//! License key and activation models.

use chrono::{DateTime, Utc};
use serde::Serialize;
use sqlx::FromRow;

use super::super::id_types::*;
use super::super::validated_types::*;

/// A license key issued to a buyer for software activation.
#[derive(Debug, Clone, FromRow, Serialize)]
pub struct DbLicenseKey {
    /// Database primary key.
    pub id: LicenseKeyId,
    /// Item this key grants access to.
    pub item_id: ItemId,
    /// User who owns this key.
    pub owner_id: UserId,
    /// Transaction that generated this key (if any).
    pub transaction_id: Option<TransactionId>,
    /// The key code (word-word-word-word-word format).
    pub key_code: KeyCode,
    /// Maximum allowed activations (NULL = unlimited).
    pub max_activations: Option<i32>,
    /// Current number of active activations.
    pub activation_count: i32,
    /// When the key was revoked (None = active).
    pub revoked_at: Option<DateTime<Utc>>,
    /// When the key was created.
    pub created_at: DateTime<Utc>,
}

/// A machine activation for a license key.
#[derive(Debug, Clone, FromRow, Serialize)]
pub struct DbLicenseActivation {
    /// Database primary key.
    pub id: LicenseActivationId,
    /// License key this activation belongs to.
    pub license_key_id: LicenseKeyId,
    /// Opaque machine identifier from calling software.
    pub machine_id: String,
    /// Optional friendly name for this machine.
    pub label: Option<String>,
    /// When this activation was created.
    pub activated_at: DateTime<Utc>,
    /// When this activation was last validated.
    pub last_validated_at: DateTime<Utc>,
    /// Whether this activation is currently active.
    pub is_active: bool,
}