riot-api-stats/dist/stats.js

Riot API Stats service

'use strict';Object.defineProperty(exports, "__esModule", { value: true });const skipStatKeys = [
'largest', 'Score', 'item'];

const statKeyMap = {
  'winner': 'wins' };

const initialStats = {
  'sessionsPlayed': 0 };

const mapStatKey = statKey => statKeyMap[statKey] || statKey;
const int = numLike => numLike | 0;
const add = (a, b) => int(a) + int(b);exports.default =

{
  fromMatches(summonerId, region, matches) {
    return matches.reduce((aggregate, match) => {
      let { participantId } = match.participantIdentities.find(id => id.player.summonerId === summonerId);
      let participant = match.participants[participantId - 1];
      let championId = participant.championId;
      let champStats = participant.stats;
      // Initialize the champion stats
      let stats = Object.assign({}, initialStats, aggregate[championId]);
      // Add statistics
      for (let origStatKey in champStats) {
        // Skip unwanted stats
        if (skipStatKeys.some(skipKey => origStatKey.includes(skipKey))) {
          continue;
        }
        let statKey = mapStatKey(origStatKey);
        // Force transform into ints, the api doesn't provide any floats in stats.
        stats[statKey] = add(stats[statKey], champStats[statKey]);
      }
      // Add total games played
      stats['sessionsPlayed']++;

      // Merge the overriden stats with the aggregate
      return Object.assign({}, aggregate, { [championId]: stats });
    }, {});
  } };