module.exports = function(Self) {
    Self.validate('default', isEnabled, {message: 'No se puede poner predeterminado un consignatario desactivado'});
    function isEnabled(err) {
        if (!this.isEnabled && this.isDefaultAddress) err();
    }

    Self.beforeRemote('create', function(ctx, modelInstance, next) {
        var data = ctx.req.body;
        create(data, next);
    });

    function create(data, next) {
        if (data.isDefaultAddress) {
            removeAllDefault(data.client, next);
        } else {
            next();
        }
    }

    Self.beforeRemote('prototype.patchAttributes', function(ctx, modelInstance, next) {
        let newData = ctx.req.body;
        newData.id = ctx.req.params.id;
        getAddress(ctx, newData, next);
    });

    Self.beforeRemote('findById', function(ctx, modelInstance, next) {
        ctx.args.filter = {
            "include": {
                "relation": "province",
                "scope": {
                    "fields": ["id", "name"]
                }
            }
        };
        next();
    });

    function getAddress(ctx, newData, next) {
        Self.findOne({where: {id: newData.id}}, (_, oldData) => {
            if (oldData)
                callbackGetAddress(ctx, newData, oldData, next);
        });
    }

    function callbackGetAddress(ctx, newData, oldData, next) {
        if (newData.isDefaultAddress) {
            removeAllDefault(oldData.client, next);
        } else if (oldData.isDefaultAddress && newData.hasOwnProperty('isDefaultAddress') && !newData.isDefaultAddress) {
            next(generateErrorDefaultAddress());
        } else
            next();
    }

    function getData(ctx) {
        if (ctx.data)
            return ctx.data;
        else
            return ctx.instance;
    }

    function removeAllDefault(client, next) {
        Self.updateAll({clientFk: client.id, isDefaultAddress: true}, {isDefaultAddress: false}, next); 
    }

    function generateErrorDefaultAddress() {
        var error = new Error();
        error.message = "No se puede desmarcar el consignatario predeterminado";
        error.status = 500;
        return error;
    }
};