module.exports = function(Client) {
    // Validations

    Client.validatesUniquenessOf('name', {message: 'El nombre debe ser único'});
    Client.validatesUniquenessOf('fi', {message: 'El NIF/CIF debe ser único'});
    Client.validatesPresenceOf('socialName', {message: 'Debe especificarse la razón social'});
    Client.validatesFormatOf('postcode', {allowNull: true, with: /^\d+$/, message: 'El código postal solo debe contener números'});
    Client.validatesLengthOf('postcode', {allowNull: true, min: 3, max: 10});
    Client.validatesFormatOf('email', {allowNull: true, with: /^[\w|\.|\-]+@\w[\w|\.|\-]*\w$/, message: 'Correo electrónico inválido'});

    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();
    };

    // 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();
                }
            );
        }
    });

    // Methods

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

    // Basic filter

    Client.installMethod('filter', filterClients);
    function filterClients(p) {
        return {
            where: {
                id: p.id,
                name: {regexp: p.name},
                cif: p.cif,
                socialName: {regexp: p.socialName},
                city: {regexp: p.city},
                postcode: p.postcode,
                email: {regexp: p.email},
                phone: p.phone
            },
            skip: (p.page - 1) * p.size,
            limit: p.size
        };
    }

    // Client addresses

    Client.remoteMethod('addressesList', {
        description: 'List items using a filter',
        accessType: 'READ',
        accepts: [
            {
                arg: 'id',
                type: 'string',
                required: true,
                description: 'Model id',
                http: {source: 'path'}
            },
            {
                arg: 'filter',
                type: 'object',
                required: true,
                description: 'Filter defining where',
                http: function(ctx) {
                    return ctx.req.query;
                }
            }
        ],
        returns: {
            arg: 'data', 
            type: ['Address'],
            root: true
        },
        http: {
            path: `/:id/addressesList`,
            verb: 'get'
        }
    });

    Client.addressesList = function(id, p, cb) {
        let filter = {
            where: {
                client: id,
            },
            skip: (p.page - 1) * p.size,
            limit: p.size
        };

        Client.app.models.Address.find(filter, function(err, instances) {
            if(!err) {
                cb(null, instances);
            }
        })
    };
};