package middleware

import (
	"net/http"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"github.com/xlgmokha/x/pkg/test"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/app/cfg"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/app/db"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/app/domain"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/pkg/oidc"
	"gitlab.com/gitlab-org/software-supply-chain-security/authorization/sparkled/pkg/pls"
)

func TestUser(t *testing.T) {
	repository := db.NewRepository[*domain.User]()
	middleware := User(repository)

	knownUser := &domain.User{ID: domain.ID(pls.GenerateULID())}
	require.NoError(t, repository.Save(knownUser))

	t.Run("when ID Token is provided", func(t *testing.T) {
		t.Run("when user is known", func(t *testing.T) {
			server := middleware(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				user := cfg.CurrentUser.From(r.Context())
				require.NotNil(t, user)
				assert.Equal(t, knownUser.ID, user.ID)

				w.WriteHeader(http.StatusTeapot)
			}))

			ctx := cfg.IDToken.With(t.Context(), &oidc.IDToken{Subject: knownUser.ID.String()})

			r, w := test.RequestResponse("GET", "/example", test.WithContext(ctx))
			server.ServeHTTP(w, r)

			assert.Equal(t, http.StatusTeapot, w.Code)
		})

		t.Run("when user is unknown", func(t *testing.T) {
			unknownID := pls.GenerateULID()

			server := middleware(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				user := cfg.CurrentUser.From(r.Context())
				require.NotNil(t, user)
				assert.Equal(t, domain.ID(unknownID), user.ID)

				w.WriteHeader(http.StatusTeapot)
			}))

			ctx := cfg.IDToken.With(t.Context(), &oidc.IDToken{Subject: unknownID})

			r, w := test.RequestResponse("GET", "/example", test.WithContext(ctx))
			server.ServeHTTP(w, r)

			assert.Equal(t, http.StatusTeapot, w.Code)
			require.NotNil(t, repository.Find(domain.ID(unknownID)))
		})
	})

	t.Run("when ID Token is not provided", func(t *testing.T) {
		server := middleware(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			user := cfg.CurrentUser.From(r.Context())
			require.Nil(t, user)

			w.WriteHeader(http.StatusTeapot)
		}))

		r, w := test.RequestResponse("GET", "/example")
		server.ServeHTTP(w, r)

		assert.Equal(t, http.StatusTeapot, w.Code)
	})
}