mofa-foundation 0.1.1

//! Concrete event response plugin implementations
//!
//! This module contains specific plugin implementations for handling different
//! types of operational events.

use super::event::{Event, EventType};
use super::plugin::{BaseEventResponsePlugin, EventResponseConfig, EventResponsePlugin};
use async_trait::async_trait;
use mofa_kernel::plugin::{PluginPriority, PluginResult};
use std::collections::HashMap;
use std::sync::RwLock;

// ============================================================================
// Server Fault Response Plugin
// ============================================================================

/// Plugin for handling server fault events
///
/// Workflow:
/// 1. Attempt to automatically restart the server
/// 2. Notify the administrator about the fault
pub struct ServerFaultResponsePlugin {
    base: BaseEventResponsePlugin,
    config: RwLock<EventResponseConfig>,
}

impl ServerFaultResponsePlugin {
    /// Create a new server fault response plugin
    pub fn new() -> Self {
        let handled_event_types = vec![EventType::ServerFault];
        let workflow_steps = vec![
            "attempt_auto_restart".to_string(),
            "notify_administrator".to_string(),
        ];

        let base = BaseEventResponsePlugin::new(
            "server-fault-responder",
            "Server Fault Responder",
            handled_event_types.clone(), // Clone it to avoid move error
            workflow_steps,
        )
        .with_priority(PluginPriority::High) // Server faults should be handled quickly
        .with_max_impact_scope("instance");

        let config = RwLock::new(EventResponseConfig {
            handled_event_types,
            priority: PluginPriority::High,
            ..Default::default()
        });

        Self { base, config }
    }

    /// Attempt to restart the server automatically
    async fn attempt_auto_restart(&self, server: &str) -> Result<bool, String> {
        // Simulate server restart logic
        println!("Attempting to restart server: {}", server);
        // In real implementation, this would call an API or execute a command

        // Return success for now
        Ok(true)
    }

    /// Notify the administrator about the server fault
    async fn notify_administrator(&self, event: &Event) -> Result<(), String> {
        // Simulate notification logic (email, SMS, Slack, etc.)
        println!("Notifying administrator about server fault:");
        println!("  Event ID: {}", event.id);
        println!("  Source: {}", event.source);
        println!("  Description: {}", event.description);

        Ok(())
    }
}

#[async_trait]
impl EventResponsePlugin for ServerFaultResponsePlugin {
    fn config(&self) -> &EventResponseConfig {
        panic!("config() should not be called directly on this plugin");
    }

    async fn update_config(&mut self, config: EventResponseConfig) -> PluginResult<()> {
        // Update the local config
        {
            let mut current_config = self.config.write().unwrap();
            *current_config = config.clone();
        }
        // Update the base config
        self.base.update_config(config).await
    }

    fn can_handle(&self, event: &Event) -> bool {
        self.base.can_handle(event)
    }

    async fn handle_event(&mut self, event: Event) -> PluginResult<Event> {
        self.base.handle_event(event).await
    }

    async fn execute_workflow(&self, event: &Event) -> PluginResult<HashMap<String, String>> {
        let mut result = HashMap::new();

        // Step 1: Attempt to automatically restart the server
        let server_name = event
            .data
            .get("server")
            .and_then(|s| s.as_str())
            .unwrap_or("unknown");

        let restart_result = self.attempt_auto_restart(server_name).await;

        match restart_result {
            Ok(success) => {
                result.insert(
                    "auto_restart".to_string(),
                    if success {
                        "success".to_string()
                    } else {
                        "failed".to_string()
                    },
                );
            }
            Err(err) => {
                result.insert("auto_restart".to_string(), format!("error: {}", err));
            }
        }

        // Step 2: Notify the administrator
        match self.notify_administrator(event).await {
            Ok(_) => {
                result.insert("notify_admin".to_string(), "success".to_string());
            }
            Err(err) => {
                result.insert("notify_admin".to_string(), format!("error: {}", err));
            }
        }

        // Add workflow status
        result.insert(
            "workflow_status".to_string(),
            "server_fault_workflow_completed".to_string(),
        );

        Ok(result)
    }
}

#[async_trait]
impl mofa_kernel::plugin::AgentPlugin for ServerFaultResponsePlugin {
    fn metadata(&self) -> &mofa_kernel::plugin::PluginMetadata {
        self.base.metadata()
    }

    fn state(&self) -> mofa_kernel::plugin::PluginState {
        self.base.state()
    }

    async fn load(
        &mut self,
        ctx: &mofa_kernel::plugin::PluginContext,
    ) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.load(ctx).await
    }

    async fn init_plugin(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.init_plugin().await
    }

    async fn start(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.start().await
    }

    async fn stop(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.stop().await
    }

    async fn unload(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.unload().await
    }

    async fn execute(&mut self, input: String) -> mofa_kernel::plugin::PluginResult<String> {
        self.base.execute(input).await
    }

    fn as_any(&self) -> &dyn std::any::Any {
        self
    }

    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
        self
    }

    fn into_any(self: Box<Self>) -> Box<dyn std::any::Any> {
        self
    }
}

impl From<ServerFaultResponsePlugin> for Box<dyn EventResponsePlugin> {
    fn from(plugin: ServerFaultResponsePlugin) -> Self {
        Box::new(plugin)
    }
}

impl From<ServerFaultResponsePlugin> for Box<dyn mofa_kernel::plugin::AgentPlugin> {
    fn from(plugin: ServerFaultResponsePlugin) -> Self {
        Box::new(plugin)
    }
}

// ============================================================================
// Network Attack Response Plugin
// ============================================================================

