package api

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

func TestWebSocketHandshakeRequiresRFC6455Version(t *testing.T) {
	service := &Service{}
	request := httptest.NewRequest(http.MethodGet, "/v1/events", nil)
	request.Header.Set("Upgrade", "websocket")
	request.Header.Set("Connection", "Upgrade")
	request.Header.Set("Sec-WebSocket-Version", "12")
	request.Header.Set("Sec-WebSocket-Key", "dGhlIHNhbXBsZSBub25jZQ==")
	recorder := httptest.NewRecorder()
	service.controlPlaneEvent(recorder, request)
	if recorder.Code != http.StatusBadRequest {
		t.Fatalf("version 12 status = %d, want 400", recorder.Code)
	}
}

func TestWebSocketMessageBudgetIsBoundedAndResets(t *testing.T) {
	start := time.Unix(1000, 0)
	window := start
	count := 0
	for i := 0; i < webSocketMessageLimit; i++ {
		if !allowWebSocketMessage(start, &window, &count) {
			t.Fatalf("message %d was rejected within the budget", i)
		}
	}
	if allowWebSocketMessage(start, &window, &count) {
		t.Fatal("message over the WebSocket budget was accepted")
	}
	if !allowWebSocketMessage(start.Add(webSocketMessageWindow), &window, &count) {
		t.Fatal("WebSocket message budget did not reset")
	}
}