"""
Routes API pour la gestion des playbooks.
"""

import re
from datetime import datetime, timezone

import yaml
from fastapi import APIRouter, Depends, HTTPException

from app.core.dependencies import verify_api_key
from app.schemas.ansible import PlaybookContentRequest
from app.schemas.common import LogEntry
from app.services import ansible_service, db

router = APIRouter()


@router.get("/{filename}/content")
async def get_playbook_content(
    filename: str,
    api_key_valid: bool = Depends(verify_api_key)
):
    """Récupère le contenu d'un playbook (normal ou builtin)."""
    if not filename.endswith(('.yml', '.yaml')):
        raise HTTPException(status_code=400, detail="Extension de fichier invalide. Utilisez .yml ou .yaml")
    
    # Vérifier si c'est un builtin playbook (commence par _builtin_)
    if filename.startswith("_builtin_"):
        playbook_path = ansible_service.playbooks_dir / "builtin" / filename
    else:
        playbook_path = ansible_service.playbooks_dir / filename
    
    if not playbook_path.exists():
        raise HTTPException(status_code=404, detail=f"Playbook non trouvé: {filename}")
    
    # Vérifier que le fichier est bien dans le répertoire playbooks (sécurité)
    try:
        playbook_path.resolve().relative_to(ansible_service.playbooks_dir.resolve())
    except ValueError:
        raise HTTPException(status_code=403, detail="Accès non autorisé")
    
    try:
        content = playbook_path.read_text(encoding='utf-8')
        stat = playbook_path.stat()
        return {
            "filename": filename,
            "content": content,
            "size": stat.st_size,
            "modified": datetime.fromtimestamp(stat.st_mtime, tz=timezone.utc).isoformat()
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Erreur lecture fichier: {str(e)}")


@router.put("/{filename}/content")
async def save_playbook_content(
    filename: str,
    request: PlaybookContentRequest,
    api_key_valid: bool = Depends(verify_api_key)
):
    """Sauvegarde le contenu d'un playbook."""
    if not filename.endswith(('.yml', '.yaml')):
        raise HTTPException(status_code=400, detail="Extension de fichier invalide. Utilisez .yml ou .yaml")
    
    # Valider le nom de fichier (sécurité)
    if not re.match(r'^[a-zA-Z0-9_-]+\.(yml|yaml)$', filename):
        raise HTTPException(status_code=400, detail="Nom de fichier invalide")
    
    playbook_path = ansible_service.playbooks_dir / filename
    
    # S'assurer que le répertoire existe
    ansible_service.playbooks_dir.mkdir(parents=True, exist_ok=True)
    
    # Valider le contenu YAML
    try:
        parsed = yaml.safe_load(request.content)
        if parsed is None:
            raise HTTPException(status_code=400, detail="Contenu YAML vide ou invalide")
    except yaml.YAMLError as e:
        raise HTTPException(status_code=400, detail=f"Erreur de syntaxe YAML: {str(e)}")
    
    is_new = not playbook_path.exists()
    
    try:
        playbook_path.write_text(request.content, encoding='utf-8')
        stat = playbook_path.stat()
        
        # Log l'action
        action = "créé" if is_new else "modifié"
        log_entry = LogEntry(
            id=db.get_next_id("logs"),
            timestamp=datetime.now(timezone.utc),
            level="INFO",
            message=f"Playbook {filename} {action}",
            source="playbook_editor"
        )
        db.logs.insert(0, log_entry)
        
        return {
            "success": True,
            "message": f"Playbook {filename} {'créé' if is_new else 'sauvegardé'} avec succès",
            "filename": filename,
            "size": stat.st_size,
            "modified": datetime.fromtimestamp(stat.st_mtime, tz=timezone.utc).isoformat(),
            "is_new": is_new
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Erreur sauvegarde fichier: {str(e)}")


@router.delete("/{filename}")
async def delete_playbook(
    filename: str,
    api_key_valid: bool = Depends(verify_api_key)
):
    """Supprime un playbook."""
    if not filename.endswith(('.yml', '.yaml')):
        raise HTTPException(status_code=400, detail="Extension de fichier invalide")
    
    playbook_path = ansible_service.playbooks_dir / filename
    
    if not playbook_path.exists():
        raise HTTPException(status_code=404, detail=f"Playbook non trouvé: {filename}")
    
    # Vérifier que le fichier est bien dans le répertoire playbooks (sécurité)
    try:
        playbook_path.resolve().relative_to(ansible_service.playbooks_dir.resolve())
    except ValueError:
        raise HTTPException(status_code=403, detail="Accès non autorisé")
    
    try:
        playbook_path.unlink()
        
        log_entry = LogEntry(
            id=db.get_next_id("logs"),
            timestamp=datetime.now(timezone.utc),
            level="WARN",
            message=f"Playbook {filename} supprimé",
            source="playbook_editor"
        )
        db.logs.insert(0, log_entry)
        
        return {
            "success": True,
            "message": f"Playbook {filename} supprimé avec succès"
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Erreur suppression fichier: {str(e)}")