use std::fmt;
use serde::{de, Deserialize, ser, Serialize};
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum UnitDoseCode {
NotSpecified,
NotUnitDose,
ManufacturerUnitDose,
PharmacyUnitDose,
TreatedGroup,
UntreatedControlGroup,
VehicleControlGroup,
PositiveControlGroup,
OptionalControlGroup,
MutuallyDefined,
}
impl UnitDoseCode {
pub fn code(&self) -> &str {
{
use UnitDoseCode::*;
match self {
NotSpecified => "0",
NotUnitDose => "1",
ManufacturerUnitDose => "2",
PharmacyUnitDose => "3",
TreatedGroup => "4",
UntreatedControlGroup => "5",
VehicleControlGroup => "6",
PositiveControlGroup => "7",
OptionalControlGroup => "8",
MutuallyDefined => "Z",
}
}
}
pub fn from_code(code: &[u8]) -> Option<UnitDoseCode> {
use UnitDoseCode::*;
match code {
b"0" => Some(NotSpecified),
b"1" => Some(NotUnitDose),
b"2" => Some(ManufacturerUnitDose),
b"3" => Some(PharmacyUnitDose),
b"4" => Some(TreatedGroup),
b"5" => Some(UntreatedControlGroup),
b"6" => Some(VehicleControlGroup),
b"7" => Some(PositiveControlGroup),
b"8" => Some(OptionalControlGroup),
b"Z" => Some(MutuallyDefined),
_ => None,
}
}
fn description(&self) -> &str {
use UnitDoseCode::*;
match self {
NotSpecified => "Not Specified",
NotUnitDose => "Not Unit Dose",
ManufacturerUnitDose => "Manufacturer Unit Dose",
PharmacyUnitDose => "Pharmacy Unit Dose",
TreatedGroup => "Treated Group",
UntreatedControlGroup => "Untreated Control Group",
VehicleControlGroup => "Vehicle Control Group",
PositiveControlGroup => "Positive Control Group",
OptionalControlGroup => "Optional Control Group",
MutuallyDefined => "Mutually Defined",
}
}
fn from_description(description: &str) -> Option<UnitDoseCode> {
{
use UnitDoseCode::*;
match description {
"Not Specified" => Some(NotSpecified),
"Not Unit Dose" => Some(NotUnitDose),
"Manufacturer Unit Dose" => Some(ManufacturerUnitDose),
"Pharmacy Unit Dose" => Some(PharmacyUnitDose),
"Treated Group" => Some(TreatedGroup),
"Untreated Control Group" => Some(UntreatedControlGroup),
"Vehicle Control Group" => Some(VehicleControlGroup),
"Positive Control Group" => Some(PositiveControlGroup),
"Optional Control Group" => Some(OptionalControlGroup),
"Mutually Defined" => Some(MutuallyDefined),
_ => None,
}
}
}
}
impl Serialize for UnitDoseCode {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: ser::Serializer,
{
let value = if serializer.is_human_readable() {
self.description()
} else {
self.code()
};
serializer.serialize_str(value)
}
}
struct Visitor;
impl<'de> de::Visitor<'de> for Visitor {
type Value = UnitDoseCode;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("Unit Dose Code")
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
UnitDoseCode::from_description(v)
.ok_or_else(|| E::custom(format!("Invalid Unit Dose Code: {}", v)))
}
fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
where
E: de::Error,
{
UnitDoseCode::from_code(v)
.ok_or_else(|| E::custom(
format!("Invalid Unit Dose Code: {}", std::str::from_utf8(v).unwrap()),
))
}
}
impl<'de> Deserialize<'de> for UnitDoseCode {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: de::Deserializer<'de>,
{
if deserializer.is_human_readable() {
deserializer.deserialize_str(Visitor)
} else {
deserializer.deserialize_bytes(Visitor)
}
}
}