package slidestest

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

// The sign-in page is the Oficina door (estilo chrome): a card on the
// suite sky with this app's mark and name, its sky layers served signed
// out by estilo's handler rather than shadowed by the app's /static/.
func TestSignInPageIsTheDoor(t *testing.T) {
	h := newApp(t)
	GET := func(p string) *httptest.ResponseRecorder { return get(t, h, p) }
	rec := GET("/signin")
	body := rec.Body.String()
	for _, want := range []string{"estilo-door", "<span>Slides</span>", `name="address"`, " autofocus"} {
		if !strings.Contains(body, want) {
			t.Errorf("sign-in page lacks %q", want)
		}
	}
	if !regexp.MustCompile(`<img estilo-sky-layer="placeholder"[^>]*src="data:image/png;base64,`).MatchString(body) {
		t.Error("sign-in page has no inline sky placeholder")
	}
	layer := regexp.MustCompile(`<img estilo-sky-layer="[a-z]+"[^>]*src="(/static/estilo/sky/v1/[^"]+)"`).FindStringSubmatch(body)
	if layer == nil {
		t.Fatal("sign-in page links no served sky layer")
	}
	if got := GET(layer[1]); got.Code != http.StatusOK || got.Header().Get("Content-Type") != "image/svg+xml" {
		t.Errorf("GET %s signed out: %d %q, want 200 image/svg+xml", layer[1], got.Code, got.Header().Get("Content-Type"))
	}
	if !regexp.MustCompile(`/static/estilo/sky\.[0-9a-f]{16}\.css`).MatchString(body) {
		t.Error("sign-in page does not link sky.css")
	}
}

// TestDoorCopyIsEstilos pins the door's words, which are estilo's, not
// this app's: the submit reads "Sign in" and never "Email me a link"
// (Paul, 2026-10-01), the hub is never named, and the three tab titles
// are "<Page> · Slides".
func TestDoorCopyIsEstilos(t *testing.T) {
	h := newApp(t)
	title := regexp.MustCompile(`<title>([^<]*)</title>`)
	for _, tc := range []struct {
		path, title string
		want        []string
	}{
		{"/signin", "Sign in · Slides", []string{
			"Email address",
			"We’ll email you a link that signs you in. It works once and expires in 15 minutes.",
			">Sign in</button>",
		}},
		{"/signin?sent=1", "Check your email · Slides", []string{
			"Check your email",
			"If that address can sign in here, we’ve sent it a link. It works once and expires in 15 minutes.",
			">Use a different address</a>",
		}},
		{"/signed-out", "Signed out · Slides", []string{
			"You’re signed out",
			"You’ve signed out of Slides on this device.",
			`href="/signin"`,
		}},
	} {
		rec := get(t, h, tc.path)
		body := rec.Body.String()
		if rec.Code != http.StatusOK {
			t.Fatalf("GET %s: %d", tc.path, rec.Code)
		}
		if m := title.FindStringSubmatch(body); m == nil || m[1] != tc.title {
			t.Errorf("GET %s: title %v, want %q", tc.path, m, tc.title)
		}
		for _, w := range tc.want {
			if !strings.Contains(body, w) {
				t.Errorf("GET %s lacks %q", tc.path, w)
			}
		}
		for _, bad := range []string{"Email me a link", "Home"} {
			if strings.Contains(body, bad) {
				t.Errorf("GET %s says %q", tc.path, bad)
			}
		}
	}
}