/**
 * @fileoverview
 * Javascript main code.
 */
var jqValidator  = jqValidator || {};

Validator.prototype.and = function(that) {
    return new And(this,that);
};

Validator.prototype.or = function(that) {
    return new Or(this,that);
};

function range(lb,ub) {
    return new ValidateRange(lb,ub);
};

function not(expr) {
    return new Not(expr);
};

function match(regexp) {
    return new ValidateRegex(regexp);
};

$.fn.checkWith = function(rules, errorslist) {
    this.submit(function() {
            var values = {};
            var form  = {};
	    var input = $(this).serializeArray();
	    input.forEach(function(element,index)  {
                    form[element.name] = new Field(element.name,values);
                    values[element.name] = element.value;
                });
            rules(form);
            var errors = input.map(function(elem,index) {
				 return form[elem.name].validate(values);
			     })
			.filter(function(res) { return !res.result; })
			.map(function(result) {
				 $("<li></li>").append(result.message).appendTo(errorslist);
				 return result;
			     });
            return errors.length == 0;
    });
    return this;
};

var alwaysTrue = {isOk:function() { return {result:true}; }};

function Field(name,values) {
    this.name = name;
    this.validator = alwaysTrue;
    this.values = values || {};
};

Field.prototype = {
    get value() {
        return this.values[this.name];
    },

    validate: function(values) {
        this.values = values || {};
        return this.validator.isOk(this.value);
    },

    must: function(rule) {
        this.validator = rule;
    }
};