package email

import (
	"encoding/json"
	"strings"
	"testing"
)

func TestUnsubscribeInfoOmitsTenantPII(t *testing.T) {
	t.Parallel()
	info := UnsubscribeInfo{
		OK:          true,
		AlreadyDone: true,
		Message:     "already unsubscribed",
	}
	b, err := json.Marshal(info)
	if err != nil {
		t.Fatal(err)
	}
	raw := string(b)
	for _, leak := range []string{"company_id", "email"} {
		if strings.Contains(raw, leak) {
			t.Fatalf("public unsubscribe JSON must not include %q: %s", leak, raw)
		}
	}
}

func TestClampUnsubscribeReason(t *testing.T) {
	t.Parallel()
	long := strings.Repeat("a", maxUnsubscribeReasonLen+50)
	got := clampUnsubscribeReason(long)
	if len(got) != maxUnsubscribeReasonLen {
		t.Fatalf("len=%d want %d", len(got), maxUnsubscribeReasonLen)
	}
	if got := clampUnsubscribeReason("  ok  "); got != "ok" {
		t.Fatalf("trim failed: %q", got)
	}
}