<?php
$ValidAccess = 2010;
require_once("include/globals.php");

$moduleName = "ajax.MenuDates.Update.php";
// if ($_SESSION['UserInfo']['type'] == 'SuperUser') startLog($moduleName);


// CSRF token validation
include "include/ajax.csrfToken.php";


if (SessionActive() != 1 || ! UserLoggedIn()) {
   logExit("Session is not active",$moduleName);
   exit();
}

// Set userType
$userType = "Parent";
if (array_key_exists('type', $_SESSION['UserInfo']) && in_array($_SESSION['UserInfo']['type'],$AllAdminUserTypes)) $userType = "Admin";
if ($userType != 'Admin') logExit('Invalid access');


// Set default timezone
date_default_timezone_set("Canada/Pacific");
$now = date("Y-m-d H:i:s",time());

$return_data = array();


// Get parameters
if (array_key_exists('schedule_num', $_GET)) $schedule_num = intval($_GET['schedule_num']);
if (array_key_exists('action', $_GET)) $action = db_escape_string($_GET['action']);

if (!isset($schedule_num)) logExit("Schedule Num is not set");
if (!isset($action)) logExit("Action is not set");


writeLog("schedule_num: $schedule_num");
writeLog("action: $action");


// Validate the schedule number
$swhere = "";
if ($_SESSION['UserInfo']['type'] == 'Supplier') $swhere = " and supplier_num = " . $_SESSION['UserInfo']['supplier_num'];
$query = "select * from hotlunch_schedules " .
         "where record_num = $schedule_num " .
         "and school_num = $school_num $swhere";
$results = db_query($query);

if (db_num_rows($results) == 0) {
   $return_data['error_message'] = getLanguageText('ERRORMSG-INVALID-SCHEDULE-NUM');
   $return_data['ajax_return_code'] = -1;
   echo(json_encode($return_data));
   logExit($error_message);
   exit();
}

$hotlunch_schedule = db_fetch_array($results);
$return_data['reload_data'] = 'Y';
$return_data['ajax_return_code'] = 0;
$return_data['ajax_message'] = '';


switch ($action) {
   case 'delete-all-menus':
      $query = "DELETE FROM hotlunch_menu_items " .
               "WHERE school_num = $school_num " .
               "AND menu_num IN (SELECT record_num FROM hotlunch_menu_dates " .
                                "WHERE school_num = $school_num " .
                                "AND schedule_num = $schedule_num)";
      db_query($query);

      $query = "DELETE FROM hotlunch_menu_dates " .
               "WHERE school_num = $school_num " .
               "AND schedule_num = $schedule_num";
      db_query($query);
      break;

   case 'delete-selected-menus':
      if (array_key_exists('selected_menus', $_GET)) $selected_menus = db_escape_string($_GET['selected_menus']);
      if (!isset($selected_menus) || strlen($selected_menus) == 0) {
         $return_data['error_message'] = getLanguageText('ERRORMSG-NO-MENU-DATES-SELECTED');
         $return_data['ajax_return_code'] = -1;
         echo(json_encode($return_data));
         logExit($error_message);
         exit();
      }

      $query = "DELETE FROM hotlunch_menu_items " .
               "WHERE school_num = $school_num " .
               "AND menu_num IN ($selected_menus)";
      writeLog($query);
      db_query($query);

      $query = "DELETE FROM hotlunch_menu_dates " .
               "WHERE school_num = $school_num " .
               "AND schedule_num = $schedule_num " .
               "AND record_num IN ($selected_menus)";
      writeLog($query);
      db_query($query);
      break;

   case 'generate-menus':
      // Process lunch menu dates
      $menu_dates = new Table("hotlunch_menu_dates");

      if (strlen($hotlunch_schedule['lunch_days']) == 0) {
         $error_message = getLanguageText('ERRORMSG-NO-MENU-DATES-DEFINED');
         $return_data['error_message'] = $error_message;
         $return_data['ajax_return_code'] = -1;
         echo(json_encode($return_data));
         logExit($error_message);
         exit();
      }

      // writeLog($hotlunch_schedule['lunch_days']);
      $lunch_days = explode(",",$hotlunch_schedule['lunch_days']);

      $schedule_start_date = $hotlunch_schedule['schedule_start_date'];
      $schedule_end_date = $hotlunch_schedule['schedule_end_date'];
      $processing_date = $hotlunch_schedule['schedule_start_date'];
      $processing_time = strtotime($processing_date) + 12 * 60 * 60;

