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

  fn: async function(inputs, exits) {
    const { isSubscribed, ...values } = inputs.values;

    let listId;
    if (inputs.toList) {
      listId = inputs.toList.id;

      if (listId !== inputs.list.id) {
        values.listId = listId;
      } else {
        delete inputs.toList;
      }
    } else {
      listId = inputs.list.id;
    }

    if (!_.isUndefined(values.position)) {
      const cards = await sails.helpers.getCardsForList(
        listId,
        inputs.record.id
      );

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

      values.position = position;

      repositions.forEach(async ({ id, position }) => {
        await Card.update({
          id,
          listId
        }).set({
          position
        });

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

    let card;
    if (!_.isEmpty(values)) {
      card = await Card.updateOne(inputs.record.id).set(values);

      if (!card) {
        return exits.success(card);
      }

      sails.sockets.broadcast(
        `board:${card.boardId}`,
        'cardUpdate',
        {
          item: card
        },
        inputs.request
      );

      if (inputs.toList) {
        const values = {
          type: 'moveCard',
          data: {
            fromList: _.pick(inputs.list, ['id', 'name']),
            toList: _.pick(inputs.toList, ['id', 'name'])
          }
        };

        await sails.helpers.createAction(card, inputs.user, values);
      }
    } else {
      card = inputs.record;
    }

    if (!_.isUndefined(isSubscribed)) {
      const cardSubscription = await CardSubscription.findOne({
        cardId: card.id,
        userId: inputs.user.id
      });

      if (isSubscribed !== !!cardSubscription) {
        if (isSubscribed) {
          await CardSubscription.create({
            cardId: card.id,
            userId: inputs.user.id
          }).tolerate('E_UNIQUE');
        } else {
          await CardSubscription.destroyOne({
            cardId: card.id,
            userId: inputs.user.id
          });
        }

        sails.sockets.broadcast(
          `user:${inputs.user.id}`,
          'cardUpdate',
          {
            item: {
              isSubscribed,
              id: card.id
            }
          },
          inputs.request
        );
      }
    }

    return exits.success(card);
  }
};