package web

import (
	"io"
	"log"
	"path/filepath"
	"strings"
	"testing"

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

// R-553 — the Távoli mentés page replaces a stale „nothing was selected" run note once apps HAVE been
// selected. It used to find that note by searching the sentence for „nincs mentésre jelölt alkalmazás";
// slice 2 translates the sentence, and the stale note would then come back and stay — telling a
// household that has selected apps that nothing is covered.
//
// RED-PROOF (REPORT): make offboxWarningDisplay decide by the marker again (drop the kind arm) and
// the TRANSLATED row fails: the stale sentence is shown verbatim.
func TestR553_StaleNoteDecisionSurvivesWordingChange(t *testing.T) {
	s, _, _ := newOffboxWebServer(t)
	// The replacement note is read from the bundle (v0.252.0, R-557): the same sentence the constant
	// used to hold, now measured against hu.json rather than restated beside it.
	selectionChanged := s.msgLang("hu", offboxSelectionChangedKey)
	const hu = "Sikeres — nincs mentésre jelölt alkalmazás"
	const en = "Success — no app is selected for backup"
	cases := []struct {
		name, warning, kind string
		toggled             int
		want                string
	}{
		{"as shipped, apps now selected", hu, backup.OffboxWarnNoAppsSelected, 1, selectionChanged},
		{"TRANSLATED, apps now selected", en, backup.OffboxWarnNoAppsSelected, 2, selectionChanged},
		{"still nothing selected → the honest note stays", hu, backup.OffboxWarnNoAppsSelected, 0, hu},
		{"a quota note passes through", "A tároló a keret 84%-át használja (42/50 GB).", "", 3,
			"A tároló a keret 84%-át használja (42/50 GB)."},
		// LEGACY: a box upgraded to v0.251.0 still carries the OLD text with no kind until its next
		// off-site run rewrites it. Until then the text test is what it has.
		{"legacy persisted text, no kind", hu, "", 1, selectionChanged},
		{"legacy: any other text without a kind is shown verbatim", "Valami más történt.", "", 1, "Valami más történt."},
	}
	for _, c := range cases {
		if got := s.offboxWarningDisplay(c.warning, c.kind, c.toggled, "hu"); got != c.want {
			t.Errorf("%s:\n got %q\nwant %q", c.name, got, c.want)
		}
	}
}

// The consequence on the page itself: with a TRANSLATED warning that carries the kind, the rendered
// Távoli mentés page shows the selection-changed note and not the stale sentence.
func TestR553_StaleNoteOnTheRenderedPage(t *testing.T) {
	s, _, _ := newOffboxWebServer(t)
	selectionChanged := s.msgLang("hu", offboxSelectionChangedKey)
	const en = "Success — no app is selected for backup"
	data := appRowSplitData()
	data["Offbox"] = &settings.OffboxTarget{
		Enabled: true, Host: "nas.local", LastStatus: "ok", EscrowState: "escrowed",
		LastWarning: en, LastWarningKind: backup.OffboxWarnNoAppsSelected,
	}
	data["OffboxWarningDisplay"] = s.offboxWarningDisplay(en, backup.OffboxWarnNoAppsSelected, 1, "hu")
	html := renderBackupPage(t, "backups_remote", data)
	if !strings.Contains(html, selectionChanged) {
		t.Error("the selection-changed note is missing for a translated warning that carries its kind")
	}
	if strings.Contains(html, en) {
		t.Error("the stale note is still on the page beside its replacement")
	}
}

// The kind has to be PERSISTED beside the text and survive an edit of the target, or the page falls
// back to the legacy text test on the next render (settings.json is the only carrier between runs).
func TestR553_WarningKindIsPersistedAndCopied(t *testing.T) {
	tgt := settings.OffboxTarget{
		Enabled: true, Host: "nas.local", User: "felhom", RepoPath: "/srv/repo",
		LastWarning: "Sikeres — nincs mentésre jelölt alkalmazás", LastWarningKind: backup.OffboxWarnNoAppsSelected,
	}
	dir := t.TempDir()
	load := func() *settings.Settings {
		s, err := settings.Load(filepath.Join(dir, "settings.json"), log.New(io.Discard, "", 0))
		if err != nil {
			t.Fatal(err)
		}
		return s
	}
	if err := load().SetOffboxTarget(&tgt); err != nil {
		t.Fatal(err)
	}
	reloaded := load().GetOffboxTarget()
	if reloaded == nil {
		t.Fatal("the target did not survive the reload")
	}
	if reloaded.LastWarningKind != backup.OffboxWarnNoAppsSelected {
		t.Errorf("the warning kind was not persisted: %q", reloaded.LastWarningKind)
	}
	if reloaded.LastWarning != tgt.LastWarning {
		t.Errorf("the warning text changed across the reload: %q", reloaded.LastWarning)
	}
}