// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0

package identifiers

import "testing"

func TestNormalizeDOI(t *testing.T) {
	cases := map[string]string{
		"10.5281/zenodo.1234567":                  "10.5281/zenodo.1234567",
		" https://doi.org/10.5281/zenodo.1234567": "10.5281/zenodo.1234567",
		"DOI: 10.1234/abcd":                       "10.1234/abcd",
		"http://dx.doi.org/10.1/x":                "http://dx.doi.org/10.1/x", // unknown host stays as it is
		"":                                        "",
	}
	for in, want := range cases {
		if got := NormalizeDOI(in); got != want {
			t.Errorf("NormalizeDOI(%q) = %q, want %q", in, got, want)
		}
	}
}

func TestValidDOI(t *testing.T) {
	for _, ok := range []string{
		"10.1234/x", "10.5281/zenodo.1234567", "https://doi.org/10.1000/18.2011.01",
		"10.1109/5.77101",
	} {
		if !ValidDOI(ok) {
			t.Errorf("ValidDOI(%q) = false, want true", ok)
		}
	}
	for _, bad := range []string{
		"", "10.123/x", // needle too short
		"10./x",                  // empty needle
		"20.1234/x",              // not the 10. prefix
		"10.1234",                // no suffix
		"10.1234/ spaced suffix", // whitespace in the suffix
		"doi:10.1234/",           // empty suffix after the slash
	} {
		if ValidDOI(bad) {
			t.Errorf("ValidDOI(%q) = true, want false", bad)
		}
	}
}

func TestValidORCID(t *testing.T) {
	// A real public iD, and its computed X-check sibling.
	for _, ok := range []string{
		"0000-0002-1825-0097",
		"0000-0000-0000-001X",
		"0000-0000-0000-001x", // lower-case x is upper-cased first
		" 0000-0002-1825-0097 ",
	} {
		if !ValidORCID(ok) {
			t.Errorf("ValidORCID(%q) = false, want true", ok)
		}
	}
	for _, bad := range []string{
		"",
		"0000-0002-1825-0098", // wrong check digit
		"0000-0002-1825-009x", // right length, wrong check digit
		"0000-0002-1825-009",  // too short
		"0000000218250097",    // dashes missing
	} {
		if ValidORCID(bad) {
			t.Errorf("ValidORCID(%q) = true, want false", bad)
		}
	}
}

func TestURLs(t *testing.T) {
	if got := DOIURL("https://doi.org/10.1234/x"); got != "https://doi.org/10.1234/x" {
		t.Errorf("DOIURL = %q", got)
	}
	if got := DOIURL("nonsense"); got != "" {
		t.Errorf("DOIURL(nonsense) = %q, want empty", got)
	}
	if got := ORCIDURL("0000-0002-1825-0097"); got != "https://orcid.org/0000-0002-1825-0097" {
		t.Errorf("ORCIDURL = %q", got)
	}
	if got := ORCIDURL("0000-0002-1825-0098"); got != "" {
		t.Errorf("ORCIDURL(bad checksum) = %q, want empty", got)
	}
}