commit e57af3ad361c1c63b8c979739493aa03eca9b58c
Author: Max Nuding <max.nuding@icloud.com>
Date:   Thu May 15 14:25:39 2025 +0200

    initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..02b773c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+history.json
\ No newline at end of file
diff --git a/Check_PCA.php b/Check_PCA.php
new file mode 100644
index 0000000..c57a637
--- /dev/null
+++ b/Check_PCA.php
@@ -0,0 +1,735 @@
+<?php
+
+namespace PCA;
+
+function write_pca_log($string, $level = 'INFO')
+{
+    echo '[' . $level . '] ' . date('H:i:s') . ' ' . $string . PHP_EOL . '<br />';
+    file_put_contents(
+        get_log_file(),
+        '[' . $level . '] ' . date('H:i:s') . ' ' . $string . PHP_EOL,
+        FILE_APPEND | LOCK_EX
+    );
+}
+
+function get_log_file()
+{
+    return realpath(__DIR__ . '/../pca_logs') . '/pca.log';
+    //return realpath(__DIR__ . '/../pca_logs') . '/' . date('Y-m-d') . '.log';
+}
+
+class User
+{
+    public $user_name;
+    public $name;
+    public $number_posts;
+    public $following;
+    public $follows_bot;
+    public $last_club_notification = '';
+
+    private static function clean_api_response($api_reponse)
+    {
+        $data = [];
+        if (array_key_exists('data', $api_reponse)) {
+            $data = $api_reponse['data'];
+        } else {
+            $data = $api_reponse;
+        }
+        return $data;
+    }
+
+    public function __construct($api_reponse)
+    {
+        $data = self::clean_api_response($api_reponse);
+        $this->user_name = '@' . $data['username'];
+        $this->number_posts = preg_replace('/\s+/', '', $data['counts']['posts']);
+        $this->follows_bot = $data['follows_you'];
+        $this->name = array_key_exists('name', $data) ? $data['name'] : '';
+    }
+
+    public static function get_users_from_api_reponse($api_reponse)
+    {
+        $data = self::clean_api_response($api_reponse);
+        $users = [];
+        // Single user
+        if (count(array_filter(array_keys($data), 'is_string')) > 0) {
+            $users[] = new User($data);
+        } else {
+            // Multiple users
+            foreach ($data as $key => $value) {
+                $users[] = new User($value);
+            }
+        }
+        return $users;
+    }
+
+    public function get_highest_pca($clubs)
+    {
+        $key = $this->get_next_pca_key($clubs) - 1;
+        if ($key == -1) {
+            return [];
+        }
+        return $clubs[$key];
+    }
+
+    public function get_next_pca($clubs)
+    {
+        return $clubs[$this->get_next_pca_key($clubs)];
+    }
+
+    private function get_next_pca_key($clubs)
+    {
+        if (preg_replace('/\s+/', '', $clubs[0]['post_count']) > $this->number_posts
+        ) {
+            return 0;
+        }
+        foreach ($clubs as $key => $club) {
+            if (preg_replace('/\s+/', '', $club['post_count']) > $this->number_posts
+            ) {
+                return $key;
+            }
+        }
+    }
+}
+
+class API
+{
+    public $access_token = '';
+    private static $api_endpoint = 'https://api.pnut.io/v1';
+    public $max_posttext_length = 256;
+    private static $settings_file_location = __DIR__
+    . '/..'
+    . '/pca_settings/user_settings.json';
+    private static $settings = [];
+    private static $default_notification_text = 'Congratulations {user.username}, you are now a member of #{pca.name} {pca.emoji} ({pca.postcount} posts)! Next: {nextpca.emoji} at {nextpca.postcount} posts';
+    private static $notification_tokens = [
+    '{user.username}',
+    '{user.name}',
+    '{pca.name}',
+    '{pca.emoji}',
+    '{pca.postcount}',
+    '{nextpca.name}',
+    '{nextpca.emoji}',
+    '{nextpca.postcount}',
+    '{posts_to_pca}',
+    ];
+    public $me;
+
+    public function init()
+    {
+        write_pca_log('');
+        write_pca_log('=================================');
+        write_pca_log('');
+        $this->max_posttext_length = $this->get_data(
+            'https://api.pnut.io/v1/sys/config'
+        )['data']['post']['max_length'];
+        $this->me = User::get_users_from_api_reponse(
+            $this->get_data('https://api.pnut.io/v1/users/me')
+        )[0];
+        write_pca_log('Hi, my name is ' . $this->me->user_name, 'DEBUG');
+        $sapi_type = php_sapi_name();
+        $mode = !empty($_SERVER['DOCUMENT_ROOT']) &&
+        (substr($sapi_type, 0, 3) == 'cli' || empty($_SERVER['REMOTE_ADDR']))
+        ? 'Debug'
+        : 'Production';
+        write_pca_log('I am currently in  ' . $mode . ' mode');
+        if (!file_exists(self::$settings_file_location)) {
+            file_put_contents(self::$settings_file_location, json_encode([]));
+            write_pca_log(
+                'No user settings file found. Creating empty one at ' .
+                self::$settings_file_location
+            );
+        }
+        self::$settings = json_decode(
+            file_get_contents(self::$settings_file_location),
+            true
+        );
+        write_pca_log('User settings file loaded');
+    }
+
+    private function get_data(
+        $endpoint,
+        $parameters = [],
+        $method = 'GET',
+        $contenttype = 'application/x-www-form-urlencoded',
+        $force = false
+    ) {
+        write_pca_log('Making request to pnut API at ' . $endpoint);
+        $postdata = $this->build_query_string($parameters);
+        if ($contenttype == 'application/json') {
+            $postdata = json_encode($parameters);
+        }
+        $context_options = [
+        'http' => [
+        'method' => $method,
+        'header' =>
+          'Content-type: ' .
