package auth

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

func TestRequireAuthRejectsMissingToken(t *testing.T) {
	env := newTestJWTEnv(t)
	validator, err := NewValidator(env.issuer, env.jwksURL, WithNow(func() time.Time {
		return env.now
	}), WithHTTPClient(env.client))
	if err != nil {
		t.Fatalf("NewValidator() error = %v", err)
	}

	middleware := NewMiddleware(validator)
	handler := middleware.RequireAuth(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusNoContent)
	}))

	req := httptest.NewRequest(http.MethodGet, "/me", nil)
	rec := httptest.NewRecorder()

	handler.ServeHTTP(rec, req)

	if rec.Code != http.StatusUnauthorized {
		t.Fatalf("status = %d, want %d", rec.Code, http.StatusUnauthorized)
	}
}

func TestRequireAuthAcceptsValidToken(t *testing.T) {
	env := newTestJWTEnv(t)
	validator, err := NewValidator(env.issuer, env.jwksURL, WithNow(func() time.Time {
		return env.now
	}), WithHTTPClient(env.client))
	if err != nil {
		t.Fatalf("NewValidator() error = %v", err)
	}

	middleware := NewMiddleware(validator)
	handler := middleware.RequireAuth(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		principal, ok := PrincipalFromRequest(r)
		if !ok {
			t.Fatal("principal missing from request")
		}
		if principal.Subject != testSubject {
			t.Fatalf("principal.Subject = %q, want %q", principal.Subject, testSubject)
		}
		if principal.Email != "user@example.test" {
			t.Fatalf("principal.Email = %q", principal.Email)
		}
		w.WriteHeader(http.StatusNoContent)
	}))

	req := httptest.NewRequest(http.MethodGet, "/me", nil)
	req.Header.Set("Authorization", "Bearer "+env.token(t, tokenOptions{}))
	rec := httptest.NewRecorder()

	handler.ServeHTTP(rec, req)

	if rec.Code != http.StatusNoContent {
		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNoContent)
	}
}