package yabl

import (
	"reflect"
	"testing"
)

func Test_signedAirTemp8BitTypeHelper_fromBus(t *testing.T) {
	entity := &PeripheryInfo{}
	idx := 2
	value := reflect.ValueOf(entity).Elem().Field(idx)

	val42 := SignedAirTemp8BitType(42)
	valM15 := SignedAirTemp8BitType(-15)

	tests := []struct {
		name    string
		fHelper fHelper
		arg     uint64
		want    *SignedAirTemp8BitType
	}{
		{
			name:    "SignedAirTemp8BitType positive from bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     42 + 67,
			want:    &val42,
		},
		{
			name:    "SignedAirTemp8BitType negative from bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     -15 + 67,
			want:    &valM15,
		},
		{
			name:    "SignedAirTemp8BitType null from bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     255,
			want:    nil,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := tt.fHelper.fromBus(tt.arg)
			if !(reflect.DeepEqual(got, tt.want) || ((got == nil) && (tt.want == nil))) {
				t.Errorf("fromBus() = %v, want %v", got, tt.want)
			}
			if !(reflect.DeepEqual(entity.TempAirIn, tt.want) || ((entity.TempAirIn == nil) && (tt.want == nil))) {
				t.Errorf("entity.TempAirIn = %v, want %v", entity.TempAirIn, tt.want)
			}
		})
	}
}

func Test_signedAirTemp8BitTypeHelper_toBus(t *testing.T) {
	entity := &PeripheryInfo{}
	idx := 2
	value := reflect.ValueOf(entity).Elem().Field(idx)

	val42 := SignedAirTemp8BitType(42)
	valM15 := SignedAirTemp8BitType(-15)

	type wants struct {
		bus uint64
		val *SignedAirTemp8BitType
	}
	tests := []struct {
		name    string
		fHelper fHelper
		arg     any
		want    wants
	}{
		{
			name:    "SignedAirTemp8BitType from int to bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     42,
			want:    wants{bus: 42 + 67, val: &val42},
		},
		{
			name:    "SignedAirTemp8BitType from negative int to bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     -15,
			want:    wants{bus: -15 + 67, val: &valM15}, // uint(-15) | mask
		},
		{
			name:    "SignedAirTemp8BitType from negative string to bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     "-15",
			want:    wants{bus: -15 + 67, val: &valM15}, // uint(-15) | mask
		},
		{
			name:    "SignedAirTemp8BitType failed value to bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     "fail",
			want:    wants{bus: 255, val: nil}, // uint(-15) | mask
		},
		{
			name:    "SignedAirTemp8BitType nil value to bus",
			fHelper: &signedAirTemp8BitTypeHelper{baseTypeHelper{rValue: &value}},
			arg:     "nil",
			want:    wants{bus: 255, val: nil}, // uint(-15) | mask
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := tt.fHelper.toBus(tt.arg)
			if !reflect.DeepEqual(got, tt.want.bus) {
				t.Errorf("fromBus() = %v, want %v", got, tt.want.bus)
			}
			if !reflect.DeepEqual(entity.TempAirIn, tt.want.val) {
				t.Errorf("entity.TempAirIn = %v, want %v", entity.TempAirIn, tt.want.val)
			}
		})
	}
}