package main

import (
	"testing"

	"hamlog/internal/cat"
)

// Three band tables exist in Go — cat.BandFromHz (the rig/CAT one), bandForHz
// (awards) and the cluster's own — plus one in App.tsx. They must agree, and
// nothing checked it: the CAT one stopped at 23 cm, so a 10 GHz QSO came back
// with an EMPTY band. An empty band is not a cosmetic problem — it is not
// logged, not counted in any award slot, and exports without a BAND field.
//
// One frequency per band, taken inside the range, plus the edges that used to be
// missing entirely.
func TestBandPlansAgree(t *testing.T) {
	cases := []struct {
		hz   int64
		want string
	}{
		{137000, "2190m"},
		{475000, "630m"},
		{1840000, "160m"},
		{3650000, "80m"},
		{7100000, "40m"},
		{10120000, "30m"},
		{14200000, "20m"},
		{18100000, "17m"},
		{21200000, "15m"},
		{24940000, "12m"},
		{28400000, "10m"},
		{50150000, "6m"},
		{70200000, "4m"},
		{144300000, "2m"},
		{223500000, "1.25m"},
		{432000000, "70cm"},
		{1296000000, "23cm"},
		// The microwave bands that were missing. 3 cm is the one an operator
		// reported: 10 GHz is worked and spotted, and resolved to nothing.
		{2320000000, "13cm"},
		{3400000000, "9cm"},
		{5760000000, "6cm"},
		{10368000000, "3cm"},
		{24048000000, "1.25cm"},
		{47088000000, "6mm"},
		{76032000000, "4mm"},
		{122250000000, "2.5mm"},
		{134928000000, "2mm"},
		{241920000000, "1mm"},
	}
	for _, c := range cases {
		if got := cat.BandFromHz(c.hz); got != c.want {
			t.Errorf("cat.BandFromHz(%d) = %q, want %q", c.hz, got, c.want)
		}
		if got := bandForHz(c.hz); got != c.want {
			t.Errorf("bandForHz(%d) = %q, want %q — the award band plan disagrees with the CAT one", c.hz, got, c.want)
		}
	}
}

// A frequency in no amateur band must resolve to "" everywhere, not to the
// nearest band: guessing here would put a QSO in a band the operator never used.
func TestBandPlanRejectsOutOfBand(t *testing.T) {
	for _, hz := range []int64{100_000_000, 1_000_000_000, 15_000_000_000} {
		if got := cat.BandFromHz(hz); got != "" {
			t.Errorf("cat.BandFromHz(%d) = %q, want empty", hz, got)
		}
		if got := bandForHz(hz); got != "" {
			t.Errorf("bandForHz(%d) = %q, want empty", hz, got)
		}
	}
}