// Funcao para ler parametros informados pelo iTarefa via URL
// Apesar de nao ser obrigatorio, será muito útil para capturar os parametros
function getParameterByName (name, defaultReturn = null) {
  var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);
  return match ? decodeURIComponent(match[1].replace(/\+/g, ' ')) : defaultReturn;
}

// Criando um object com os parametros informados pelo iTarefa
// Observe que para cada parametro, é realizada a chamada do método getParameterByName, implementado acima
var iLMparameters = {
  iLM_PARAM_ServerToGetAnswerURL: getParameterByName("iLM_PARAM_ServerToGetAnswerURL"),
  iLM_PARAM_SendAnswer: getParameterByName("iLM_PARAM_SendAnswer"),
  iLM_PARAM_AssignmentURL: getParameterByName("iLM_PARAM_AssignmentURL"),
  iLM_PARAM_Assignment: getParameterByName("iLM_PARAM_Assignment"),
  lang: getParameterByName("lang", "pt")
};

// Set the lang parameter to the localStorage for easy access
// and no dependency to the global scope, avoind future 'strict mode' problems
try { localStorage.setItem('ivprog.lang', iLMparameters.lang); }
catch (error) { } //leo1 If NOT in iAssign 'localStorage' is undefined! Do not try: localStorage.setItem('ivprog.lang', 'pt');

// Funcao chamada pelo iTarefa quando o professor finaliza a criacao da atividade
// ou quando o aluno finaliza a resolucao do exercício
// O retorno é um JSON com os dados do exercício ou da resolucao
// Esse retorno será armazenado no banco de dados do Moodle, pelo iTarefa
function getAnswer () {
  // Se o parametro "iLM_PARAM_SendAnswer" for false,
  // entao trata-se de resolucao de atividade
  if (iLMparameters.iLM_PARAM_SendAnswer == 'false') {
    // Montar o retorno com a resposta do aluno
    var contentToSend = previousContent.split("\n::algorithm::")[0];
    contentToSend += '\n::algorithm::\n';
    contentToSend += JSON.stringify(window.program_obj);

    contentToSend += '\n::logs::';
    contentToSend += getTrackingLogs();

    return contentToSend;

  } else {
    // Montar o retorno com a criacao da atividade do professor
    var ret = ' { ' + prepareTestCases() 
        + ',\n"settings_data_types": \n' + JSON.stringify($('form[name="settings_data_types"]').serializeArray()) 
        + ',\n"settings_commands": \n' + JSON.stringify($('form[name="settings_commands"]').serializeArray()) 
        + ',\n"settings_functions": \n' + JSON.stringify($('form[name="settings_functions"]').serializeArray()) 
        + ' } ';

    if ($("input[name='include_algo']").is(':checked')) {
      ret += '\n::algorithm::\n';
      ret += JSON.stringify(window.program_obj);
    }

    return ret;
  }
}

function prepareTestCases () {
  var ret = ' \n "testcases" : [ '
  var test_cases_array = $('form[name="test_cases"]').serializeArray();
  for (var i = 0; i < test_cases_array.length; i = i + 2) {
    ret += '\n{ ';
    ret += '\n "input": [';
    var inps = test_cases_array[i].value.match(/[^\r\n]+/g);
    if (inps) {
      for (var j = 0; j < inps.length; j++) {
          ret += '"' + inps[j] + '"';
          if ((j + 1) < inps.length) {
              ret += ', ';
          }
      }
    }
    ret += '], \n "output": [';
    var outs = test_cases_array[i+1].value.match(/[^\r\n]+/g);
    if (outs) {
      for (var j = 0; j < outs.length; j++) {
          ret += '"' + outs[j] + '"';
          if ((j + 1) < outs.length) {
              ret += ', ';
          }
      }
    }
    ret += ']';
    ret += '\n}'
    if ((i + 2) < test_cases_array.length) {
      ret += ',';
    }
  }
  ret += '\n] ';
  return ret;
}

// Funcao chamada pelo iTarefa para receber a nota do aluno na atividade
// O retorno é um valor entre 0.0 e 1.0
function getEvaluation () {
  // var strContent = getAnswer(); alert('./ivprogh/js/getEvaluation(): aqui! ' + strContent);
  alert('./ivprogh/js/getEvaluation(): aqui! ');
  if (iLMparameters.iLM_PARAM_SendAnswer == 'false') {
    // A chamada do método abaixo é obrigatoria!
    // Observe que a chamada parte do iLM para o iTarefa
    //parent.getEvaluationCallback(window.studentGrade);

    runCodeAssessment();
  }
}


var testCases = null;
var settingsDataTypes = null;
var settingsCommands = null;
var settingsFunctions = null;
var algorithm_in_ilm = null;
var previousContent = null;