      $newDays = 0;
      $sequence = intval(db_getVal("SELECT max(sequence) FROM hotlunch_menu_dates WHERE school_num = $school_num AND schedule_num = $schedule_num"));

      // writeLog("processing_date: $processing_date");
      // writeLog("schedule_end_date: $schedule_end_date");

      while ($processing_date <= $schedule_end_date) {
         $day = date("D",$processing_time);
         // writeLog("day: $day");
         if (in_array($day,$lunch_days)) {
            $entry = initializeTableArray("hotlunch_menu_dates");

            $entry['menu_title'] = $hotlunch_schedule['default_menu_title'];
            $entry['menu_date']  = $processing_date;
            $entry['menu_end_order_datetime'] = $processing_date . " 23:59:00";
            $entry['menu_end_order_datetime'] = $processing_date . " 09:00:00";
            $entry['order_format'] = $hotlunch_schedule['default_order_format'];

            // Check if an entry exists for this date
            $query = "SELECT * FROM hotlunch_menu_dates WHERE school_num = $school_num AND schedule_num = $schedule_num AND menu_date = '$processing_date'";
            // writeLog($query);
            $results = db_query($query);
            if (db_num_rows($results) == 0) {
               $sequence++;
               $entry['sequence'] = $sequence;

               $query = $menu_dates->BuildInsert($entry);
               // writeLog($query);
               db_query($query);
               $newDays++;
            }

         }

         $processing_time += 24 * 60 * 60;
         $processing_date = date("Y-m-d",$processing_time);
      }

      $return_data['ajax_message'] = getLanguageText('TEXT-MENU-DATES-CREATED') . ": $newDays";
      break;

   case 'sort-menus-by-date':
      $query = "SELECT * FROM hotlunch_menu_dates WHERE school_num = $school_num AND schedule_num = $schedule_num ORDER BY menu_type,menu_date";
      $results = db_query($query);
      $sequence = 1;
      while ($row = db_fetch_assoc($results)) {
         $rnum = $row['record_num'];
         db_query("UPDATE hotlunch_menu_dates SET sequence = $sequence WHERE record_num = $rnum");
         $sequence++;
      }
      break;

   case 'set-all-menus-to-checkboxes':
      $query = "UPDATE hotlunch_menu_dates " .
               "SET order_format = 'Checkbox' " .
               "WHERE school_num = $school_num " .
               "AND schedule_num = $schedule_num";
      writeLog($query);
      db_query($query);

      $query = "UPDATE hotlunch_menu_items " .
               "SET menu_item_format = 'C' " .
               "WHERE school_num = $school_num " .
               "AND item_type = 'Item' " .
               "AND menu_num IN " .
                  "(SELECT record_num FROM hotlunch_menu_dates WHERE school_num = $school_num AND schedule_num = $schedule_num)";
      writeLog($query);
      db_query($query);

      $return_data['reload_data'] = 'N';
      break;

   case 'set-all-menus-to-quantity':
      $query = "UPDATE hotlunch_menu_dates " .
               "SET order_format = 'Quantity' " .
               "WHERE school_num = $school_num " .
               "AND schedule_num = $schedule_num";
      writeLog($query);
      db_query($query);

      $query = "UPDATE hotlunch_menu_items " .
               "SET menu_item_format = 'Q' " .
               "WHERE school_num = $school_num " .
               "AND item_type = 'Item' " .
               "AND menu_num IN " .
                  "(SELECT record_num FROM hotlunch_menu_dates WHERE school_num = $school_num AND schedule_num = $schedule_num)";
      writeLog($query);
      db_query($query);

      $return_data['reload_data'] = 'N';
      break;

   case 'modify-menu-links':
      if (array_key_exists('new_menu_link', $_GET)) $new_link = db_escape_string($_GET['new_menu_link']);
      if (isset($new_link)) {
         switch ($new_link) {
            case 'Admin':
            case 'Paper':
            case 'All':
            case 'No':
               $query = "UPDATE hotlunch_menu_dates SET menu_link = '$new_link' " .
                        "WHERE school_num = $school_num " .
                        "AND schedule_num = $schedule_num " .
                        "AND menu_link != 'No'";
               db_query($query);
               break;
         }
      }
      else {
         $return_data['error_message'] = getLanguageText('ERRORMSG-INVALID-PARAMETERS');
         $return_data['ajax_return_code'] = -1;
      }
      break;

