<?php
/**
 * +----------------------------------------------------------------------
 * | 模板控制器
 * +----------------------------------------------------------------------
 *                      .::::.
 *                    .::::::::.            | AUTHOR: siyu
 *                    :::::::::::           | EMAIL: 407593529@qq.com
 *                 ..:::::::::::'           | QQ: 407593529
 *             '::::::::::::'               | DATETIME: 2019/03/06
 *                .::::::::::
 *           '::::::::::::::..
 *                ..::::::::::::.
 *              ``::::::::::::::::
 *               ::::``:::::::::'        .:::.
 *              ::::'   ':::::'       .::::::::.
 *            .::::'      ::::     .:::::::'::::.
 *           .:::'       :::::  .:::::::::' ':::::.
 *          .::'        :::::.:::::::::'      ':::::.
 *         .::'         ::::::::::::::'         ``::::.
 *     ...:::           ::::::::::::'              ``::.
 *   ```` ':.          ':::::::::'                  ::::..
 *                      '.:::::'                    ':'````..
 * +----------------------------------------------------------------------
 */

namespace app\admin\controller;

use think\facade\Request;
use think\facade\View;

// 引入表格和表单构建器
use app\common\builder\TableBuilder;
use app\common\builder\FormBuilder;

class Template extends Base
{
    protected $public, $template_path, $template_html, $template_css, $template_js, $template_img, $upload_path;

    // 默认开启备份功能
    protected $templateOpening = true;

    function initialize()
    {
        parent::initialize();
        // 查找所有系统设置表数据
        $system              = \app\common\model\System::find(1);
        $this->public        = '/template/' .
            $system['template'] .
            '/' .
            'index' .
            '/';
        $this->template_path =
            '.' . $this->public;
        $this->template_html = $system['html'];
        $this->template_css  = 'css';
        $this->template_js   = 'js';
        $this->template_img  = 'img';

        $initialize = [
            'html' => $this->template_html, // 自定义html目录
            'css'  => $this->template_css,  // 自定义css目录
            'js'   => $this->template_js,   // 自定义js目录
            'img'  => $this->template_img,  // 自定义媒体文件目录
        ];
        View::assign($initialize);

        // 查找是否开启了模板修改备份功能
        $this->templateOpening = $system['template_opening'];
    }

    // 列表
    public function index(string $type = 'html')
    {
        if ($type == 'html') {
            $path = $this->template_path . $this->template_html . DIRECTORY_SEPARATOR;
        } else {
            $path = $this->template_path . $type . DIRECTORY_SEPARATOR;
        }

        // 设置主键
        $pk = 'id';
        // 字段信息
        $columns = [
            ['id', '文件名称'],
            ['filepath', '目录'],
            ['filesize', '文件大小'],
            ['filemtime', '更新时间', '', '', '', '', 'true'],
            ['ext', '后缀'],
        ];
        $files   = dir_list($path, $type);
        $list    = [];
        foreach ($files as $key => $file) {
            $filename = basename($file);
            //$list[$key]['value']     = substr($filename, 0, strrpos($filename, '.'));
            $list[$key]['id']        = $filename;
            $list[$key]['filepath']  = $file;
            $list[$key]['filesize']  = format_bytes(filesize($file));
            $list[$key]['filemtime'] = date('Y-m-d H:i:s', filemtime($file));
            $list[$key]['ext']       = strtolower(substr($filename, strrpos($filename, '.') - strlen($filename)));
        }
        // 搜索
        if (Request::param('getList') == 1) {
            // 排序规则
            $orderByColumn = Request::param('orderByColumn') ?? $pk;
            $isAsc         = Request::param('isAsc') ?? 'desc';
            $isAsc         = $isAsc == 'desc' ? SORT_DESC : SORT_ASC;
            // 排序处理
            $date = array_column($list, $orderByColumn);
            array_multisort($date, $isAsc, $list);
            // 渲染输出
            $result = [
                'total'        => count($list),
                'per_page'     => 1000,
                'current_page' => 1,
                'last_page'    => 1,
                'data'         => $list,
            ];
            return $result;
        }

        // 获取头部切换按钮
        $pageTips = $this->getPageTips($type);

        // 构建页面
        return TableBuilder::getInstance()
            ->setUniqueId($pk)                              // 设置主键
            ->addColumns($columns)                         // 添加列表字段数据
            ->setPageTips($pageTips, 'success', 'search')   // 提示信息
            ->setPagination('false')                        // 关闭分页显示
            ->addColumn('right_button', '操作', 'btn')
            ->addRightButton('edit', ['href' => (string)url('edit', ['id' => '__id__', 'type' => $type])])
            ->addRightButton('delete')
            ->addTopButtons(['add', 'edit', 'del'])         // 设置顶部按钮组
