package web

import (
	"strings"
	"testing"

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

// ── R-294 / R-202 — THE ORPHAN CARD STOPS PROMISING WHAT IT CANNOT KNOW ─────────────────────────
//
// The card told a customer, at the moment they had just lost their off-site history, that the old
// copies "may be restorable later with their recovery code". The discriminator is
// host_escrow_superseded.identity_blob and it lives on the HUB; the box caches only
// HubEscrowIdentityPresent, which describes the CURRENT escrow, and no report or ACK field carries
// superseded-blob retention. The renderer therefore could not evaluate the condition it stated.
//
// For everything set aside before hub v0.93.0 (in force 2026-08-04 ~11:11Z) the promise is false and
// unfixable, and on 2026-08-10 it was being made to a real machine in exactly that state.
//
// Implements documentation/design/SPEC-orphan-card-copy-2026-08-10.md §5. Render tests per branch of
// the gate, because a template gate without one is the seam-wiring lesson.

// orphanCardData renders the backups_remote page with the offbox repo in the given state. Only
// RepoState varies between the branches below, so what each test proves is attributable.
func orphanCardData(repoState string) map[string]interface{} {
	d := splitTestData()
	d["Offbox"] = &settings.OffboxTarget{
		Enabled: true, Host: "nas.local", User: "felhom", RepoPath: "/srv/repo",
		EscrowState: "escrowed", RepoState: repoState, QuotaGB: 50, StatsKnown: true,
	}
	d["OffboxQuotaPct"] = 0
	return d
}

// ── Branch 1: the card IS shown ─────────────────────────────────────────────────────────────────

// SPEC §5.1 — the regression guard. The promise must not return in any form.
//
// RED-PROOF: restore the old sentence („…és a hozzá tartozó helyreállítási kóddal később
// visszaállítható lehet.") in backups_remote.html and this fails on the first assertion, with the
// promise quoted back in the failure message.
func TestOrphanCard_DoesNotPromiseRestorability(t *testing.T) {
	html := renderBackupPage(t, "backups_remote", orphanCardData("orphaned"))

	if !strings.Contains(html, "offbox-orphan-card") {
		t.Fatal("the orphan card did not render at all — this test would then pass vacuously, " +
			"which is the way a copy guard silently stops guarding")
	}
	if strings.Contains(html, "visszaállítható lehet") {
		t.Error("R-294: the card still promises the set-aside copies may be restorable later. The box " +
			"cannot evaluate that — the discriminator (superseded identity_blob) is on the hub and no " +
			"wire field carries it — and for everything set aside before 2026-08-04 it is false")
	}
}

// SPEC §5.2 — a refusal that names no route is a defect in this project. Pin the route, not only the
// absence of the promise.
//
// RED-PROOF: delete the „írj nekünk" sentence and this fails — the customer is told we cannot promise
// anything and given nowhere to go.
func TestOrphanCard_NamesARouteAfterDeclining(t *testing.T) {
	html := renderBackupPage(t, "backups_remote", orphanCardData("orphaned"))

	if !strings.Contains(html, "nem tudjuk megígérni") {
		t.Error("R-294: the card no longer DECLINES the claim — stating nothing is not the same as " +
			"saying plainly that we cannot promise it")
	}
	if !strings.Contains(html, "írj nekünk") {
		t.Error("R-294: the card declines the promise but names no route the customer can take")
	}
	// It must still say the copy is kept — otherwise "we cannot promise" reads as "it is gone".
	if !strings.Contains(html, "nem töröljük") {
		t.Error("R-294: the card no longer says the set-aside copy is kept; without that, declining " +
			"the promise reads to the customer as data loss")
	}
}

// The reason the card exists — the orphan EXPLANATION — is accurate and must survive the copy change.
func TestOrphanCard_KeepsTheExplanation(t *testing.T) {
	html := renderBackupPage(t, "backups_remote", orphanCardData("orphaned"))

	if !strings.Contains(html, "korábbi, már nem elérhető kulccsal") {
		t.Error("the explanation of WHY the store is orphaned was lost — the customer is then shown a " +
			"refusal with no cause")
	}
}

// ── Branch 2: the card is NOT shown ─────────────────────────────────────────────────────────────

// SPEC §5.3 — per branch of the gate. A healthy store must not see any of this copy: R-215's shape is
// a screen about a situation the customer is not in.
func TestOrphanCard_HealthyStoreSeesNoneOfIt(t *testing.T) {
	html := renderBackupPage(t, "backups_remote", orphanCardData("ok"))

	if strings.Contains(html, "offbox-orphan-card") {
		t.Fatal("the orphan card rendered for a healthy store")
	}
	for _, s := range []string{"nem tudjuk megígérni", "írj nekünk", "félretéve marad"} {
		if strings.Contains(html, s) {
			t.Errorf("orphan copy %q leaked onto a healthy box's page", s)
		}
	}
}