/*jsl:import ipa.js */
/*  Authors:
 *    Endi Sukma Dewata <edewata@redhat.com>
 *
 * Copyright (C) 2010 Red Hat
 * see file 'COPYING' for use and warranty information
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/* REQUIRES: widget.js */

/**
 * This is a base class for dialog boxes.
 */
IPA.dialog = function(spec) {

    spec = spec || {};

    var that = {};

    that.entity = spec.entity;
    that.name = spec.name;
    that.id = spec.id;
    that.title = spec.title;
    that.width = spec.width || 400;
    that.height = spec.height;

    that.buttons = {};

    that.fields = $.ordered_map();
    that.sections = $.ordered_map();

    that.conditional_fields = [];

    that.enable_conditional_fields = function(){
        for (var i =0; i < that.conditional_fields.length; i+=1) {
            $('label[id='+
               that.conditional_fields[i] +'-label]',
              that.container).css('visibility','visible');
            $('input[name='+
               that.conditional_fields[i] +
              ']',that.container).css('visibility','visible');
        }
    };

    that.disable_conditional_fields = function(){
        for (var i =0; i < that.conditional_fields.length; i+=1) {
            $('label[id='+
               that.conditional_fields[i] +'-label]',
              that.container).css('visibility','hidden');

            $('input[name='+
              that.conditional_fields[i] +
              ']',that.container).css('visibility','hidden');
        }
    };

    that.add_button = function(name, handler) {
        that.buttons[name] = handler;
    };

    that.get_field = function(name) {
        return that.fields.get(name);
    };

    that.add_field = function(field) {
        field.dialog = that;
        that.fields.put(field.name, field);
        if (field.conditional){
            that.conditional_fields.push(field.name);
        }
        return field;
    };

    that.field = function(field) {
        that.add_field(field);
        return that;
    };

    that.is_valid = function() {
        var fields = that.fields.values;
        for (var i=0; i<fields.length; i++) {
            var field = fields[i];
            if (!field.valid) return false;
        }
        return true;
    };

    that.text = function(name){
        that.field(IPA.text_widget({
            name: name,
            undo: false,
            entity : that.entity
        }));
        return that;
    };

    that.add_section = function(section) {
        that.sections.put(section.name, section);
        return that;
    };

    that.section = function(section) {
        that.add_section(section);
        return that;
    };

    that.create_section = function(spec) {
        var section = IPA.details_section(spec);
        that.add_section(section);
        return section;
    };

    /**
     * Create content layout
     */
    that.create = function() {

        var table = $('<table/>').appendTo(that.container);

        var fields = that.fields.values;
        for (var i=0; i<fields.length; i++) {
            var field = fields[i];
            if (field.hidden) continue;

            var tr = $('<tr/>').appendTo(table);

            var td = $('<td/>', {
                style: 'vertical-align: top;',
                title: field.label
            }).appendTo(tr);
            var label_text = field.label;
            if (label_text !== null){
                label_text += ': ';
            }else{
                label_text = '';
            }
            td.append($('<label />',{id: field.name+'-label',
                                     text: label_text}));

            td = $('<td/>', {
                style: 'vertical-align: top;'
            }).appendTo(tr);

            var span = $('<span/>', { 'name': field.name }).appendTo(td);
            field.create(span);
            field.field_span = span;

            if (field.optional){
                span.css('display','none');
                td.append(
                    $('<a/>',{
                        text: IPA.messages.widget.optional,
                        href:'',
                        click: function(){
                            var span = $(this).prev();
                            span.css('display','inline');
                            $(this).css('display','none');
                            return false;
                        }
                    }));
            }

        }

        var sections = that.sections.values;
        for (var j=0; j<sections.length; j++) {
            var section = sections[j];

            var div = $('<div/>', {
                name: section.name,
                'class': 'details-section'
            }).appendTo(that.container);

            section.create(div);
        }

    };


    /**
     * Open dialog
     */
    that.open = function(container) {

        that.container = $('<div/>', { id : that.id });
        if (container) {
            container.append(that.container);
        }

        that.create();

        that.container.dialog({
            title: that.title,
            modal: true,
            width: that.width,
            minWidth: that.width,
            height: that.height,
            minHeight: that.height,
            buttons: that.buttons,
            close: function(event, ui) {
                that.close();
            }
        });
    };

    that.option = function(name, value) {
        that.container.dialog('option', name, value);
    };

    that.save = function(record) {
        var fields = that.fields.values;
        for (var i=0; i<fields.length; i++) {
            var field = fields[i];
            var values = field.save();
            record[field.name] = values.join(',');
        }

        var sections = that.sections.values;
        for (var j=0; j<sections.length; j++) {
            var section = sections[j];

            if (section.save) {
                section.save(record);
            }
        }
    };

