package stacks

import (
	"strings"
	"testing"
)

// R-645 (09 §3 decision 142) — the night backup asks "is this app running its pinned version?".
// These pin the answer; r645_version_skip_test.go (backup) pins what the backup does with it.

// The measured shape (9202, 2026-09-23): a failed update leaves the pin on the new version and the
// running record on the old one. Read from the app.yaml ON DISK, not the in-memory copy.
func TestR645_PinNotRunning_FailedUpdateShapeIsAMismatch(t *testing.T) {
	appYAML := "deployed: true\npinned_images:\n  web: nextcloud:34.0.1-apache\ninstalled_images:\n  web:\n    ref: nextcloud:31.0.14-apache\n"
	m, _ := newPinManager(t, pinTplNew, "", appYAML)
	m.stacks["nextcloud"].AppConfig = nil // the in-memory view must not be what answers
	why, skip := m.PinNotRunning("nextcloud")
	if !skip || !strings.Contains(why, "web runs nextcloud:31.0.14-apache, pinned nextcloud:34.0.1-apache") {
		t.Fatalf("PinNotRunning = (%q, %v), want a mismatch naming both versions", why, skip)
	}
}

func TestR645_PinNotRunning_AgreementAndUnknownAreNotAMismatch(t *testing.T) {
	for name, appYAML := range map[string]string{
		"agree":              "deployed: true\npinned_images:\n  web: nextcloud:31.0.14-apache\ninstalled_images:\n  web:\n    ref: nextcloud:31.0.14-apache\n",
		"unpinned":           "deployed: true\ninstalled_images:\n  web:\n    ref: nextcloud:31.0.14-apache\n",
		"no running record":  "deployed: true\npinned_images:\n  web: nextcloud:34.0.1-apache\n",
		"service unobserved": "deployed: true\npinned_images:\n  web: nextcloud:34.0.1-apache\ninstalled_images:\n  db:\n    ref: postgres:16\n",
	} {
		m, _ := newPinManager(t, pinTplOld, "", appYAML)
		if why, skip := m.PinNotRunning("nextcloud"); skip {
			t.Errorf("%s: unknown or agreeing must never skip a backup, got (%q, true)", name, why)
		}
	}
	m, _ := newPinManager(t, pinTplOld, "", "deployed: true\n")
	if _, skip := m.PinNotRunning("no-such-app"); skip {
		t.Error("an unknown app is not a mismatch")
	}
}