//! # Docker Module
//!
//! This module provides Docker integration for WatcherAgent, including container enumeration, statistics, and lifecycle management.
//!
//! ## Responsibilities
//! - **Container Management:** Lists, inspects, and manages Docker containers relevant to the agent.
//! - **Statistics Aggregation:** Collects network and CPU statistics for all managed containers.
//! - **Lifecycle Operations:** Supports container restart and ID lookup for agent self-management.
//!
pub mod container;
pub mod serverclientcomm;

use std::error::Error;
use crate::models::DockerContainer;


/// Aggregated Docker statistics for all managed containers.
///
/// # Fields
/// - `number`: Number of running containers (optional)
/// - `net_in_total`: Total network receive rate in **bytes per second (B/s)** (optional)
/// - `net_out_total`: Total network transmit rate in **bytes per second (B/s)** (optional)
/// - `dockers`: List of [`DockerContainer`] statistics (optional)
#[derive(Debug, Clone)]
pub struct DockerInfo {
    pub number: Option<u16>,
    pub net_in_total: Option<f64>,
    pub net_out_total: Option<f64>,
    pub dockers: Option<Vec<DockerContainer>>,
}


impl DockerInfo {
    /// Collects Docker statistics for all managed containers.
    ///
    /// # Returns
    /// * `Result<DockerInfo, Box<dyn Error + Send + Sync>>` - Aggregated Docker statistics or error if collection fails.
    pub async fn collect() -> Result<Self, Box<dyn Error + Send + Sync>> {
        Ok(Self { number: None, net_in_total: None, net_out_total: None, dockers: None })
    }
}


impl DockerContainer {
    /*
    /// Restarts the specified Docker container by ID.
    ///
    /// # Arguments
    /// * `docker` - Reference to a Bollard Docker client
    ///
    /// # Returns
    /// * `Result<(), Box<dyn Error + Send + Sync>>` - Ok if restarted successfully, error otherwise.
    pub async fn restart_container(docker: &Docker) -> Result<(), Box<dyn Error + Send + Sync>> {
        // ...existing code...
    }
    */

    /// Returns the container ID for a given [`DockerContainer`].
    ///
    /// # Arguments
    /// * `container` - Reference to a [`DockerContainer`]
    ///
    /// # Returns
    /// * `Result<u32, Box<dyn Error + Send + Sync>>` - Container ID as integer.
    pub async fn get_docker_container_id(container: DockerContainer) -> Result<u32, Box<dyn Error + Send + Sync>> {
        Ok(container.ID)
    }

    /// Returns the image name for a given [`DockerContainer`].
    ///
    /// # Arguments
    /// * `container` - Reference to a [`DockerContainer`]
    ///
    /// # Returns
    /// * `Result<String, Box<dyn Error + Send + Sync>>` - Image name as string.
    pub async fn get_docker_container_image(container: DockerContainer) -> Result<String, Box<dyn Error + Send + Sync>> {
        Ok(container.image)
    }
}