<?php

Yii::import("zii.widgets.grid.CGridView");
Yii::import("application.widgets.DataColumn");

class GridView extends CGridView {

    public $navegacao = true;
    public $paginacaoDefault = true;
    public $url = null;
    public $attributeToUpdate = null;
    public $fieldToFocus = null;
    public $attributeToSend = array();
    protected $rowSetKeys = array();
    public $rowIdPrefix = 'gr_';

    public function init() {
        $this->summaryText = '';
        $this->enableSorting = true;

        $this->emptyText = $this->emptyText === '' ? 'Nenhum resultado encontrado.' : $this->emptyText;

        if ($this->paginacaoDefault) {
            $this->pager = array(
                'cssFile' => Yii::app()->baseUrl . '/css/gridView.css',
                'class' => 'CLinkPager',
                'maxButtonCount' => 10,
                'nextPageLabel' => yii::t('core', 'Próximo'),
                'prevPageLabel' => yii::t('core', 'Anterior'),
                'firstPageLabel' => yii::t('core', 'Primeiro'),
                'lastPageLabel' => yii::t('core', 'Último'),
                'header' => '',
            );
        }

        $this->cssFile = Yii::app()->baseUrl . '/css/gridView.css';

        if ($this->navegacao) {
            array_push($this->columns, array(
                'class' => 'CButtonColumn',
                'viewButtonImageUrl' => Yii::app()->baseUrl . '/images/grid/ico_visualizar.png',
                'updateButtonImageUrl' => Yii::app()->baseUrl . '/images/grid/ico_editar.png',
                'deleteButtonImageUrl' => Yii::app()->baseUrl . '/images/grid/ico_excluir.png',
                'viewButtonUrl' => 'Yii::app()->getController()->createUrl("visualizar", array("id" => $data["id"]))',
                'deleteButtonUrl' => 'Yii::app()->getController()->createUrl("deletar", array("id" =>  $data["id"]))',
                'updateButtonUrl' => 'Yii::app()->getController()->createUrl("editar", array("id" =>  $data["id"]))',
            ));
        }

        if ($this->url != null) {
            $script = 'function(id) {';

            foreach ($this->attributeToSend as $att => $value) {
                if ($att == '0') {
                    $script .= 'var ' . $value . ' = $("#' . $value . '").val();';
                } else {
                    $script .= 'var ' . $att . ' = $("#' . $value . '").val();';
                }
            }

            $script .= '
            var paramId = jQuery.fn.yiiGridView.getSelection(id);
            console.log(paramId);
            if(paramId.length>0) {
                $.ajax({
                    url: "' . $this->url . '",
                    data: "id=" + paramId';
            foreach ($this->attributeToSend as $att => $value) {
                if ($att == '0') {
                    $script .= '+ "&' . $value . '=" + ' . $value . '';
                } else {
                    $script .= '+ "&' . $att . '=' . $value . '"';
                }
            }

            $script .= ', success: function(data) {
                            $("#' . $this->attributeToUpdate . '").html(data);';

            if (isset($this->fieldToFocus)) {
                $script .= '
                            $("#' . $this->fieldToFocus . '").focus();';
            }

            $script .= '
                        },
                        error: function() {
                            alert("Requisição Inválida!");
                        }
                    });
                }
            }';

            $this->selectionChanged = $script;
        }

//        if ($this->dataProvider->getKeys()) {
            $this->rowSetKeys = $this->dataProvider->getKeys();
//        } else {
//            throw new CException("Seu model " . $this->dataProvider->getId() . " está sem chave primária!");
//        }

        parent::init();
    }

    public function renderTableFooter() {
        $hasFilter = $this->filter !== null && $this->filterPosition === self::FILTER_POS_FOOTER;
        $hasFooter = $this->getHasFooter();
        if ($hasFilter || $hasFooter) {
            echo "<tfoot>\n";
            if ($hasFooter) {
                $totalDeColunas = 0;

                //verifica o total de colunas em todas as colunas
                foreach ($this->columns as $column) {
                    if (isset($column->multipleFooter)) {
                        if (sizeof($column->multipleFooter) > $totalDeColunas) {
                            $totalDeColunas = sizeof($column->multipleFooter);
                        }
                    }
                }

                if ($totalDeColunas >= 1) {
                    for ($cont = 0; $cont < $totalDeColunas; $cont++) {
                        echo "<tr>\n";

                        foreach ($this->columns as $column) {
                            if (isset($column->multipleFooter)) {
                                echo $column->renderMultiFooterCell($cont);
                            } else {
                                //printando na primeira linha
                                if ($cont == 0) {
                                    $column->renderFooterCell();
                                } else {
                                    echo "<td>" . $this->blankDisplay . "</td>\n";
                                }
                            }
                        }

                        echo "</tr>\n";
                    }
                } else {
                    echo "<tr>\n";
                    foreach ($this->columns as $column)
                        $column->renderFooterCell();
                    echo "</tr>\n";
                }
            }
            if ($hasFilter)
                $this->renderFilter();
            echo "</tfoot>\n";
        }
    }

    /**
     * Mesma coisa do CGridView, a diferença é a $column['class']
     */
    protected function initColumns() {
        if ($this->columns === array()) {
            if ($this->dataProvider instanceof CActiveDataProvider)
                $this->columns = $this->dataProvider->model->attributeNames();
            else if ($this->dataProvider instanceof IDataProvider) {
                // use the keys of the first row of data as the default columns
                $data = $this->dataProvider->getData();
                if (isset($data[0]) && is_array($data[0]))
                    $this->columns = array_keys($data[0]);
            }
        }
        $id = $this->getId();
        foreach ($this->columns as $i => $column) {
            if (is_string($column))
                $column = $this->createDataColumn($column);
            else {
                if (!isset($column['class'])) {
                    //Alteração realizada aqui!
                    $column['class'] = 'application.widgets.DataColumn';
                }
                $column = Yii::createComponent($column, $this);
            }
            if (!$column->visible) {
                unset($this->columns[$i]);
                continue;
            }
            if ($column->id === null)
                $column->id = $id . '_c' . $i;
            $this->columns[$i] = $column;
        }

        foreach ($this->columns as $column)
            $column->init();
    }

    /**
     * Mesma coisa do CGridView, a diferença é a DataColumn
     */
    protected function createDataColumn($text) {
        if (!preg_match('/^([\w\.]+)(:(\w*))?(:(.*))?$/', $text, $matches))
            throw new CException(Yii::t('zii', 'The column must be specified in the format of "Name:Type:Label", where "Type" and "Label" are optional.'));
        $column = new DataColumn($this);
        $column->name = $matches[1];
        if (isset($matches[3]) && $matches[3] !== '')
            $column->type = $matches[3];
        if (isset($matches[5]))
            $column->header = $matches[5];
        return $column;
    }

    /**
     * Adicionando o RowId nos TR
     */
    public function renderTableRow($row) {
        $rowId = $this->rowIdPrefix . $this->rowSetKeys[$row];

        if ($this->rowCssClassExpression !== null) {
            $data = $this->dataProvider->data[$row];
            echo '<tr class="' . $this->evaluateExpression($this->rowCssClassExpression, array('row' => $row, 'data' => $data)) . '" id="' . $rowId . '">';
        } else if (is_array($this->rowCssClass) && ($n = count($this->rowCssClass)) > 0)
            echo '<tr class="' . $this->rowCssClass[$row % $n] . '" id="' . $rowId . '">';
        else
            echo '<tr id="' . $rowId . '">';
        foreach ($this->columns as $column)
            $column->renderDataCell($row);
        echo "</tr>\n";
    }

}