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

    require('../scopes/client/card.js')(Client);
    require('../scopes/client/activate.js')(Client);
    require('../scopes/client/addresses.js')(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', {
        message: 'El código postal solo debe contener números',
        allowNull: true,
        with: /^\d+$/
    });
    Client.validatesFormatOf('email', {
        message: 'Correo electrónico inválido',
        allowNull: true,
        with: /^[\w|\.|\-]+@\w[\w|\.|\-]*\w$/
    });
    Client.validatesLengthOf('postcode', {
        allowNull: true,
        min: 3, max: 10
    });
    Client.validatesLengthOf('iban', {
        allowNull: true,
        allowBlank: true,
        max: 23
    });

    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.validateAsync('payMethodFk', hasIban, {
        message: 'El método de pago seleccionado requiere que se especifique el IBAN'
    });
    function hasIban(err, done) {
        let iban = this.iban;
        let PayMethod = Client.app.models.PayMethod;
        PayMethod.findById(this.payMethodFk, function (_, instance){
            if (instance.ibanRequired && !iban)
                err();
            done();
        });
    };

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

    // 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
        };
    }
};