ai-agent 0.13.4

Idiomatic agent sdk inspired by the claude code source leak
Documentation 
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#![allow(dead_code)]

#[derive(Debug, Clone)]
pub struct EnvVarValidationResult {
    pub effective: i32,
    pub status: ValidationStatus,
    pub message: Option<String>,
}

#[derive(Debug, Clone)]
pub enum ValidationStatus {
    Valid,
    Capped,
    Invalid,
}

pub fn validate_bounded_int_env_var(
    name: &str,
    value: Option<&str>,
    default_value: i32,
    upper_limit: i32,
) -> EnvVarValidationResult {
    let value = match value {
        Some(v) => v,
        None => {
            return EnvVarValidationResult {
                effective: default_value,
                status: ValidationStatus::Valid,
                message: None,
            }
        }
    };

    let parsed = match value.parse::<i32>() {
        Ok(p) => p,
        Err(_) => {
            return EnvVarValidationResult {
                effective: default_value,
                status: ValidationStatus::Invalid,
                message: Some(format!(
                    "Invalid value \"{}\" (using default: {})",
                    value, default_value
                )),
            }
        }
    };

    if parsed <= 0 {
        return EnvVarValidationResult {
            effective: default_value,
            status: ValidationStatus::Invalid,
            message: Some(format!(
                "Invalid value \"{}\" (using default: {})",
                value, default_value
            )),
        };
    }

    if parsed > upper_limit {
        return EnvVarValidationResult {
            effective: upper_limit,
            status: ValidationStatus::Capped,
            message: Some(format!("Capped from {} to {}", parsed, upper_limit)),
        };
    }

    EnvVarValidationResult {
        effective: parsed,
        status: ValidationStatus::Valid,
        message: None,
    }
}

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

    #[test]
    fn test_validate_bounded_int_env_var_default() {
        let result = validate_bounded_int_env_var("TEST", None, 10, 100);
        assert_eq!(result.effective, 10);
        assert!(matches!(result.status, ValidationStatus::Valid));
    }

    #[test]
    fn test_validate_bounded_int_env_var_capped() {
        let result = validate_bounded_int_env_var("TEST", Some("200"), 10, 100);
        assert_eq!(result.effective, 100);
        assert!(matches!(result.status, ValidationStatus::Capped));
    }

    #[test]
    fn test_validate_bounded_int_env_var_invalid() {
        let result = validate_bounded_int_env_var("TEST", Some("abc"), 10, 100);
        assert_eq!(result.effective, 10);
        assert!(matches!(result.status, ValidationStatus::Invalid));
    }
}