use std::{fmt, str::FromStr};

use serde::{Deserialize, Serialize};

#[derive(Clone, Copy, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)]
#[serde(rename_all = "lowercase")]
pub enum ClassificationAction {
    Reply,
    Review,
    Archive,
    Delete,
}

impl ClassificationAction {
    pub fn is_mailbox_action(self) -> bool {
        matches!(self, Self::Archive | Self::Delete)
    }
}

impl fmt::Display for ClassificationAction {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        formatter.write_str(match self {
            Self::Reply => "reply",
            Self::Review => "review",
            Self::Archive => "archive",
            Self::Delete => "delete",
        })
    }
}

impl FromStr for ClassificationAction {
    type Err = String;

    fn from_str(value: &str) -> Result<Self, Self::Err> {
        match value {
            "reply" => Ok(Self::Reply),
            "review" => Ok(Self::Review),
            "archive" => Ok(Self::Archive),
            "delete" => Ok(Self::Delete),
            _ => Err(format!("unknown classification action: {value}")),
        }
    }
}