package handler

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

func TestDenyLegacyAPIDisabledByDefault(t *testing.T) {
	t.Setenv(legacyAPIEnvVar, "")
	h := &Handler{Logger: newTestLogger()}
	rr := httptest.NewRecorder()

	denied := h.denyLegacyAPI(rr, "/api/event/vm/create")
	if !denied {
		t.Fatal("expected legacy API to be denied by default")
	}
	if rr.Code != http.StatusGone {
		t.Fatalf("expected %d, got %d", http.StatusGone, rr.Code)
	}
	if !strings.Contains(rr.Body.String(), "deprecated") {
		t.Fatalf("unexpected response body: %s", rr.Body.String())
	}
}

func TestDenyLegacyAPIEnabledViaEnv(t *testing.T) {
	t.Setenv(legacyAPIEnvVar, "1")
	h := &Handler{Logger: newTestLogger()}
	rr := httptest.NewRecorder()

	denied := h.denyLegacyAPI(rr, "/api/event/vm/create")
	if denied {
		t.Fatal("expected legacy API to be allowed when env var is set")
	}
	if rr.Body.Len() != 0 {
		t.Fatalf("expected no response body write, got: %s", rr.Body.String())
	}
}

func TestVmCreateEventHonorsLegacyGate(t *testing.T) {
	h := &Handler{Logger: newTestLogger()}

	t.Run("disabled", func(t *testing.T) {
		t.Setenv(legacyAPIEnvVar, "")
		req := httptest.NewRequest(http.MethodPost, "/api/event/vm/create", strings.NewReader("{invalid"))
		rr := httptest.NewRecorder()
		h.VmCreateEvent(rr, req)
		if rr.Code != http.StatusGone {
			t.Fatalf("expected %d, got %d", http.StatusGone, rr.Code)
		}
	})

	t.Run("enabled", func(t *testing.T) {
		t.Setenv(legacyAPIEnvVar, "1")
		req := httptest.NewRequest(http.MethodPost, "/api/event/vm/create", strings.NewReader("{invalid"))
		rr := httptest.NewRecorder()
		h.VmCreateEvent(rr, req)
		if rr.Code != http.StatusBadRequest {
			t.Fatalf("expected %d when gate is open, got %d", http.StatusBadRequest, rr.Code)
		}
	})
}