from flask import Blueprint, request, jsonify
from flask_jwt_extended import jwt_required
from flasgger.utils import swag_from
from models.cameras import Cameras
from models.service import Service
from models.service_roles import ServiceRole
from models.user import db

camera_bp = Blueprint('camera', __name__, url_prefix='/camera')

@camera_bp.route('/', methods=['POST'])
@jwt_required()
@swag_from('../docs/camera/create.yml')
def create_camera():
    data = request.get_json()
    service_id = data.get('service_id')
    ambiente_id = data.get('ambiente_id')
    service_role_id = data.get('service_role_id')
    name = data.get('name')
    status = data.get('status')
    description = data.get('description')
    url = data.get('url')
    service_instance_id = data.get('service_instance_id')

    # Verifica se o serviço existe
    #service = Service.query.get(service_id)
    #if not service:
    #    return jsonify({'error': 'Serviço não encontrado'}), 404

    # Verifica se a Camera já existe com o mesmo nome para o serviço
    existing_role = Cameras.query.filter_by(service_id=service_id, name=name).first()
    if existing_role:
        return jsonify({'error': 'Camera já existe para este serviço'}), 400

    # Cria um nova camera
    camera = Cameras(
        service_id=service_id,
        ambiente_id=ambiente_id,
        service_role_id = service_role_id,
        name=name,
        description=description,
        status=status,
        url=url,
        service_instance_id = service_instance_id,

    )

    # Adiciona e comita no banco de dados
    db.session.add(camera)
    db.session.commit()

    return jsonify({'message': 'Camera criada com sucesso', 'camera_id': camera.id}), 201

@camera_bp.route('/', methods=['GET'])
@jwt_required()
@swag_from('../docs/camera/list.yml')
def list_service_roles():
    page = request.args.get('page', 1, type=int)
    per_page = request.args.get('per_page', 10, type=int)

    pagination = Cameras.query.paginate(page=page, per_page=per_page, error_out=False)
    cameras = pagination.items

    return jsonify({
        'cameras': [
            {
                'id': camera.id,
                'name': camera.name,
                'description': camera.description,
                'service_id': camera.service_id,
                'ambiente_id': camera.ambiente_id,
                'service_role_id': camera.service_role_id,
                'status': camera.status,
                'url':camera.url,
                'service_instance_id':camera.service_instance_id
            } for camera in cameras
        ],
        'total': pagination.total,
        'page': pagination.page,
        'per_page': pagination.per_page
    }), 200

@camera_bp.route('/<int:camera_id>', methods=['GET'])
@jwt_required()
@swag_from('../docs/camera/get.yml')
def get_service_role(camera_id):
    camera = Cameras.query.get(camera_id)
    if not camera:
        return jsonify({'error': 'Camera não encontrada'}), 404
    
    return jsonify({
        'id': camera.id,
        'name': camera.name,
        'description': camera.description,
        'service_id': camera.service_id,
        'ambiente_id': camera.ambiente_id,
        'service_role_id': camera.service_role_id,
        'status': camera.status,
        'url':camera.url,
        'service_instance_id' : camera.service_instance_id
    }), 200

@camera_bp.route('/<int:camera_id>', methods=['PUT'])
@jwt_required()
@swag_from('../docs/camera/update.yml')
def update_camera(camera_id):
    data = request.get_json()
    name = data.get('name')
    description = data.get('description')
    status=data.get('status')
    url = data.get('url')
    ambiente_id = data.get('ambiente_id')
    service_instance_id = data.get('service_instance_id')

    camera = Cameras.query.get(camera_id)
    if not camera:
        return jsonify({'error': 'Camera não encontrada'}), 404

    # Atualiza os campos fornecidos
    if name:
        camera.name = name
    if description:
        camera.description = description
    if status:
        camera.status = status
    if url :
        camera.url = url
    if ambiente_id :
        camera.ambiente_id = ambiente_id
    if service_instance_id:
        camera.service_instance_id = service_instance_id

    db.session.commit()

    return jsonify({'message': 'Camera atualizada com sucesso', 'camera_id': camera.id}), 200

@camera_bp.route('/<int:camera_id>', methods=['DELETE'])
@jwt_required()
@swag_from('../docs/camera/delete.yml')
def delete_camera(camera_id):
    camera = Cameras.query.get(camera_id)
    if not camera:
        return jsonify({'error': 'Camera não encontrada'}), 404

    db.session.delete(camera)
    db.session.commit()

    return jsonify({'message': 'Camera deletada com sucesso'}), 200