   case 'change-menu-link':
      if (array_key_exists('menu_num', $_GET)) $menu_num = intval($_GET['menu_num']);
      if (array_key_exists('new_menu_link', $_GET)) $new_link = db_escape_string($_GET['new_menu_link']);

      if (isset($new_link)) {
         switch ($new_link) {
            case 'Admin':
            case 'Paper':
            case 'All':
            case 'No':
               $query = "UPDATE hotlunch_menu_dates SET menu_link = '$new_link' " .
                        "WHERE school_num = $school_num " .
                        "AND schedule_num = $schedule_num " .
                        "AND record_num = $menu_num " .
                        "AND menu_link != 'No'";
               db_query($query);
               break;
         }
      }
      break;

   case 'copy-menu':
      $copy_menu_title = 'Y';
      if (array_key_exists('schedule_num', $_GET)) $schedule_num = intval($_GET['schedule_num']);
      if (array_key_exists('menu_num', $_GET)) $menu_num = intval($_GET['menu_num']);
      if (array_key_exists('menu_link', $_GET)) $menu_link = db_escape_string($_GET['menu_link']);
      if (array_key_exists('menu_dates', $_GET)) $menu_dates = $_GET['menu_dates'];
      if (array_key_exists('copy_menu_title', $_GET)) $copy_menu_title = $_GET['copy_menu_title'];

      if (!isset($menu_dates) || !is_array($menu_dates) || count($menu_dates) == 0 || !isset($menu_num) || intval($menu_num) == 0) {
         $return_data['error_message'] = getLanguageText('ERRORMSG-NO-DATES-SELECTED');
         $return_data['ajax_return_code'] = -1;
         echo(json_encode($return_data));
         logExit($return_data['error_message']);
         exit();
      }

      // startLog("copy-menu");
      // writeLog("copy_menu_title: $copy_menu_title");
      // writeLog("schedule_num: $schedule_num");

      // Get source menu record
      $source = db_getVal("SELECT * FROM hotlunch_menu_dates WHERE school_num = $school_num AND record_num = $menu_num");
      if (!is_array($source)) {
         $return_data['error_message'] = getLanguageText('ERRORMSG-INVALID-MENU');
         $return_data['ajax_return_code'] = -1;
         echo(json_encode($return_data));
         logExit($return_data['error_message']);
         exit();
      }

      $source_schedule_num = $source['schedule_num'];
      // writeLog("source_schedule_num: $source_schedule_num");
      if ($source_schedule_num != $schedule_num) $copy_menu_title = 'Y';

      // Get menu items and products for the source menu
      $sourceItems = array();
      $sourceProducts = array();
      $sourceClasses = array();
      $sourceItemClasses = array();

      // Get source menu items
      $query = "SELECT * FROM hotlunch_menu_items WHERE school_num = $school_num AND menu_num = $menu_num ORDER BY sequence";
      $items = db_query($query);

      while ($row = db_fetch_assoc($items)) {
         $sourceItems[] = $row;
         $menu_item_num = $row['record_num'];

         // Get products for this item
         $query = "SELECT * FROM hotlunch_menu_products " .
                  "WHERE school_num = $school_num " .
                  "AND menu_item_num = $menu_item_num " .
                  "ORDER BY product_sequence";
         $products = db_query($query);

         $itemProducts = array();
         while ($row = db_fetch_assoc($products)) {
            $itemProducts[] = $row;
         }

         $sourceProducts[$menu_item_num] = $itemProducts;

         // Get classes for this menu item
         $query = "SELECT * FROM hotlunch_menu_items_classes " .
                  "WHERE school_num = $school_num " .
                  "AND menu_num = $menu_num " .
                  "AND menu_item_num = $menu_item_num";
         $classes = db_query($query);
         $itemClasses = array();
         while ($row = db_fetch_assoc($classes)) {
            $itemClasses[] = $row;
         }

         $sourceItemClasses[$menu_item_num] = $itemClasses;
      }

      // Get classes for the source menu date
      $query = "SELECT * FROM hotlunch_menu_dates_classes WHERE school_num = $school_num AND menu_num = $menu_num";
      $classes = db_query($query);
      while ($row = db_fetch_assoc($classes)) {
         $sourceClasses[] = $row;
      }


