package matching

// Expected values verified against scripts/match_payments.py on 2026-05-06:
//
//	PYTHONPATH=scripts:. python3 -c '
//	from match_payments import _build_name_variants
//	for n in ["František Vrbík (Štrúdl)", "Tov (St)", "Jana", "  Petr  Novák  ( Jenda ) "]:
//	    print(repr(n), "->", _build_name_variants(n))
//	'
//
// Output:
//
//	'František Vrbík (Štrúdl)' -> ['frantisek vrbik', 'strudl', 'vrbik', 'frantisek']
//	'Tov (St)' -> ['tov']
//	'Jana' -> ['jana']
//	'  Petr  Novák  ( Jenda ) ' -> ['petr  novak', ' jenda ', 'novak', 'petr']

import (
	"reflect"
	"testing"
)

func TestBuildNameVariants(t *testing.T) {
	t.Parallel()

	cases := []struct {
		name  string
		input string
		want  []string
	}{
		{
			name:  "full name with nickname",
			input: "František Vrbík (Štrúdl)",
			want:  []string{"frantisek vrbik", "strudl", "vrbik", "frantisek"},
		},
		{
			name:  "nickname too short filtered out",
			input: "Tov (St)",
			want:  []string{"tov"},
		},
		{
			name:  "single-part name no nickname",
			input: "Jana",
			want:  []string{"jana"},
		},
		{
			name:  "extra whitespace inside parens preserved by normalize",
			input: "  Petr  Novák  ( Jenda ) ",
			want:  []string{"petr  novak", " jenda ", "novak", "petr"},
		},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()
			got := BuildNameVariants(tc.input)
			if !reflect.DeepEqual(got, tc.want) {
				t.Errorf("BuildNameVariants(%q)\n got  %q\n want %q", tc.input, got, tc.want)
			}
		})
	}
}