Logs.php

<?php
    defined('BASEPATH') OR exit('No direct script access allowed');

    /**
     * Created by PhpStorm.
     * Author: Ufuk Özdemir
     * Date: 2019-05-24
     * Time: 16:40
     */

    class Logs {

        protected $CI;
        
        static $folder;
        static $year;
        static $month;
        static $day;

        static $path_year;
        static $path_month;
        static $path_day;

        static $base_url;
        static $referer;
        static $user_id;
        static $user_name;
        static $user_referer;

        public function __construct() {
            $this->CI =& get_instance();
            $this->CI->load->library('session');

            static::$folder         = 'logs';
            static::$year           = date("Y");
            static::$month          = date("m");
            static::$day            = date("d.m.Y").'.json';
            static::$path_year      = APPPATH.static::$folder.DIRECTORY_SEPARATOR.static::$year;
            static::$path_month     = APPPATH.static::$folder.DIRECTORY_SEPARATOR.static::$year.DIRECTORY_SEPARATOR.static::$month;
            static::$path_day       = static::$path_month.DIRECTORY_SEPARATOR.static::$day;
            static::$base_url       = $this->CI->config->item('base_url');
            static::$referer        = $this->CI->input->server('HTTP_REFERER');
            static::$user_id        = $this->CI->session->user_id;
            static::$user_name      = $this->CI->session->user_fullname;
            static::$user_referer   = static::$base_url == static::$referer ? DIRECTORY_SEPARATOR : str_replace(static::$base_url, '', static::$referer);
        }

        public static function log_save($log_data) {
            if (!file_exists(static::$path_year)) {
                mkdir(static::$path_year, 0755);
            }
            if (!file_exists(static::$path_month)) {
                mkdir(static::$path_month, 0755);
            }
            if (!file_exists(static::$path_day)) {
                touch(static::$path_day);
            }
            $current_data = file_get_contents(static::$path_day);
            $array_data = json_decode($current_data, true);
            $array_data[] = $log_data;
            $data_proccesed = json_encode($array_data, JSON_UNESCAPED_SLASHES);
            file_put_contents(static::$path_day, $data_proccesed);
        }

        public static function json_data($process_type, $process_log) {
            $json_data = array(
                'user_id'           => static::$user_id,
                'user_name'         => static::$user_name,
                'process_type'      => $process_type,
                'process_log'       => $process_log,
                'process_time'      => time(),
                'process_referer'   => static::$user_referer
            );
            return $json_data;
        }

        public static function other($log_message) {
            $text = static::json_data(0, $log_message);
            static::log_save($text);
        }
        public static function insert($log_message) {
            $text = static::json_data(1, $log_message);
            static::log_save($text);
        }
        public static function update($log_message) {
            $text = static::json_data(2, $log_message);
            static::log_save($text);
        }
        public static function delete($log_message) {
            $text = static::json_data(3, $log_message);
            static::log_save($text);
        }
        public static function view($log_message) {
            $text = static::json_data(4, $log_message);
            static::log_save($text);
        }

    }