package web

import (
	"net/url"
	"path/filepath"
	"strings"
	"testing"
	"time"

	"gitea.dooplex.hu/admin/felhom-controller/internal/nightchain"
)

// R-871 / `09` decision 110 — the missed-backup banner through the REAL pages (ServeHTTP → executeTemplate) and the
// REAL dismiss route. The rule itself is pinned in internal/nightchain/banner_test.go.
// COMPANION RED-PROOF: remove `s.addMissedBackupBanner(data, r)` from executeTemplate → "not shown on /launcher".

const missedBannerID = `id="missed-backup-banner"`

func missedServer(t *testing.T, lastDump time.Time) (*Server, *nightchain.Ledger) {
	t.Helper()
	s := newDashboardServer(t, time.Time{})
	l, err := nightchain.Open(filepath.Join(t.TempDir(), "night-ledger.json"), time.Now().Add(-10*24*time.Hour))
	if err != nil {
		t.Fatal(err)
	}
	if !lastDump.IsZero() {
		l.MarkDBDumpOK(lastDump)
	}
	s.SetMissedBackupBanner(l, nil)
	return s, l
}

func TestR871_BannerShownThenClosedUntilTheNextMiss(t *testing.T) {
	s, l := missedServer(t, time.Now().Add(-3*24*time.Hour))
	body := getPage(t, s, "/launcher").Body.String()
	if !strings.Contains(body, missedBannerID) {
		t.Fatal("not shown on /launcher although the last backup is 3 days old")
	}
	if !strings.Contains(body, "A legutóbbi mentés 3 nappal ezelőtt készült.") || !strings.Contains(body, `href="/backups#window_start"`) {
		t.Fatalf("the banner lacks its sentence or its button:\n%s", body[strings.Index(body, missedBannerID):][:600])
	}
	rec := postForm(t, s, "/backups/missed-banner/dismiss", url.Values{"back": {"/launcher"}})
	if rec.Code/100 != 3 {
		t.Fatalf("dismiss = %d", rec.Code)
	}
	if strings.Contains(getPage(t, s, "/launcher").Body.String(), missedBannerID) {
		t.Fatal("still shown after the household closed it")
	}
	if _, _, _, dismissed, _ := l.Snapshot(); dismissed.IsZero() {
		t.Fatal("the dismissal was not recorded in the ledger (it would not survive a restart)")
	}
}

func TestR871_BannerNotShownAfterASuccessfulNight(t *testing.T) {
	s, _ := missedServer(t, time.Now().Add(-2*time.Hour))
	if strings.Contains(getPage(t, s, "/launcher").Body.String(), missedBannerID) {
		t.Fatal("shown although the last backup is 2 hours old")
	}
}