use std::fmt;
use serde::{de, Deserialize, ser, Serialize};
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum LanguageProficiencyIndicatorCode {
EnglishOnly,
FullyEnglishProficient,
LimitedEnglishProficient,
NonEnglishSpeaking,
StatusUnknown,
RedesignatedFluentEnglishProficient,
ExcellentOrFluent,
Good,
Fair,
Poor,
Unacceptable,
}
impl LanguageProficiencyIndicatorCode {
pub fn code(&self) -> &str {
{
use LanguageProficiencyIndicatorCode::*;
match self {
EnglishOnly => "1",
FullyEnglishProficient => "2",
LimitedEnglishProficient => "3",
NonEnglishSpeaking => "4",
StatusUnknown => "5",
RedesignatedFluentEnglishProficient => "6",
ExcellentOrFluent => "A",
Good => "B",
Fair => "C",
Poor => "D",
Unacceptable => "E",
}
}
}
pub fn from_code(code: &[u8]) -> Option<LanguageProficiencyIndicatorCode> {
use LanguageProficiencyIndicatorCode::*;
match code {
b"1" => Some(EnglishOnly),
b"2" => Some(FullyEnglishProficient),
b"3" => Some(LimitedEnglishProficient),
b"4" => Some(NonEnglishSpeaking),
b"5" => Some(StatusUnknown),
b"6" => Some(RedesignatedFluentEnglishProficient),
b"A" => Some(ExcellentOrFluent),
b"B" => Some(Good),
b"C" => Some(Fair),
b"D" => Some(Poor),
b"E" => Some(Unacceptable),
_ => None,
}
}
fn description(&self) -> &str {
use LanguageProficiencyIndicatorCode::*;
match self {
EnglishOnly => "English Only",
FullyEnglishProficient => "Fully English Proficient",
LimitedEnglishProficient => "Limited English Proficient",
NonEnglishSpeaking => "Non-English Speaking",
StatusUnknown => "Status Unknown",
RedesignatedFluentEnglishProficient => {
"Redesignated Fluent English Proficient"
}
ExcellentOrFluent => "Excellent or Fluent",
Good => "Good",
Fair => "Fair",
Poor => "Poor",
Unacceptable => "Unacceptable",
}
}
fn from_description(description: &str) -> Option<LanguageProficiencyIndicatorCode> {
{
use LanguageProficiencyIndicatorCode::*;
match description {
"English Only" => Some(EnglishOnly),
"Fully English Proficient" => Some(FullyEnglishProficient),
"Limited English Proficient" => Some(LimitedEnglishProficient),
"Non-English Speaking" => Some(NonEnglishSpeaking),
"Status Unknown" => Some(StatusUnknown),
"Redesignated Fluent English Proficient" => {
Some(RedesignatedFluentEnglishProficient)
}
"Excellent or Fluent" => Some(ExcellentOrFluent),
"Good" => Some(Good),
"Fair" => Some(Fair),
"Poor" => Some(Poor),
"Unacceptable" => Some(Unacceptable),
_ => None,
}
}
}
}
impl Serialize for LanguageProficiencyIndicatorCode {
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 = LanguageProficiencyIndicatorCode;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("Language Proficiency Indicator Code")
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
LanguageProficiencyIndicatorCode::from_description(v)
.ok_or_else(|| E::custom(
format!("Invalid Language Proficiency Indicator Code: {}", v),
))
}
fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
where
E: de::Error,
{
LanguageProficiencyIndicatorCode::from_code(v)
.ok_or_else(|| E::custom(
format!(
"Invalid Language Proficiency Indicator Code: {}",
std::str::from_utf8(v).unwrap()
),
))
}
}
impl<'de> Deserialize<'de> for LanguageProficiencyIndicatorCode {
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)
}
}
}