            ->setEditUrl((string)url('edit', ['id' => '__id__', 'type' => $type]))
            ->setDelUrl((string)url('del', ['id' => '__id__', 'type' => $type]))
            ->setDataUrl(url('index', ['getList' => '1', 'type' => $type]))
            ->fetch();
    }

    // 添加
    public function add()
    {
        // 默认文件类型
        $type = Request::param('type', 'html');
        // 文件类型数组
        $fileType = ['html' => 'HTML', 'css' => 'CSS', 'js' => 'JS'];
        // 构建页面
        return FormBuilder::getInstance()
            ->addFormItems([
                ['text', 'filename', '文件名称', '不需要输入文件后缀，如 style.css 请填写style', '', [], '', '', '', true],
                ['radio', 'type', '文件类型', '', $fileType, $type, '', '', true],
                ['code', 'content', '内容', '', '', '', '', '', false, $type],
            ])
            ->fetch();
    }

    // 添加保存
    public function addPost()
    {
        if (Request::isPost()) {
            $filename = $this->checkFilename(Request::post('filename'));
            $type     = $this->checkFiletype(Request::param('type', 'html'));
            if (empty($filename)) {
                $this->error('文件名称不可以为空');
            }
            if ($type == 'html') {
                $path = $this->template_path . $this->template_html . '/';
            } else {
                $path = $this->template_path . $type . '/';
            }
            $file = $path . $filename . '.' . $type;
            if (file_exists($file)) {
                $this->error('文件已经存在!');
            } else {
                try {
                    file_put_contents($file, stripslashes(input('post.content')));
                } catch (\Exception $e) {
                    $this->error($e->getMessage());
                }
                $this->success('添加成功!', url('index', ['type' => $type]));
            }
        }
    }

    // 修改
    public function edit(string $id)
    {
        $id = $this->checkFilename($id);
        // 默认文件类型
        $type = $this->checkFiletype(Request::param('type', 'html'));
        // 文件类型数组
        $fileType = ['html' => 'HTML', 'css' => 'CSS', 'js' => 'JS'];
        if ($type == 'html') {
            $path = $this->template_path . $this->template_html . '/';
        } else {
            $path = $this->template_path . $type . '/';
        }
        $file = $path . $id;
        if (file_exists($file)) {
            $file    = iconv('gb2312', 'utf-8', $file);
            $content = file_get_contents($file);
            $info    = [
                'filename' => $id,
                'file'     => $file,
                'content'  => $content,
                'type'     => $type
            ];
        } else {
            $this->error('文件不存在！');
        }

        // 构建页面
        return FormBuilder::getInstance()
            ->addFormItems([
                ['text', 'filename', '文件名称', '不需要输入文件后缀，如 style.css 请填写style', $info['filename'], [], 'readonly', '', '', true],
                ['radio', 'type', '文件类型', '', $fileType, $info['type'], '', '', true],
                ['code', 'content', '内容', '', $info['content'], '', '', '', false, $type],
                ['hidden', 'file', $info['file']]
            ])
            ->fetch();
    }

    // 修改保存
    public function editPost()
    {
        if (Request::isPost()) {
            $filename = $this->checkFilename(Request::post('filename'));
            $type     = $this->checkFiletype(Request::param('type', 'html'));
            if (empty($filename)) {
                $this->error('文件名称不可以为空');
            }
            if ($type == 'html') {
                $path = $this->template_path . $this->template_html . '/';
            } else {
                $path = $this->template_path . $type . '/';
            }
            $file = $path . $filename;
            if (file_exists($file)) {
                // 判断是否有写入权限
                if (!is_writable($file)) {
                    $this->error('无写入权限!');
                }

                // 备份文件(防止出错)
                if ($this->templateOpening) {
                    // 设置备份文件名
                    $newFile = $path . str_replace('.', '_back-' . date("Y-m-d_H-i-s") . '.', $filename);
                    // 执行复制操作
                    copy($file, $newFile);
                }

                if (false !== file_put_contents($file, stripslashes(input('content')))) {
                    $this->success('修改成功!', url('index', ['type' => $type]));
                } else {
                    $this->error('修改失败!');
                }
            } else {
                $this->error('文件不存在!');
            }
        }
    }

    // 删除
    public function del(string $id, string $type = 'html')
    {
        $id   = $this->checkFilename($id);
        $type = $this->checkFiletype($type);
        if (strpos($id, ',') !== false) {
            return $this->selectDel($id, $type);
        }
        //删除文件
        if ($type == 'html') {