/// Plugin for handling network attack events
///
/// Workflow:
/// 1. Block the attacking IP address
/// 2. Analyze the attack pattern
/// 3. Notify the security team
pub struct NetworkAttackResponsePlugin {
    base: BaseEventResponsePlugin,
    config: RwLock<EventResponseConfig>,
}

impl NetworkAttackResponsePlugin {
    /// Create a new network attack response plugin
    pub fn new() -> Self {
        let handled_event_types = vec![EventType::NetworkAttack];
        let workflow_steps = vec![
            "block_attacking_ip".to_string(),
            "analyze_attack_pattern".to_string(),
            "notify_security_team".to_string(),
        ];

        let base = BaseEventResponsePlugin::new(
            "network-attack-responder",
            "Network Attack Responder",
            handled_event_types.clone(), // Clone it to avoid move error
            workflow_steps,
        )
        .with_priority(PluginPriority::Critical) // Network attacks require immediate action
        .with_max_impact_scope("system");

        let config = RwLock::new(EventResponseConfig {
            handled_event_types,
            priority: PluginPriority::Critical,
            ..Default::default()
        });

        Self { base, config }
    }

    /// Block the attacking IP address
    async fn block_attacking_ip(&self, ip: &str) -> Result<bool, String> {
        // Simulate IP blocking logic
        println!("Blocking attacking IP: {}", ip);
        // In real implementation, this would update firewall rules, etc.

        Ok(true)
    }

    /// Analyze the attack pattern
    async fn analyze_attack_pattern(&self, event: &Event) -> Result<String, String> {
        // Simulate attack analysis
        println!("Analyzing attack pattern for event: {}", event.id);

        Ok("ddos_attack".to_string()) // Dummy analysis result
    }

    /// Notify the security team about the attack
    async fn notify_security_team(&self, event: &Event, attack_type: &str) -> Result<(), String> {
        // Simulate security notification
        println!("Notifying security team about {} attack:", attack_type);
        println!("  Event ID: {}", event.id);
        println!("  Source IP: {:?}", event.data.get("source_ip"));

        Ok(())
    }
}

#[async_trait]
impl EventResponsePlugin for NetworkAttackResponsePlugin {
    fn config(&self) -> &EventResponseConfig {
        panic!("config() should not be called directly on this plugin");
    }

    async fn update_config(&mut self, config: EventResponseConfig) -> PluginResult<()> {
        // Update the local config
        {
            let mut current_config = self.config.write().unwrap();
            *current_config = config.clone();
        }
        // Update the base config
        self.base.update_config(config).await
    }

    fn can_handle(&self, event: &Event) -> bool {
        self.base.can_handle(event)
    }

    async fn handle_event(&mut self, event: Event) -> PluginResult<Event> {
        self.base.handle_event(event).await
    }

    async fn execute_workflow(&self, event: &Event) -> PluginResult<HashMap<String, String>> {
        let mut result = HashMap::new();

        // Step 1: Block attacking IP
        let source_ip = event
            .data
            .get("source_ip")
            .and_then(|ip| ip.as_str())
            .unwrap_or("unknown");

        let block_result = self.block_attacking_ip(source_ip).await;
        match block_result {
            Ok(success) => {
                result.insert(
                    "block_ip".to_string(),
                    if success {
                        "success".to_string()
                    } else {
                        "failed".to_string()
                    },
                );
            }
            Err(err) => {
                result.insert("block_ip".to_string(), format!("error: {}", err));
            }
        }

        // Step 2: Analyze attack pattern
        let analysis_result = self.analyze_attack_pattern(event).await;
        let attack_type = match analysis_result {
            Ok(attack) => {
                result.insert("attack_analysis".to_string(), attack.clone());
                attack
            }
            Err(err) => {
                result.insert("attack_analysis".to_string(), format!("error: {}", err));
                "unknown".to_string()
            }
        };

        // Step 3: Notify security team
        if let Err(err) = self.notify_security_team(event, &attack_type).await {
            result.insert("notify_security".to_string(), format!("error: {}", err));
        } else {
            result.insert("notify_security".to_string(), "success".to_string());
        }

        // Add workflow status
        result.insert(
            "workflow_status".to_string(),
            "network_attack_workflow_completed".to_string(),
        );

        Ok(result)
    }
}

#[async_trait]
impl mofa_kernel::plugin::AgentPlugin for NetworkAttackResponsePlugin {
    fn metadata(&self) -> &mofa_kernel::plugin::PluginMetadata {
        self.base.metadata()
    }

    fn state(&self) -> mofa_kernel::plugin::PluginState {
        self.base.state()
    }

    async fn load(
        &mut self,
        ctx: &mofa_kernel::plugin::PluginContext,
    ) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.load(ctx).await
    }

    async fn init_plugin(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.init_plugin().await
    }

    async fn start(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.start().await
    }

    async fn stop(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.stop().await
    }

    async fn unload(&mut self) -> mofa_kernel::plugin::PluginResult<()> {
        self.base.unload().await
    }

    async fn execute(&mut self, input: String) -> mofa_kernel::plugin::PluginResult<String> {
        self.base.execute(input).await
    }

    fn as_any(&self) -> &dyn std::any::Any {
        self
    }

    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
        self
    }

    fn into_any(self: Box<Self>) -> Box<dyn std::any::Any> {
        self
    }
}

impl From<NetworkAttackResponsePlugin> for Box<dyn EventResponsePlugin> {
    fn from(plugin: NetworkAttackResponsePlugin) -> Self {
        Box::new(plugin)
    }
}

impl From<NetworkAttackResponsePlugin> for Box<dyn mofa_kernel::plugin::AgentPlugin> {
    fn from(plugin: NetworkAttackResponsePlugin) -> Self {
        Box::new(plugin)
    }
}