package classes

import (
	"testing"

	"git.golem15.com/golem15/summercms/modules/pact"
)

// TestLangTag pins the language tags of locale codes.
func TestLangTag(t *testing.T) {
	for in, want := range map[string]string{"pl": "pl", "PL": "pl", "pt_BR": "pt-BR", "pt-br": "pt-BR", " en-gb ": "en-GB", "de-": "de", "": ""} {
		if got := LangTag(in); got != want {
			t.Errorf("LangTag(%q) = %q, want %q", in, got, want)
		}
	}
}

// TestAlternates pins D-55 to D-57: each translated locale with its
// absolute URL (the page itself included), x-default on the default
// locale's URL, none for one locale, a locale without an address or a
// repeated locale absent, and no x-default when the default locale is not
// translated.
func TestAlternates(t *testing.T) {
	const site = "https://example.test"
	rec := &pact.ContentRecord{Locales: []pact.ContentLocale{
		{Locale: "pl", URL: "/blog/grzyby"},
		{Locale: "en", URL: "/en/blog/mushrooms"},
		{Locale: "de", URL: " "},
		{Locale: "pl", URL: "/blog/again"},
		{Locale: "pt_BR", URL: "https://example.test/pt/cogumelos"},
	}}
	got := Alternates(site, rec, "pl")
	want := []Alternate{
		{Hreflang: "pl", URL: site + "/blog/grzyby"},
		{Hreflang: "en", URL: site + "/en/blog/mushrooms"},
		{Hreflang: "pt-BR", URL: site + "/pt/cogumelos"},
		{Hreflang: "x-default", URL: site + "/blog/grzyby"},
	}
	if len(got) != len(want) {
		t.Fatalf("alternates = %+v", got)
	}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("alternate %d = %+v, want %+v", i, got[i], want[i])
		}
	}
	if noDefault := Alternates(site, rec, "fr"); len(noDefault) != 3 || noDefault[2].Hreflang == "x-default" {
		t.Fatalf("without the default locale = %+v", noDefault)
	}
	one := &pact.ContentRecord{Locales: []pact.ContentLocale{{Locale: "pl", URL: "/a"}, {Locale: "en", URL: ""}}}
	if got := Alternates(site, one, "pl"); got == nil || len(got) != 0 {
		t.Fatalf("one locale = %+v, want []", got)
	}
	if got := Alternates(site, nil, "pl"); len(got) != 0 {
		t.Fatal("no record, no alternates")
	}
}

// TestOGLocale pins og:locale without configuration: the default table,
// the region form and the doubled language.
func TestOGLocale(t *testing.T) {
	s := &Service{}
	for in, want := range map[string]string{"pl": "pl_PL", "en": "en_US", "de": "de_DE", "pt_BR": "pt_BR", "fr": "fr_FR", "": ""} {
		if got := s.OGLocale(in); got != want {
			t.Errorf("OGLocale(%q) = %q, want %q", in, got, want)
		}
	}
}