import { ajax } from 'discourse/lib/ajax';
/**
  A model representing a Topic's details that aren't always present, such as a list of participants.
  When showing topics in lists and such this information should not be required.
**/
import NotificationLevels from 'discourse/lib/notification-levels';
import RestModel from 'discourse/models/rest';

const TopicDetails = RestModel.extend({
  loaded: false,

  updateFromJson(details) {
    const topic = this.get('topic');

    if (details.allowed_users) {
      details.allowed_users = details.allowed_users.map(function (u) {
        return Discourse.User.create(u);
      });
    }

    if (details.participants) {
      details.participants = details.participants.map(function (p) {
        p.topic = topic;
        return Ember.Object.create(p);
      });
    }

    this.setProperties(details);
    this.set('loaded', true);
  },

  notificationReasonText: function() {
    let level = this.get('notification_level');
    if (typeof level !== 'number') { level = 1; }

    let localeString = `topic.notifications.reasons.${level}`;
    if (typeof this.get('notifications_reason_id') === 'number') {
      const tmp = localeString +  "_" + this.get('notifications_reason_id');
      // some sane protection for missing translations of edge cases
      if (I18n.lookup(tmp)) { localeString = tmp; }
    }

    if (Discourse.User.currentProp('mailing_list_mode') && level > NotificationLevels.MUTED) {
      return I18n.t("topic.notifications.reasons.mailing_list_mode");
    } else {
      return I18n.t(localeString, { username: Discourse.User.currentProp('username_lower') });
    }
  }.property('notification_level', 'notifications_reason_id'),


  updateNotifications(v) {
    this.set('notification_level', v);
    this.set('notifications_reason_id', null);
    return ajax("/t/" + (this.get('topic.id')) + "/notifications", {
      type: 'POST',
      data: { notification_level: v }
    });
  },

  removeAllowedGroup(group) {
    const groups = this.get('allowed_groups');
    const name = group.name;

    return ajax("/t/" + this.get('topic.id') + "/remove-allowed-group", {
      type: 'PUT',
      data: { name: name }
    }).then(() => {
      groups.removeObject(groups.findBy('name', name));
    });
  },

  removeAllowedUser(user) {
    const users = this.get('allowed_users');
    const username = user.get('username');

    return ajax("/t/" + this.get('topic.id') + "/remove-allowed-user", {
      type: 'PUT',
      data: { username: username }
    }).then(() => {
      users.removeObject(users.findBy('username', username));
    });
  }
});

export default TopicDetails;