/*@
Ox.Editable <f> Editable element
    () ->              <f> Input Element
    (options) ->       <f> Input Element
    (options, self) -> <f> Input Element
    options <o> Options object
        editing <b|false> If true, loads in editing state
        format <f|null> Format function
            (value) -> <s> Formatted value
            value <s> Input value
    self <o> Shared private variable
@*/
Ox.Editable = function(options, self) {

    self = self || {};
    var that = Ox.Element({
            element: '<div>',
            tooltip: options.tooltip
        }, self)
        .defaults({
            clickLink: null,
            editable: true,
            editing: false,
            format: null,
            height: 0,
            placeholder: '',
            tooltip: '',
            value: '',
            width: 0,
            type: 'input'
        })
        .options(options || {})
        .addClass('OxEditableElement')
        .bind({
            click: function() {
                return false;
            }
        })
        .bindEvent({
            doubleclick: edit,
            singleclick: function(e) {
                if ($(e.target).is('a')) {
                    if (self.options.clickLink) {
                        self.options.clickLink(e);
                    } else {
                        document.location.href = $(e.target).attr('href');
                    }
                }
            }
        });

    self.options.value = self.options.value.toString();

    self.$value = Ox.Element(self.options.type == 'input' ? '<span>' : '<div>')
        .addClass('OxValue')
        .css(self.options.type == 'input' ? {
            //height: '14px',
            //padding: '1px 4px 1px 4px',
            //border: '1px solid transparent'
        } : {
            //padding: '0 4px 0 4px'
            //width: self.options.width + 'px'
        })
        //.css({background: 'red'})
        .html(formatValue())
        //[self.options.editing ? 'hide' : 'show']()
        .appendTo(that);

    self.$test = self.$value.$element.clone()
        .css({
            display: 'inline-block',
            //position: 'absolute',
            //left: 200,
            //top: 200
        })
        .html(formatTestValue())
        .hide()
        .appendTo(that.$element);

    self.$input = Ox.Input(Ox.extend({
            changeOnKeypress: true,
            style: 'square',
            type: self.options.type,
            value: formatInputValue()
        }, self.options.type == 'textarea' ? {
            width: self.options.width
        } : {}))
        .css({
            display: 'none',
        })
        .bindEvent({
            blur: submit,
            cancel: cancel,
            change: change
            //submit: submit
        })
        //[self.options.editing ? 'show' : 'hide']()
        .hide()
        .appendTo(that.$element);

    if (self.options.editing) {
        self.options.editing = false;
        edit();
    }

    function cancel() {
        self.options.value = self.originalValue;
        self.$input.options({value: formatInputValue()}).hide();
        self.$test.html(formatTestValue());
        self.$value.html(formatValue()).show();
        that.triggerEvent('submit', {
            value: self.options.value
        });
    }

    function change(event) {
        var height, width;
        self.options.value = event.value;
        self.$value.html(formatValue());
        self.$test.html(formatTestValue());
        //height = self.options.height || Ox.limit(self.$test.height() + 2, self.minHeight, self.maxHeight);
        height = self.options.height || Math.max(self.$test.height() + 2, self.minHeight);
        width = self.options.width || Ox.limit(self.$test.width() + 2, self.minWidth, self.maxWidth);
        Ox.print(self.options.width, self.$test.width(), 'wxh', width, height)
        if (self.options.type == 'input') {
            self.$input.options({
                width: width
            });
            self.$input.find('input').css({width: width + 'px'});
        } else {
            self.$input.options({
                height: height,
                width: width// + Ox.UI.SCROLLBAR_SIZE
            });
            self.$input.find('textarea').css({
                height: height + 'px',
                width: width /*+ Ox.UI.SCROLLBAR_SIZE*/ + 'px'
            });
        }
        
        //self.$input.find('input').css({width: width + 2})
        
        /*
        that.triggerEvent('change', {
            value: event.value
        });
        */
    }

    function edit() {
        var height, width;
        if (self.options.editable && !self.options.editing) {
            self.originalValue = self.options.value;
            self.minWidth = 8;
            self.maxWidth = that.parent().width();
            self.minHeight = 14;
            self.maxHeight = that.parent().height();
            height = self.options.height || self.$value.height();
            width = self.options.width || self.$value.width();
            self.$value.hide();

            Ox.print("H:::", self.options.height, self.maxHeight, height)

            self.$input.options({
                height: height,
                width: width
            }).show();
            if (self.options.type == 'input') {
                self.$input.find('input').css({
                    height: height + 'px',
                    width: width + 'px'
                });
            } else {
                self.$input.find('textarea').css({
                    height: height + 'px',
                    width: width + 'px'
                });
            }
            // fixme: why can't this be chained?
            setTimeout(function() {
                self.$input.focusInput(false);
            }, 0);
            self.options.editing = true;
            that.triggerEvent('edit', {editing: true});
        }
    }

    function formatInputValue() {
        return Ox.decodeHTML(
            self.options.type == 'input'
                ? self.options.value
                : self.options.value.replace(/<br\/?><br\/?>/g, '\n\n')
        );
    }

    function formatTestValue() {
        return self.options.type == 'input'
            ? self.options.value.replace(/ /g, '&nbsp;')
            : Ox.parseHTML(self.options.value || '&nbsp;')
                .replace(/<br\/?>$/, '<br/>&nbsp;');    
    }

    function formatValue() {
        return self.options.format
            ? self.options.format(self.options.value)
            : self.options.value
    }

    function submit() {
        self.options.value = Ox.parseHTML(self.$input.value());
        self.$input.options({value: formatInputValue()}).hide();
        self.$test.html(formatTestValue());
        self.$value.html(formatValue()).show();
        self.options.editing = false;
        that.triggerEvent('submit', {
            value: self.options.value
        });
    }

    that.css = function(obj) {
        that.$element.css(obj);
        self.$value.css(obj);
        self.$test.css(obj).hide();
        self.$input.css(obj).hide();
        self.$input.find('input').css(obj);
        //self.$value.css.apply(this, arguments);
        //self.$input.css.apply(this, arguments);
        return that
    };

    return that;

};