<?php

namespace App\Imports;

use App\Models\WXPopulation;
use Maatwebsite\Excel\Concerns\ToModel;
use Maatwebsite\Excel\Concerns\WithStartRow;
use Maatwebsite\Excel\Concerns\WithUpserts;

class WXPopulationInfoImport implements ToModel, WithUpserts, WithStartRow
{
    private $rows = 0;

    /**
     * @param array $row
     *
     * @return \Illuminate\Database\Eloquent\Model|null
     */
    public function model(array $row)
    {
        // 跳过空数据
        if (empty($row[0])) return null;

        $fieldParam = array(
            'advertiser_id' => $row[0], 'orientation_id' => $row[2], 'orientation_name' => $row[1]
        );

        ++$this->rows;
        return new WXPopulation($fieldParam);
    }

    /**
     * @return string|array
     */
    public function uniqueBy()
    {
        return ['advertiser_id', 'orientation_id'];
    }

    /**
     * @return int
     */
    public function startRow(): int
    {
        return 3;
    }

    public function getRowCount(): int
    {
        return $this->rows;
    }
}