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<?php |
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namespace DanySpin97\PhpBotFramework; |
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define("DELIMITER", ':::::::::::::::::::::::::::::::::::::: |
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'); |
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/** |
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* \class Utility |
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* \brief Contains static help methods. |
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*/ |
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class Utility { |
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/** |
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* \addtogroup Utility-methods Utility methods |
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* \brief Helper methods. |
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* @{ |
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*/ |
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/** |
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* \brief Get hashtag contained in a string. |
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* \details Check hashtags in a string using regex. |
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* All valid hashtags will be returned in an array. |
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* [Credis to trante](http://stackoverflow.com/questions/3060601/retrieve-all-hashtags-from-a-tweet-in-a-php-function). |
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* @param $string The string to check for hashtags. |
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* @return An array of valid hashtags, can be empty. |
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*/ |
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static public function getHashtags(string $string) : array { |
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// Use regex to check |
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if (preg_match_all("/(#\w+)/u", $string, $matches) != 0) { |
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$hashtagsArray = array_count_values($matches[0]); |
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$hashtags = array_keys($hashtagsArray); |
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} |
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// Return an array of hashtags |
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return $hashtags ?? []; |
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} |
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/** |
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* \brief Remove html formattation from telegram usernames in string. |
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* \details Remove the $modificator html formattation from a message containing telegram username, to let the user click them. |
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* @param $string to parse. |
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* @param $tag Formattation tag to remove. |
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* @return The string, modified if there are usernames. Otherwise $string. |
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*/ |
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static public function removeUsernameFormattation(string $string, string $tag) : string { |
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// Check if there are usernames in string using regex |
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if (preg_match_all('/(@\w+)/u', $string, $matches) != 0) { |
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$usernamesArray = array_count_values($matches[0]); |
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$usernames = array_keys($usernamesArray); |
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// Count how many username we've got |
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$count = count($usernames); |
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// Delimitator to make the formattation start |
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$delimitator_start = '<' . $tag . '>'; |
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// and to make it end |
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$delimitator_end = '</' . $tag . '>'; |
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// For each username |
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for($i = 0; $i !== $count; $i++) { |
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// Put the Delimitator_end before the username and the start one after it |
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$string = str_replace($usernames[$i], $delimitator_end . $usernames[$i] . $delimitator_start, $string); |
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} |
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} |
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// Return the string, modified or not |
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return $string; |
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} |
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static public function paginateItems($items, int $index, $format_item, int $item_per_page = 3, $keyboard = null, $prefix = 'list', string $delimiter = DELIMITER) { |
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// Calc the position of the first item to show |
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$item_position = ($index - 1) * $item_per_page + 1; |
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// Counter variable |
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$cont = 1; |
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// How many items did we display? |
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$items_displayed = 0; |
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// If keyboard is valid |
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if (isset($keyboard)) { |
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// Get how many items did the database return |
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$items_number = $items->rowCount(); |
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// Get how many complete pages there are |
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$total_pages = intval($items_number / $item_per_page); |
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// If there an incomplete page |
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if (($items_number % $item_per_page) != 0) { |
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$total_pages++; |
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} |
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// Initialize keyboard with the list |
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$keyboard->initializeCompositeListKeyboard($index, $total_pages, $prefix); |
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} |
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// Initialize empty string |
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$message = ''; |
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// Iterate over all results |
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while ($item = $items->fetch()) { |
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// If we have to display the first item of the page and we found the item to show (using the position |
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// calculated before) |
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if ($items_displayed === 0 && $cont === $item_position) { |
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// Format the item using closure |
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$message .= $format_item($item, $keyboard); |
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// We displayed an item |
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$items_displayed++; |
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// If we displayed at least an item but still not how much we want |
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} elseif ($items_displayed > 0 && $items_displayed < $item_per_page) { |
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// Add delimiter to the message |
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$message .= DELIMITER; |
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// Format the item using closure |
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$message .= $format_item($item, $keyboard); |
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// We displayed an item |
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$items_displayed++; |
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// If we displayed all the item we wanted |
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} elseif ($items_displayed === $item_per_page) { |
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// Exit the cycle |
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break; |
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// We are just iterating over an unwanted result |
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} else { |
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$cont++; |
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} |
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} |
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// Return the created string |
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return $message; |
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} |
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} |
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DanySpin97 /
PhpBotFramework
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