package campaigns

import "testing"

func TestListTemplates(t *testing.T) {
	tpls := ListTemplates()
	if len(tpls) != 4 {
		t.Fatalf("expected 4 templates, got %d", len(tpls))
	}
	for _, key := range []string{"christmas", "black_friday", "spring", "custom"} {
		if !ValidTemplateKey(key) {
			t.Fatalf("expected valid key %s", key)
		}
	}
}

func TestNormalizeEmail(t *testing.T) {
	e, err := NormalizeEmail("  User@Example.COM ")
	if err != nil || e != "user@example.com" {
		t.Fatalf("got %q err=%v", e, err)
	}
	if _, err := NormalizeEmail("not-an-email"); err == nil {
		t.Fatal("expected error")
	}
}

func TestUnsubscribeFooter(t *testing.T) {
	html, plain := EnsureUnsubscribeFooter("<p>Hi</p>", "Hi", "https://example.com/unsubscribe?token=abc")
	if !HasUnsubscribeFooter(html) {
		t.Fatalf("missing footer in %s", html)
	}
	if plain == "" {
		t.Fatal("plain empty")
	}
}