    that.close = function() {
        that.container.dialog('destroy');
        that.container.remove();
    };

    that.reset = function() {
        var fields = that.fields.values;
        for (var i=0; i<fields.length; i++) {
            var field = fields[i];
            field.reset();
        }

        var sections = that.sections.values;
        for (var j=0; j<sections.length; j++) {
            sections[j].reset();
        }
    };

    that.dialog_create = that.create;
    that.dialog_open = that.open;
    that.dialog_close = that.close;
    that.dialog_save = that.save;
    that.dialog_reset = that.reset;

    var fields = spec.fields || [];
    for (var i=0; i<fields.length; i++) {
        var field_spec = fields[i];
        var field;

        if (field_spec instanceof Object) {
            var factory = field_spec.factory || IPA.text_widget;
            field_spec.entity = that.entity;
            field = factory(field_spec);

            /* This is a bit of a hack, and is here to support ACI
               permissions. The target section is a group of several
               widgets together. It makes more sense to do them as a
               section than as a widget. However, since they can be mixed
               into the flow with the other widgets, the section needs to
               be defined here with the fields to get the order correct.*/
            if (field.section) {
                that.add_section(field);
            } else {
                that.add_field(field);
            }

        } else {
            field = IPA.text_widget({
                name: field_spec,
                entity:that.entity,
                undo: false });
            that.add_field(field);
        }
    }

    return that;
};

/**
 * This dialog provides an interface for searching and selecting
 * values from the available results.
 */
IPA.adder_dialog = function (spec) {

    spec = spec || {};

    var that = IPA.dialog(spec);
    that.external = spec.external;
    that.width = spec.width || 600;
    that.height = spec.height || 360;

    if (!that.entity){
        var except = {
            expected: false,
            message:'Adder dialog created without entity.'
        };
        throw except;
    }

    that.columns = $.ordered_map();


    that.get_column = function(name) {
        return that.columns.get(name);
    };

    that.add_column = function(column) {
        that.columns.put(column.name, column);
    };

    that.set_columns = function(columns) {
        that.clear_columns();
        for (var i=0; i<columns.length; i++) {
            that.add_column(columns[i]);
        }
    };

    that.clear_columns = function() {
        that.columns.empty();
    };

    that.create_column = function(spec) {
        spec.entity = that.entity;
        var column = IPA.column(spec);
        that.add_column(column);
        return column;
    };

    function initialize_table(){
        that.available_table = IPA.table_widget({
            entity: that.entity,
            name: 'available',
            scrollable: true
        });

        var columns = that.columns.values;
        that.available_table.set_columns(columns);

        that.selected_table = IPA.table_widget({
            entity: that.entity,
            name: 'selected',
            scrollable: true
        });

        that.selected_table.set_columns(columns);
    }
    that.create = function() {

        /*TODO:  move this earlier
          The table initialization should be done earlier.  However,
          the adder columns are not added until after initialization is over,
          and thus we have to dleay the creation of the table.*/
        initialize_table();

        // do not call that.dialog_create();

        var container = $('<div/>', {
            'class': 'adder-dialog'
        }).appendTo(that.container);

        var top_panel = $('<div/>', {
            'class': 'adder-dialog-top'
        }).appendTo(container);

        $('<input/>', {
            type: 'text',
            name: 'filter'
        }).appendTo(top_panel);

        top_panel.append(' ');

        $('<input/>', {
            type: 'button',
            name: 'find',
            value: IPA.messages.buttons.find
        }).appendTo(top_panel);

        top_panel.append(IPA.create_network_spinner());

        var left_panel = $('<div/>', {
            'class': 'adder-dialog-left'
        }).appendTo(container);

        var available_panel = $('<div/>', {
            name: 'available',
            'class': 'adder-dialog-available'
        }).appendTo(left_panel);

        $('<div/>', {
            html: IPA.messages.dialogs.available,
            'class': 'adder-dialog-header ui-widget-header'
        }).appendTo(available_panel);

        var available_content = $('<div/>', {
            'class': 'adder-dialog-content'
        }).appendTo(available_panel);

        that.available_table.create(available_content);


        var right_panel = $('<div/>', {
            'class': 'adder-dialog-right'
        }).appendTo(container);

        var selected_panel = $('<div/>', {
            name: 'selected',
            'class': 'adder-dialog-selected'
        }).appendTo(right_panel);