+          $contenttype .
+          "\r\n" .
+          'Authorization: Bearer ' .
+          $this->access_token,
+        'content' => $postdata,
+        ],
+        ];
+        $sapi_type = php_sapi_name();
+        if (!$force
+            && !empty($_SERVER['DOCUMENT_ROOT'])
+            && (substr($sapi_type, 0, 3) == 'cli' || empty($_SERVER['REMOTE_ADDR']))
+            && $method == 'POST'
+        ) {
+            write_pca_log(
+                'Running from shell instead of server. Debug mode assumed. Not submitting POST requests to server!',
+                'DEBUG'
+            );
+            write_pca_log(
+                'Would have posted if run on a server: ' . $postdata,
+                'DEBUG'
+            );
+            return;
+        }
+        $context = stream_context_create($context_options);
+        $response = @file_get_contents($endpoint, false, $context);
+        if ($response === false) {
+            write_pca_log('Received no or invalid response from server', 'ERROR');
+            return [
+            'meta' => ['code' => '401', 'error_message' => 'Invalid request'],
+            ];
+        }
+        $resp_dict = json_decode($response, true);
+        write_pca_log(
+            'Got server response. Meta: ' . json_encode($resp_dict['meta'])
+        );
+        $response_code = $resp_dict['meta']['code'];
+        // Success
+        if ($response_code >= 200 && $response_code <= 208) {
+            return $resp_dict;
+        } else {
+            write_pca_log(
+                'Received error-response from server. ' .
+                json_encode($resp_dict['meta']),
+                'ERROR'
+            );
+            // die();
+        }
+    }
+
+    public function get_messages($clubs)
+    {
+        $num_unread_endpoint =
+        self::$api_endpoint . '/users/me/channels/num_unread/pm';
+        $num_unread_pms = $this->get_data($num_unread_endpoint)['data'];
+        $messages = []; //Keys: username, values: message-array of messages by the user
+        write_pca_log($num_unread_pms . ' unread PMs');
+        if ($num_unread_pms > 0) {
+            $channels_endpoint = self::$api_endpoint .
+            '/users/me/channels/subscribed?include_read=0&channel_types=io.pnut.core.pm';
+            $channels = $this->get_data($channels_endpoint);
+            foreach ($channels['data'] as $channel) {
+                write_pca_log('Channel: ' . $channel['id'], 'DEBUG');
+                $messages_endpoint =
+                self::$api_endpoint .
+                '/channels/' .
+                $channel['id'] .
+                '/messages?include_deleted=0&include_html=0&include_client=0&include_marker=1';
+                $unread_messages = $this->get_data($messages_endpoint);
+                $msg = [];
+                $sender = '';
+                $last_read = $unread_messages['meta']['marker']['last_read_id'];
+                foreach ($unread_messages['data'] as $message) {
+                    if ($message['id'] <= $last_read) {
+                        //Stop when reaching already read messages
+                        write_pca_log(
+                            'Message ' .
+                            $message['id'] .
+                            'is <= last read message ' .
+                            $last_read .
+                            '. Skipping rest of the messages.',
+                            'DEBUG'
+                        );
+                          break;
+                    }
+                    $sender_tmp = $message['user']['username'];
+                    if (substr($this->me->user_name, 1) == $sender_tmp) {
+                        //Ignore messages sent by the bot
+                        write_pca_log(
+                            'Ignoring message ' .
+                            $message['id'] .
+                            ', because it was sent by myself',
+                            'DEBUG'
+                        );
+                        continue;
+                    }
+                    $sender = $sender_tmp;
+                    $message_text = $message['content']['text'];
+                    $msg[] = $message['content']['text'];
+                    write_pca_log(
+                        'Message from ' . $sender . ': ' . $message_text,
+                        'DEBUG'
+                    );
+                }
+                if ($sender != '') {
+                    $messages[$sender] = $msg;
+                }
+            }
+        }
+        return $messages;
+    }
+
+    public function send_message($user, $message)
+    {
+        $send_message_endpoint =
+        self::$api_endpoint . '/channels/pm/messages?update_marker=1';
+        $parameters = ['text' => $message, 'destinations' => ['@' . $user]];
+        $this->get_data(
+            $send_message_endpoint,
+            $parameters,
+            'POST',
+            'application/json',
+            $user == 'hutattedonmyarm'
+        );
+    }
+
+    public function set_notification_text_template($user_id, $text)
+    {
+        // echo json_encode(self::$settings);
+        self::$settings[$user_id] = $text;
+        $this->save_settings();
+    }
+
+    public function get_notification_text_template($user_id)
+    {
+        $notification_text = API::$default_notification_text;
+        if (array_key_exists($user_id, self::$settings)) {
+            write_pca_log(
+                $user_id .
+                ' has custom settings: ' .
+                json_encode(self::$settings[$user_id])
+            );
+            $notification_text = self::$settings[$user_id];
+        } else {
+            write_pca_log($user_id . ' does not have custom settings!');
+        }
+        return $notification_text;
+    }
+
+    private function build_notification_text(
+        $user,
+        $clubs,
+        $current_pca,
+        $next_pca
+    ) {
+        $notification_text = $this->get_notification_text_template(
+            $user->user_name
+        );
+
+        $token_values = [
+        $user->user_name,
+        $user->name,
+        $current_pca['pca'],
+        $current_pca['emoji'],
+        $current_pca['post_count'],
+        $next_pca['pca'],
+        $next_pca['emoji'],
+        $next_pca['post_count'],
+        $next_pca['post_count'] - $user->number_posts,
+        ];
+        if (array_key_exists($user->user_name, self::$settings)) {
+            write_pca_log(
+                $user->user_name .
