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<?php
/**
* Class representing the page for importing gigs.
*
* @package giglogadmin
*
* SPDX-FileCopyrightText: 2021 Andrea Chirulescu <andrea.chirulescu@gmail.com>
* SPDX-FileCopyrightText: 2021 Harald Eilertsen <haraldei@anduin.net>
*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
if ( ! class_exists( 'GiglogAdmin_ImportGigsPage' ) ) {
require_once __DIR__ . '/../../class-giglogadmin-concert.php';
require_once __DIR__ . '/../../class-giglogadmin-venue.php';
class GiglogAdmin_ImportGigsPage {
static function render_html(): void {
?>
<div class="wrap">
<h1>Import gigs</h1>
<p>Import gig data from a tab separated data file.</p>
<form action="<?php menu_page_url( 'giglog_import' ); ?>" enctype="multipart/form-data" method="post">
<?php wp_nonce_field( plugin_basename( __FILE__ ), 'giglog_import_nonce' ); ?>
<label for="giglog_import_file">File: </label>
<input type="file" name="giglog_import_file" id="giglog_import_file">
<?php submit_button(); ?>
</form>
</div>
<?php
}
static function submit_form(): void {
if ( 'POST' === $_SERVER['REQUEST_METHOD'] && current_user_can( 'upload_files' ) && ! empty( $_FILES['giglog_import_file']['tmp_name'] ) ) {
if ( isset( $_POST['giglog_import_nonce'] ) && wp_verify_nonce( $_POST['giglog_import_nonce'], plugin_basename( __FILE__ ) ) ) {
self::process_upload( $_FILES['giglog_import_file'] );
} else {
header( "{$_SERVER['SERVER_PROTOCOL']} 403 Forbidden" );
wp_die( 'CSRF validation failed.', 403 );
}
}
}
/**
* Imports concert data from a file with tab separated values.
*
* The file must contain the following columns each separated by _one_
* tab character:
*
* 1. Concertname
* 2. Venuename or numeric venue id
* 3. Concert date
* 4. Ticket link
* 5. Event info link
*
* Empty lines are ignored.
*
* @return void
*
* @param array<int, mixed> $file
*/
static function process_upload( array $file ): void {
$fo = new SplFileObject( $file['tmp_name'] );
$importerrors = array();
$rid = 0;
foreach ( $fo as $line ) {
$rid++;
$line = trim( $line );
if ( ! empty( $line ) ) {
try {
self::process_line( $line );
} catch ( Exception $e ) {
$importerrors[] = "Error importing line {$rid}: {$e->getMessage()}";
}
}
}
if ( ! empty( $importerrors ) ) {
echo implode( '<br>', $importerrors );
} else {
echo ( 'All rows imported ok' );
}
}
static function process_line( string $line ) : void {
$resultArray = explode( "\t", $line );
// unsure if this is needed, considering we are also checking if
// each individual important field is missing. But if they are not
// replaced by tabs, then everything gets shifted so probably best
// to check if a value is empty and NOT replaced by tab
if ( count( $resultArray ) < 6 ) {
throw new Exception( 'missing a field' );
}
if ( ! preg_match( '/\d{4}\-\d{2}-\d{2}/', $resultArray[3] ) ) {
throw new Exception( 'invalid date: ' . esc_html( $resultArray[3] ) );
}
if ( empty( trim( $resultArray[0] ) ) ) {
throw new Exception( 'missing concert name' );
}
if ( empty( trim( $resultArray[1] ) ) ) {
throw new Exception( 'missing venue' );
}
if ( empty( trim( $resultArray[2] ) ) ) {
throw new Exception( 'missing city' );
}
$condate = date( 'Y-m-d', strtotime( $resultArray[3] ) );
if ( $condate < date( 'Y-m-d' ) ) {
throw new Exception( 'has date in the past: ' . esc_html( $resultArray[3] ) );
}
$cname = trim( $resultArray[0] );
$venue = trim( $resultArray[1] );
if ( is_numeric( $venue ) ) {
$venue = GiglogAdmin_Venue::get( intval( $venue ) );
if ( ! $venue ) {
throw new Exception( "invalid venue id: {$venue}" );
}
} else {
$venue = GiglogAdmin_Venue::find_or_create( $venue, trim( $resultArray[2] ) );
}
$ticketlink = trim( $resultArray[4] );
$eventlink = trim( $resultArray[5] );
GiglogAdmin_Concert::create( $cname, $venue->id(), $condate, $ticketlink, $eventlink );
}
}
}
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