<?php

namespace App\Helpers;

use CodeIgniter\HTTP\IncomingRequest;

class CommonHelper
{
  private $_viewDatas = [];
  private $_titleField = "";
  protected ?IncomingRequest $request = null;
  protected function __construct(?IncomingRequest $request = null)
  {
    $this->request = $request;
  }
  final public function setTitleField(string $field): void
  {
    $this->_titleField = $field;
  }
  final public function getTitleField(): string
  {
    if (!$this->_titleField) {
      throw new \Exception("titleField가 지정되지 않았습니다.");
    }
    return $this->_titleField;
  }
  final public function setViewDatas(array $viewDatas): void
  {
    $this->_viewDatas = $viewDatas;
  }
  final public function getViewDatas(string $key)
  {
    if (!array_key_exists($key, $this->_viewDatas)) {
      throw new \Exception("{$key}에 해당하는 ViewData가 존재하지 않습니다.");
    }
    return $this->_viewDatas[$key];
  }

  //IP관련련
  final public function isDomainName(string $domain): bool
  {
    $pattern_validation = '/((http|https)\:\/\/)?[a-zA-Z0-9\.\/\?\:@\-_=#]+\.([a-zA-Z0-9\&\.\/\?\:@\-_=#])*/';
    return preg_match($pattern_validation, $domain);
  }

  final public function isIPAddress(string $ip, $type = false): bool
  {
    switch ($type) {
      case 'ipv4':
        $result = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
        break;
      case 'ipv6':
        $result = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
        break;
      case 'all':
        $result = filter_var($ip, FILTER_VALIDATE_IP);
        break;
      default:
        $result = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE);
        break;
    }
    return $result;
  }
  final function isValidCIDR(string $cidr, $type = "ipv4"): bool
  {
    // 형식: "IP/Prefix" 형태인지 검사
    if (!preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}\/\d{1,2}$/', $cidr)) {
      return false;
    }
    list($ip, $prefix) = explode('/', $cidr);
    // IP 유효성 검사
    if (!$this->isIPAddress($ip, $type)) {
      return false;
    }
    // Prefix는 0~32 사이인지 검사 (IPv4 기준)
    $prefix = (int) $prefix;
    if ($prefix < 0 || $prefix > 32) {
      return false;
    }
    return true;
  }
  final public function isHostName(string $host): bool
  {
    $pattern_validation = '/[a-zA-Z0-9\.\/\?\:@\*\-_=#]/';
    return preg_match($pattern_validation, $host);
  }
  final public function isMobile()
  {
    // Check the server headers to see if they're mobile friendly
    if (isset($_SERVER["HTTP_X_WAP_PROFILE"])) {
      return true;
    }
    // If the http_accept header supports wap then it's a mobile too
    if (preg_match("/wap\.|\.wap/i", $_SERVER["HTTP_ACCEPT"])) {
      return true;
    }
    // Still no luck? Let's have a look at the user agent on the browser. If it contains
    // any of the following, it's probably a mobile device. Kappow!
    if (isset($_SERVER["HTTP_USER_AGENT"])) {
      $user_agents = array("midp", "j2me", "avantg", "docomo", "novarra", "palmos", "palmsource", "240x320", "opwv", "chtml", "pda", "windows\ ce", "mmp\/", "blackberry", "mib\/", "symbian", "wireless", "nokia", "hand", "mobi", "phone", "cdm", "up\.b", "audio", "SIE\-", "SEC\-", "samsung", "HTC", "mot\-", "mitsu", "sagem", "sony", "alcatel", "lg", "erics", "vx", "NEC", "philips", "mmm", "xx", "panasonic", "sharp", "wap", "sch", "rover", "pocket", "benq", "java", "pt", "pg", "vox", "amoi", "bird", "compal", "kg", "voda", "sany", "kdd", "dbt", "sendo", "sgh", "gradi", "jb", "\d\d\di", "moto");
      foreach ($user_agents as $user_string) {
        if (preg_match("/" . $user_string . "/i", $_SERVER["HTTP_USER_AGENT"])) {
          return true;
        }
      }
    }
    // Let's NOT return "mobile" if it's an iPhone, because the iPhone can render normal pages quite well.
    if (preg_match("/iphone/i", $_SERVER["HTTP_USER_AGENT"])) {
      return false;
    }
    // None of the above? Then it's probably not a mobile device.
    return false;
  }

