"""D3FEND endpoints — defensive technique listings, mappings, and import trigger."""

# Import logging
import logging

# Import Optional from typing
from typing import Optional

# Import APIRouter, Depends, Query from fastapi
from fastapi import APIRouter, Depends, Query

# Import Session from sqlalchemy.orm
from sqlalchemy.orm import Session

# Import get_db from app.database
from app.database import get_db

# Import get_current_user, require_role from app.dependencies.auth
from app.dependencies.auth import get_current_user, require_role

# Import User from app.models.user
from app.models.user import User

# Import  from app.services.d3fend_import_service
from app.services.d3fend_import_service import (
    import_d3fend_mappings,
    import_d3fend_techniques,
)

# Import  from app.services.d3fend_query_service
from app.services.d3fend_query_service import (
    get_defenses_for_attack_technique,
    list_d3fend_tactics,
)

# Import  from app.services.d3fend_query_service
from app.services.d3fend_query_service import (
    list_defensive_techniques as list_defensive_techniques_svc,
)

# Assign logger = logging.getLogger(__name__)
logger = logging.getLogger(__name__)

# Assign router = APIRouter(prefix="/d3fend", tags=["d3fend"])
router = APIRouter(prefix="/d3fend", tags=["d3fend"])


# ---------------------------------------------------------------------------
# GET /d3fend — List all defensive techniques
# ---------------------------------------------------------------------------

@router.get("")
# Define function list_defensive_techniques
def list_defensive_techniques(
    # Entry: tactic
    tactic: Optional[str] = Query(None),
    # Entry: search
    search: Optional[str] = Query(None),
    # Entry: offset
    offset: int = Query(0, ge=0),
    # Entry: limit
    limit: int = Query(50, ge=1, le=200),
    # Entry: db
    db: Session = Depends(get_db),
    # Entry: current_user
    current_user: User = Depends(get_current_user),
) -> dict:
    """List all D3FEND defensive techniques with optional filters."""
    # Return list_defensive_techniques_svc(
    return list_defensive_techniques_svc(
        db, tactic=tactic, search=search, offset=offset, limit=limit
    )


# ---------------------------------------------------------------------------
# GET /d3fend/tactics — List all D3FEND tactics
# ---------------------------------------------------------------------------

@router.get("/tactics")
# Define function list_d3fend_tactics_endpoint
def list_d3fend_tactics_endpoint(
    # Entry: db
    db: Session = Depends(get_db),
    # Entry: current_user
    current_user: User = Depends(get_current_user),
) -> list:
    """Return a list of all D3FEND tactics with counts."""
    # Return list_d3fend_tactics(db)
    return list_d3fend_tactics(db)


# ---------------------------------------------------------------------------
# GET /d3fend/for-technique/{mitre_id} — Defenses for a technique
# ---------------------------------------------------------------------------

@router.get("/for-technique/{mitre_id}")
# Define function get_defenses_for_attack_technique_endpoint
def get_defenses_for_attack_technique_endpoint(
    # Entry: mitre_id
    mitre_id: str,
    # Entry: db
    db: Session = Depends(get_db),
    # Entry: current_user
    current_user: User = Depends(get_current_user),
) -> dict:
    """Get all D3FEND defensive techniques mapped to a given ATT&CK technique."""
    # Return get_defenses_for_attack_technique(db, mitre_id)
    return get_defenses_for_attack_technique(db, mitre_id)


# ---------------------------------------------------------------------------
# POST /d3fend/import — Trigger D3FEND import (admin only)
# ---------------------------------------------------------------------------

@router.post("/import")
# Define function trigger_d3fend_import
def trigger_d3fend_import(
    # Entry: db
    db: Session = Depends(get_db),
    # Entry: current_user
    current_user: User = Depends(require_role("admin")),
) -> dict:
    """Import D3FEND techniques and ATT&CK mappings. Admin only."""
    # Assign tech_result = import_d3fend_techniques(db)
    tech_result = import_d3fend_techniques(db)
    # Assign mapping_result = import_d3fend_mappings(db)
    mapping_result = import_d3fend_mappings(db)

    # Return {
    return {
        # Literal argument value
        "techniques": tech_result,
        # Literal argument value
        "mappings": mapping_result,
    }