      $hotlunch_menu_dates = new Table('hotlunch_menu_dates');
      $hotlunch_menu_items = new Table('hotlunch_menu_items');
      $hotlunch_menu_products = new Table('hotlunch_menu_products');
      $hotlunch_menu_dates_classes = new Table('hotlunch_menu_dates_classes');
      $hotlunch_menu_items_classes = new Table('hotlunch_menu_items_classes');

      for ($i = 0; $i < count($menu_dates); $i++) {
         $curr_menu_num = $menu_dates[$i];
         // writeLog("$i curr_menu_num: $curr_menu_num");
         $query = "SELECT * FROM hotlunch_menu_dates WHERE school_num = $school_num AND schedule_num = $schedule_num AND record_num = $curr_menu_num";
         $current_menu_record = db_getVal($query);

         // Delete any current menu items for this menu
         $query = "DELETE FROM hotlunch_menu_products " .
                  "WHERE school_num = $school_num " .
                  "AND menu_item_num IN (SELECT record_num FROM hotlunch_menu_items WHERE school_num = $school_num AND menu_num = $curr_menu_num)";
         // writeLog($query);
         db_query($query);

         $query = "DELETE FROM hotlunch_menu_items WHERE school_num = $school_num AND menu_num = $curr_menu_num";
         // writeLog($query);
         db_query($query);

         // Create menu_date entry
         $entry = $current_menu_record;
         // writeLog("copy_menu_title: $copy_menu_title");
         // writeLog("menu_title: ".$current_menu_record['menu_title']);

         $entry['record_num'] = $curr_menu_num;
         $entry['schedule_num'] = $schedule_num;
         if (isset($copy_menu_title) && $copy_menu_title == 'Y') $entry['menu_title'] = $source['menu_title'];
         $entry['menu_date'] = $current_menu_record['menu_date'];
         $entry['sequence'] = $current_menu_record['sequence'];
         $menu_end_order_datetime = $current_menu_record['menu_end_order_datetime'];
         if ($menu_end_order_datetime == '0000-00-00 00:00:00') $menu_end_order_datetime = $current_menu_record['menu_date'] . " 06:00:00";
         $entry['menu_end_order_datetime'] = $menu_end_order_datetime;
         $entry['menu_link'] = $menu_link;
         $entry['source_menu'] = $menu_num;
         $entry['order_revenue'] = 0.00;
         $entry['other_revenue'] = 0.00;
         $entry['supplier_costs'] = 0.00;
         $entry['other_costs'] = 0.00;
         $entry['net_revenue'] = 0.00;
         $entry['record_num'] = $current_menu_record['record_num'];

         $query = $hotlunch_menu_dates->BuildUpdate($entry);
         // writeLog($query);
         db_query($query);

         $new_menu_num = $current_menu_record['record_num'];

         // Save the menu items for the new menu
         for ($j = 0; $j < count($sourceItems); $j++) {
            $row = $sourceItems[$j];
            $row['menu_num'] = $new_menu_num;
            $row['source_item'] = $row['record_num'];
            // writeLog("source_item: ".$row['source_item']);
            $original_item_num = $row['record_num'];

            $query = $hotlunch_menu_items->BuildInsert($row);
            // writeLog($query);
            db_query($query);
            $new_item_num = db_insert_id();

            // Save the menu item products for the new menu item
            $itemProducts = $sourceProducts[$original_item_num];
            for ($m = 0; $m < count($itemProducts); $m++) {
               $row = $itemProducts[$m];
               $row['menu_item_num'] = $new_item_num;

               $query = $hotlunch_menu_products->BuildInsert($row);
               // writeLog($query);
               db_query($query);
            }

            // Save menu item classes
            $itemClasses = $sourceItemClasses[$original_item_num];
            for ($m = 0; $m < count($itemClasses); $m++) {
               $row = $itemClasses[$m];
               $row['schedule_num'] = $schedule_num;
               $row['menu_num'] = $new_menu_num;
               $row['menu_item_num'] = $new_item_num;

               $query = $hotlunch_menu_items_classes->BuildInsert($row);
               // writeLog($query);
               db_query($query);
            }
         }

         // Save menu date classes
         for ($j = 0; $j < count($sourceClasses); $j++) {
            $row = $sourceClasses[$j];
            $row['schedule_num'] = $schedule_num;
            $row['menu_num'] = $new_menu_num;

            $query = $hotlunch_menu_dates_classes->BuildInsert($row);
            // writeLog($query);
            db_query($query);
         }
      }

      $return_data['ajax_message'] = getLanguageText('TEXT-MENU-DATES-COPIED') . ": " . count($menu_dates);
      break;
}

echo(json_encode($return_data));
writeLog("completed\n");