package stock

// CapacityUnitArea 面积单位枚举
type CapacityUnitArea string

const (
	CapacityUnitAreaSquareM  CapacityUnitArea = "M2"  // 平方米
	CapacityUnitAreaSquareFT CapacityUnitArea = "FT2" // 平方英尺
	CapacityUnitAreaSquareIN CapacityUnitArea = "IN2" // 平方英寸
	CapacityUnitAreaSquareCM CapacityUnitArea = "CM2" // 平方厘米
)

// GetAllCapacityUnitAreas 获取所有面积单位
func GetAllCapacityUnitAreas() []CapacityUnitArea {
	return []CapacityUnitArea{
		CapacityUnitAreaSquareM,
		CapacityUnitAreaSquareFT,
		CapacityUnitAreaSquareIN,
		CapacityUnitAreaSquareCM,
	}
}

type CapacityUnitAreaKeyValue struct {
	Key   CapacityUnitArea
	Value string
}

var (
	CapacityUnitAreaSquareMKeyValue  = CapacityUnitAreaKeyValue{Key: CapacityUnitAreaSquareM, Value: "平方米"}
	CapacityUnitAreaSquareFTKeyValue = CapacityUnitAreaKeyValue{Key: CapacityUnitAreaSquareFT, Value: "平方英尺"}
	CapacityUnitAreaSquareINKeyValue = CapacityUnitAreaKeyValue{Key: CapacityUnitAreaSquareIN, Value: "平方英寸"}
	CapacityUnitAreaSquareCMKeyValue = CapacityUnitAreaKeyValue{Key: CapacityUnitAreaSquareCM, Value: "平方厘米"}
)

func GetAllCapacityUnitAreaKeyValue() []CapacityUnitAreaKeyValue {
	return []CapacityUnitAreaKeyValue{
		CapacityUnitAreaSquareMKeyValue,
		CapacityUnitAreaSquareFTKeyValue,
		CapacityUnitAreaSquareINKeyValue,
		CapacityUnitAreaSquareCMKeyValue,
	}
}

var capacityUnitAreaValueMap = map[CapacityUnitArea]string{
	CapacityUnitAreaSquareM:  CapacityUnitAreaSquareMKeyValue.Value,
	CapacityUnitAreaSquareFT: CapacityUnitAreaSquareFTKeyValue.Value,
	CapacityUnitAreaSquareIN: CapacityUnitAreaSquareINKeyValue.Value,
	CapacityUnitAreaSquareCM: CapacityUnitAreaSquareCMKeyValue.Value,
}

func GetCapacityUnitAreaValueByKey(key CapacityUnitArea) (value string) {
	value, exists := capacityUnitAreaValueMap[key]
	if !exists {
		value = "未知单位"
	}
	return
}