const { readBlock, writeBlock } = require('./domain/block');

/*
 * data {string} - Data to be parsed
 */
module.exports = function process(lines) {
  const groupsArr = readBlock(lines);

  // Calculate total of each group
  const groupsWithTotals = groupsArr.map(g => ({
    ...g,
    total: g.records.reduce((total, record) => total + record.value, g.total),
  }));

  // Calculate balance
  const balance = groupsWithTotals.reduce((balance, g) => {
    if (g.ignoreInBalance) return balance;

    return balance + g.total;
  }, 0);

  return writeBlock(balance, groupsWithTotals);
};