+                ' has custom settings: ' .
+                json_encode(self::$settings[$user->username])
+            );
+            $notification_text = self::$settings[$user->username];
+        } else {
+            write_pca_log($user->user_name . ' does not have custom settings!');
+        }
+        foreach (self::$notification_tokens as $index => $token) {
+            $notification_text = str_replace(
+                $token,
+                $token_values[$index],
+                $notification_text
+            );
+        }
+        return $notification_text;
+    }
+
+    public function reset_notification_text_for_user($user_id)
+    {
+        if (array_key_exists($user_id, self::$settings)) {
+            unset(self::$settings[$user_id]);
+            $this->save_settings();
+        }
+    }
+
+    private function save_settings()
+    {
+        file_put_contents(
+            self::$settings_file_location,
+            json_encode(self::$settings)
+        );
+    }
+    public function write_post($posttext, $reply_to = -1)
+    {
+        $post_endpoint = self::$api_endpoint . '/posts';
+        $txt = mb_strimwidth($posttext, 0, $this->max_posttext_length, '');
+        // $txt = $posttext;
+        $parameters = ['text' => $txt];
+        if ($reply_to != -1) {
+            $parameters['reply_to'] = $reply_to;
+        }
+        write_pca_log(
+            "Writing post: '" . $txt . "' => " . json_encode($parameters)
+        );
+        $this->get_data($post_endpoint, $parameters, 'POST');
+    }
+
+    public function get_user($user_id)
+    {
+        if ($user_id[0] != '@') {
+            $user_id = '@' . $user_id;
+        }
+        $user_endpoint = self::$api_endpoint . '/users/' . $user_id;
+        return new User($this->get_data($user_endpoint));
+    }
+
+    public function get_bot_followers()
+    {
+        $before_id = null;
+        $users = [];
+        do {
+            write_pca_log('Getting followers before id: ' . $before_id);
+            $followers_endpoint = self::$api_endpoint . '/users/me/followers';
+            if ($before_id != null) {
+                $followers_endpoint .= '?before_id=' . $before_id;
+            }
+            $followers_data = $this->get_data(
+                $followers_endpoint, [
+                'before_id' => $before_id,
+                ]
+            );
+            $before_id = $followers_data['meta']['min_id'];
+            $users = array_merge(
+                $users,
+                User::get_users_from_api_reponse($followers_data)
+            );
+        } while ($followers_data['meta']['more'] == '1');
+        return $users;
+    }
+
+    function build_query_string($array)
+    {
+        foreach ($array as $k => &$v) {
+            if ($v === true) {
+                $v = '1';
+            } elseif ($v === false) {
+                $v = '0';
+            }
+            unset($v);
+        }
+        return http_build_query($array);
+    }
+
+    public function notify_user($user, $clubs)
+    {
+        // Get current PCA
+        $current_pca_dict = $user->get_highest_pca($clubs);
+        $current_pca = '';
+        if (array_key_exists('pca', $current_pca_dict)) {
+            $current_pca = $current_pca_dict['pca'];
+        } else {
+            // If key doesn't exist, user hasn't reached a club yet
+            return null;
+        }
+        $last_notification = $user->last_club_notification;
+        $next_pca = $user->get_next_pca($clubs);
+        $next = [
+            'club' => $next_pca,
+            'posts_until' => $next_pca['post_count'] - $user->number_posts
+        ];
+        if ($current_pca != $last_notification) {
+            // Haven't notified about the current club yet
+            // Stitch together the post itself
+            $this->build_notification_text(
+                $user,
+                $clubs,
+                $current_pca_dict,
+                $next_pca
+            );
+            $text_components = [];
+            $posttext = 'Congratulations ' .
+            $user->user_name .
+            ', you are now a member of #' .
+            preg_replace('/\s+/', '', $current_pca) .
+            ' ' .
+            $current_pca_dict['emoji'];
+            $text_components[] = ' ('
+            . $current_pca_dict['post_count']
+            . '+ posts)!';
+            $text_components[] = ' Next: ' .
+            $next_pca['emoji'] .
+            ' at ' .
+            $next_pca['post_count'] .
+            ' posts';
+            foreach ($text_components as $component) {
+                $available_length = $this->max_posttext_length - strlen($component);
+                if (strlen($posttext) < $available_length) {
+                    $posttext .= $component;
+                }
+            }
+            /*
+            * Steps to write post as a reply to the post which made a user enter a new club:
+            * 1) Get number of user posts (we already have that info)
+            * 2) Subtract pca post count value from number posts. This will give us an offset
+            * 3) Get their posts with ?count=OFFSET&include_html=0&include_counts=0&include_client=0
+            * 4) Check if counts match. If not, get more of their posts with before_id set to the relevant ID
+            * 5) Repeat 4 until we have the correct post
+            * 6) Reply to it
+            */
+            $pca_offset = $user->number_posts - $current_pca_dict['post_count'] + 1;
+            $before_id = -1;
+            $loop_counts = 10;
+            do {
+                $ep = self::$api_endpoint .
+                '/users/' .
+                $user->user_name .
+                '/posts?count=' .
+                $pca_offset .
+                '&include_html=0&include_counts=0&include_client=0&include_deleted=1';
+                // write_pca_log($ep, "DEBUG");
+                $response = $this->get_data($ep, []);
+                $pca_offset -= count($response['data']);
+                $before_id = $response['meta']['min_id'];
+                write_pca_log(
+                    'Received ' . count($response['data']) . ' posts',
+                    'DEBUG'
+                );
+                $loop_counts--;
+                // write_pca_log("Remaining offset: ".$pca_offset);
+            } while ($pca_offset > 0 && $loop_counts > 0);
+            $reply_to = $response['data'][count($response['data']) - 1]['id'];
+            // reached mac loop iterations
+            if (!isset($reply_to) || $reply_to == 0 || $loop_counts <= 0) {
+                $reply_to = -1;
+            }
+            $del_ar = $response['data'][count($response['data']) - 1];
+            $deleted = array_key_exists('is_deleted', $del_ar) &&
+            $del_ar['is_deleted'] == 'true';
+            $log_string = 'Post that made them reach ' .
