//= require active_scaffold
//= require js-routes

function TasksScheduler() {
}

TasksScheduler.Status = function () {
};

// Shortcut
var _S = TasksScheduler.Status;

_S.initialized = false;

_S.init = function (url, interval_max) {
  if (!_S.initialized) {
    _S.initialized = true;
    _S.url = url;
    _S.interval_max = interval_max;
    _S.update();
  }
};

_S.content = function () {
  return $('#TaskScheduler_Status_Content');
};

_S.status = function () {
  return $('#TaskScheduler_Status_Status');
};

_S.update_status = function () {
  _S.status().html(
    "Updating in " + _S.interval + " seconds..."
  );
};

_S.check = function () {
  if (_S.interval <= 0) {
    _S.update();
  } else {
    _S.interval--;
    _S.update_status();
    setTimeout(_S.check, 1000);
  }
};

_S.update = function () {
  $.ajax({
    url: _S.url,
    success: function (result) {
      _S.content().html(result);
    },
    complete: function (result) {
      _S.interval = _S.interval_max + 1;
      _S.last_update = new Date();
      _S.check();
    }
  });
};

TasksScheduler.Alert = function () {
};

_A = TasksScheduler.Alert;

_A.DEFAULT_REFRESH_INTERVAL = 5000;
_A.DEFAULT_ELEMENT_SELECTOR = '#tasks_scheduler_alert';
_A.CSS_CLASSES_PREFIX = 'alert_';
_A.url = Routes.status_tasks_scheduler_daemon_path();

_A.init = function (options) {
  options = typeof options !== 'undefined' ? options : {};
  $(document).ready(function () {
    _A.options = options;
    if (!_A.options.refresh_interval) {
      _A.options.refresh_interval = _A.DEFAULT_REFRESH_INTERVAL;
    }
    if (!_A.options.element_selector) {
      _A.options.element_selector = _A.DEFAULT_ELEMENT_SELECTOR;
    }
    _A.refresh();
  });
};

_A.setNextRefresh = function () {
  setTimeout(_A.refresh, _A.options.refresh_interval);
};

_A.refresh = function () {
  $.ajax({
    url: _A.url,
    success: function (result) {
      var alert = $(_A.options.element_selector);
      var pattern = new RegExp('(^|\\s)' + _A.CSS_CLASSES_PREFIX + "\\S+", 'g');
      alert.removeClass (function (index, className) {
        return (className.match (pattern) || []).join(' ');
      });
      alert.addClass(_A.resultToCssClass(result));
    },
    complete: function (result) {
      _A.setNextRefresh();
    }
  });
};

_A.resultToCssClass = function(result) {
  var suffix = "ok"
  if (!result.daemon_running) {
    suffix = "daemon_stopped";
  } else if (!result.tasks_all_ok) {
    suffix = "task_failed";
  }
  return _A.CSS_CLASSES_PREFIX + suffix;
};