from flask import Blueprint, request, jsonify
from flask_jwt_extended import jwt_required
from models.group import Group, db

group_bp = Blueprint('group', __name__, url_prefix='/groups')

@group_bp.route('/', methods=['POST'])
@jwt_required()
def create_group():
    data = request.get_json()
    name = data.get('name')

    if Group.query.filter_by(name=name).first():
        return jsonify({'error': 'Grupo já existe'}), 400

    group = Group(name=name)
    db.session.add(group)
    db.session.commit()
    return jsonify({'message': 'Grupo criado com sucesso'}), 201

@group_bp.route('/', methods=['GET'])
@jwt_required()
def list_groups():
    groups = Group.query.all()
    return jsonify([{'id': g.id, 'name': g.name} for g in groups]), 200

@group_bp.route('/<int:group_id>', methods=['PUT'])
@jwt_required()
def update_group(group_id):
    data = request.get_json()
    group = Group.query.get_or_404(group_id)

    group.name = data.get('name', group.name)
    db.session.commit()
    return jsonify({'message': 'Grupo atualizado com sucesso'}), 200

@group_bp.route('/<int:group_id>', methods=['DELETE'])
@jwt_required()
def delete_group(group_id):
    group = Group.query.get_or_404(group_id)
    db.session.delete(group)
    db.session.commit()
    return jsonify({'message': 'Grupo excluído com sucesso'}), 200