<?php
/**
 * List Controller
 */
require_once __DIR__ . '/../../../lib/DirScanner.php';
require_once __DIR__ . '/../../../plugins/Parsedown.php';
require_once __DIR__ . '/SiteController.php';

Class ListController extends SiteController {

    public function actionIndex() {
        //获取数据
        $menus = array();        //菜单，一级目录
        $htmlReadme = '';   //Readme.md 内容，底部网站详细介绍
        $htmlCateReadme = '';   //当前目录下的Readme.md 内容
        $menus_sorted = array(); //Readme_sort.txt 说明文件内容，一级目录菜单从上到下的排序
        
        $scanner = new DirScanner();
        $scanner->setWebRoot(FSC::$app['config']['content_directory']);
        $dirTree = $scanner->scan(__DIR__ . '/../../../www/' . FSC::$app['config']['content_directory'], 3);
        $scanResults = $scanner->getScanResults();

        //获取目录
        $menus = $scanner->getMenus();

        $titles = array();
        $readmeFile = $scanner->getDefaultReadme();
        if (!empty($readmeFile)) {
            if (!empty($readmeFile['sort'])) {
                $menus_sorted = explode("\n", $readmeFile['sort']);
            }

            $titles = $scanner->getMDTitles($readmeFile['id']);

            $Parsedown = new Parsedown();
            $content = file_get_contents($readmeFile['realpath']);
            $htmlReadme = $Parsedown->text($content);
            $htmlReadme = $scanner->fixMDUrls($readmeFile['realpath'], $htmlReadme);
        }

        //排序
        $sortedTree = $this->sortMenusAndDirTree($menus_sorted, $menus, $dirTree);
        if (!empty($sortedTree)) {
            $menus = $sortedTree['menus'];
            $dirTree = $sortedTree['dirTree'];
        }

        //获取目录面包屑
        $cateId = $this->get('id', $menus[0]['id']);
        $subcate = $scanResults[$cateId];
        $breadcrumbs = $this->getBreadcrumbs($scanResults, $subcate);

        //获取当前目录下的readme
        $cateReadmeFile = $scanner->getDefaultReadme($cateId);
        if (!empty($cateReadmeFile)) {
            $Parsedown = new Parsedown();
            $content = file_get_contents($cateReadmeFile['realpath']);
            $htmlCateReadme = $Parsedown->text($content);
            $htmlCateReadme = $scanner->fixMDUrls($cateReadmeFile['realpath'], $htmlCateReadme);
        }

        //获取tags分类
        $tags = $this->getTags($dirTree);

        //TODO: 根据tag获取相关数据，并传给视图；调整视图兼容tag的数据结构
        

        $pageTitle = $defaultTitle = !empty($titles) ? $titles[0]['name'] : FSC::$app['config']['site_name'];
        if (!empty($subcate)) {
            $pageTitle = "{$subcate['directory']}相关视频，来自{$defaultTitle}";
            if (!empty($subcate['title'])) {
                $pageTitle = "{$subcate['title']}，来自{$defaultTitle}";
            }
        }
        $viewName = '//site/index';     //共享视图
        $params = compact('cateId', 'dirTree', 'scanResults', 'menus', 'htmlReadme', 'breadcrumbs', 'htmlCateReadme', 'tags');
        return $this->render($viewName, $params, $pageTitle);
    }

    //根据目录结构以及当前目录获取面包屑
    protected function getBreadcrumbs($menus, $subcate) {
        $breads = array();

        if (!empty($subcate['directory'])) {
            array_push($breads, [
                'id' => $subcate['id'],
                'name' => $subcate['directory'],
                'url' => $subcate['path'],
            ]);
        }else {     //如果是文件
            array_push($breads, [
                'id' => $subcate['id'],
                'name' => $subcate['filename'],
                'url' => $subcate['path'],
            ]);
        }
        

        $parent = !empty($menus[$subcate['pid']]) ? $menus[$subcate['pid']] : null;
        while($parent) {
            array_unshift($breads, [
                'id' => $parent['id'],
                'name' => $parent['directory'],
                'url' => $parent['path'],
            ]);

            $parent = !empty($parent['pid']) && !empty($menus[$parent['pid']]) ? $menus[$parent['pid']] : null;
        }

        return $breads;
    }

}