<?php

namespace backend\models;

use Yii;
use yii\base\Model;

/**
 * UploadForm Model
 * 上传模型
 * -------------------
 * @version 1.0.0
 * @author coldwind
 */

class UploadForm extends Model
{
	/**
	 * @var UploadedFile file attribute
	 */
	public $file;

	/**
	 * @return array the validation rules.
	 */
	public function rules()
	{
		return [
			['file', 'file'],
		];
	}

	/**
	 * upload()
	 * 上传
	 * ----------------
	 * @return Boolean
	 * @author coldwind
	 */
	public function getData() {
		if ($path = $this->upload()) {
			return $this->getCsv($path);
		}
	}

	/**
	 * upload()
	 * 上传
	 * ----------------
	 * @return Boolean
	 * @author coldwind
	 */
	protected function upload() {
		$name = date("Ymd", time()). '_'. Yii::$app->security->generateRandomString(5). '.'. 'csv';
		$path = Yii::$app->getBasePath() . "/web/upload". DIRECTORY_SEPARATOR. 'csv'. DIRECTORY_SEPARATOR. $name;
		if ($this->file->saveAs($path)) {
			return $path;
		}
		return false;
	}

	/**
	 * upload()
	 * 上传
	 * ----------------
	 * @return object
	 * @author coldwind
	 */
	protected function getCsv($path) {
		$handle = fopen($path, 'r');
		$uid = [];
		$key = null;
		while (! feof($handle)) {
			$file = fgetcsv($handle,0, ',');
			if (is_array($file)) {
				if (empty($key)) {
					$key = array_search('uid', $file);
				}
				$uid[] = $file[$key];
			}
		}
		unset($uid[0]);
		fclose($handle);
		return $uid;
	}
}