<?php

$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "testing";
$conn = new mysqli($servername, $username, $password, $dbname);

function getDataFromExternalApi ($url) {
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_POST, 0);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	$server_output = curl_exec($ch);
	curl_close($ch);
	$data = json_decode($server_output);
	return $data;
}

function multiCurlReq($urlArray, $game_week) {
	$nodes = $urlArray;
	$node_count = count($nodes);

	$curl_arr = array();
	$master = curl_multi_init();

	for($i = 0; $i < $node_count; $i++)
	{
	    $url =$nodes[$i];
	    $curl_arr[$i] = curl_init($url);
	    curl_setopt($curl_arr[$i], CURLOPT_RETURNTRANSFER, true);
	    curl_multi_add_handle($master, $curl_arr[$i]);
	}

	do {
	    curl_multi_exec($master,$running);
	} while($running > 0);


	for($i = 0; $i < $node_count; $i++)
	{
	    $results[] = curl_multi_getcontent  ($curl_arr[$i]);
	}
	$finalArray =array();
	$index = $game_week - 1;
	foreach ($results as $key => $value) {
		$a = json_decode($value);
		if($a && $a->history &&  count($a->history) > 0) {
			$a = array(
					"id" => $a->history[$index]->element,
					"points" => $a->history[$index]->total_points,
				);
		}
		else {
			$a = array(
					"id" => null,
					"points" => 0
					);
		}
		array_push($finalArray, $a);
	}
	return $finalArray;
}



function seedPlayer($allPlayerMetaData, $con) {
	$detailUrlArray = array();
	$sql = "";
	if($allPlayerMetaData && $allPlayerMetaData->elements) {
		foreach ($allPlayerMetaData->elements as $key => $value) {
		  	$url = 'https://fantasy.premierleague.com/drf/element-summary/' . $value->id;
		  	array_push($detailUrlArray, $url);
		}
		$getPlayerDetail = multiCurlReq($detailUrlArray, 1);
		foreach ($allPlayerMetaData->elements as $key => $value) {
			$playerId = $value->id;
			$singlePlayerInfo = new stdClass();
			$playerCost = $value->now_cost ? ($value->now_cost/10) : 0;
			$playingTime = $value->minutes ? $value->minutes : 0;
			$playerPoint = $getPlayerDetail[$key]['points'] ? $getPlayerDetail[$key]['points']: 0;
			$gameWeek = 1;
		    $sqlSel = "select * from players where player_id = $playerId and game_week = 1";
		    $results = $con->query($sqlSel);
	        if ($results->num_rows > 0) {
			    $sql .=  "UPDATE players set player_cost = '$playerCost', player_point= '$playerPoint', playing_time = '$playingTime' where player_id=$playerId AND game_week = 1;";
		  	}
		    else {
	      		$sql .= "INSERT INTO players (player_cost,player_point,game_week,player_id, playing_time) VALUES ('$playerCost','$playerPoint', '$gameWeek', '$playerId', '$playingTime');";
		  	}

		}
		if (mysqli_multi_query($con,$sql))
		{
		  do
		    {
		    // Store first result set
		    if ($result=mysqli_store_result($con)) {
		      // Fetch one and one row
		      while ($row=mysqli_fetch_row($result))
		        {
		         printf("%s\n",$row[0]);
		        }
		      // Free result set
		      mysqli_free_result($result);
		      }
		    }
		  while (mysqli_next_result($con));
		}
		mysqli_close($con);
	}

}

$playerUrl = "https://fantasy.premierleague.com/drf/bootstrap";
$allPlayerMetaData = getDataFromExternalApi($playerUrl);
seedPlayer($allPlayerMetaData, $conn);

?>