<?php


// | 表单构建器

namespace util;

class Form
{
    /**
     * 下拉选择框
     * @param type $array 数据
     * @param type $id 默认选择
     * @param type $str 属性
     * @param type $default_option 默认选项
     * @return boolean|string
     */
    public static function select($array = array(), $id = 0, $str = '', $default_option = '')
    {
        $string           = '<select ' . $str . '>';
        $default_selected = (empty($id) && $default_option) ? 'selected' : '';
        if ($default_option) {
            $string .= "<option value='' $default_selected>$default_option</option>";
        }

        if (!is_array($array) || count($array) == 0) {
            return false;
        }

        $ids = array();
        if (isset($id)) {
            $ids = explode(',', $id);
        }

        foreach ($array as $key => $value) {
            $selected = in_array($key, $ids) ? 'selected' : '';
            $string .= '<option value="' . $key . '" ' . $selected . '>' . $value . '</option>';
        }
        $string .= '</select>';
        return $string;
    }

    /**
     * 复选框
     * @param $array 选项 二维数组
     * @param $id 默认选中值，多个用 '逗号'分割
     * @param $str 属性
     * @param $defaultvalue 是否增加默认值 默认值为 -99
     */
    public static function checkbox($array = array(), $id = '', $str = '', $defaultvalue = '', $field = '')
    {
        $string = '';
        /*$id = trim($id);
        if ($id != '') {
        $id = strpos($id, ',') ? explode(',', $id) : array($id);
        }*/
        if ($defaultvalue) {
            $string .= '<input type="hidden" ' . $str . ' value="-99">';
        }
        $i = 1;
        foreach ($array as $key => $value) {
            $key     = trim($key);
            $checked = ($id && in_array($key, $id)) ? 'checked' : '';
            $string .= '<input type="checkbox" lay-skin="primary" ' . $str . ' id="' . $field . '_' . $i . '" ' . $checked . ' value="' . htmlspecialchars($key) . '" title="' . htmlspecialchars($value) . '"> ';

            $i++;
        }
        return $string;
    }

    /**
     * 栏目选择
     * @param string $file 栏目缓存文件名
     * @param intval/array $id 别选中的ID，多选是可以是数组
     * @param string $str 属性
     * @param string $default_option 默认选项
     * @param intval $modelid 按所属模型筛选
     * @param intval $type 栏目类型
     * @param intval $onlysub 只可选择子栏目
     */
    public static function select_category($id = 0, $str = '', $default_option = '', $modelid = 0, $type = -1, $onlysub = 0)
    {
        $tree   = new \util\Tree();
        $result = cache('Category');
        $string = '<select ' . $str . '>';
        if ($default_option) {
            $string .= "<option value='0'>{$default_option}</option>";
        }
        $categorys = [];
        if (is_array($result)) {
            foreach ($result as $r) {
                $r             = getCategory($r['id']);
                $r['selected'] = '';
                if (is_array($id)) {
                    $r['selected'] = in_array($r['id'], $id) ? 'selected' : '';
                } elseif (is_numeric($id)) {
                    $r['selected'] = $id == $r['id'] ? 'selected' : '';
                }
                $categorys[$r['id']] = $r;
                if ($modelid && $r['modelid'] != $modelid) {
                    unset($categorys[$r['id']]);
                }
            }
        }
        $str  = "<option value='\$id' \$selected>\$spacer \$catname</option>";
        $str2 = "<optgroup label='\$spacer \$catname'></optgroup>";
        $tree->init($categorys);
        $string .= $tree->get_tree_category(0, $str, $str2);
        $string .= '</select>';
        return $string;

    }

    /**
     * 图片上传
     * @param string $name 表单名称
     * @param int $id 表单id
     * @param string $value 表单默认值
     * @param string $multiple 是否多图片
     * @param string $alowexts 允许图片格式
     * @param int $size 图片大小限制
     * @param int $watermark_setting  水印 0或1
     */
    public static function images($name, $id = '', $value = '', $multiple = 'false', $ext = '', $size = 0, $watermark = 0)
    {
        $string     = '';
        $static_url = ROOT_URL . (defined('IF_PUBLIC') ? 'static' : 'public/static');
        if (!$id) {
            $id = $name;
        }
        if (!$ext) {
            $ext = 'jpg|jpeg|gif|bmp|png';
        }
        $string .= "<div id='file_list_{$name}' class='uploader-list'>";
        if (!empty($value)) {
            $path = get_file_path($value) ? get_file_path($value) : $static_url . "/admin/img/none.png";
            $string .= "<div class='file-item thumbnail'><img data-image class='{$name}-{$value}' data-original='{$path}' src='{$path}'><div class='file-panel'><i class='iconfont icon-tailor cropper' data-input-id='{$value}' data-id='{$name}'></i> <i class='iconfont icon-trash remove-picture' data-id='{$value}'></i></div></div>";
        }
        $string .= "</div><input type='hidden' name='{$name}' data-multiple='{$multiple}' data-watermark='{$watermark}' data-thumb='' data-size='{$size}' data-ext='{$ext}' id='{$id}' value='{$value}'><div class='layui-clear'></div><div id='picker_{$name}'><i class='layui-icon layui-icon-upload'></i> 上传单张图片</div> <button type='button' class='layui-btn fachoose-image' data-input-id='{$name}' id='fachoose-{$name}'><i class='iconfont icon-other'></i> 选择</button>";
        return $string;
    }

}