sara-tasks 2.7.5

Sara — folder-aware task manager
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use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "lowercase")]
pub enum Priority {
    H,
    M,
    L,
}

impl Priority {
    pub fn urgency_coefficient(&self) -> f64 {
        match self {
            Priority::H => 6.0,
            Priority::M => 3.9,
            Priority::L => 1.8,
        }
    }

    pub fn label(&self) -> &str {
        match self {
            Priority::H => "H",
            Priority::M => "M",
            Priority::L => "L",
        }
    }
}

impl std::fmt::Display for Priority {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.label())
    }
}

impl std::str::FromStr for Priority {
    type Err = anyhow::Error;
    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s.to_uppercase().as_str() {
            "H" | "HIGH" => Ok(Priority::H),
            "M" | "MED" | "MEDIUM" => Ok(Priority::M),
            "L" | "LOW" => Ok(Priority::L),
            _ => Err(anyhow::anyhow!("Unknown priority: {s}")),
        }
    }
}