package callstest

import (
	"encoding/base64"
	"encoding/json"
	"strings"
	"testing"
)

// relayVectorForTest is the base64 CARLOS_RELAY value for one region,
// built from relay's own platform vector key and username suffix
// (internal/calls/relay/relay_test.go) so a leak of either into a
// rendered page would be unmistakable.
func relayVectorForTest(t *testing.T) string {
	t.Helper()
	const vectorKey = "uMhwW4P/9O5dQUIs91t2CCHGhwJbeiM0xQMQ2G0CJLU="
	regions := []map[string]any{{
		"region":          "eu-west-1",
		"urls":            []string{"stun:relay.eu-west-1.oncarlos.com:3478"},
		"key":             vectorKey,
		"username_suffix": "abc:meet:0123456789abcdef:k1",
	}}
	b, err := json.Marshal(regions)
	if err != nil {
		t.Fatal(err)
	}
	return base64.StdEncoding.EncodeToString(b)
}

// TestRoomPageShowsFloorWithNoRelay: holding_test.go's
// TestHoldingPageShowsTitleStandingAndFloor covers /join; room.html
// renders the identical sentence and nothing proved it — there was no
// room-page floor test before this one.
func TestRoomPageShowsFloorWithNoRelay(t *testing.T) {
	x, sqid, _ := memberWithMeeting(t)
	c := x.browser(t)
	c.signIn("paul@example.com")
	body := c.get("/m/" + sqid).Body.String()
	if !strings.Contains(body, "Calls outside your network may not connect yet.") {
		t.Fatalf("room page lacks the floor sentence with no relay configured:\n%s", body)
	}
	// The same fact room.js reads, and the only thing that chooses
	// between §5.5's two failed-tile sentences. Empty here.
	if !strings.Contains(body, `data-relay=""`) {
		t.Fatalf("room page does not render an empty data-relay with no relay configured:\n%s", body)
	}
}

// TestSetRelayHidesTheFloorSentenceOnBothPages: the floor sentence,
// present on both the holding and room pages with no relay, must
// disappear from both once TestHandle.SetRelay configures one — the
// "relay configured ⇒ sentence absent" direction that hardcoding Floor
// to true would still have passed.
func TestSetRelayHidesTheFloorSentenceOnBothPages(t *testing.T) {
	x, sqid, _ := memberWithMeeting(t)
	if err := x.ctl.SetRelay(relayVectorForTest(t)); err != nil {
		t.Fatal(err)
	}
	c := x.browser(t)
	c.signIn("paul@example.com")
	if body := c.get("/m/" + sqid + "/join").Body.String(); strings.Contains(body, "Calls outside your network may not connect yet.") {
		t.Fatalf("holding page still shows the floor sentence with a relay configured:\n%s", body)
	}
	body := c.get("/m/" + sqid).Body.String()
	if strings.Contains(body, "Calls outside your network may not connect yet.") {
		t.Fatalf("room page still shows the floor sentence with a relay configured:\n%s", body)
	}
	// §5.5's other half: room.js says "even through the relay" on a
	// failed tile only when the server states there is one.
	if !strings.Contains(body, `data-relay="1"`) {
		t.Fatalf("room page does not render data-relay=\"1\" with a relay configured:\n%s", body)
	}
}