<?php

namespace App\Imports;

use App\Http\Models\PrKeywordExtend;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\DB;

use Maatwebsite\Excel\Concerns\Importable;
use Maatwebsite\Excel\Concerns\ToCollection;


class KeywordExtend implements ToCollection
{
    use Importable;
    protected $siteId;
    protected $oldId;

    public function __construct($siteId, $oldId)
    {
        $this->siteId = $siteId;
        $this->oldId = $oldId;
    }


//
//    const FIELD_MAP = [
//        0 => 'keyword',
//        1 => 'chinese_keyword',
//        2 => 'page_url',
//        3 => 'search_num',
//    ];


    const FIELD_MAP = [
        0 => 'keyword',
        1 => 'search_num',
        2 => 'index_num',
        3 => 'land_page',
    ];

    public function collection(Collection $collections)
    {

        $all = collect([]);
        $rankKeyword=collect([]);

        $rankConnection = DB::connection('rank');
        $maxSn = $rankConnection->table('project_keyword')->where(['project_id' => $this->oldId])->max('sn') ?? 0;

        foreach ($collections as $key => $collection) {

            if ($key < 1) {
                continue;
            }

            $temp = $this->fieldMap($collection);
            if (mb_strlen($temp['keyword']) < 1) {
                continue;
            }
            $all->push($temp);


            $rank=$this->fieldMapRank($collection);
            $maxSn++;
            $rankKeyword->push($rank+['sn' => $maxSn]);
        }

        $allItems = $all->chunk(2500)->toArray();
        foreach ($allItems as $item) {
            PrKeywordExtend::query()->insert($item);
        }

        $allRank=$rankKeyword->chunk(2500)->toArray();

        foreach ($allRank as $item) {
            $rankConnection->table('project_keyword')->insert($item);
        }
    }


    public function fieldMapRank($collect): array
    {

        $result = [
            'google_rank' => 9999,
            'allintitle' => -1,
            'sync_time' => strtotime('+1 day'),
            'project_id' => $this->oldId
        ];

        foreach ($collect as $inx => $val) {
            if (empty(self::FIELD_MAP[$inx])) continue;

            if ($inx==0) {
                $result['keyword']=$val;
                $result['chinese_keyword']='';
            }
            if ($inx==1) {
                $result['search_num']=intval($val);
            }
            if ($inx==3) {
                $result['page_url']=$val;
            }
        }
        return $result;
    }

    public function fieldMap($collect): array
    {
//        $ym = date('Ym', strtotime('first day of -1 month'));
        $ym = date('Ym');
        $result = [
            'old_id' => $this->oldId,
            'ym' => $ym,
            'site_id' => $this->siteId,
            'created_at' => date('Y-m-d H:i:s'),
            'updated_at' => date('Y-m-d H:i:s'),
        ];

        foreach ($collect as $inx => $val) {
            if (empty(self::FIELD_MAP[$inx])) continue;
            if (in_array(self::FIELD_MAP[$inx], ['index_num', 'search_num'])) {
                $result[self::FIELD_MAP[$inx]] = intval($val);
            } else {
                $result[self::FIELD_MAP[$inx]] = $val;
            }

        }
        return $result;
    }

}