+            preg_replace('/\s+/', '', $current_pca) .
+            ': ' .
+            $reply_to .
+            '. Deleted?: ';
+            $log_string .= $deleted ? 'yes' : 'no';
+            write_pca_log($log_string);
+            $this->write_post($posttext, $reply_to);
+            $user->last_club_notification = $current_pca;
+            write_pca_log($posttext);
+            write_pca_log($log_string);
+            $now = \DateTime::createFromFormat('U.u', microtime(true));
+            $recent_changes_dict = [
+            'date' => $response['data'][count($response['data']) - 1]['created_at'],
+            'user' => $user->user_name,
+            'pca' => $current_pca,
+            'post_id' => $reply_to,
+            ];
+            $history_file = 'history.json';
+            $inp = file_get_contents($history_file);
+            $tempArray = json_decode($inp, true);
+            if ($tempArray == null) {
+                $tempArray = [];
+            }
+            array_push($tempArray, $recent_changes_dict);
+            file_put_contents($history_file, json_encode($tempArray));
+        } else {
+            // Already notified, nothing to do
+            write_pca_log(
+                $user->user_name .
+                ' has already been notified for reaching ' .
+                $current_pca
+            );
+        }
+        return $next;
+    }
+}
+// Get all clubs
+write_pca_log('');
+write_pca_log('');
+write_pca_log('');
+write_pca_log('');
+write_pca_log('Log file: ' . get_log_file());
+$clubs = json_decode(file_get_contents('https://pca.phlaym.net/pca.php'), true);
+write_pca_log('Found clubs: ' . implode(', ', array_column($clubs, 'pca')));
+// $last_notification_file = '../last_notification.json';
+$last_notification_file_dir = realpath(__DIR__ . '/../pca_settings');
+$last_notification_file_name = '/last_notification.json';
+$last_notification_file = $last_notification_file_dir
+. $last_notification_file_name;
+write_pca_log('Last notification file: ' . $last_notification_file);
+$last_notification_dict = [];
+
+if (file_exists($last_notification_file)) {
+    $last_notification_dict = json_decode(
+        file_get_contents($last_notification_file),
+        true
+    );
+    write_pca_log('Loaded last notification info from file');
+} else {
+    write_pca_log('Last notification info file could not be found');
+}
+
+// Get users
+$access_token = '-1';
+$token_file = realpath(__DIR__ . '/../pca_settings/access_token');
+if ($token_file !== false) {
+    $access_token = file_get_contents($token_file);
+    write_pca_log('Using saved authentication');
+    if ($access_token == false) {
+        write_pca_log('Re-authenticating');
+        header('Location: http://pca.phlaym.net/pnutauth.php');
+    }
+} else {
+    write_pca_log('Re-authenticating');
+    header('Location: http://pca.phlaym.net/pnutauth.php');
+}
+$api = new API();
+$api->access_token = $access_token;
+$api->init();
+$messages = $api->get_messages($clubs);
+/*
+ * Message command syntax:
+ * "Help" or "?" => prints help
+ * "Get notification text" => replies with notification text
+ * "Reset notification text" => resets to default
+ * "Set notification text" followed by a space and then the text. Replies with sample text. Available tokens see class var
+ */
+foreach ($messages as $sender => $message) {
+    $sender_obj = $api->get_user($sender);
+    foreach ($message as $msg) {
+        if (mb_strtolower($msg) == '?' || mb_strtolower($msg) == 'help') {
+            $helptext = 'Welcome to ' . $api->me->user_name . "!\n";
+            $helptext .= "The following commands are available: \n";
+            $helptext .=
+            "- 'Get notification text', which prints the current notification text for you\n";
+            $helptext .=
+            "- 'Set notification text', followed by a space and a custom notification text\n";
+            $helptext .=
+            "- 'Reset notification text', resets the notification text to the default\n";
+            $helptext .= "\n";
+            $helptext .= "		Available tokens for the custom notification text\n";
+            $helptext .= "		- '{user.username}', your username (including the @)\n";
+            $helptext .= "		- '{user.name}', your real name\n";
+            $helptext .=
+            "		- '{pca.name}', the name of the PCA you achieved, excluding the #\n";
+            $helptext .= "		- '{pca.emoji}', the emoji of the PCA you achieved\n";
+            $helptext .=
+            "		- '{pca.postcount}', the number of posts you need to achieve the PCA\n";
+            $helptext .= "		- '{nextpca.name}', the name of the next PCA\n";
+            $helptext .= "		- '{nextpca.emoji}', the emoji of the next PCA\n";
+            $helptext .=
+            " 	- '{nextpca.postcount}', the total number of posts needed for the next PCA\n";
+            $helptext .=
+            "		- '{posts_to_pca}', the number of posts missing to the next PCA\n";
+            $api->send_message($sender, $helptext);
+            //Print help text
+        } elseif (substr(mb_strtolower($msg), 0, 21) === 'get notification text') {
+            //Print current notification text for user
+            //TODO: build example notification text. Create user object and do 'get_highest_pca($clubs)' and 'get_next_pca($clubs)'
+            $api->send_message(
+                $sender,
+                "You current notification text is: \n" .
