<?php

function search_main_form($form, &$form_state) {
  $location_li2 = array(array(""), array("Albania"), array("Austria"), array("Belarus"), array("Belgium"), array("Bhutan"), array("Bulgaria"), array("Cambodia"), array("Canada", array("Alberta", "Atlantic", "British Columbia|BC", "Manitoba|MB", "Ontario|ON", "Quebec|QC|PQ", "Saskatchewan|SK")), array("Chile", array("Maipo")), array("China", array("Anhui", "Beijing", "Boxing", "Chongqing", "Dezhou", "Foshan", "Fujian", "Guangdong|GuangDong", "Guangxi", "Guizhou", "Guodian", "Hainan", "Hebei|Heibei", "Heilongjiang", "Henan|Henau|Hennan|Hnan", "HuangHe", "Hunan|HuNan", "Jiangsu", "Jiangxi", "Jilin", "Jinan", "Liaocheng", "Nanjing", "Nantong", "Shaanxi", "Shandong|Shangdong|SD", "Shanghai", "Shanxi", "Shenxian", "Sichuan", "Siyang", "Tianjin", "Wenzu", "Wuzhou", "Xinjiang", "Yunnan|Yun Nan", "Zhangqiu")), array("Colombia", array("Antioquia", "Atlantico", "Caldas", "Cundinamarca", "Quindio")), array("Croatia"), array("Czech Republic"), array("Denmark"), array("France"), array("Germany"), array("Hong Kong"), array("Hungary"), array("India", array("Mizoram")), array("Italy"), array("Japan", array("Aichi", "Aomori", "Chiba", "Ehime", "Fukushima", "Gunma", "Hokkaido", "Ibaraki", "Ishikawa", "Iwate", "Kagoshima", "Kyoto", "Nagasaki", "Niigata", "Osaka", "Saga", "Saitama", "Shiga", "Shizuoka", "Tochigi", "Yamagata", "Yamaguchi", "Yamanashi")), array("Laos"), array("Latvia"), array("Lithuania"), array("Malaysia", array("Sarawak", "Selangor")), array("Mexico", array("Morelos")), array("Myanmar"), array("Netherlands"), array("Philippines"), array("Poland"), array("Portugal"), array("Romania"), array("Russia"), array("Serbia"), array("Singapore"), array("Slovakia"), array("Slovenia"), array("South Korea"), array("Spain", array("Madrid")), array("Switzerland"), array("Taiwan"), array("Thailand"), array("Turkey"), array("USA", array("Alabama|AL", "Arizona|AZ", "Arkansas|AR", "California|CA", "Colorado|CO", "Georgia|GA", "Hawaii|HI", "Illinois|IL", "Indiana|IN", "Iowa|IA", "Kansas|KS", "Kentucky|KY", "Michigan|MI", "Minnesota|MN", "Mississippi|MS", "Missouri|MO", "Nebraska|NE", "Nevada|NV", "North Carolina|NC", "North Dakota|ND", "Ohio|OH", "Oklahoma|OK", "Pennsylvania|PA", "South Carolina|SC", "South Dakota|SD", "Tennessee|TN", "Texas|TX", "Utah|UT", "Virginia|VA", "Wisconsin|WI", "Wyoming|WY")), array("Ukraine"), array("United Kingdom"), array("Uruguay"), array("Viet Nam", array("An Giang", "Bac Lieu", "Bac Ninh", "Binh Duong", "Can Tho", "Dien Bien", "Dong Nai|DongNai", "Dong Thap", "Hai Duong", "Hai Phong", "Hanoi", "Hau Giang", "Ho Chi Minh", "Hung Yen", "Lao Cai", "Long An", "Nam Dinh", "Nghe An", "Quang Ninh", "Son La", "Tay Ninh", "Thai Binh", "Tien Giang", "Yen Bai")));


  $form['form_wrapper'] = array(
    '#prefix' => '<div id="form_wrapper">',
    '#suffix' => '</div>',
  );