// Funcao para que o iMA leia os dados da atividade fornecidos pelo iTarefa
function getiLMContent () {

  // O parametro "iLM_PARAM_Assignment" fornece o URL do endereço que deve ser
  // requisitado via AJAX para a captura dos dados da atividade
  $.get(iLMparameters.iLM_PARAM_Assignment, function (data) {
    if (iLMparameters.iLM_PARAM_SendAnswer == 'false') {
      previousContent = data;
      prepareActivityToStudent(data);
    } else {

    }
  });
}

function prepareActivityToStudent (ilm_cont) {
  var content = JSON.parse(ilm_cont.split('\n::algorithm::')[0]);
  testCases = content.testcases;
  settingsDataTypes = content.settings_data_types;
  settingsCommands = content.settings_commands;
  settingsFunctions = content.settings_functions;
  algorithm_in_ilm = ilm_cont.split('\n::algorithm::')[1].split('\n::logs::')[0];

  window.program_obj.functions = JSON.parse(algorithm_in_ilm).functions;
  window.program_obj.globals = JSON.parse(algorithm_in_ilm).globals;
  renderAlgorithm();
}

// Funcao para organizar se para criacao, visualizacao ou resolucao de atividade
function prepareEnvironment () {
  if ((iLMparameters.iLM_PARAM_AssignmentURL == "true") && (iLMparameters.iLM_PARAM_SendAnswer == "true")) {
    prepareActivityCreation();
  }
}

$(document).ready(function() {

  // Se iLM_PARAM_SendAnswer for false, entao trata-se de resolucao de atividade,
  // portanto, a "DIV" de resolucao é liberada
  if (iLMparameters.iLM_PARAM_SendAnswer == 'false') {
    //$('.resolucao').css("display","block");
    getiLMContent();


    $( document ).ready(function() {
      $('.div_to_body').mousemove(function(e) {
          trackingMatrix.push(adCoords(e, 0));
      });

      $('.div_to_body').click(function(e) {
          trackingMatrix.push(adCoords(e, 1));                    
      });

    });

  } else {
    // Caso nao esteja em modo de resolucao de atividade, a visualizacao no momento
    // é para a elaboracao de atividade:
    //$('.elaboracao').css("display","block");
  }
});

// Funcao para preparar a interface para o professor criar atividade:
function prepareActivityCreation () {

  $('.add_accordion').addClass('accordion');

  $('.default_visual_title').toggle();
  $('.default_visual_title').append('<span>'+LocalizedStrings.getUI('text_teacher_algorithm')+'</span>');
  $('.height_100').removeClass('height_100');
  $('.main_title').remove();
  $('.ui.accordion').addClass('styled');
  
  $('<div class="ui checkbox"><input type="checkbox" name="include_algo" class="include_algo" tabindex="0" class="hidden"><label>'+LocalizedStrings.getUI('text_teacher_algorithm_include')+'</label></div>').insertBefore('.content_margin');
  
  var cases_test_div = $('<div class="ui accordion styled"><div class="active title"><i class="dropdown icon"></i>'+LocalizedStrings.getUI('text_teacher_test_case')+'</div><div class="active content"></div></div>');

  cases_test_div.insertBefore('.accordion');

  var config_div = $('<div class="ui accordion styled"><div class="title"><i class="dropdown icon"></i>'+LocalizedStrings.getUI('text_teacher_config')+'</div><div class="content"></div></div>');

  config_div.insertAfter(cases_test_div);

  $('.ui.accordion').accordion();

  $('.ui.checkbox').checkbox();

  prepareTableSettings(config_div.find('.content'));

  prepareTableTestCases(cases_test_div.find('.content'));
}

function prepareTableTestCases (div_el) {

  var table_el = '<form name="test_cases"><table class="ui blue table"><thead><tr><th width="30px">#</th><th>'+LocalizedStrings.getUI('text_teacher_test_case_input')+'</th><th>'+LocalizedStrings.getUI('text_teacher_test_case_output')+'</th><th width="80px">'+LocalizedStrings.getUI('text_teacher_test_case_actions')+'</th></tr></thead>'
      + '<tbody class="content_cases"></tbody></table></form>';

  div_el.append(table_el);

  div_el.append('<button class="ui teal labeled icon button button_add_case"><i class="plus icon"></i>'+LocalizedStrings.getUI('text_teacher_test_case_add')+'</button>');