+                $api->get_notification_text_template($sender)
+            );
+        } elseif (substr(mb_strtolower($msg), 0, 23) === 'reset notification text'
+        ) {
+            //reset notification text for user to default
+            $api->reset_notification_text_for_user($sender);
+            $api->send_message(
+                $sender,
+                "Your notification text has been reset back to the default: \n" .
+                $api->get_notification_text_template($sender)
+            );
+        } elseif (substr(mb_strtolower($msg), 0, 21) === 'set notification text') {
+            $notification_text = substr($msg, 22);
+            $api->set_notification_text_template($sender, $notification_text);
+            $api->send_message(
+                $sender,
+                "Your notification text has been set to:\n" .
+                $api->get_notification_text_template($sender)
+            );
+        } else {
+            write_pca_log(
+                "Unknown command: '"
+                . $msg
+                . "' from "
+                . $sender,
+                'DEBUG'
+            );
+            $api->send_message(
+                $sender,
+                "I'm sorry, I don't recognize that. Try PMing me 'help'"
+            );
+        }
+    }
+}
+$followers = $api->get_bot_followers();
+// Check and notify. Also build notification dict
+$next_club_infos = [];
+foreach ($followers as $user) {
+    if ($last_notification_dict != null
+        && array_key_exists($user->user_name, $last_notification_dict)
+    ) {
+        write_pca_log(
+            $user->user_name .
+            ' has been notified in the past. Last time when reaching: ' .
+            $last_notification_dict[$user->user_name]
+        );
+        $user->last_club_notification = $last_notification_dict[$user->user_name];
+    } else {
+        write_pca_log($user->user_name . ' has never been notified in the past');
+    }
+    $next_club_info = $api->notify_user($user, $clubs);
+    if ($next_club_info !== null) {
+        $next_club_info['user'] = $user->user_name;
+        $next_club_infos[] = $next_club_info;
+    }
+    if ($user->last_club_notification != '') {
+        write_pca_log(
+            'Saving last notification ' .
+            $user->last_club_notification .
+            ' for user ' .
+            $user->user_name
+        );
+        $last_notification_dict[$user->user_name] = $user->last_club_notification;
+    } else {
+        write_pca_log(
+            $user->user_name .
+            ' will not be saved, as they have not reached a club yet'
+        );
+    }
+}
+usort(
+    $next_club_infos,
+    fn($a, $b) => intval($a['posts_until']) - intval($b['posts_until'])
+);
+foreach ($next_club_infos as $idx => $value) {
+    if ($idx >= 10) {
+        break;
+    }
+    write_pca_log(
+        'Next club will be: '
+        . $value['club']['pca']
+        . ' for user '
+        . $value['user']
+        . ' in '
+        . $value['posts_until']
+        . ' posts'
+    );
+}
+
+// Save changes
+write_pca_log('Saving updated notification info');
+$f = fopen($last_notification_file, 'w');
+fwrite($f, json_encode($last_notification_dict));
+fclose($f);
+
+?>
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0a3fe9f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+A small [https://pnut.io](https://pnut.io) bot.
+
+Can be pretty much cloned and run as-is,
+with the only exception being a file called clientsecret in `../pca_settings/`, containing the client secret (duh).
+If you don't have one, get it [here](https://pnut.io/dev)
+
+The bot is currently called roughly every 15 minutes by a cronjob,
+so any follows/new club memberships might take a while to show up.
+
+Used to live at https://wedro.online/Check_PCA.php,
+now lives at https://pca.phlaym.net/Check_PCA.php.
+
+Source used to be [on Github](https://github.com/hutattedonmyarm/pcabot),
+but has now moved to [my Gitea instance](https://git.phlaym.net/phlaym/pca).
+Without its history, mostly because the old repo contains a various assortment of Pnut related
+stuff and this is much more split up now.
+
+Required PHP 8.x, tested with >=8.4
diff --git a/pca.json b/pca.json
new file mode 100644
index 0000000..3177ee4
--- /dev/null
+++ b/pca.json
@@ -0,0 +1 @@
+[{"pca":"RollClub","emoji":"\ud83c\udf5e","post_count":"500","inventor":"@mlv"},{"pca":"MetalClub","emoji":"\ud83e\udd18","post_count":"666","inventor":"@hutattedonmyarm"},{"pca":"CrumpetClub","emoji":"\ud83c\udf70","post_count":"1000","inventor":"@irina"},{"pca":"NoonClub","emoji":"\ud83d\udd5b","post_count":"1200","inventor":"@samweinberg"},{"pca":"EnterpriseClub","emoji":"\ud83d\ude80","post_count":"1701","inventor":"@thedoctor,@ludolphus,@wife"},{"pca":"BitesizeCookieClub","emoji":"\ud83c\udf65","post_count":"2000","inventor":"@saket"},{"pca":"PnutClub","emoji":"\ud83e\udd5c","post_count":"2016","inventor":"@hutattedonmyarm"},{"pca":"CrunchClub","emoji":"\u260e\ufe0f","post_count":"2600","inventor":"@infodriveway"},{"pca":"MysteryScienceClub","emoji":"\ud83d\udce1","post_count":"3000","inventor":"@blt"},{"pca":"LDRClub","emoji":"\ud83d\udc5f","post_count":"5000","inventor":"@kym"},{"pca":"CPCClub","emoji":"\u2328\ufe0f","post_count":"6128","inventor":"@papierzeit"},{"pca":"IBMPCClub","emoji":"\ud83d\udcbb","post_count":"8088