package notify

import (
	"io"
	"log"
	"testing"
)

// R-521 F6 (S32, `09` §3 decision 227). MEASURED 2026-09-14 (BIGNIGHT): a drive was unplugged, plugged
// back (`storage_reconnected`), and unplugged again 40 minutes later — and the second loss mailed
// NOBODY: the per-key cooldown armed by the first `storage_disconnected` outlived the recovery.
// A re-plug ends the incident, so it ends that incident's cooldown, on both channels.
//
// Also pins the S32 rule: the household gets the lost-drive mail ONLY when its own list carries
// `storage_disconnected`; a household that did not switch it on gets none.
// RED-PROOF: without the reset in processEvent the second unplug gives 1 operator / 1 customer mail.
func TestDriveLostAgainAfterReplugMailsAgain(t *testing.T) {
	st := newDispStore(t)
	if err := st.SaveNotificationPrefs("on", "house-on@example.com", []string{"storage_disconnected"}, 6); err != nil {
		t.Fatal(err)
	}
	if err := st.SaveNotificationPrefs("off", "house-off@example.com", []string{"backup_failed"}, 6); err != nil {
		t.Fatal(err)
	}
	d := NewDispatcher(st, "test-key", "from@felhom.eu", "op@felhom.eu", true, log.New(io.Discard, "", 0))
	sent := captureSeam(d)

	for _, c := range []string{"on", "off"} {
		d.ProcessEvent(c, "storage_disconnected", "error", "drive lost", `{}`, "controller")
		d.ProcessEvent(c, "storage_reconnected", "info", "drive back", `{}`, "controller")
		d.ProcessEvent(c, "storage_disconnected", "error", "drive lost again", `{}`, "controller")
	}
	if got := len(mailsFor(*sent, "house-on@example.com")); got != 2 {
		t.Fatalf("household that switched it on: %d lost-drive mails, want 2 (one per loss)", got)
	}
	if got := len(mailsFor(*sent, "house-off@example.com")); got != 0 {
		t.Fatalf("household that did not switch it on got %d mails, want 0", got)
	}
	if got := len(mailsFor(*sent, "op@felhom.eu")); got != 4 {
		t.Fatalf("operator: %d mails, want 4 (two losses × two customers)", got)
	}
}