package web

// Group C — the /offsite registry page renders in all three states (S2 Part 3).

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

	"gitea.dooplex.hu/admin/felhom-hub/internal/store"
)

func renderOffsite(t *testing.T, s *Server) string {
	t.Helper()
	rr := httptest.NewRecorder()
	s.handleOffsite(rr, httptest.NewRequest(http.MethodGet, "/offsite", nil))
	if rr.Code != http.StatusOK {
		t.Fatalf("offsite render = %d", rr.Code)
	}
	return rr.Body.String()
}

func TestOffsite_NoEndpoint(t *testing.T) {
	s, _ := newTestServer(t)
	html := renderOffsite(t, s)
	if !strings.Contains(html, "Not configured") {
		t.Errorf("no-endpoint state missing: %s", html[:200])
	}
	if !strings.Contains(html, "No WireGuard peers registered") {
		t.Errorf("empty-peers state missing")
	}
}

func TestOffsite_EndpointAndPeers(t *testing.T) {
	s, st := newTestServer(t)
	if err := st.SetWGEndpoint(&store.WGEndpoint{
		DNSName: "ep0.felhom.eu", WGPort: 443,
		ServerPubkey: "CQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQk=",
		TunnelSubnet: "10.77.0.0/24", PBSTunnelIP: "10.77.0.1",
	}); err != nil {
		t.Fatal(err)
	}
	st.UpsertHost(&store.Host{HostID: "hv1", CustomerID: "c1", APIKey: "k"})
	if _, _, err := st.RegisterWGPeerForHost("hv1", "AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQE="); err != nil {
		t.Fatal(err)
	}
	if _, _, err := st.AddWGPeer("AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgI=", "", "unbound-test"); err != nil {
		t.Fatal(err)
	}

	html := renderOffsite(t, s)
	for _, want := range []string{
		"ep0.felhom.eu:443", // endpoint card
		"10.77.0.0/24",      // subnet
		"10.77.0.1:8007",    // PBS tunnel addr
		"10.77.0.2/32",      // bound peer ip
		"10.77.0.3/32",      // unbound peer ip
		`href="/hosts/hv1"`, // bound peer links to its host
		"unbound-test",      // note column
	} {
		if !strings.Contains(html, want) {
			t.Errorf("offsite page missing %q", want)
		}
	}
	// Unbound peer renders an em-dash host cell, not a broken link.
	if strings.Contains(html, `href="/hosts/"`) {
		t.Error("unbound peer rendered an empty host link")
	}
	// Full pubkey rides the title attribute (truncated display).
	if !strings.Contains(html, `title="AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQE="`) {
		t.Error("full pubkey missing from title attr")
	}
}