package multicase

import "testing"

var header = []string{"Firma", "Year", "Month", "Day", "Konto", "Bilagsnummer", "Belop", "MvaKode",
	"BilagsArt", "BilagsArtTekst", "Tekst", "Faktura kundenr", "LevNr.", "BuntHodeID"}

func row(account, number, amount, vat, typ, typeText, customer, batch string) []string {
	return []string{"Demo AS", "2026", "10", "1", account, number, amount, vat, typ, typeText, "Demo", customer, "", batch}
}

func TestParse(t *testing.T) {
	grid := [][]string{
		header,
		row("3000", "100", "-125", "3", "11", "Faktura", "20001", "1"),
		row("20001", "100", "125", "", "11", "Faktura", "20001", "1"),
		row("1460", "0", "-10", "", "31", "Lagerkorrigering", "", "1"),
		row("4301", "0", "10", "", "31", "Lagerkorrigering", "", "1"),
		row("1460", "0", "5", "", "31", "Lagerkorrigering", "", "2"),
		row("4301", "0", "-5", "", "31", "Lagerkorrigering", "", "2"),
	}
	vs, err := Parse(grid)
	if err != nil {
		t.Fatal(err)
	}
	if len(vs) != 3 {
		t.Fatalf("got %d vouchers, want 3", len(vs))
	}
	keys := map[string]bool{}
	for _, v := range vs {
		keys[v.Key()] = true
		if v.Balance() != 0 {
			t.Errorf("%s does not balance", v.Label())
		}
	}
	for _, k := range []string{"multicase:11:100", "multicase:31:bunt-1", "multicase:31:bunt-2"} {
		if !keys[k] {
			t.Errorf("missing voucher %s in %v", k, keys)
		}
	}
	if got := vs[0].Lines[0].Amount; got != -12500 {
		t.Errorf("amount = %d øre, want -12500", got)
	}
}

func TestParseRejectsMissingColumns(t *testing.T) {
	if _, err := Parse([][]string{{"Konto", "Belop"}}); err == nil {
		t.Fatal("expected an error for a file that is not a buntfil")
	}
}

func TestParseAmount(t *testing.T) {
	tests := map[string]int64{
		"":          0,
		"46.7":      4670,
		"-46.7":     -4670,
		"44587.125": 4458713,
		"-4053.375": -405338,
		"0.1":       10,
		"1,5":       150,
	}
	for in, want := range tests {
		got, err := ParseAmount(in)
		if err != nil || got != want {
			t.Errorf("ParseAmount(%q) = %d, %v; want %d", in, got, err, want)
		}
	}
}