package test

import (
	"RenewCMS/api/pkg/apperr"
	"net/http"
	"net/http/httptest"
	"testing"
)

const publicReadBudget = 120

func (e *locPublicEnv) getFrom(remoteAddr string, path string) *httptest.ResponseRecorder {
	req := httptest.NewRequest(http.MethodGet, path, nil)
	req.RemoteAddr = remoteAddr
	rec := httptest.NewRecorder()
	e.router.ServeHTTP(rec, req)
	return rec
}

func TestPublicReadRateLimit(t *testing.T) {
	t.Run("The public article routes and the sitemap share one budget per client", func(t *testing.T) {
		e := newLocPublicEnv(t)
		client := "198.51.100.7:4000"
		for index := 0; index < publicReadBudget; index++ {
			path := locFrBase
			if index%2 == 0 {
				path = "/v1/site/journal/sitemap"
			}
			if rec := e.getFrom(client, path); rec.Code != http.StatusOK {
				t.Fatalf("request %d: %d %s", index, rec.Code, rec.Body.String())
			}
		}

		for _, path := range []string{locFrBase, "/v1/site/journal/sitemap", "/v1/public/site/journal/story/5"} {
			rec := e.getFrom(client, path)
			if rec.Code != http.StatusTooManyRequests || rec.Body.String() != apperr.TooManyRequestsErrorMessage+"\n" || rec.Header().Get("Retry-After") == "" {
				t.Errorf("%s: %d %q", path, rec.Code, rec.Body.String())
			}
		}
		if rec := e.getFrom("198.51.100.8:4000", locFrBase); rec.Code != http.StatusOK {
			t.Errorf("another client is limited: %d", rec.Code)
		}
	})
}