<?php
include("config/parametres.php");
include("includes/sessions.php");
include("includes/functions.php");

// if user's ROLE is less then ADMIN : then go to Login | Panel
// -----------------------------------------------------------------------------
if (ROLE < ADMIN) {
  header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
  header("Cache-Control: post-check=0, pre-check=0", false);
  header("Pragma: no-cache");
  header("Location: /");
  die();
}


// Parse arguments and intitialize behaviout flags
// Arguments:
// ID -> ccode [ certain id: ##.##  --or--  0 = any id ]
////////////////////////////////////////////////////////////////////////////////

$doSearch = false;        // shall not do a search (if no search arguments passes)

$totals = get_totals();   // get totals of categories

if ((isset($_GET['id'])) && (mb_strlen($_GET['id']) < 6)) {
  $ccid = $_GET['id'];    // category id passed
  $doSearch = true;
}


// get records
// -----------------------------------------------------------------------------

  if ($doSearch) {

      $items = array();

      // init database connection
      $_dbc = new mysqli(DB_HOST, DB_USER, DB_PASS, DB_DBMS);
      if ($_dbc->connect_errno) {
        echo "Database connection failed; Please try in a few minutes. ";
        if (TESTING) echo $_dbc->connect_error;
        $_dbc->close(); die();
      }
      $_dbc->set_charset("utf8");

      if ($ccid != '0') {
        $_stm = $_dbc->prepare("SELECT id, img, img2, ccode, identity, summary, operator, `timestamp`, record FROM items WHERE ccode = ?");
        $_stm->bind_param("s", $ccid);
      }
      else {
        $_stm = $_dbc->prepare("SELECT id, img, img2, ccode, identity, summary, operator, `timestamp`, record FROM items");
      }
      $_stm->execute();               // execute query
      $_stm->store_result();          // store result

      if ($_stm->num_rows) {

        $_stm->bind_result($id, $imgfile, $imgfile2, $ccode, $idnt, $sum, $opr, $tm, $serREC);   // bind result variables

        while ($_stm->fetch()) {

          $record = unserialize($serREC);
          $it_id = explode('.', $idnt);

          // calculate record
          $record['id'] = $id;
          $record['ccode'] = $ccode;
          $record['img'] = ( (strlen($imgfile) > 9) ? ("/". UPLOAD_DIR . intdiv($id,FOLDER_CPC) ."/". $imgfile) : "" );
          $record['img2'] = ( (strlen($imgfile2) > 9) ? ("/". UPLOAD_DIR . intdiv($id,FOLDER_CPC) ."/". $imgfile2) : "" );
          $record['identity'] = $idnt;
          $record['operator'] = $opr;
          $record['itemid'] = end($it_id);
          $record['totalitems'] = $totals[$record['ccode']];
          $record['timestamp'] = local_dt($tm);
          $record['summary'] = $sum;

          $items[] = $record;
          unset($record);


          /*
          // unserialize main record to variable
          $record = unserialize($serREC);
          $it_id = explode('.', $idnt);

          // calculate record
          $record['id'] = $id;
          $record['identity'] = $idnt;
          $record['operator'] = $opr;
          $record['itemid'] = end($it_id);
          $record['totalitems'] = $totals[$ccode];
          date_default_timezone_set('Europe/Athens');
          setlocale(LC_ALL, 'el_GR.UTF-8', 'grc');
          $record['timestamp'] = local_dt($tm);

          $record['img'] = ( (strlen($imgfile) > 9) ? ("/". UPLOAD_DIR . intdiv($id,FOLDER_CPC) ."/". $imgfile) : "" );
          $record['img2'] = ( (strlen($imgfile2) > 9) ? ("/". UPLOAD_DIR . intdiv($id,FOLDER_CPC) ."/". $imgfile2) : "" );

          $items[] = array(
              'id' => $id,
              'ccode' => $ccode,
              'summary' => $sum,
              'record' => $record,
          );
          */

        }
      }

      $_stm->close();     // close statement
      $_dbc->close();     // close connection

      // 03. Prepare PDF to print ----------------------------------------------------
      // include printing php script
      ////////////////////////////////////////////////////////////////////////////////

      define("PRINT_MODE", 'book');
      define("RENDER_COVER", true );
      define("RENDER_HF", true);    // render header + footer
      $formARRAY = json_decode(FORMJSON);

      include("do-pdf.php");