","inventor":"@duerig"},{"pca":"CookieClub","emoji":"\ud83c\udf6a","post_count":"10000","inventor":"@bondman"},{"pca":"SpinalTapClub","emoji":"\ud83d\udc89","post_count":"11000","inventor":"@paulyhedral"},{"pca":"BreakfastClub","emoji":"\ud83c\udf73","post_count":"20000","inventor":"@trine"},{"pca":"CaratClub","emoji":"\ud83d\udc8e","post_count":"24000","inventor":"@saket"},{"pca":"PeshawarClub","emoji":"\ud83c\udf5b","post_count":"25000","inventor":"@peemee"},{"pca":"MileHighClub","emoji":"\u2708\ufe0f","post_count":"30000","inventor":"@alicia"},{"pca":"PiClub","emoji":"\u2b55\ufe0f","post_count":"31416","inventor":"@kdfrawg"},{"pca":"TowelClub","emoji":"\ud83d\udc33","post_count":"42000","inventor":"@mps"},{"pca":"HitmanClub","emoji":"\ud83d\udd2a","post_count":"47000","inventor":"@remus"},{"pca":"BaconClub","emoji":"\ud83d\udc37","post_count":"50000","inventor":"@orangesn0w"},{"pca":"BrowncoatClub","emoji":"\ud83d\ude80","post_count":"57000","inventor":"@thedoctor"},{"pca":"CommodoreClub","emoji":"\ud83d\udd31","post_count":"64000","inventor":"@saket"},{"pca":"MotorolaClub","emoji":"\u24c2\ufe0f","post_count":"68000","inventor":"@kohlmannj"},{"pca":"TromboneClub","emoji":"\ud83c\udfb6","post_count":"76000","inventor":"@charlesg"},{"pca":"WiFiClub","emoji":"\ud83d\udcf6","post_count":"80211","inventor":"@rdo"},{"pca":"PajamaClub","emoji":"\ud83d\udcb7","post_count":"90000","inventor":"@mps"},{"pca":"TowerOfBabble","emoji":"\ud83d\uddfc","post_count":"100000","inventor":"@sham"},{"pca":"MacClub","emoji":"\ud83d\udcbb","post_count":"128000","inventor":"@fields"},{"pca":"TwitterLeaverClub","emoji":"","post_count":"140000","inventor":"@nhat"},{"pca":"GetALifeNoSrslyClub","emoji":"\ud83d\udc40","post_count":"200000","inventor":"@saket"},{"pca":"MeaninglessPostCountClub","emoji":"\ud83d\udcaf","post_count":"231568","inventor":"@cunarders"},{"pca":"ADNClub","emoji":"","post_count":"256000","inventor":"@trine"},{"pca":"PensionersClub","emoji":"\ud83c\udf97","post_count":"401000","inventor":"@sham"},{"pca":"MaglevClub","emoji":"\ud83d\ude84","post_count":"430000","inventor":"@remus"},{"pca":"LaughterClub","emoji":"\ud83e\udd23","post_count":"555000","inventor":"@saket"},{"pca":"GatesClub","emoji":"\ud83d\udcac","post_count":"640000","inventor":"@adiabatic"},{"pca":"JoyLuckClub","emoji":"\ud83c\udfa2","post_count":"888000","inventor":"@alicia"},{"pca":"MillionairesClub","emoji":"\ud83d\udcb0","post_count":"1000000","inventor":"@mps"},{"pca":"ToTheMoonClub","emoji":"\ud83d\udcc8","post_count":"21000000","inventor":"@blumenkraft"},{"pca":"GoogolplexClub","emoji":"\u03a9","post_count":"10000\u00ad000\u00ad\u00ad000000000\u00ad\u00ad000\u00ad000\u00ad000\u00ad\u00ad000\u00ad000\u00ad000\u00ad000\u00ad000\u00ad000\u00ad\u00ad000\u00ad000\u00ad000\u00ad\u00ad000\u00ad000000\u00ad\u00ad000\u00ad000\u00ad000\u00ad000\u00ad000\u00ad000\u00ad\u00ad000000\u00ad000\u00ad\u00ad000\u00ad000\u00ad000\u00ad\u00ad000","inventor":"@saket"}]
\ No newline at end of file
diff --git a/pca.php b/pca.php
new file mode 100644
index 0000000..d341b3f
--- /dev/null
+++ b/pca.php
@@ -0,0 +1,37 @@
+<?php
+$filename = 'pca.json';
+if (file_exists($filename) && (time()-720 < filemtime($filename))) {
+    echo file_get_contents($filename);
+} else {
+    output_pca($filename);
+}
+
+function output_pca($filename) {
+    $html = file_get_contents('https://wiki.pnut.io/PCA');
+    $doc = new DOMDocument();
+    $doc->loadHTML($html);
+    $tables = $doc->getElementsByTagName('table');
+
+    $pca = array();
+
+    foreach ($tables as $table) {
+       if ($table->hasAttribute('class') && $table->getAttribute('class') == 'wikitable') {
+            foreach ($table->getElementsByTagName('tr') as $childNode) {
+                $entry = $childNode->getElementsByTagName('td');         
+                if ($entry->length > 0) {
+                    $achievement["pca"] = preg_replace('/\s+/', '', $entry->item(0)->textContent);
+                    $achievement["emoji"] = preg_replace('/\s+/', '', $entry->item(1)->textContent);
+                    $achievement["post_count"] = preg_replace('/\s+/', '', $entry->item(2)->textContent);
+                    $achievement["inventor"] = preg_replace('/\s+/', '', $entry->item(3)->textContent);
+                    $pca[] = $achievement;
+                }
+            }
+       }
+    }
+    $myfile = fopen($filename, "w");
+    $file_content = json_encode($pca);
+    fwrite($myfile, $file_content);
+    fclose($myfile);
+    echo $file_content;
+}
+?>
diff --git a/pnutauth.php b/pnutauth.php
new file mode 100644
index 0000000..eba53e5
--- /dev/null
+++ b/pnutauth.php
@@ -0,0 +1,39 @@
+<?php
+$redirect_uri = 'https://pca.phlaym.net/pnutauth.php';
+$client_id = 'RwHDh73PtU0It4DdKhwh2GEagBoO1ELD';
+$client_secret = file_get_contents('../pca_settings/clientsecret');
+if (isset($_GET['code'])) {
+    $code = $_GET['code'];
+
+    // set post fields
+    $post = [
+        'client_id'     => $client_id,
+        'client_secret' => $client_secret,
+        'code'            => $code,
+        'redirect_uri'  => $redirect_uri,
+        'grant_type'    => 'authorization_code'
+    ];
+
+    $ch = curl_init('https://api.pnut.io/v1/oauth/access_token');
+    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+    curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
+
+    // execute!