  final public function alert(string $msg, $url = null)
  {
    $msg = preg_replace("/\r/", "\\r", $msg);
    $msg = preg_replace("/\n/", "\\n", $msg);
    $msg = preg_replace("/\'/", "\'", $msg);
    $msg = preg_replace("/\"/", "\'", $msg);
    $msg = "alert(\"{$msg}\");";
    switch ($url) {
      case 'close':
        $msg .= "window.close();";
        break;
      default:
        $msg .= $url ? "location.href=\"{$url}\";" : "";
        break;
    }
    return "<script type=\"text/javascript\">{$msg}</script>";
  }

  final public function getRandomString($length = 10, $characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
  {
    return substr(str_shuffle($characters), 0, $length);
  }

  final public function getPasswordString($length = 8)
  {
    return $this->getRandomString($length, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()_-=+;:,.?");
  }

  // byte값을 알아보기 쉽게 변환
  final public function getSizeForHuman($bytes)
  {
    $ext = array('B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB');
    $unitCount = 0;
    for (; $bytes > 1024; $unitCount++) {
      $bytes /= 1024;
    }
    return floor($bytes) . $ext[$unitCount];
  }

  // Proxy등을 통하여 Client_IP가 알수없는경우 실제사용자의 IP를 가져오기 위한것
  final public function getClientIP($clientIP = false)
  {
    if (isset($_SERVER['HTTP_CLIENT_IP'])) {
      $clientIP = $_SERVER['HTTP_CLIENT_IP'];
    } else if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
      $clientIP = $_SERVER['HTTP_X_FORWARDED_FOR'];
    } else if (isset($_SERVER['HTTP_X_FORWARDED'])) {
      $clientIP = $_SERVER['HTTP_X_FORWARDED'];
    } else if (isset($_SERVER['HTTP_FORWARDED_FOR'])) {
      $clientIP = $_SERVER['HTTP_FORWARDED_FOR'];
    } else if (isset($_SERVER['HTTP_FORWARDED'])) {
      $clientIP = $_SERVER['HTTP_FORWARDED'];
    } else if (isset($_SERVER['REMOTE_ADDR'])) {
      $clientIP = $_SERVER['REMOTE_ADDR'];
    }
    return $clientIP;
  }

  // (EX:192.168.1.0 -> 192.168.001.000)
  final public function cidrToIpRange(string $cidr): array
  {
    if (!$this->isValidCIDR($cidr)) {
      return []; // 유효하지 않으면 빈 배열 반환
    }

    list($ip, $prefix) = explode('/', $cidr);
    $prefix = (int) $prefix;

    $ipLong = ip2long($ip);
    $netmask = ~((1 << (32 - $prefix)) - 1);
    $network = $ipLong & $netmask;
    $broadcast = $network | ~$netmask;

    $ips = [];

    // 첫 IP부터 마지막 IP까지 반복
    for ($i = $network; $i <= $broadcast; $i++) {
      $ips[] = long2ip($i);
    }

    return $ips;
  }

  public function getFieldLabel(string $field, array $viewDatas, array $extras = []): string
  {
    switch ($field) {
      default:
        // required가 있으면 class 추가
        $extras = (strpos($viewDatas['control']['field_rules'][$field], 'required') !== false) ? ["class" => "text-danger", "required" => "", ...$extras] : $extras;
        $label = form_label(lang("{$viewDatas['class_path']}.label.{$field}"), $field, $extras);
        break;
    }
    return $label;
  }