  }

  // Script Workflow:
  // ---------------------------------------------------------------------------
  // 1. read fields options
  // 2. generate HTML
  // 3. generate JS needed

  // the UI
  // ---------------------------------------------------------------------------
  // Fields are grouped in sections
  // These sections presented in tabs (or accordion if mobile device)
  // Two (2) sections incduded to inform the user of empty fields or errors

  // Libraries and FrameWorks used
  // ---------------------------------------------------------------------------
  // Bootstrap 4.3 is used for easy responsive HTML code
  // JQuery 3.3 is used to handle user interation
  // Select2 is used to make select-boxes (single or multiple) easier to use


  // read fields options (json format) /////////////////////////////////////////
  // ---------------------------------------------------------------------------
  // --- depricated: $formJSON = file_get_contents('config/kallassa.json');
  // --- $formJSON has been readed already on functions.php and being a global constant
  $formARRAY = json_decode(FORMJSON);

  // Init strigns for JS generator (needed to handle everything) ///////////////
  // ---------------------------------------------------------------------------
  $checkFilledJS = "";    // JS for checking empty fields
  $ref2Select2JS = "";    // references to Select2-controls Javascript
  $initSelectsJS = "";    // js to initialize select fields (single or multiple)

?><!DOCTYPE html>
<html prefix="og: http://ogp.me/ns#" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-GB" lang="en-GB" dir="ltr">
  <head>
      <!-- Metas + Title -->
      <meta http-equiv="X-UA-Compatible" content="IE=edge">
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <meta http-equiv="content-type" content="text/html; charset=utf-8" />

      <title><?=PROJECT?> : Κατάλογοι Αντικειμένων'</title>

      <!-- CSS needed -->
      <link href="https://fonts.googleapis.com/css?family=Ubuntu:400,700&display=swap" rel="stylesheet">
      <link rel="stylesheet" href="/css/bootstrap.min.css" /><!-- v4.4.1 -->
      <link rel="stylesheet" href="/css/select2.min.css" /><!-- v4.0.10 -->
      <link rel="stylesheet" href="/css/pi.css" />
      <style>
pre {
 white-space: pre-wrap;       /* css-3 */
 white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
 white-space: -pre-wrap;      /* Opera 4-6 */
 white-space: -o-pre-wrap;    /* Opera 7 */
 word-wrap: break-word;       /* Internet Explorer 5.5+ */
}
      </style>
  </head>
  <body>
  <?php // Menu ----------------------------------------------------------------
        include("includes/menu.php");
  ?>

    <div class="pi-container">
      <div class="row">
        <div class="col-md-12">
          <h2>Κατάλογοι Αντικειμένων</h2>
          <h4>Η διεργασία είναι υπό δοκιμή.</h4>

          <div class=""><!-- class='row' : conflicts with select2 width @_@ -->
            <form>

              <div class="form-group  col-md-12">
                <label for="ccode">Κωδικός Κατηγορίας</label>
                <select id="ccode" class="select-field" name="ccode" style="width:100%;">
                    <option></option>
                    <option value="0">ΟΛΑ &mdash; (<?=$totals['all']?>)</option>
                    <?php
                        $ccAr = json_decode(CODEJSON);
                        foreach ($ccAr as $key => $val) {
                          if (isset($totals[$val->id])) {
                              echo "<option value='". $val->id ."'>". $val->id ." : ". $val->tag . " &mdash; (". $totals[$val->id]  .")</option>
                              ";
                          }
                        }
                    ?>
                </select>
              </div>

            </form>
          </div>

          <hr />

          <pre>
            <?php
            print_r($items);
            ?>
          </pre>


        </div>
      </div>
    </div>
    <!-- DOM ENDS HERE -->

      <!-- scripts and libraries
      load and register one by one, so you don't need to worry about if they are ready -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-migrate/1.4.1/jquery-migrate.min.js"></script>
    <script src="/js/bootstrap.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.10/js/select2.full.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.10/js/i18n/el.js"></script>

