<?php
namespace app\model;

class Block extends Base
{
    const BLOCK = 1;
    const IMG = 2;
    const TEXT = 3;
    const GROUP = 4;
    const VIDEO = 5;
    const CODE = 6;

    //获取类型键值对
    public static function getTypes()
    {
        return [
            '1' => 'block',
            '2' => 'img',
            '3' => 'text',
            '4' => 'group',
            '5' => 'video',
            '6' => 'code'
        ];
    }

    //根据键值和类目获取数据
    public static function getByKeyword($keyword, $categoryId)
    {
        return self::where('keyword', $keyword)->where('category_id', $categoryId)->findOrEmpty()->toArray();
    }

    //根据栏目ID获取块列表
    public static function getByCategoryId($categoryId)
    {
        
        if($categoryId <= 0){
            return [];
        }
        $category = Category::getById($categoryId);
        if(empty($category)){
            return [];
        }
        $items = self::where('category_id', $categoryId)
        ->order('sort asc')
        ->select()
        ->toArray();
        if(empty($items)){
            return [];
        }
        $data = [];
        foreach($items as $item){
            $data[$item['keyword']] = $item;
        }
        return $data;
    }

    public static function onAfterInsert($item)
    {
        $item->sort  = $item->id;
        $item->save();
    }

    //获取在使用中的文件
    public static  function getFilesInUse()
    {
        $items = self::whereIn('type', [self::IMG, self::GROUP, self::VIDEO, self::TEXT])
        ->select()
        ->toArray();
        $data = [];
        foreach($items as $item){
            if($item['type'] == self::IMG){
                $file = trim($item['value']);
                if(!empty($file)){
                    $key = getKeyByPath($file);
                    $data[$key] = $file;
                }
            }elseif($item['type'] == self::GROUP){
                $val = trim($item['value']);
                if (!empty($val) && $val != '[]' && $val != 'null') {
                    $files = json_decode($val, true);
                    foreach($files as $file){
                        $src = trim($file['src']);
                        if(!empty($src)){
                            $key = getKeyByPath($src);
                            $data[$key] = $src;
                        }
                    }
                }
            }elseif($item['type'] == self::VIDEO){
                $video = trim($item['value']);
                if(!empty($video)){
                    $key = getKeyByPath($video);
                    $data[$key] = $video;
                }
                $img = trim($item['img']);
                if(!empty($img)){
                    $key = getKeyByPath($img);
                    $data[$key] = $img;
                }
            }elseif($item['type'] == self::TEXT){
                $imgs = getImageUrlFromText($item['value']);
                if(!empty($imgs)){
                    $data = array_merge($data, $imgs);
                }
                $videos = getVideoUrlFromText($item['value']);
                if(!empty($videos)){
                    $data = array_merge($data, $videos);
                }
            }
        }
        return $data;
    }

    // 解析单页块元素内容,把JSON化的内容转为数组格式
    public static function analysisBlock(array $items)
    {
        $arrayToJsonTypes = [4];
        if(count($items) > 0) {
            foreach ($items as &$item) {
                if(in_array($item['type'], $arrayToJsonTypes)) {
                    $item['value'] = empty($item['value']) ? [] : json_decode($item['value'], true);
                }
            }
            unset($item);
        }
        return $items;
    }

    // 按块元素的栏目分类和关键字进行分组
    public static function convertGroupByCategory(array $items)
    {
        $data = [];
        foreach($items as $item){
            $data[$item['category_id']][$item['keyword']] = $item;
        }
        return $data;
    }

    // 按块元素的关键字进行分组
    public static function convertGroupByKeyword(array $items)
    {
        $data = [];
        foreach($items as $item){
            $data[$item['keyword']] = $item;
        }
        return $data;
    }

    //根据栏目ID获取块列表
    public static function getByCategoryIds($categoryIds)
    {
        if(!is_array($categoryIds) || empty($categoryIds)){
            return [];
        }
        $items = self::whereIn('category_id', $categoryIds)
            ->order('category_id', 'asc')
            ->order('sort', 'asc')
            ->select()
            ->toArray();
        if(empty($items)){
            return [];
        }
        return self::convertGroupByCategory($items);
    }
}