<?php

class crowdview{
	
	public function __construct(){
		
		include "lib/backend.php";
		$this->backend = new backend("crowdview");
		
		include "lib/heckhtml.php";
		$this->heckhtml = new heckhtml();
	}
	
	public function getfilters($page){

		return [];
	}
	
	private function get($proxy, $url, $get = []){
		
		$curlproc = curl_init();
		
		if($get !== []){
			$get = http_build_query($get);
			$url .= "?" . $get;
		}
		
		curl_setopt($curlproc, CURLOPT_URL, $url);
		
		curl_setopt($curlproc, CURLOPT_ENCODING, ""); // default encoding
		curl_setopt($curlproc, CURLOPT_HTTPHEADER,
			["User-Agent: " . config::USER_AGENT,
			"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
			"Accept-Language: en-US,en;q=0.5",
			"Accept-Encoding: gzip",
			"DNT: 1",
			"Connection: keep-alive",
			"Upgrade-Insecure-Requests: 1",
			"Sec-Fetch-Dest: document",
			"Sec-Fetch-Mode: navigate",
			"Sec-Fetch-Site: none",
			"Sec-Fetch-User: ?1"]
		);
		
		curl_setopt($curlproc, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($curlproc, CURLOPT_SSL_VERIFYHOST, 2);
		curl_setopt($curlproc, CURLOPT_SSL_VERIFYPEER, true);
		curl_setopt($curlproc, CURLOPT_CONNECTTIMEOUT, 30);
		curl_setopt($curlproc, CURLOPT_TIMEOUT, 30);
		
		$this->backend->assign_proxy($curlproc, $proxy);
		
		$data = curl_exec($curlproc);
		
		if(curl_errno($curlproc)){
			
			throw new Exception(curl_error($curlproc));
		}
		
		curl_close($curlproc);
		return $data;
	}
	
	public function web($get){
		
		$search = $get["s"];
		if(strlen($search) === 0){
			
			throw new Exception("Search term is empty!");
		}
		
		$proxy = $this->backend->get_ip();
		
		try{
			$json = $this->get(
				$proxy,
				"https://crowdview-next-js.onrender.com/api/search-v3",
				[
					"query" => $search
				]
			);
		}catch(Exception $error){
			
			throw new Exception("Failed to fetch JSON");
		}
		
		$out = [
			"status" => "ok",
			"spelling" => [
				"type" => "no_correction",
				"using" => null,
				"correction" => null
			],
			"npt" => null,
			"answer" => [],
			"web" => [],
			"image" => [],
			"video" => [],
			"news" => [],
			"related" => []
		];
		
		$json = json_decode($json, true);
		
		if($json === NULL){
			
			throw new Exception("Failed to decode JSON");
		}
		
		foreach($json["results"] as $item){
			
			$description = explode("<b>", $item["snippet"], 2);
			
			$out["web"][] = [
				"title" => $this->sanitize($item["title"]),
				"description" => $this->sanitize($description[1]),
				"url" => $item["link"],
				"date" => strtotime($description[0]),
				"type" => "web",
				"thumb" => [
					"url" => null,
					"ratio" => null
				],
				"sublink" => [],
				"table" => []
			];
		}
		
		return $out;
	}
	
	private function sanitize($html){
		
		return
			trim(
				$this->heckhtml
				->getTextContent(
					html_entity_decode(
						$html
					)
				),
				". "
			);
	}
}