  $('.button_add_case').on('click', function(e) {
    addTestCase();
  });

}

var hist = false;

function addTestCase () {
  var new_row = $('<tr><td class="counter"></td><td class="expandingArea"><textarea rows="1" name="input" class="text_area_input"></textarea></td><td class="expandingArea"><textarea rows="1" name="output" class="text_area_output"></textarea></td><td class="btn_actions"><div class="ui button_remove_case"><i class="red icon times large"></i></div></td></tr>');
  $('.content_cases').append(new_row);

  new_row.find('.button_remove_case').click(function(e) {
    new_row.remove();
    updateTestCaseCounter();
  });

  $('textarea').on('input', function(e) {
    var lines = $(this).val().split('\n').length;
    $(this).attr('rows', lines);
  });
  
  updateTestCaseCounter();

   $('.text_area_output').keydown(function(e) {
    var code = e.keyCode || e.which;
    if (code == 9 && $(this).closest("tr").is(":last-child")) {
      hist = true;
      addTestCase();
    }
   });
   if (!hist) {
    $( ".content_cases tr:last" ).find('.text_area_input').focus();
   } else {
    hist = false;
   }
}

function updateTestCaseCounter () {
  var i = 1;
  $( ".content_cases" ).find('tr').each(function() {
    $( this ).find('.counter').text(i);
    i ++;
  });
}

function prepareTableSettings (div_el) {
  div_el.append('<h4 class="ui header">'+LocalizedStrings.getUI('text_teacher_data_types')+'</h4>');
  div_el.append('<form name="settings_data_types"><div class="ui stackable five column grid">'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="integer_data_type" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('integer')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="real_data_type" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('real')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="text_data_type" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="boolean_data_type" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('boolean')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="void_data_type" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('void')+'</label></div></div>'
    +'</div></form>');


  div_el.append('<h4 class="ui header">'+LocalizedStrings.getUI('text_teacher_commands')+'</h4>');
  div_el.append('<form name="settings_commands"><div class="ui stackable three column grid">'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_read" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_read_var')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_write" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_write_var')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_comment" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_comment')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_attribution" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_attribution')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_functioncall" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_functioncall')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_iftrue" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_iftrue')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_repeatNtimes" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_repeatNtimes')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_while" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_whiletrue')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_dowhile" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_dowhiletrue')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="commands_switch" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_switch')+'</label></div></div>'
    +'</div></form>');

  div_el.append('<h4 class="ui header">'+LocalizedStrings.getUI('text_teacher_functions')+'</h4>');
  div_el.append('<form name="settings_functions"><div class="ui stackable one column grid">'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="functions_creation" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_teacher_create_functions')+'</label></div></div>'
    +'<div class="column"><div class="ui checkbox"><input type="checkbox" name="functions_move" checked tabindex="0" class="hidden small"><label>'+LocalizedStrings.getUI('text_teacher_create_movement_functions')+'</label></div></div>'
    +'</div></form>');

  $('.ui.checkbox').checkbox();


}

function getTrackingLogs () {
  var ret = "";
  for (var i = 0; i < trackingMatrix.length; i++) {
    ret += "\n" + trackingMatrix[i][0] + "," + trackingMatrix[i][1] + "," + trackingMatrix[i][2];
    if (trackingMatrix[i][2] === 1) {
      ret += ',"' + trackingMatrix[i][3] + '"';
    }
  }
  return ret;
}

// Tracking mouse movements
var trackingMatrix = [];

function adCoords(e, code){
  var x = e.pageX; 
  var y = e.pageY;
  if (code === 1) {
    return [x, y, code, e.target.classList['value']];
  } else {
    return [x, y, code];
  }
}

$( document ).ready(function() {

  if (inIframe()) {
    orderIcons();
  }

});

function orderIcons() {
  $('.ui.one.column.doubling.stackable.grid.container').css('display', 'none');
  $('.only_in_frame').css('display', 'block');
  
}


function inIframe () {
  try {
    return window.self !== window.top;
  } catch (e) {
    return true;
  }
}