ch-config 0.1.0

Typed configuration loading with validation and secret-file support
Documentation 
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use super::{ConfigError, Result};

pub(super) fn optional_text(field: &'static str, value: Option<&str>) -> Result<()> {
    if value.is_some_and(|value| value.trim().is_empty()) {
        return Err(ConfigError::validation(
            field,
            "must not be blank when provided",
        ));
    }

    Ok(())
}

pub(super) fn redacted(value: &str) -> &'static str {
    if value.is_empty() { "" } else { "[REDACTED]" }
}

#[cfg(test)]
mod tests {
    use super::optional_text;

    #[test]
    fn optional_text_accepts_absent_and_non_blank_values() {
        assert!(optional_text("field", None).is_ok());
        assert!(optional_text("field", Some("value")).is_ok());
    }

    #[test]
    fn optional_text_rejects_blank_values() {
        assert!(optional_text("field", Some(" \t")).is_err());
    }
}