use std::fmt;
use serde::{de, Deserialize, ser, Serialize};
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum NonVisitCode {
LabOrClinicalReports,
VisitingNurse,
Other,
}
impl NonVisitCode {
pub fn code(&self) -> &str {
{
use NonVisitCode::*;
match self {
LabOrClinicalReports => "L",
VisitingNurse => "N",
Other => "O",
}
}
}
pub fn from_code(code: &[u8]) -> Option<NonVisitCode> {
use NonVisitCode::*;
match code {
b"L" => Some(LabOrClinicalReports),
b"N" => Some(VisitingNurse),
b"O" => Some(Other),
_ => None,
}
}
fn description(&self) -> &str {
use NonVisitCode::*;
match self {
LabOrClinicalReports => "Lab or Clinical Reports",
VisitingNurse => "Visiting Nurse",
Other => "Other",
}
}
fn from_description(description: &str) -> Option<NonVisitCode> {
{
use NonVisitCode::*;
match description {
"Lab or Clinical Reports" => Some(LabOrClinicalReports),
"Visiting Nurse" => Some(VisitingNurse),
"Other" => Some(Other),
_ => None,
}
}
}
}
impl Serialize for NonVisitCode {
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 = NonVisitCode;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("Non-Visit Code")
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
NonVisitCode::from_description(v)
.ok_or_else(|| E::custom(format!("Invalid Non-Visit Code: {}", v)))
}
fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
where
E: de::Error,
{
NonVisitCode::from_code(v)
.ok_or_else(|| E::custom(
format!("Invalid Non-Visit Code: {}", std::str::from_utf8(v).unwrap()),
))
}
}
impl<'de> Deserialize<'de> for NonVisitCode {
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)
}
}
}