.Background(), codersdk.CreateUserRequest{
			Email:          email,
			Username:       username,
			Password:       "password",
			OrganizationID: org.ID,
		})
		require.NoError(t, err)
		allUsers = append(allUsers, newUser)
		if i%2 == 0 {
			specialUsers = append(specialUsers, newUser)
		}
	}

	assertPagination(ctx, t, client, 10, allUsers, nil)
	assertPagination(ctx, t, client, 5, allUsers, nil)
	assertPagination(ctx, t, client, 3, allUsers, nil)
	assertPagination(ctx, t, client, 1, allUsers, nil)

	// Try a search
	gmailSearch := func(request codersdk.UsersRequest) codersdk.UsersRequest {
		request.Search = "gmail"
		return request
	}
	assertPagination(ctx, t, client, 3, specialUsers, gmailSearch)
	assertPagination(ctx, t, client, 7, specialUsers, gmailSearch)

	usernameSearch := func(request codersdk.UsersRequest) codersdk.UsersRequest {
		request.Search = "specialuser"
		return request
	}
	assertPagination(ctx, t, client, 3, specialUsers, usernameSearch)
	assertPagination(ctx, t, client, 1, specialUsers, usernameSearch)
}

// Assert pagination will page through the list of all users using the given
// limit for each page. The 'allUsers' is the expected full list to compare
// against.
func assertPagination(ctx context.Context, t *testing.T, client *codersdk.Client, limit int, allUsers []codersdk.User,
	opt func(request codersdk.UsersRequest) codersdk.UsersRequest) {
	var count int
	if opt == nil {
		opt = func(request codersdk.UsersRequest) codersdk.UsersRequest {
			return request
		}
	}

	// Check the first page
	page, err := client.Users(ctx, opt(codersdk.UsersRequest{
		Limit: limit,
	}))
	require.NoError(t, err, "first page")
	require.Equalf(t, page, allUsers[:limit], "first page, limit=%d", limit)
	count += len(page)

	for {
		if len(page) == 0 {
			break
		}

		afterCursor := page[len(page)-1].ID
		// Assert each page is the next expected page
		// This is using a cursor, and only works if all users created_at
		// is unique.
		page, err = client.Users(ctx, opt(codersdk.UsersRequest{
			Limit:     limit,
			AfterUser: afterCursor,
		}))
		require.NoError(t, err, "next cursor page")

		// Also check page by offset
		offsetPage, err := client.Users(ctx, opt(codersdk.UsersRequest{
			Limit:  limit,
			Offset: count,
		}))
		require.NoError(t, err, "next offset page")

		var expected []codersdk.User
		if count+limit > len(allUsers) {
			expected = allUsers[count:]
		} else {
			expected = allUsers[count : count+limit]
		}
		require.Equalf(t, page, expected, "next users, after=%s, limit=%d", afterCursor, limit)
		require.Equalf(t, offsetPage, expected, "offset users, offset=%d, limit=%d", count, limit)

		// Also check the before
		prevPage, err := client.Users(ctx, opt(codersdk.UsersRequest{
			Offset: count - limit,
			Limit:  limit,
		}))
		require.NoError(t, err, "prev page")
		require.Equal(t, allUsers[count-limit:count], prevPage, "prev users")
		count += len(page)
	}
}