<?php
require_once("include/globals.php");

if (SessionActive() != 1 || ! UserLoggedIn()) {
   header("Location: /");
   exit();
}

// Start the template and output buffering
startTemplate();
$templatePageTitle = getLanguageText('TEXT-MENU-PRODUCT-UPDATE');



// Ensure that only valid user types have access to this module
$AllowedUserTypes = array('SuperUser','System Administrator','Application Administrator','Application Volunteer','Schedule Volunteer','Administration Team','Schedule Team');
if (checkPermission($AllowedUserTypes) != 1) {
   $error_message = getLanguageText('ERRORMSG-ACCESS-DENIED');
   include "form.messages.php";
   endTemplate();
   exit();
}


// Get schedule_num
if (array_key_exists('schedule_num',$_GET)) $schedule_num = intval($_GET['schedule_num']);
if (array_key_exists('schedule_num',$_POST)) $schedule_num = intval($_POST['schedule_num']);



if (!isset($schedule_num)) {
   $error_message = getLanguageText('ERRORMSG-INVALID-SCHEDULE-NUM');
   include "form.messages.php";
   endTemplate();
   exit();
}

// Check if this is a valid schedule
$today = date("Y-m-d",time());
$query = "select * from hotlunch_schedules " .
         "where record_num = $schedule_num " .
         "and school_num = $school_num";
$results = db_query($query);

if (db_num_rows($results) == 0) {
   $error_message = getLanguageText('ERRORMSG-INVALID-SCHEDULE');
   include "form.messages.php";
   return;
}

$hotlunch_schedule = db_fetch_array($results);


// If this is a ScheduleTeam user check if they have permission to access this schedule
if (in_array($_SESSION['UserInfo']['type'],array('Schedule Team','Schedule Volunteer'))) {
   $userNum = $_SESSION['UserInfo']['record_num'];
   $access = db_getVal("SELECT count(*) FROM hotlunch_schedules_people WHERE school_num = $school_num AND schedule_num = $schedule_num AND user_num = $userNum");

   if (!$access || $access == 0) {
      $error_message = getLanguageText('ERRORMSG-NO-SCHEDULE-ACCESS');
      include "form.messages.php";
      endTemplate();
      exit();
   }
}



// Check that this schedule date has lunch dates specified
$query = "select count(*) num from hotlunch_menu_dates " .
         "where school_num = $school_num " .
         "and schedule_num = $schedule_num";
$results = db_query($query);
$row = db_fetch_array($results);
if ($row['num'] == 0) {
   $error_message = getLanguageText('ERRORMSG-NO-MENU-DATES');
   include "form.messages.php";
   endTemplate();
   exit();
}


// Check that this schedule date has lunch items specified
$query = "select count(hotlunch_menu_items.record_num) num from hotlunch_menu_items,hotlunch_menu_dates " .
         "WHERE hotlunch_menu_items.school_num = $school_num " .
         "AND hotlunch_menu_dates.school_num = $school_num " .
         "AND hotlunch_menu_dates.record_num = hotlunch_menu_items.menu_num " .
         "AND hotlunch_menu_dates.schedule_num = $schedule_num";
$results = db_query($query);
$row = db_fetch_array($results);
if ($row['num'] == 0) {
   $error_message = getLanguageText('ERRORMSG-NO-MENU-ITEMS');
   include "form.messages.php";
   endTemplate();
   exit();
}





//
// Process all actions to list and edit records
//
$naction = "";


if (array_key_exists('naction',$_GET)) $naction = $_GET['naction'];
if (array_key_exists('naction',$_POST)) $naction = $_POST['naction'];


switch (strtolower($naction)) {
   case "update":

      // Loop through the menu dates and items and update the prices
      // Get menu dates for this schedule
      $query = "select * from hotlunch_menu_dates " .
               "where school_num = $school_num " .
               "and schedule_num = $schedule_num " .
               "order by sequence,menu_date";
      $menu_dates = db_query($query);

      while ($menu_date = db_fetch_array($menu_dates)) {
         $menu_num   = $menu_date['record_num'];
         $menu_link  = $menu_date['menu_link'];

         if ($menu_link != 'No') continue;

         // Get menu items for this menu date
         $query = "select * from hotlunch_menu_items " .
                  "where school_num = $school_num " .
                  "and menu_num = $menu_num " .
                  "order by sequence";
         $menu_items = db_query($query);

         while ($menu_item = db_fetch_array($menu_items)) {
            extract($menu_item);

            if ($item_type == 'Heading') continue;
            $menu_item_num = $record_num;

            // Setup field names
            $product_field1 = "product1_$menu_item_num";
            $product_field2 = "product2_$menu_item_num";
            $product_field3 = "product3_$menu_item_num";

            $qty_field1 = "qty1_$menu_item_num";
            $qty_field2 = "qty2_$menu_item_num";
            $qty_field3 = "qty3_$menu_item_num";


            $product1 = $_POST[$product_field1];
            $product2 = $_POST[$product_field2];
            $product3 = $_POST[$product_field3];

            $qty1 = $_POST[$qty_field1];
            $qty2 = $_POST[$qty_field2];
            $qty3 = $_POST[$qty_field3];

            if (strlen($qty1) == 0) $qty1 = 1;
            if (strlen($qty2) == 0 && strlen($product2)) $qty2 = 1;
            if (strlen($qty3) == 0 && strlen($product3)) $qty3 = 1;

            // Update item products
            db_query("DELETE FROM hotlunch_menu_products WHERE school_num = $school_num AND menu_item_num = $menu_item_num");

            if (strlen($product1) && $product1 > 0 && $qty1 > 0) db_query("INSERT INTO hotlunch_menu_products VALUES($school_num,$menu_item_num,1,$product1,$qty1)");
            if (strlen($product2) && $product2 > 0 && $qty2 > 0) db_query("INSERT INTO hotlunch_menu_products VALUES($school_num,$menu_item_num,2,$product2,$qty2)");
            if (strlen($product3) && $product3 > 0 && $qty3 > 0) db_query("INSERT INTO hotlunch_menu_products VALUES($school_num,$menu_item_num,3,$product3,$qty3)");

            // Update any linked items
            $query = "SELECT * FROM hotlunch_menu_items " .
                     "where school_num = $school_num " .
                     "and source_item = $menu_item_num";
            $results = db_query($query);

            while ($row = db_fetch_array($results)) {
               $menu_item_num = $row['record_num'];

               // Update item products
               db_query("DELETE FROM hotlunch_menu_products WHERE school_num = $school_num AND menu_item_num = $menu_item_num");

               if (strlen($product1) && $product1 > 0) db_query("INSERT INTO hotlunch_menu_products VALUES($school_num,$menu_item_num,1,$product1,$qty1)");
               if (strlen($product2) && $product2 > 0) db_query("INSERT INTO hotlunch_menu_products VALUES($school_num,$menu_item_num,2,$product2,$qty2)");
               if (strlen($product3) && $product3 > 0) db_query("INSERT INTO hotlunch_menu_products VALUES($school_num,$menu_item_num,3,$product3,$qty3)");
            }
         }
      }

      $form_message = getLanguageText('MSG-MENU-ITEMS-UPDATED');
      break;
}

// Display the selected menu form
include "hotlunch_menu.product_update.form.php";

endTemplate();
?>