module.exports = {
  inputs: {
    record: {
      type: 'ref',
      required: true
    },
    values: {
      type: 'json',
      custom: value =>
        _.isPlainObject(value) &&
        (_.isUndefined(value.position) || _.isFinite(value.position)),
      required: true
    },
    request: {
      type: 'ref'
    }
  },

  fn: async function(inputs, exits) {
    if (!_.isUndefined(inputs.values.position)) {
      const lists = await sails.helpers.getListsForBoard(
        inputs.record.boardId,
        inputs.record.id
      );

      const { position, repositions } = sails.helpers.insertToPositionables(
        inputs.values.position,
        lists
      );

      inputs.values.position = position;

      repositions.forEach(async ({ id, position }) => {
        await List.update({
          id,
          boardId: inputs.record.boardId
        }).set({
          position
        });

        sails.sockets.broadcast(
          `board:${inputs.record.boardId}`,
          'listUpdate',
          {
            item: {
              id,
              position
            }
          }
        );
      });
    }

    const list = await List.updateOne(inputs.record.id).set(inputs.values);

    if (list) {
      sails.sockets.broadcast(
        `board:${list.boardId}`,
        'listUpdate',
        {
          item: list
        },
        inputs.request
      );
    }

    return exits.success(list);
  }
};