//! Persisted, restart-only runtime-observability policy.

use kaptan_config::ConfigValidate;

/// Candidate-only observability policy. It deliberately controls only optional
/// detail; error-level records are never suppressible configuration fields.
#[derive(Clone, Copy, ConfigValidate)]
pub(super) struct ObservabilityCandidate {
    #[config(
        id = 24,
        key = "observability.maximum_log_level",
        unit = "mav_severity",
        default = 6,
        range(min = 3, max = 7)
    )]
    pub(super) maximum_log_level: u32,
}

/// Immutable boot-active best-effort observability policy.
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub struct ObservabilitySettings {
    maximum_log_level: u32,
}

impl ObservabilitySettings {
    pub(crate) const fn new(maximum_log_level: u32) -> Self {
        Self { maximum_log_level }
    }

    /// Maximum best-effort MAVLink severity: Error (3) through Debug (7).
    /// This never filters error-level records.
    pub const fn maximum_log_level(self) -> u32 {
        self.maximum_log_level
    }
}