  $form['form_wrapper']['properties'] = array(
    '#prefix' => '<h2>Filter by sequence properties</h2>
                  <div><table width="50%">',
    '#suffix' =>  '</table></div>', //<br>',
  );


//Sample Collection Location
  //drupal_set_message(print_r($location_li2), true); //$location_li2 is not being read correctly
  $country_li = array();
  $state_li = array("" => "");
  foreach($location_li2 as $location_li) {
    $country_li[$location_li[0]] = $location_li[0];
    if (isset($_POST['ddl1b']) && in_array($location_li[0], $_POST['ddl1b']) && sizeof($location_li) > 1) {
      foreach($location_li[1] as $state) {
        $state_li[$location_li[0].':'.$state] = explode('|', $state)[0]; //include country in state value
      }
    }
  }
  $form['#state_li'] = $state_li;
  $form['form_wrapper']['properties']['collection_location']['title_wrapper'] = array(
    '#prefix' => '<tr><td class="search_input_td" width="50%"><b>Sample Collection Location</b></td><td class="search_input_td">',
    '#suffix' => '</td></tr>',
  );
  $form['form_wrapper']['properties']['collection_location']['title_wrapper']['ddl1b'] = array(
    '#prefix' => '<div style="display:inline-block; width:50%">', //width:49%">',
    '#suffix' => '</div>',
    '#type' => 'select',
    '#multiple' => TRUE,
    '#options' => $country_li,
    '#id' => 'ddl1b',
    '#attributes' => array(
      'autocomplete' => 'off',
      //'onchange' => '',
    ),
    '#ajax' => array(
      'callback' => 'add_state_select',
      'wrapper' => 'ddl2b_wrapper',
      'progress' => array('type' => 'none'),
    ),
  );
  $form['form_wrapper']['properties']['collection_location']['title_wrapper']['ddl2b_wrapper'] = array(
    '#prefix' => '<div id="ddl2b_wrapper" style="display:inline-block; width:50%">',
    '#suffix' => '</div>',
  );
  $form['form_wrapper']['properties']['collection_location']['title_wrapper']['ddl2b_wrapper'] = add_state_select($form, $form_state);

  $form['form_wrapper']['table_button'] = array(
    '#type' => 'submit',
    '#value' => 'Submit',
    '#submit' => array('activate_table'),
    '#ajax' => array(
      'callback' => 'rebuild_form',
      'wrapper' => 'form_wrapper',
    ),
  );

  if (!empty($form_state['table'])) {
    $form['form_wrapper']['raw_html'] = array(
      '#type' => 'markup',
      '#markup' => '<br><br>TEST!',
    );
  }

  return $form;
}


function rebuild_form($form, $form_state) {
  return $form['form_wrapper'];
}

function activate_table($form, &$form_state) {
  $form_state['table'] = TRUE;
  $form_state['rebuild'] = TRUE;
}

function add_state_select($form, &$form_state) {
  //drupal_set_message('triggered add_state_select()');
  $state_li = $form['#state_li'];
  $form['form_wrapper']['properties']['collection_location']['title_wrapper']['ddl2b_wrapper'] = array(
    '#prefix' => '<div id="ddl2b_wrapper" style="display:inline-block; width:50%">',
    '#suffix' => '</div>',
  );
  if (sizeof($state_li) > 1) {
    //drupal_set_message('triggered build conditional');
    $form['form_wrapper']['properties']['collection_location']['title_wrapper']['ddl2b_wrapper']['ddl2b'] = array(
      '#type' => 'select',
      '#multiple' => TRUE,
      '#options' => $state_li,
      '#id' => 'ddl2b',
      '#attributes' => array(
        'autocomplete' => 'off',
        //'multiple' => 'true',
      ),
    );
  }
  return $form['form_wrapper']['properties']['collection_location']['title_wrapper']['ddl2b_wrapper'];
}