package content

import (
	"testing"
	"testing/fstest"
)

func TestSettingsAreOptionalAndNormalised(t *testing.T) {
	// A bare site root must still serve, so an absent file is not an error (ADR-0026).
	got, err := LoadSettings(fstest.MapFS{})
	if err != nil || got.Base != "" || got.Title != "" {
		t.Fatalf("absent site.yaml gave %+v, %v — want the zero value and no error", got, err)
	}
	got, err = LoadSettings(fstest.MapFS{
		SettingsFile: {Data: []byte("base: https://khosra.example/\ntitle: খসড়া\n")},
	})
	if err != nil {
		t.Fatal(err)
	}
	if got.Base != "https://khosra.example" {
		t.Errorf("base = %q — a trailing slash must be trimmed, or every URL doubles it", got.Base)
	}
	if got.Title != "খসড়া" {
		t.Errorf("title = %q", got.Title)
	}
}

func TestMalformedSettingsAreAnError(t *testing.T) {
	// Unlike one bad bundle, which is skipped loudly (ADR-0029), this misconfigures every page, so the
	// caller treats it as fatal.
	if _, err := LoadSettings(fstest.MapFS{SettingsFile: {Data: []byte("base: [unclosed\n")}}); err == nil {
		t.Error("a malformed site.yaml must be an error")
	}
}

func TestAbsoluteOnlyPrefixesWhenABaseExists(t *testing.T) {
	for _, c := range []struct{ base, path, want string }{
		{"https://khosra.example", "/posts/hello/", "https://khosra.example/posts/hello/"},
		{"", "/posts/hello/", "/posts/hello/"},
	} {
		if got := Absolute(c.base, c.path); got != c.want {
			t.Errorf("Absolute(%q, %q) = %q, want %q", c.base, c.path, got, c.want)
		}
	}
}