+    $response = curl_exec($ch);
+
+    // close the connection, release resources used
+    curl_close($ch);
+    $resp = json_decode($response, true);
+
+    file_put_contents('../pca_settings/access_token', $resp['access_token']);
+    header('Location: https://pca.phlaym.net/Check_PCA.php');
+} else {
+    header(
+        'Location: https://pnut.io/oauth/authenticate?client_id='
+        . $client_id
+        . '&redirect_uri='
+        . urlencode($redirect_uri)
+        . '&scope=write_post,messages&response_type=code'
+    );
+}
+?>
\ No newline at end of file
diff --git a/recent_progressions.php b/recent_progressions.php
new file mode 100644
index 0000000..4eb23fd
--- /dev/null
+++ b/recent_progressions.php
@@ -0,0 +1,204 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="utf-8" />
+	<title>Pnut.io PCA progression history</title>
+	<link rel="stylesheet" href="styles/style_index.css" />
+	<script>
+		var startRow;
+		var tableID = "progressionTable"
+		var filterStyles = ["str", "<=", ">="];
+		var filterStyleIdx = 0;
+
+		function init() {
+			var numTH = document.getElementsByTagName('th').length;
+			startRow = (document.getElementsByTagName('tr').length * numTH) / (document.getElementsByTagName('td').length + numTH);
+			//Make filter row visible. (Hidden by default, so users with JS disabled don't see it)
+			var sr = document.getElementById('searchRow').style.display = "";
+			var datalist = document.getElementById('filterPCA');
+			if ('options' in datalist) {
+
+				xmlhttp=new XMLHttpRequest();
+				xmlhttp.onreadystatechange=function() {
+  					if (xmlhttp.readyState==4 && xmlhttp.status==200) {
+   					var pcaDict = JSON.parse(xmlhttp.responseText);
+   					var options = '';
+   					pcaDict.forEach(function(element) {
+   						options += '<option value="' + element.pca + '" />';
+   					});
+   					datalist.innerHTML = options;
+  					}
+ 				}
+ 				xmlhttp.open("GET","pca.json");
+ 				xmlhttp.send();
+			}
+			sortTable(3, "desc");
+		}
+
+		function isDate(d) {
+			return (d !== "Invalid Date") && !isNaN(d);
+		}
+
+		function changeIdFilterStyle(sender) {
+			filterStyleIdx++;
+			if (filterStyleIdx >= filterStyles.length) {
+				filterStyleIdx = 0;
+			}
+			sender.textContent = filterStyles[filterStyleIdx];
+			if (document.getElementById('filterPost').value != "") {
+				filter();
+			}
+		}
+
+		function sortTable(n, dir) {
+			var rows, switching, i, x, y, shouldSwitch, dir, switchcount = 0;
+			var table = document.getElementById(tableID);
+			switching = true;
+			dir = dir || "asc";
+			while (switching) {
+				switching = false;
+				rows = table.getElementsByTagName("tr");
+				for (i = startRow; i < (rows.length - 1); i++) {
+					shouldSwitch = false;
+					x = rows[i].getElementsByTagName("td")[n];
+					y = rows[i + 1].getElementsByTagName("td")[n];
+					if (dir == "asc") {
+						if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
+							shouldSwitch= true;
+							break;
+						}
+					} else if (dir == "desc") {
+						if (x.innerHTML.toLowerCase() < y.innerHTML.toLowerCase()) {
+							shouldSwitch= true;
+							break;
+						}
+					}
+				}
+				if (shouldSwitch) {
+					rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
+				  	if (switchcount == 0) {
+					  	var headers = Array.from(rows[0].getElementsByTagName("th"));
+					  	headers.forEach(function(element) {
+					  		element.innerHTML = element.innerHTML.replace('▲', '');
+					  		element.innerHTML = element.innerHTML.replace('▼', '');
+					  	});
+					  	headers[n].innerHTML += dir == 'asc' ? '▲' : '▼';
+					}
+					switching = true;
+					switchcount ++; 
+				} else {
+					if (switchcount == 0 && dir == "asc") {
+				   	dir = "desc";
+				   	switching = true;
+					}
+				}
+			}
+		}
+
+		function filter() {
+			var table = document.getElementById(tableID);
+			//Get values to filter for
+			var filterUser = document.getElementById('filterUser').value.toUpperCase();
+			var filterPCA = document.getElementById('filterPCAinput').value.toUpperCase();
+			var filterPost = document.getElementById('filterPost').value;
+			var filterDateBefore = document.getElementById('filterDateBefore').value;
+			var filterDateAfter = document.getElementById('filterDateAfter').value;
+			
+			//Only filter if entered dates are valid
+			var filterBefore = new Date(filterDateBefore);
+			var filterAfter = new Date(filterDateAfter);
+			var doFilterBefore = isDate(filterBefore);
+			var doFilterAfter = isDate(filterAfter);
+
+			var filterArray = [filterUser, filterPCA, filterPost];
+			var tr = table.getElementsByTagName("tr");
+			var tableData, i, j, userData, showRow, postIdString, postID;