            $path = $this->template_path . $this->template_html . '/';
        } else {
            $path = $this->template_path . $type . '/';
        }
        $file = $path . $id;
        if (file_exists($file)) {
            unlink($file);
            return ['error' => 0, 'msg' => '删除成功!'];
        } else {
            return ['error' => 1, 'msg' => '删除失败!'];
        }
    }

    // 批量删除
    public function selectDel(string $id, string $type = 'html')
    {
        $type = $this->checkFiletype($type);
        if (Request::isPost()) {
            $ids = explode(',', $id);
            if ($type == 'html') {
                $path = $this->template_path . $this->template_html . '/';
            } else {
                $path = $this->template_path . $type . '/';
            }
            foreach ($ids as $k => $v) {
                $v = $this->checkFilename($v);
                //删除文件
                $file = $path . $v;
                if (file_exists($file)) {
                    unlink($file);
                }
            }
            return ['error' => 0, 'msg' => '删除成功!'];
        }
    }

    // 媒体文件
    public function img()
    {
        $path   = $this->template_path . $this->template_img . '/' . Request::param('folder');
        $folder = Request::param('folder', '');
        $uppath = explode('/', Request::param('folder'));
        $leve   = count($uppath) - 1;
        unset($uppath[$leve]);
        if ($leve > 1) {
            unset($uppath[$leve - 1]);
            $uppath = implode('/', $uppath) . '/';
        } else {
            $uppath = '';
        }

        $files   = glob($path . '*');
        $folders = $templates = array();
        foreach ($files as $key => $file) {
            $filename = basename($file);
            if (is_dir($file)) {
                $folders[$key]['filename'] = $filename;
                $folders[$key]['filepath'] = $file;
                $folders[$key]['ext']      = 'folder';
            } else {
                $templates[$key]['filename'] = $filename;
                $templates[$key]['filepath'] = ltrim($file, '.');
                $templates[$key]['ext']      = strtolower(substr($filename, strrpos($filename, '.') - strlen($filename) + 1));
                if (!in_array($templates[$key]['ext'], array('gif', 'jpg', 'png', 'bmp'))) {
                    $templates[$key]['ico'] = 1;
                }
            }
        }
        $view = [
            'folder'  => $folder,
            'leve'    => $leve,
            'uppath'  => $uppath,
            'path'    => $path,               //路径
            'folders' => $folders,            //文件夹
            'files'   => $templates,          //文件
            'type'    => $this->template_img, //当前显示的类型
        ];
        View::assign($view);
        return View::fetch();
    }

    // 媒体文件删除
    public function imgDel()
    {
        $folder = str_replace("..", "", Request::param('folder'));
        $path   = $this->template_path . $this->template_img . '/' . $folder;
        $file   = $path . $this->checkFilename(Request::post('filename'));

        if (file_exists($file)) {
            is_dir($file) ? dir_delete($file) : unlink($file);
            return json(['error' => 0, 'msg' => '删除成功!']);
        } else {
            return json(['error' => 1, 'msg' => '文件不存在!']);
        }
    }

    /**
     * 获取头部切换按钮
     * @param string $type
     * @return string
     */
    private function getPageTips(string $type)
    {
        $html = $type == 'html' ? 'btn-info' : 'btn-primary';
        $css  = $type == 'css' ? 'btn-info' : 'btn-primary';
        $js   = $type == 'js' ? 'btn-info' : 'btn-primary';
        $img  = $type == 'img' ? 'btn-info' : 'btn-primary';

        $link     = [
            'html' => url('index', ['type' => 'html']),
            'css'  => url('index', ['type' => 'css']),
            'js'   => url('index', ['type' => 'js']),
            'img'  => url('img', ['type' => 'img']),
        ];
        $pageTips = '
            <a class="btn btn-flat m-r-5 ' . $html . '" href="' . $link['html'] . '">html</a>
            <a class="btn btn-flat m-r-5 ' . $css . '" href="' . $link['css'] . '">css</a>
            <a class="btn btn-flat m-r-5 ' . $js . '" href="' . $link['js'] . '">js</a>
            <a class="btn btn-flat m-r-5 ' . $img . '" href="' . $link['img'] . '">媒体文件</a>
        ';
        return $pageTips;
    }

    // 过滤文件名
    private function checkFilename(string $fileName)
    {
        $fileName = str_replace("/", "", $fileName);
        $fileName = str_replace("..", "", $fileName);
        $fileName = str_ireplace(".php", ".html", $fileName);
        $fileName = str_ireplace(".asp", ".html", $fileName);
        return $fileName;
    }

    // 过滤文件类型
    private function checkFiletype(string $fileType)
    {
        $arr = ['html', 'css', 'js'];
        if (!in_array(strtolower($fileType), $arr)) {
            return 'html';
        } else {
            return $fileType;
        }
    }
}