    <!-- scripts and libraries
    load and register one by one, so you don't need to worry about if they are ready
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-migrate/1.4.1/jquery-migrate.min.js"></script>
  <script src="/js/bootstrap.min.js"></script>
-->
  <script>
  // NOW RUN EVERYTHING AFTER JQUERY (AND DOM ready)
  // -----------------------------------------------------------------------------
  ////////////////////////////////////////////////////////////////////////////////

  var waitingResponse = false;    // flag for an ajax request that was sent and still waiting response

  // functions needed
  // ---------------------------------------------------------------------------

  // pure JS ajax GET request
  // return data as JSON
  // no fancy things like UTF8; if needed use base64 ---------------------------
  function ajax_get(url, callback) {
      var xmlhttp = new XMLHttpRequest();
      xmlhttp.onreadystatechange = function() {
          if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

              try {
                  var data = JSON.parse(xmlhttp.responseText);
              } catch(err) {
                  console.log(err.message + " in " + xmlhttp.responseText);
                  return;
              }
              callback(data);
          }
      };

      xmlhttp.open("GET", url, true);
      xmlhttp.send();
  }

  // menu management
  // ---------------------------------------------------------------------------
  $('.dropdown-item').on('click', function(e){
    e.preventDefault();

    // all data-goto have the format: 'method,uri_address'
    // uri_address is the url to call
    // method options:
    // * url : means goto url (redirect)
    // * ajax : means call url via ajax; if 'success = true' then goto '/' after that
    // -------------------------------------------------------------------------
    var opt = $(this).data('goto').split(',');  // split data-goto

    if (opt[0] == 'url') {    // if method = url
      window.location.href = opt[1];
    }
    else {                    // else, method = ajax
      ajax_get(opt[1], function(response) {
        if (response.success) {
          window.location.href = '/';
        }
      });
    }
  });


  // 01. MENU MANAGEMENT
  // ---------------------------------------------------------------------------
  //////////////////////////////////////////////////////////////////////////////

  // menu management
  // ---------------------------------------------------------------------------
  $('.dropdown-item').on('click', function(e) {
    e.preventDefault();

    if (!waitingResponse) {
      waitingResponse = true;

      // var r = confirm("Δεν έχετε αποθηκεύσει το τρέχον αντικείμενο!\nΕίστε σίγουροι ότι θέλετε να εγκαταλείψετε τη σελίδα;");
      r = true;     // no need for confirmation
      if (r == true) {

        // all data-goto have the format: 'method,uri_address'
        // uri_address is the url to call
        // method options:
        // * url : means goto url (redirect)
        // * ajax : means call url via ajax; if 'success = true' then goto '/' after that
        // -----------------------------------------------------------------------
        var opt = $(this).data('goto').split(',');  // split data-goto

        if (opt[0] == 'url') {    // if method = url
          window.location.href = opt[1];
        }
        else {                    // else, method = ajax
          ajax_get(opt[1], function(response) {
            if (response.success) {
              window.location.href = '/';
            }
          });
        }

      }
      else {
        // user did not confirmed the selection; do nothing
      }

      waitingResponse = false;
    }

  });


  // 02. INIT AND HANDLE SEARCH FIELDS
  // (select2 CCODE)
  // ---------------------------------------------------------------------------
  //////////////////////////////////////////////////////////////////////////////

  // FUNCTION: Get selected value(s) of Select2 control
  // pass arg: source-element
  // return: value(s) comma-separated
  // ---------------------------------------------------------------------------
  function getValues(srcElm) {
      var res;
      var obj = srcElm.select2('data');      // get delected data array

      if (obj.length === 0)    return '';    // if empty list then nothig is selected
      else {
          var i = 0;
          obj.forEach(function(elm){         // loop through object elements array

              if (i)  res += ',' + elm.id;   // if not first item, prepend ',' befor value(id)
              else    res = elm.id;        	 // else set (first) checked value

              i++;
          });
      }
      return res;
  }

  // patch select2-multiple widths
  // ---------------------------------------------------------------------------
  $('.select-field').select2({ width: '100%' });

  // init CCODE select2
  // ---------------------------------------------------------------------------
  var ccode = $('#ccode');
  ccode.select2({ placeholder: ' ', allowClear: true });

  $('form').on('keyup change paste', 'input, select, textarea', function(){
     console.log('Form changed!');
     window.location.href = '/ui-catalogs.php?id=' + getValues(ccode);
  });
  </script>

  </body>
</html>