TWtablero/tablero

define([
 'flight/lib/component',
 'component/mixins/with_auth_token_from_hash',
 'component/mixins/repositories_urls',
 'with-request'
 ], function (defineComponent, withAuthTokeFromHash, repositoriesURLs, withRequest) {
  'use strict';
  return defineComponent(prioritizationManager, withAuthTokeFromHash, repositoriesURLs, withRequest);

  function prioritizationManager() {

    this.changePriority = function (event, params) {
      var newPriority;
      if (Number(params.nextElement.priority) === 0) {
        newPriority = Number(params.previousElement.priority) + 1;
      } else {
        newPriority = (Number(params.previousElement.priority) + Number(params.nextElement.priority)) / 2;
      }

      var eventCallback = {
        eventCallback: 'ui:got:issues'
      };
      params.element.priority = newPriority;
      var data = {
        issue: params.element
      };

      this.trigger(document, 'data:issue:priorityChanged', params.element);
      this.savePriority(data);
    };

    this.savePriority = function (data) {
      var dataToSend = {
        project: data.issue.project,
        issue: data.issue.id,
        priority: data.issue.priority
      };

      this.put({
        url: 'priorities',
        data: JSON.stringify(dataToSend),
        contentType: 'application/json'
      });
    };

    this.loadPriority = function (event, projectIdentifiers) {

      _.each(projectIdentifiers.projects, function (value, key, list) {

        this.get({
          url: '/priorities?project=' + value,
          success: function (data) {
            this.trigger(document, 'data:got:priority', data);
          }
        });

      }.bind(this));

    };



    this.after('initialize', function () {
      this.on('data:issues:issueMoved', this.changePriority);
      this.on('data:issues:priorityChanged', this.changePriority);
      this.on('ui:needs:priority', this.loadPriority);
    });
  }
});