"""
backend/routes/sentinel_routes.py
§2.18 — Sentinel: Credential Capture, USB Threat Monitor, OSINT Threat Intelligence
"""
from fastapi import HTTPException, APIRouter
from pydantic import BaseModel
from typing import List

router = APIRouter()


class ThreatRequest(BaseModel):
    target: str
    threat_type: str = "general"   # general | network | credential | physical


class ThreatReport(BaseModel):
    threat_id: str
    severity: str        # LOW | MEDIUM | HIGH | CRITICAL
    description: str
    mitigations: List[str] = []


@router.get("/status")
async def sentinel_status():
    """Return live Sentinel threat-monitoring status."""
    from backend.services.usb_monitor import get_active_usb_drives
    try:
        drives = get_active_usb_drives()
        return {
            "status": "active",
            "usb_threat_monitor": "online",
            "active_usb_devices": len(drives),
            "credential_capture": "active",
            "osint_engine": "ready",
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


@router.post("/threat_model")
async def generate_threat_model(req: ThreatRequest):
    """
    Generates a structured threat model for the given target.
    Uses the OSINT/Internet layer for live reconnaissance.
    """
    if not req.target:
        raise HTTPException(status_code=400, detail="target is required")
    try:
        from backend.tools.web_search_tools import search_web
        findings = await search_web(
            f'"{req.target}" vulnerability CVE threat {req.threat_type}',
            num_results=5
        )
        return {
            "status": "ok",
            "target": req.target,
            "threat_type": req.threat_type,
            "threat_vectors": findings,
            "recommendation": "Deploy countermeasures. Monitor via Sentinel dashboard.",
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


@router.get("/credentials/captured")
async def get_captured_credentials():
    """Return credentials captured by the Sentinel CredentialCapture service."""
    from backend.services.usb_monitor import get_db_path
    import sqlite3
    try:
        db_path = get_db_path()
        with sqlite3.connect(db_path) as conn:
            conn.execute('PRAGMA journal_mode=WAL')
            cursor = conn.cursor()
            cursor.execute(
                "SELECT id, site, username, captured_at, source FROM vault_credentials ORDER BY captured_at DESC"
            )
            rows = cursor.fetchall()
        return [
            {"id": r[0], "site": r[1], "username": r[2], "captured_at": r[3], "source": r[4]}
            for r in rows
        ]
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


@router.get("/network_scan")
async def network_scan():
    """
    Run a local network scan using psutil to identify active connections.
    Maps to the 'Battlefield Intel' system capability.
    """
    import psutil
    try:
        connections = psutil.net_connections(kind="inet")
        active = [
            {
                "local_addr": f"{c.laddr.ip}:{c.laddr.port}" if c.laddr else None,
                "remote_addr": f"{c.raddr.ip}:{c.raddr.port}" if c.raddr else None,
                "status": c.status,
                "pid": c.pid,
            }
            for c in connections
            if c.status == "ESTABLISHED"
        ]
        return {"status": "ok", "active_connections": len(active), "connections": active}
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))