  // header.php에서 getFieldForm_Helper사용
  public function getFieldForm(string $field, mixed $value, array $viewDatas, array $extras = []): string
  {
    // create, modify, create_form, modify_form일때 required가 있으면 class 추가
    if (in_array($viewDatas['control']['action'], ['create', 'modify', 'create_form', 'modify_form'])) {
      $extras = (strpos($viewDatas['control']['field_rules'][$field], 'required') !== false) ? ["class" => "form-control", "required" => "", ...$extras] : ["class" => "form-control", ...$extras];
    }
    switch ($field) {
      case 'email':
        $form = form_input($field, $value ?? "", ["placeholder" => "예)test@example.com", ...$extras]);
        break;
      case 'mobile':
      case 'phone':
        $form = form_input($field, $value ?? "", ["placeholder" => "예)010-0010-0010", ...$extras]);
        break;
      case 'role':
        if (!is_array($viewDatas['control']['filter_optons'][$field])) {
          throw new \Exception(__METHOD__ . "에서 {$field}의 field_options가 array형태가 아닙니다.");
        }
        // create, modify, create_form, modify_form일때 checkbox로 표시
        if (in_array($viewDatas['control']['action'], ['create', 'modify', 'create_form', 'modify_form'])) {
          $forms = [];
          foreach ($viewDatas['control']['filter_optons'][$field] as $key => $label) {
            $values = is_array($value) ? $value : explode(DEFAULTS["DELIMITER_ROLE"], $value);
            $forms[] = form_checkbox("{$field}[]", $key, in_array($key, $values)) . $label;
          }
          $form = implode(" ", $forms);
        } else {
          $formOptions = ["" => lang($viewDatas['class_path'] . '.label.' . $field) . ' 선택'];
          foreach ($viewDatas['control']['filter_optons'][$field] as $key => $label) {
            $formOptions[$key] = $label;
          }
          $form = form_dropdown($field, $formOptions, $value, $extras);
        }
        break;
      case 'expired_at':
      case 'billing_at':
      case 'start_at':
      case 'updated_at':
      case 'created_at':
        $extra_class = isset($extras['class']) ? $extras['class'] . ' calender' : 'calender';
        $form = form_input($field, $value ?? "", ['class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
        break;
      case 'description':
      case 'content':
        $extra_class = isset($extras['class']) ? $extras['class'] . ' tinymce' : 'tinymce';
        $form = form_textarea($field, $value ?? "", ['id' => $field, 'class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
        break;
      default:
        if (in_array($field, $viewDatas['control']['filter_fields'])) {
          if (!is_array($viewDatas['control']['filter_optons'][$field])) {
            throw new \Exception(__METHOD__ . "에서 {$field}의 field_options가 array형태가 아닙니다.");
          }
          $formOptions = ["" => lang($viewDatas['class_path'] . '.label.' . $field) . ' 선택'];
          foreach ($viewDatas['control']['filter_optons'][$field] as $key => $label) {
            $formOptions[$key] = $label;
          }
          $extra_class = isset($extras['class']) ? $extras['class'] . ' select-field' : 'select-field';
          // create, modify, create_form, modify_form 액션에서는 기본값:DEFAULTS['STATUS']을 설정
          if (in_array($viewDatas['control']['action'], ['create', 'modify', 'create_form', 'modify_form'])) {
            $value = $value ?? DEFAULTS['STATUS'];
          }
          $form = form_dropdown($field, $formOptions, $value, ['class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
        } else {
          $form = form_input($field, $value ?? "", $extras);
        }
        break;
    }
    return $form;
  }

  public function getFieldView(string $field, mixed $value, array $viewDatas, array $extras = []): string|null
  {
    switch ($field) {
      case 'role':
        $roles = [];
        foreach (explode(DEFAULTS["DELIMITER_ROLE"], $value) as $key) {
          $roles[] = $viewDatas['control']['filter_optons'][$field][$key] ?? "";
        }
        $value = implode(" , ", $roles);
        break;
      case 'billing_at':
      case 'start_at':
      case 'end_at':
      case 'updated_at':
      case 'created_at':
        $value = $value ? date("Y-m-d", strtotime($value)) : "";
        break;
      case 'price':
      case 'amount':
        $value = $value ? number_format($value) : "";
        break;
      default:
        if (in_array($field, $viewDatas['control']['filter_fields'])) {
          if (env('app.debug.filter_options')) {
            echo "field=>" . $field . ",value=>" . $value . "<br>";
            echo var_dump($viewDatas['control']['filter_optons'][$field]) .  "<br>";
          }
          //index 액션에서만 filter_options를 변경시 선택된 값을 변경하는 기능능
          if (in_array($viewDatas['control']['action'], ['index'])) {
            $extras["onChange"] = sprintf(
              "document.location.href='%s/toggle/%s/%s?%s='+this.options[this.selectedIndex].value",
              current_url(),
              $viewDatas['entity']->getPK(),
              $field,
              $field
            );
            $value = $this->getFieldForm($field, $value, $viewDatas, $extras);
          } else {
            $value = $viewDatas['control']['filter_optons'][$field][$value];
          }
        }
        break;
    }
    if (is_array($value)) {
      echo __METHOD__ . "에서 오류: {$field}의 값이 Array형태입니다";
      exit;
    }
    return $value;
  }
  final public function getListRowColor(mixed $entity, string $field = 'status', string $value = DEFAULTS['STATUS']): string
  {
    return $entity->isMatched($field, $value) ? "" : 'class="table-danger"';
  }

