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use rusqlite::types::{FromSql, FromSqlError, FromSqlResult, ValueRef};
use std::{fmt, str};
#[derive(Debug, Clone, Copy, serde::Serialize, serde::Deserialize, PartialEq)]
pub enum Frequency {
Punctual,
Monthly,
}
impl fmt::Display for Frequency {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Frequency::Punctual => write!(f, "Punctual"),
Frequency::Monthly => write!(f, "Monthly"),
}
}
}
pub struct ParseFrequencyError;
impl str::FromStr for Frequency {
type Err = ParseFrequencyError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"Punctual" => Ok(Frequency::Punctual),
"Monthly" => Ok(Frequency::Monthly),
_ => Err(ParseFrequencyError {}),
}
}
}
impl FromSql for Frequency {
fn column_result(value: ValueRef<'_>) -> FromSqlResult<Self> {
match value {
ValueRef::Text(text) => match std::str::from_utf8(text) {
Ok("Punctual") => Ok(Frequency::Punctual),
Ok("Monthly") => Ok(Frequency::Monthly),
Ok(str) => Err(FromSqlError::Other(
format!("Unknown frequency: {str}").into(),
)),
Err(err) => Err(FromSqlError::Other(err.into())),
},
_ => Err(FromSqlError::InvalidType),
}
}
}
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