/**
* main functionality function
* @param [string] $filename
* @return [array]
*/
function whatsapp_reader($filename)
{
$error_flag = false;
$errors = [];
$chat = [];
$names_array = [];
$chat_file_path = 'conversations/' . $filename;
if (!file_exists($chat_file_path)) {
add_error_message($errors, $error_flag, 'File 404<br>File is like a unicorn to our servers, file was not uploaded properly');
} else {
$file_handle = fopen($chat_file_path, "r");
if (!$file_handle) {
add_error_message($errors, $error_flag, 'Oh Snap!<br>Some technical glitch, it\'ll be resolved soon!');
} else {
$index = 0;
$first_message = true;
while (($line = fgets($file_handle)) !== false) {
$line = explode('-', $line);
$timestamp = $line[0];
$timestamp = returntimestamp($timestamp);
if (!$timestamp) {
if ($first_message) {
add_error_message($errors, $error_flag, 'It wasn\'t a valid text file or we were not able to convert it!');
$first_message = false;
break;
}
$line = implode('-', $line);
$last_element_index = sizeof($chat) - 1;
$chat[$last_element_index]['line'] .= "\n" . $line;
} else {
if ($first_message) {
$first_message = false;
}
unset($line[0]);
$line = implode('-', $line);
$line = explode(':', trim($line));
$name = trim($line[0]);
unset($line[0]);
$line = implode(':', $line);
$final_chat_string = trim($line);
$user_index = get_user_index($names_array, $name);
if (strtolower($final_chat_string) == MEDIA_STRING) {
$final_string_to_be_printed = null;
} else {
$final_string_to_be_printed = htmlspecialchars($final_chat_string);
}
$temp_element = ['index' => $user_index, 'line' => $final_string_to_be_printed, 'time' => $timestamp];
array_push($chat, $temp_element);
}
}
// close file handle
fclose($file_handle);
// delete file
// yes, i respect privary
unlink($chat_file_path);
}
}
$final_response = array('success' => !$error_flag);
if ($error_flag) {
$final_response['errors'] = $errors;
} else {
$final_response['chat'] = $chat;
$final_response['users'] = $names_array;
}
return $final_response;
}