+			var filterStyle = filterStyles[filterStyleIdx];
+			//Loop through every row, skipping the headers
+			for (i = startRow; i < tr.length; i++) {
+    			tableData = tr[i].getElementsByTagName("td");
+    			showRow = true;
+    			postIdString = tableData[2].children[0].innerHTML;
+    			postID = parseInt(postIdString);
+    			//Filter post ID depending on the selected filter style
+    			switch(filterStyle) {
+    				case "str":
+    					showRow = showRow && ((postIdString.toUpperCase().indexOf(filterPost) > -1));
+    					break;
+    				case "<=":
+    					showRow = showRow && !isNaN(postID) && postID <= filterPost;
+    					break;
+    				case ">=":
+    					showRow = showRow && !isNaN(postID) && postID >= filterPost;
+    					break;
+    			}
+    			//Filter other columns (except date)
+	  			for (j = 0; j < tableData.length - 2; j++) {
+	  				showRow = showRow && ((tableData[j].innerHTML.toUpperCase().indexOf(filterArray[j]) > -1));
+	  			}
+	  			//Filter date, depending on the presence and validity of the entered filter date
+	  			var postDate = new Date(tableData[tableData.length - 1].innerHTML.split(' ')[0]);
+	  			var doFilterDate = doFilterBefore || doFilterAfter;
+	  			var filterBeforeHit = !doFilterBefore || (doFilterBefore && postDate <= filterBefore)
+	  			var filterAfterHit = !doFilterAfter || (doFilterAfter && postDate >= filterAfter)
+	  			//Show/hide row
+	  			showRow = showRow && (!doFilterDate || (doFilterDate && filterBeforeHit && filterAfterHit));
+	  			tr[i].style.display = showRow ? "" : "none";
+  			}
+		}
+	</script>
+</head>
+<body onload="init()">
+	<p>Recent PCA progressions:</p>
+	<?php
+	$history_file = 'history.json';
+	if (!file_exists($history_file)) {
+		echo "None :( </body></html>";
+		die();
+	}
+	$recent_changes = json_decode(file_get_contents($history_file), true);
+	if (count($recent_changes) == 0) {
+		echo "None :( </body></html>";
+		die();
+	}
+	?>
+	<table id="progressionTable">
+		<tbody>
+			<tr>
+				<th onclick="sortTable(0)">User</th>
+				<th onclick="sortTable(1)">PCA</th>
+				<th onclick="sortTable(2)">Post ID</th>
+				<th onclick="sortTable(3)">Date</th>
+			</tr>
+			<tr id="searchRow" style="display: none;">
+				<th><input type="text" id="filterUser" onpaste="filter()" onkeyup="filter()" placeholder="Filter User"></th>
+				<th>
+					<input list="filterPCA" id="filterPCAinput" onchange="filter()" placeholder="Filter PCA">
+					<datalist id="filterPCA">
+						<option value="test"></option>
+					</datalist>
+					<!-- <input type="text" id="filterPCA" onpaste="filter()" onkeyup="filter()" placeholder="Filter PCA"> !-->
+				</th>
+				<th>
+					<button onclick="changeIdFilterStyle(this)" title="Filter post ID by&#013;str: String&#013;<= and >=: Numeric">str</button>
+					<input type="text" id="filterPost" onpaste="filter()" onkeyup="filter()" placeholder="Filter Post ID" style="width: 60%">
+				</th>
+				<th>
+					<input type="date" id="filterDateBefore" onkeyup="filter()" onchange="filter()" placeholder="Posts on/before" style=" width:45%; margin-right: 1%">
+					<input type="date" id="filterDateAfter" onkeyup="filter()" onchange="filter()" placeholder="Posts on/after" style=" width: 45%; margin-left: 1%">
+				</th>
+			</tr>
+			<?php
+			foreach ($recent_changes as $entry) {
+				$user = '<a href="https://pnut.io/'.$entry['user'].'">'.$entry['user'].'</a>';
+				$pca = $entry['pca'];
+				$datetime = new DateTime($entry['date']);
+				$date = $datetime->format('Y-m-d H:i:s P');
+				$post_id = '<a href="https://posts.pnut.io/'.$entry['post_id'].'">'.$entry['post_id'].'</a>';
+				echo '<tr><td>'.$user.'</td><td>'.$pca.'</td><td>'.$post_id.'</td><td>'.$date.'</td></tr>';
+			}
+			?>
+		</tbody>
+	</table>
+</body>
+</html>
\ No newline at end of file
diff --git a/styles/.htaccess b/styles/.htaccess
new file mode 100644
index 0000000..b42966b
--- /dev/null
+++ b/styles/.htaccess
@@ -0,0 +1,2 @@
+
+Options All -Indexes
diff --git a/styles/style_index.css b/styles/style_index.css
new file mode 100644
index 0000000..b1f8e78
--- /dev/null
+++ b/styles/style_index.css
@@ -0,0 +1,36 @@
+body {
+	max-width: 700px;
+	margin: 0 auto;
+	padding: 10px;
+	font-family: "arial";
+}
+
+table, th, td {
+	border: 1px solid black;
+	border-collapse: collapse;
+}
+
+th, td {
+	padding: 5px;
+}
+
+th {
+	cursor: pointer;
+}
+
+.arrow {
+    position: relative;
+}
+.arrow:after {
+    content: "";
+    position: absolute;
+    top: 0;
+    right: 0;
+    width: 0; 
+    height: 0; 
+    display: block;
+    border-left: 5px solid transparent;
+    border-bottom: 5px solid transparent;
+    border-top: 5px solid #000;
+}
+