SolarEnergy/central_backend/src/constants.rs

use std::time::Duration;

/// Name of the cookie that contains session information
pub const SESSION_COOKIE_NAME: &str = "X-session-cookie";

/// Energy refresh operations interval
pub const ENERGY_REFRESH_INTERVAL: Duration = Duration::from_secs(30);

/// Fallback value to use if production cannot be fetched
pub const FALLBACK_PRODUCTION_VALUE: i32 = 5000;

/// Maximum session duration after inactivity, in seconds
pub const MAX_INACTIVITY_DURATION: u64 = 3600;

/// Maximum session duration (1 day)
pub const MAX_SESSION_DURATION: u64 = 3600 * 24;

/// List of routes that do not require authentication
pub const ROUTES_WITHOUT_AUTH: [&str; 2] =
    ["/web_api/server/config", "/web_api/auth/password_auth"];

#[derive(serde::Serialize)]
pub struct SizeConstraint {
    /// Minimal string length
    min: usize,
    /// Maximal string length
    max: usize,
}

impl SizeConstraint {
    pub fn new(min: usize, max: usize) -> Self {
        Self { min, max }
    }

    pub fn validate(&self, val: &str) -> bool {
        let len = val.trim().len();
        len >= self.min && len <= self.max
    }

    pub fn validate_usize(&self, val: usize) -> bool {
        val >= self.min && val <= self.max
    }
}

/// Backend static constraints
#[derive(serde::Serialize)]
pub struct StaticConstraints {
    /// Device name constraint
    pub dev_name_len: SizeConstraint,
    /// Device description constraint
    pub dev_description_len: SizeConstraint,
    /// Relay name constraint
    pub relay_name_len: SizeConstraint,
    /// Relay priority constraint
    pub relay_priority: SizeConstraint,
    /// Relay consumption constraint
    pub relay_consumption: SizeConstraint,
    /// Relay minimal uptime
    pub relay_minimal_uptime: SizeConstraint,
    /// Relay minimal downtime
    pub relay_minimal_downtime: SizeConstraint,
    /// Relay daily minimal uptime
    pub relay_daily_minimal_runtime: SizeConstraint,
}

impl Default for StaticConstraints {
    fn default() -> Self {
        Self {
            dev_name_len: SizeConstraint::new(1, 50),
            dev_description_len: SizeConstraint::new(0, 100),
            relay_name_len: SizeConstraint::new(1, 100),
            relay_priority: SizeConstraint::new(0, 999999),
            relay_consumption: SizeConstraint::new(0, 999999),
            relay_minimal_uptime: SizeConstraint::new(0, 9999999),
            relay_minimal_downtime: SizeConstraint::new(0, 9999999),
            relay_daily_minimal_runtime: SizeConstraint::new(0, 3600 * 24),
        }
    }
}