Changed ranking system

anuraghazra · Aug 28, 2021 · 6bfa6ee · 6bfa6ee
1 parent 1a3edca
commit 6bfa6ee
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Showing 2 changed files with 24 additions and 79 deletions.
diff --git a/src/calculateRank.js b/src/calculateRank.js
@@ -1,21 +1,3 @@
-// https://stackoverflow.com/a/5263759/10629172
-function normalcdf(mean, sigma, to) {
-  var z = (to - mean) / Math.sqrt(2 * sigma * sigma);
-  var t = 1 / (1 + 0.3275911 * Math.abs(z));
-  var a1 = 0.254829592;
-  var a2 = -0.284496736;
-  var a3 = 1.421413741;
-  var a4 = -1.453152027;
-  var a5 = 1.061405429;
-  var erf =
-    1 - ((((a5 * t + a4) * t + a3) * t + a2) * t + a1) * t * Math.exp(-z * z);
-  var sign = 1;
-  if (z < 0) {
-    sign = -1;
-  }
-  return (1 / 2) * (1 + sign * erf);
-}
-
 function calculateRank({
   totalRepos,
   totalCommits,
@@ -25,69 +7,32 @@ function calculateRank({
   issues,
   stargazers,
 }) {
-  const COMMITS_OFFSET = 1.65;
-  const CONTRIBS_OFFSET = 1.65;
-  const ISSUES_OFFSET = 1;
-  const STARS_OFFSET = 0.75;
-  const PRS_OFFSET = 0.5;
-  const FOLLOWERS_OFFSET = 0.45;
-  const REPO_OFFSET = 1;
-
-  const ALL_OFFSETS =
-    CONTRIBS_OFFSET +
-    ISSUES_OFFSET +
-    STARS_OFFSET +
-    PRS_OFFSET +
-    FOLLOWERS_OFFSET +
-    REPO_OFFSET;
+  const COMMITS = 30;
+  const CONTRIBS = 25;
+  const REPO = 20;
+  const ISSUES = 20;
+  const STARS = 15;
+  const PRS = 10;
+  const FOLLOWERS = 5;
 
-  const RANK_S_VALUE = 1;
-  const RANK_DOUBLE_A_VALUE = 25;
-  const RANK_A2_VALUE = 45;
-  const RANK_A3_VALUE = 60;
-  const RANK_B_VALUE = 100;
-
-  const TOTAL_VALUES =
-    RANK_S_VALUE + RANK_A2_VALUE + RANK_A3_VALUE + RANK_B_VALUE;
-
-  // prettier-ignore
   const score = (
-    totalCommits * COMMITS_OFFSET +
-    contributions * CONTRIBS_OFFSET +
-    issues * ISSUES_OFFSET +
-    stargazers * STARS_OFFSET +
-    prs * PRS_OFFSET +
-    followers * FOLLOWERS_OFFSET + 
-    totalRepos * REPO_OFFSET 
-  ) / 100;
-
-  const normalizedScore = normalcdf(score, TOTAL_VALUES, ALL_OFFSETS) * 100;
-
-  let level = "";
-
-  if (normalizedScore < RANK_S_VALUE) {
-    level = "S+";
-  }
-  if (
-    normalizedScore >= RANK_S_VALUE &&
-    normalizedScore < RANK_DOUBLE_A_VALUE
-  ) {
-    level = "S";
-  }
-  if (
-    normalizedScore >= RANK_DOUBLE_A_VALUE &&
-    normalizedScore < RANK_A2_VALUE
-  ) {
-    level = "A++";
+    totalCommits * COMMITS +
+    contributions * CONTRIBS +
+    issues * ISSUES +
+    stargazers * STARS +
+    prs * PRS +
+    followers * FOLLOWERS +
+    totalRepos * REPO
+  );
+
+  if (score < 100) {
+    let level = "0"
+    return {level, "score": score}
   }
-  if (normalizedScore >= RANK_A2_VALUE && normalizedScore < RANK_A3_VALUE) {
-    level = "A+";
-  }
-  if (normalizedScore >= RANK_A3_VALUE && normalizedScore < RANK_B_VALUE) {
-    level = "B+";
-  }
-
-  return { level, score: normalizedScore };
+  let c = - 5 - score
+  let discriminant = Math.sqrt(Math.pow(100, 2) - 4 * 5 * c)
+  let level = parseInt((discriminant - 100) / 10).toString()
+  return { level, "score": score};
 }
 
 module.exports = calculateRank;
diff --git a/src/cards/stats-card.js b/src/cards/stats-card.js
@@ -193,7 +193,7 @@ const renderStatsCard = (stats = {}, options = { hide: [] }) => {
 
   // the better user's score the the rank will be closer to zero so
   // subtracting 100 to get the progress in 100%
-  const progress = 100 - rank.score;
+  const progress = 100; // FIX LATER - rank.score;
   const cssStyles = getStyles({
     titleColor,
     textColor,