        $('<div/>', {
            html: IPA.messages.dialogs.prospective,
            'class': 'adder-dialog-header ui-widget-header'
        }).appendTo(selected_panel);

        var selected_content = $('<div/>', {
            'class': 'adder-dialog-content'
        }).appendTo(selected_panel);

        that.selected_table.create(selected_content);


        var buttons_panel = $('<div/>', {
            name: 'buttons',
            'class': 'adder-dialog-buttons'
        }).appendTo(container);

        var p = $('<p/>').appendTo(buttons_panel);
        $('<input />', {
            type: 'button',
            name: 'remove',
            value: '<<'
        }).appendTo(p);

        p = $('<p/>').appendTo(buttons_panel);
        $('<input />', {
            type: 'button',
            name: 'add',
            value: '>>'
        }).appendTo(p);


        that.filter_field = $('input[name=filter]', that.container);

        var button = $('input[name=find]', that.container);
        that.find_button = IPA.button({
            name: 'find',
            'label': button.val(),
            'click': function() {
                that.search();
                return false;
            }
        });
        button.replaceWith(that.find_button);

        button = $('input[name=remove]', that.container);
        that.remove_button = IPA.button({
            name: 'remove',
            'label': button.val(),
            'click': function() {
                that.remove();
                return false;
            }
        });
        button.replaceWith(that.remove_button);

        button = $('input[name=add]', that.container);
        that.add_button = IPA.button({
            name: 'add',
            'label': button.val(),
            'click': function() {
                that.add();
                return false;
            }
        });
        button.replaceWith(that.add_button);

        if (that.external) {
            container.addClass('adder-dialog-with-external');

            var external_panel = $('<div/>', {
                name: 'external',
                'class': 'adder-dialog-external'
            }).appendTo(left_panel);

            $('<div/>', {
                html: IPA.messages.objects.sudorule.external,
                'class': 'adder-dialog-header ui-widget-header'
            }).appendTo(external_panel);

            var external_content = $('<div/>', {
                'class': 'adder-dialog-content'
            }).appendTo(external_panel);

            that.external_field = $('<input/>', {
                type: 'text',
                name: 'external'
            }).appendTo(external_content);

        }

        that.search();
    };


    that.open = function(container) {

        that.buttons[IPA.messages.buttons.enroll] = that.execute;
        that.buttons[IPA.messages.buttons.cancel] = that.close;

        that.dialog_open(container);
    };

    that.add = function() {
        var rows = that.available_table.remove_selected_rows();
        that.selected_table.add_rows(rows);
    };

    that.remove = function() {
        var rows = that.selected_table.remove_selected_rows();
        that.available_table.add_rows(rows);
    };

    that.get_filter = function() {
        return that.filter_field.val();
    };

    that.get_hide_checkbox = function() {
        return that.hide_checkbox.checked;
    };

    that.clear_available_values = function() {
        that.available_table.empty();
    };

    that.clear_selected_values = function() {
        that.selected_table.empty();
    };

    that.add_available_value = function(record) {
        that.available_table.add_record(record);
    };

    that.get_selected_values = function() {
        return that.selected_table.save();
    };

    /*dialog initialization */
   if (spec.columns){
        for (var i =0; i < spec.columns.length; i +=1){
            that.create_column(spec.columns[i]);
        }
    }


    that.adder_dialog_create = that.create;

    return that;
};

/**
 * This dialog displays the values to be deleted.
 */
IPA.deleter_dialog =  function (spec) {

    spec = spec || {};

    var that = IPA.dialog(spec);

    that.title = spec.title || IPA.messages.buttons.remove;

    that.values = spec.values || [];

    that.add_value = function(value) {
        that.values.push(value);
    };

    that.set_values = function(values) {
        that.values = values;
    };

    that.create = function() {

        $('<p/>', {
            'text': IPA.messages.search.delete_confirm
        }).appendTo(that.container);

        var div = $('<div/>', {
            style: 'overflow:auto; max-height: 100px'
        }).appendTo(that.container);

        var ul = $('<ul/>');
        ul.appendTo(div);

        for (var i=0; i<that.values.length; i++) {
            var value = that.values[i];
            if (value instanceof Object){
                var first = true;
                var str_value = "";
                for (var key in value){
                    if (value.hasOwnProperty(key)){
                        if (!first){
                            str_value += ',';
                        }
                        str_value += (key + ':' +value[key]);
                        first = false;
                    }
                }
                value = str_value;
            }

            $('<li/>',{
                'text': value
            }).appendTo(ul);
        }
    };

    that.open = function(container) {

        that.buttons[IPA.messages.buttons.remove] = that.execute;
        that.buttons[IPA.messages.buttons.cancel] = that.close;

        that.dialog_open(container);
    };

    that.deleter_dialog_create = that.create;

    return that;
};

IPA.message_dialog = function(spec) {

    var that = IPA.dialog(spec);

    var init = function() {
        spec = spec || {};
        that.message = spec.message || '';
        that.on_ok = spec.on_ok;
    };

    that.create = function() {
        $('<p/>', {
            'text': that.message
        }).appendTo(that.container);
    };

    that.add_button(IPA.messages.buttons.ok, function() {
        that.close();
        if(that.on_ok) {
            that.on_ok();
        }
    });

    init();

    return that;
};