  public function getListLabel(string $field, array $viewDatas, array $extras = []): string
  {
    switch ($field) {
      default:
        $label = $this->getFieldLabel($field, $viewDatas, $extras);
        if (isset($viewDatas['order_field']) && $viewDatas['order_field'] == $field) {
          $label .= $viewDatas['order_value'] == 'ASC' ? ICONS["UP"] : ICONS["DOWN"];
        }
        $query = $this->request->getUri()->getQuery(['except' => ['order_field', 'order_value']]);
        $query .= empty($query) ? "" : "&";
        $query .= "order_field={$field}&order_value=";
        $query .= isset($viewDatas['order_value']) && $viewDatas['order_value'] == 'DESC' ? "ASC" : "DESC";
        $label = anchor(current_url() . "?" . $query, $label);
        break;
    }
    return $label;
  }

  public function getListButton(string $action, array $viewDatas, array $extras = []): string
  {
    switch ($action) {
      case 'create':
        // echo current_url() . '/' . $action . '?' . $this->request->getUri()->getQuery();
        $extras = ["class" => "btn btn-outline btn-primary btn-circle", "target" => "_self", ...$extras];
        $action = form_label(
          ICONS['ADD'],
          $action,
          [
            "data-src" => current_url() . '/' . $action . '?' . $this->request->getUri()->getQuery(),
            "data-bs-toggle" => "modal",
            "data-bs-target" => "#index_action_form",
            ...$extras
          ]
        );
        break;
      case 'modify':
        $oldBatchJobUids = old("batchjob_uids", null);
        $oldBatchJobUids = is_array($oldBatchJobUids) ? $oldBatchJobUids : [$oldBatchJobUids];
        $checkbox = form_checkbox([
          "id" => "checkbox_uid_{$viewDatas['entity']->getPK()}",
          "name" => "batchjob_uids[]",
          "value" => $viewDatas['entity']->getPK(),
          "class" => "batchjobuids_checkboxs",
          "checked" => in_array($viewDatas['entity']->getPK(), $oldBatchJobUids)
        ]);
        $action = $checkbox . form_label(
          $viewDatas['cnt'],
          $action,
          [
            "data-src" => current_url() . '/' . $action . '/' . $viewDatas['entity']->getPK() . '?' . $this->request->getUri()->getQuery(),
            "data-bs-toggle" => "modal",
            "data-bs-target" => "#index_action_form",
            ...$extras
          ]
        );
        break;
      case 'view':
        $extras = ["class" => "btn btn-outline btn-primary btn-circle", "target" => "_self", ...$extras];
        $action = form_label(
          ICONS['SEARCH'],
          $action,
          [
            "data-src" => current_url() . '/' . $action . '/' . $viewDatas['entity']->getPK(),
            "data-bs-toggle" => "modal",
            "data-bs-target" => "#index_action_form",
            ...$extras
          ]
        );
        break;
      case 'delete':
        $extras = ["class" => "btn btn-sm btn-danger btn-circle", "target" => "_self", ...$extras];
        $action = anchor(
          current_url() . '/' . $action . '/' . $viewDatas['entity']->getPK(),
          ICONS['DELETE'],
          $extras
        );
        break;
      case 'batchjob':
        $action = form_submit("batchjob_submit", '일괄처리', [
          "formaction" => current_url() . '/batchjob',
          "class" => "btn btn-outline btn-warning",
          // "onclick" => "return submitBatchJob()"
        ]);
        break;
      case 'batchjob_delete':
        $action = form_submit("batchjob_submit", '일괄삭제', [
          "formaction" => current_url() . '/batchjob_delete',
          "class" => "btn btn-outline btn-danger",
          // "onclick" => "return submitBatchJobDelete()"
        ]);
        break;
    }
    return $action;
  }
}