import { ValidatedMethod } from 'meteor/mdg:validated-method';
import { RateLimiterMixin } from 'ddp-rate-limiter-mixin';
import CreatureProperties from '/imports/api/creature/creatureProperties/CreatureProperties.js';
import { assertEditPermission } from '/imports/api/sharing/sharingPermissions.js';
import getRootCreatureAncestor from '/imports/api/creature/creatureProperties/getRootCreatureAncestor.js';
import computeCreature from '/imports/api/engine/computeCreature.js';

const flipToggle = new ValidatedMethod({
  name: 'creatureProperties.flipToggle',
  validate({_id}){
		if (!_id) throw new Meteor.Error('No _id', '_id is required');
  },
  mixins: [RateLimiterMixin],
  rateLimit: {
    numRequests: 5,
    timeInterval: 5000,
  },
  run({_id}) {
    // Permission
    let property = CreatureProperties.findOne(_id, {
      fields: {type: 1, ancestors: 1, enabled: 1, disabled: 1}
    });
    if (property.type !== 'toggle'){
      throw new Meteor.Error('wrong property',
        'This method can only be applied to toggles');
    }
    if (!property.enabled && !property.disabled){
      throw new Meteor.Error('Computed toggle',
        'Can\'t flip a toggle that is computed')
    }
    let rootCreature = getRootCreatureAncestor(property);
    assertEditPermission(rootCreature, this.userId);

    // Invert the current value, disabled is the canonical store of value
    const currentValue = !property.disabled;
		CreatureProperties.update(_id, {$set: {
      enabled: !currentValue,
      disabled: currentValue,
    }}, {
			selector: {type: 'toggle'},
		});

    // Updating a toggle is likely to change the whole tree, do a full recompute
    computeCreature(rootCreature._id);
  },
});

export default flipToggle;