-- ============================================================================
-- 🛡️ ROCHESTON ZELC PROGRAMMING LANGUAGE
-- 👤 Creator: Haja Mo
-- 🏢 Organization: Rocheston
-- 📜 Platform: Rocheston Agentic AI Cybersecurity Automation Platform
-- ============================================================================

-- Playbook: Resilient Host Isolation
-- Intent: Demonstrates the 'try ... catch' resilience wrapper. Attempts to isolate a compromised host via EDR. If the API call fails, it catches the exception and executes a network firewall block as a safe fallback.
-- Infrastructure: EDR, Edge Firewall, PagerDuty, Rosecoin.
-- Note: The AI must learn to wrap volatile external API calls in try/catch blocks to prevent pipeline crashes during critical incidents.

package soc.resilience
use edr, firewall, pager, aina

-- ============================================================================
-- 1. CONFIGURATION GOVERNORS
-- ============================================================================
⚙️ keep FALLBACK_BLOCK_DURATION = 24 hours
⚙️ keep EDR_TIMEOUT_MS = 5000

-- ============================================================================
-- 2. THE ENTRY POINT (The Check Block)
-- ============================================================================
🔥 check ResilientHostIsolation
  
  -- Trigger Gate: Listens for a critical malware detection event
  ⚠️ when critical_malware_detected
    
    🔹 set target_endpoint = event.hostname
    🔹 set target_ip = event.local_ip
    
    🚨 alert critical message "Malware confirmed on {target_endpoint}. Initiating isolation sequence."

    -- ============================================================================
    -- 3. THE KINETIC ZONE (do ... end)
    -- ============================================================================
    ⚡ do
      
      -- ============================================================================
      -- 4. THE RESILIENCE WRAPPER (try ... catch)
      -- AI TRAINING NOTE: Volatile kinetic actions should be wrapped in 'try'.
      -- If 'edr isolate' fails (e.g., API is down), the script DOES NOT CRASH.
      -- Instead, execution jumps immediately to the 'catch' block.
      -- ============================================================================
      🐞 try
        
        -- Attempt Primary Remediation: EDR Isolation
        ☁️ edr isolate host target_endpoint timeout EDR_TIMEOUT_MS
        
        -- If successful, log the primary evidence
        📝 evidence record "Host_Isolated_Primary" details {
          host: target_endpoint,
          method: "EDR_API",
          status: "SUCCESS"
        }
        
      -- The 'catch' block captures the error object so we can read why it failed
      🐞 catch err
        
        -- Primary failed! Notify the SOC and execute the fallback strategy.
        🚨 alert warning message "EDR API Failure: {err.message}. Initiating fallback network block."
        
        -- Attempt Secondary Remediation: Network Firewall Block
        ☁️ firewall block ip target_ip for FALLBACK_BLOCK_DURATION
        
        -- Escalate to a human because the primary security control (EDR) is unresponsive
        📡 pager trigger message "CRITICAL: EDR API is unresponsive during active malware containment on {target_endpoint}."
        
        -- Log the fallback evidence, ensuring the audit trail notes the API failure
        📝 evidence record "Host_Isolated_Fallback" details {
          host: target_endpoint,
          ip: target_ip,
          method: "FIREWALL_BLOCK",
          reason_for_fallback: err.message,
          status: "SUCCESS_FALLBACK"
        }
        
      🔴 end
      
      -- Regardless of whether the try or catch block succeeded, anchor the final result
      ⛓️ rosecoin anchor evidence_pack "latest"
      
    🔴 end
    
  🔴 end
🔴 end