module.exports = function(Client) {
    //validations
    Client.validatesUniquenessOf('name', {message: 'el nombre debe ser unico'});
    Client.validatesUniquenessOf('fi', {message: 'el nif/cif debe ser unico'});

    Client.validate('payMethod',hasCC,{message: 'Introduzca el iban del cliente'});
    function hasCC(err) {
        if (this.payMethod == 2 && !this.iban)  err();
    };

    Client.validate('payMethod',hasSalesMan,{message: 'No se puede cambiar la forma de pago si no hay comercial asignado'});
    function hasSalesMan(err) {
        if (this.payMethod && !this.salesPerson)  err();
    };

    Client.remoteMethod('activate', 
    {
        description: 'Activate or deactive client',
        accepts: {arg: 'id', type: 'number', required: true, http: function(ctx) {
              var id = ctx && ctx.req && ctx.req.params.id
              return id;
            }
         },
        returns: {
            arg: 'active', 
            type: 'boolean'
        },
        http: {
            path: '/:id/activate', verb: 'put'
        }
    });
    
    Client.activate = function(id, cb){
        Client.findById(id, function(err, client) {
            if (!err) {
                Client.update({id: client.id}, {active: !client.active}); 
                cb(null, !client.active);
            }
        }) 
    };

    // Hooks
    Client.observe('before save', function (ctx, next) { 
        if (ctx.instance) {
            if (!ctx.instance.dueDay){
                ctx.instance.dueDay = 5;
            }
            next();
        } else {
             Client.findById(ctx.where.id,
                function(err, item) {
                    if (!err) {
                        if (item.payMethod != ctx.data.payMethod && item.dueDay == ctx.data.dueDay) {
                            ctx.data.dueDay = 5;
                        }
                    }
                    next();
                }
            );
        }
    });
};