<?php

namespace wchat\wx\V3;

use Exception;
use JetBrains\PhpStorm\ArrayShape;
use Kiri\Client;
use Kiri\Message\Stream;
use wchat\wx\SmallProgram;

class WxV3Withdrawal extends SmallProgram
{


	use WxV3PaymentTait;


	/**
	 * @param $orderNo
	 * @param string $batch_name
	 * @param string $batch_remark
	 * @param TransferDetail[] $details
	 * @return array
	 * @throws Exception
	 */
	public function payment($orderNo, string $batch_name, string $batch_remark, array $details): array
	{
		$body = $this->create($orderNo, $batch_name, $batch_remark, $details);

		$sign = $this->signature('POST', '/v3/pay/transactions/batches', $json = json_encode($body, JSON_UNESCAPED_UNICODE));

		$client = new Client('api.mch.weixin.qq.com', 443, TRUE);
		$client->withAddedHeader('Authorization', $sign)
			->withContentType('application/json')
			->withAddedHeader('User-Agent', 'application/json')
			->withBody(new Stream($json))
			->post('/v3/pay/transactions/batches');
		$client->close();

		$json = json_decode($client->getBody(), TRUE);
		if (!isset($json['prepay_id'])) {
			throw new Exception('微信支付调用失败');
		}

		return $this->createResponse($json, $body);
	}


	#[ArrayShape(['transfer_detail_list' => "array", 'total_amount' => "int", 'total_num' => "int", 'batch_remark' => "string", 'batch_name' => "string", 'out_batch_no' => ""])]
	private function create($orderNo, string $batch_name, string $batch_remark, array $details): array
	{
		$total = 0;
		$body = ['transfer_detail_list' => []];
		$body['out_batch_no'] = $orderNo;
		$body['batch_name'] = $batch_name;
		$body['batch_remark'] = $batch_remark;
		$body['total_num'] = count($details);
		foreach ($details as $detail) {
			$total += $detail->transfer_amount;
			$body['transfer_detail_list'][] = $detail->toArray();
		}
		$body['total_amount'] = $total;
		return $body;
	}


}