<?php
include_once 'MastodonBotPHP/Mastodon.php';

/* The setup    */

$token = 'NeA2lgL7EeKQHoYcYAhOdBKtI4e9kDlrqB5f-V4kEUI'; // Token of your Mastodon welcome bot account
$base_url = 'https://bluenoser.me'; // URL of your instance (Do not include '/' at the end.)
$visibility = 'public'; // "Direct" means sending welcome message as a private message. The four tiers of visibility for toots are Public , Unlisted, Private, and Direct (default)
$language = 'en'; // en for English, zh for Chinese, etc.

$instance_user = '@useryou are using'; // @user

/*              */
// Functions
/*              */

// This function looks for the URL in a CSV file and returns the result or false.
function find_status($filename, $url) {
    $f = fopen($filename, "r");
    $result = false;
    while ($row = fgetcsv($f)) {
        if ($row[0] == $url) {
            $result = $row[1];
            break;
        }
    }
    fclose($f);
    return $result;
}


// Step 0 - Create the site URL stuff

$comment_record = 'comment_record.txt';

$postTitle = $_GET['title'];
$postURL = $_GET['url'];
$postSummary = $_GET['summary'];
$postImage = $_GET['image'];

$postImage = str_replace("\\",'/',$postImage); // I need to do this because of a "thing" in the way that photos plugin creates the URL that has a strange slash

// Step 1 - Check to see if this URL is in the text file, if so send them to the Status id there.

$status_id = find_status($comment_record, $postURL);

if ($status_id != false) {

    //301 redirect to the mastodon status
    http_response_code(301);
    header('Location: '.$base_url.'/'.$instance_user.'/'.$status_id); 
    exit;

} else {
    // Step 2 - If the URL isn't in the text file, create a new status with the post URL stuff

    $mastodon = new MastodonAPI($token, $base_url);

    // Step 2a - upload the image
    $curl_file = curl_file_create($postImage, 'image/jpg', 'imagename.jpg'); // I'm not sure what the last variable in this is for, I will figure this out later.
    
    $body = [
        'file' => $curl_file,
    ];

    $response = $mastodon->uploadMedia($body);

    $file_id = $response['id'];


    // Step 2b - Create the status
    $status_text = $postTitle. ' -> '.$postURL;

    $status_data = [
        'status'      => $status_text,
        'visibility'  => $visibility,
        'language'    => $language,
        'media_ids[]' => $file_id,
    ];

    $status_response = $mastodon->postStatus($status_data);

    // Step 3 - Update Text file

    $status_id = $status_response['id'];

    $f = fopen($comment_record, 'a');
    fputcsv($f, [$postURL, $status_id]);
    fclose($f);

    // Step 4 - Send them to the post

    // 301 redirect to the mastodon status
    http_response_code(301);
    header('Location: '.$base_url.'/'.$instance_user.'/'.$status_id); 
    exit;
}

?>