const faker = require('faker');

const item = ({
  donor,
  end,
  eventId,
  index,
  quantityAvailable,
  soldCount,
  start,
  startPrice,
  subtitle,
  title,
  type,
}) => {
  const isAuction = type === 'auction';
  const startingPrice = startPrice || faker.random.number({ min: 100, max: 500 });
  const bidCount = isAuction ? faker.random.number({ min: 0, max: 5 }) : 0;
  const bidIncrement = isAuction ? faker.random.number({ min: 5, max: 100 }) : null;

  currentPrice = !isAuction ? null : startPrice;
  currentPrice = bidCount > 0
    ? currentPrice + faker.random.number({ min: (bidIncrement * bidCount), max: (bidIncrement * bidCount * 4) })
    : currentPrice;

  const estimatedValue = isAuction ?
    (startingPrice * faker.random.number({ min: 15, max: 20 })) : 0;
  const reservePrice = isAuction && faker.random.boolean() ?
    (startingPrice * faker.random.number({ min: 5, max: 10 })) : 0;

  const isShippable = faker.random.boolean();

  return {
    eventId: eventId || faker.random.uuid(),
    title: title || faker.lorem.sentence(),
    subtitle: subtitle === false ? null : subtitle || faker.lorem.sentence(),
    donor: donor === false ? null : donor || faker.name.findName(),
    description: faker.lorem.sentences(faker.random.number({ min: 2, max: 5 }, '. ')),
    images: type === 'ticket' ? null : [
      { url: faker.image.imageUrl(640, 480, 'cats', true, true) },
      { url: faker.image.imageUrl(640, 480, 'cats', true, true) },
      { url: faker.image.imageUrl(640, 480, 'cats', true, true) },
    ],
    type: type || faker.random.arrayElement(),
    quantityAvailable: quantityAvailable || 1,
    soldCount: soldCount || 0,
    currentPrice: currentPrice === false ? null : faker.random.number({ }),
    startingPrice,
    reservePrice,
    estimatedValue,
    currentWinner: null,
    bidders: [],
    bidCount,
    bidIncrement,
    catalogNumber: index || null,
    start,
    end: end || start + (3*60*60*1000),
    hideBeforeStart: faker.random.boolean(),
    hideAfterEnd: faker.random.boolean(),
    notifyOnAvailable: faker.random.boolean(),
    isShippable,
    shippingCost: isShippable ? faker.random.number({ min: 5.5, max: 39.98 }) : null,
    organizationTake: isAuction ? faker.random.number({ min: 0.25, max: 1 }) : 1,
  };
};

const getItems = ({
  eventId = faker.random.uuid(),
  auction = 10,
  ticket = 4,
  eventStart = Date.now(),
  eventEnd = (Date.now() + (3*60*60*1000)),
}) => {
  let items = [];

  if (typeof ticket === 'number') {
    for (let i = 0; i < ticket; i++) {
      items.push(item({
        donor: false,
        end: eventEnd,
        eventId,
        index: false,
        start: eventStart,
        subtitle: false,
        type: 'ticket',
      }));
    }
  }

  if (typeof ticket === 'object' && ticket.length) {
    for (let i = 0; i < ticket.length; i++) {
      items.push(item({
        donor: false,
        end: ticket[i].endSale,
        eventId,
        index: false,
        quantityAvailable: ticket[i].capacity,
        soldCount: (ticket[i].capacity - ticket[i].available),
        start: ticket[i].startSale,
        startPrice: ticket[i].price,
        subtitle: false,
        type: 'ticket',
        title: ticket[i].name,
      }));
    }
  }

  if (typeof auction === 'number') {
    for (let i = 0; i < auction; i++) {
      items.push(item({
        end: eventEnd,
        eventId,
        index: i,
        start: eventStart,
        type: 'auction',
      }));
    }
  }

  return items;
};

module.exports = getItems;