<?php
session_start();
if(isset($_REQUEST['setting']))
{
	if(isset($_REQUEST['OAUTH2_CLIENT_ID']))
	{
		$list = array('OAUTH2_CLIENT_ID' => $_REQUEST['OAUTH2_CLIENT_ID'], 'OAUTH2_CLIENT_SECRET' => $_REQUEST['OAUTH2_CLIENT_SECRET']);
		$json = json_encode($list);
		file_put_contents('auth_get_key_kien.txt', $json);
		echo 'Thiết lập thành công';
	}
	?>
	<form method="POST" action="http://music.camcaophong.biz/get_key_kien.php?setting">
		CLIENT ID <input type="text" name="OAUTH2_CLIENT_ID"/><br/>
		CLIENT SECRET <input type="text" name="OAUTH2_CLIENT_SECRET"/><br/>
		<input type="submit" value="Gửi"/>
	</form>
	<?php
}
else
{
	$list = json_decode(file_get_contents('auth_get_key_kien.txt'), true);
	require_once dirname(__FILE__).'/GoogleClientApi/Google_Client.php';
	require_once dirname(__FILE__).'/GoogleClientApi/contrib/Google_YouTubeService.php';
	$OAUTH2_CLIENT_ID = $list['OAUTH2_CLIENT_ID']; // Enter your Client ID here
	$OAUTH2_CLIENT_SECRET = $list['OAUTH2_CLIENT_SECRET']; // Enter your Client Secret here
	$REDIRECT = filter_var('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'], FILTER_SANITIZE_URL);
	$APPNAME = "Trinh Lam Tool 2";

	$client = new Google_Client();
	$client->setClientId($OAUTH2_CLIENT_ID);
	$client->setClientSecret($OAUTH2_CLIENT_SECRET);
	$client->setScopes(array('https://www.googleapis.com/auth/youtube',
								'https://www.googleapis.com/auth/youtube.force-ssl',
								'https://www.googleapis.com/auth/youtube.readonly',
								'https://www.googleapis.com/auth/youtube.upload',
								'https://www.googleapis.com/auth/youtubepartner',
								'https://www.googleapis.com/auth/youtubepartner-channel-audit'));
	$client->setRedirectUri($REDIRECT);
	$client->setApplicationName($APPNAME);
	$client->setAccessType('offline');
	$client->setApprovalPrompt('force');
	$service = new Google_YouTubeService($client);
	if (isset($_GET['code'])) {
		if (strval($_SESSION['state']) !== strval($_GET['state'])) {
			die('The session state did not match.');
		}

		$client->authenticate($_GET['code']);
		$_SESSION['token'] = $client->getAccessToken();
	}
	if (isset($_SESSION['token']) && !isset($_REQUEST['load'])) {
		$client->setAccessToken($_SESSION['token']);
		$list_json = json_decode($_SESSION['token']);
		$list = array(
			'ClientId' => $list['OAUTH2_CLIENT_ID'],
			'ClientSecret' => $list['OAUTH2_CLIENT_SECRET'],
			'AccessToken' => $list_json->access_token,
			'RefreshToken' => $list_json->refresh_token
		);
		echo "<textarea style='width: 500px; height: 400px;'>" . json_encode($list) . "</textarea>";
	}

	// Check to ensure that the access token was successfully acquired.
	if ($client->getAccessToken()) {
		try {
			// Call the channels.list method to retrieve information about the
			// currently authenticated user's channel.
			$channelsResponse = $youtube->channels->listChannels('contentDetails', array('mine' => 'true'));

			$htmlBody = '';
			foreach ($channelsResponse['items'] as $channel) {
				// Extract the unique playlist ID that identifies the list of videos
				// uploaded to the channel, and then call the playlistItems.list method
				// to retrieve that list.
				$uploadsListId = $channel['contentDetails']['relatedPlaylists']['uploads'];

				$playlistItemsResponse = $youtube->playlistItems->listPlaylistItems('snippet', array(
					'playlistId' => $uploadsListId,
					'maxResults' => 50
				));

				$htmlBody .= "<h3>Videos in list $uploadsListId</h3><ul>";
				foreach ($playlistItemsResponse['items'] as $playlistItem) {
					$htmlBody .= sprintf('<li>%s (%s)</li>', $playlistItem['snippet']['title'],
						$playlistItem['snippet']['resourceId']['videoId']);
				}
				$htmlBody .= '</ul>';
			}
		} catch (Google_ServiceException $e) {
			$htmlBody .= sprintf('<p>A service error occurred: <code>%s</code></p>',
				htmlspecialchars($e->getMessage()));
		} catch (Google_Exception $e) {
			$htmlBody .= sprintf('<p>An client error occurred: <code>%s</code></p>',
				htmlspecialchars($e->getMessage()));
		}

		echo $htmlBody;
		$_SESSION['token'] = $client->getAccessToken();
	} else {
		$state = mt_rand();
		$client->setState($state);
		$_SESSION['state'] = $state;

		$authUrl = $client->createAuthUrl();
		header("Location: $authUrl"); /* Redirect browser */
		exit();
	}
}
?>