use serde::{Deserialize, Serialize};
use std::{fmt, str};

#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, sqlx::Type)]
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 {}),
        }
    }
}