package helicopter_usage

import "testing"

func f64(v float64) *float64 { return &v }

func TestApplyManualSummary_SeedBackComputed(t *testing.T) {
	h := &HelicopterUsage{TotalAirframeHours: 5} // aggregated 5, manual 0
	h.ApplyManualSummary(ManualSummaryInput{AirframeHours: f64(6000)})
	if h.TotalAirframeHours != 6000 {
		t.Fatalf("total = %v, want 6000", h.TotalAirframeHours)
	}
	if h.ManualAirframeHours != 5995 {
		t.Fatalf("manual = %v, want 5995 (6000-5)", h.ManualAirframeHours)
	}
}

func TestApplyManualSummary_NewFlightAccumulates(t *testing.T) {
	h := &HelicopterUsage{TotalAirframeHours: 5}
	h.ApplyManualSummary(ManualSummaryInput{AirframeHours: f64(6000)})
	// a new +10h flight raises aggregated from 5 to 15; RefreshAll recomputes Total = aggregated + manual.
	if got := 15.0 + h.ManualAirframeHours; got != 6010 {
		t.Fatalf("post-flight total = %v, want 6010", got)
	}
}

func TestApplyManualSummary_CccDirectAndNilUntouched(t *testing.T) {
	h := &HelicopterUsage{TotalEngine1Ccc: 2, TotalLanding: 100}
	h.ApplyManualSummary(ManualSummaryInput{Engine1Ccc: f64(44)})
	if h.TotalEngine1Ccc != 44 {
		t.Fatalf("ccc = %v, want 44", h.TotalEngine1Ccc)
	}
	if h.ManualEngine1GpcNgN1 != 0 || h.TotalLanding != 100 {
		t.Fatal("nil inputs must leave fields untouched")
	}
}