<?php

namespace wchat\base;

use Kiri\Client;
use wchat\common\Multiprogramming;
use wchat\common\Result;

/**
 * Class Template
 */
abstract class Template extends Multiprogramming
{


	private array $keywords = [];
	private string $templateId = '';
	private string $formId = '';
	private string $openId = '';
	private string $page = 'pages/index/index';
	private string $emphasis_keyword = '';

	/**
	 * @param array $keywords
	 */
	public function setKeywords(array $keywords)
	{
		$this->keywords = $keywords;
	}

	/**
	 * @param $templateId
	 */
	public function setTemplateId($templateId)
	{
		$this->templateId = $templateId;
	}

	/**
	 * @param $formId
	 */
	public function setFormId($formId)
	{
		$this->formId = $formId;
	}

	/**
	 * @param $openId
	 */
	public function setOpenId($openId)
	{
		$this->openId = $openId;
	}

	/**
	 * @param $page
	 */
	public function setPage($page)
	{
		$this->page = $page;
	}

	/**
	 * @param $emphasis_keyword
	 */
	public function setEmphasisKeyword($emphasis_keyword)
	{
		$this->emphasis_keyword = $emphasis_keyword;
	}

    /**
     * @param $index
     * @param $context
     * @param string $color
     */
	public function replaceKeyword($index, $context, string $color = '')
	{
		if (empty($color)) {
			$color = '#000';
		}
		$this->keywords['keyword' . $index] = [
			'value' => $context,
			'color' => $color
		];
	}


	/**
	 * @param $color
	 * @param $context
	 */
	public function addKeyword($context, $color = null)
	{
		if (empty($color)) {
			$color = '#000';
		}
		$this->keywords['keyword' . (count($this->keywords) + 1)] = [
			'value' => $context,
			'color' => $color
		];
	}

	abstract public function getUrl();

	abstract public function getHost();

	/**
	 * @return Result
	 * @throws \Exception
	 *
	 * 奴隶交易通知
	 */
	public function sendTemplate(): Result
	{
		$access_token = $this->payConfig->getAccessToken();
		if (empty($access_token)) {
			throw new \Exception('request access_token con\'t null.');
		}

		$params = [
			"touser"      => $this->openId,
			"template_id" => $this->templateId,
			"page"        => $this->page,
			"form_id"     => $this->formId,
			"data"        => $this->keywords,
		];

		if (!empty($this->emphasis_keyword)) {
			$params['emphasis_keyword'] = $this->emphasis_keyword;
		}

		$this->reset($result);

		$client = new Client($this->getHost(), 443, true);
		$client->withHeader(['Content-Type' => 'application/json; charset=utf-8']);

        $proxyHost = $this->payConfig->getProxyHost();
        $proxyPort = $this->payConfig->getProxyPort();
        if (!empty($proxyHost) && $proxyPort > 0) {
            $client->withProxyHost($proxyHost)->withProxyPort($proxyPort);
        }

        $client->post($this->getUrl() . '?access_token=' . $access_token, $params);
		$client->close();

		if (!in_array($client->getStatusCode(), [101, 200, 201])) {
			return new Result(code: 505, message: $client->getBody());
		}
		$body = json_decode($client->getBody(), true);
		if (isset($body['errcode']) && $body['errcode'] != 0) {
			return new Result(code: $body['errcode'], message: $body['errmsg']);
		}
		return new Result(code: 0, data: $body);
	}

	/**
	 * @param $result
	 * @return void
	 */
	private function reset($result): void
	{
		$this->openId = '';
		$this->keywords = [];
		$this->formId = '';
		$this->templateId = '';
		$this->page = '';
	}

}