From 162a37c567f8f2839a4968a784d4583b2e9d5e49 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Tue, 9 Jun 2020 21:28:23 -0700
Subject: [PATCH] Add scoring once all players have submitted

And a not-quite-yet-fully-functional /reset, (or maybe it works but
the client is broken). This was a 90-minute flurry of coding, so I
haven't looked closely yet at where the bugs are.
---
 empathy.js | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 60 insertions(+), 1 deletion(-)

diff --git a/empathy.js b/empathy.js
index 9bc5740..3ec4a7b 100644
--- a/empathy.js
+++ b/empathy.js
@@ -13,6 +13,14 @@ class Empathy extends Game {
     this.next_prompt_id = 1;
   }
 
+  reset() {
+    this.state.active_prompt = null;
+    this.state.players_answered = 0;
+    this.answers = [];
+
+    this.broadcast_event_object('game-state', this.state);
+  }
+
   add_prompt(items, prompt_string) {
     const prompt = new Prompt(this.next_prompt_id, items, prompt_string);
     this.next_prompt_id++;
@@ -77,11 +85,54 @@ class Empathy extends Game {
 
     /* And notify players how many players have answered. */
     this.state.players_answered++;
-
     this.broadcast_event_object('answered', this.state.players_answered);
 
     return { valid: true };
   }
+
+  compute_scores() {
+    const word_submitters = {};
+    const scores = [];
+
+    for (let a of this.answers) {
+      for (let word of a.answers) {
+        if (word_submitters[word])
+          word_submitters[word].push(a.player.name);
+        else
+          word_submitters[word] = [a.player.name];
+      }
+    }
+
+    for (let a of this.answers) {
+      let score = 0;
+      for (let word of a.answers) {
+        score += word_submitters[word].length;
+      }
+      scores.push({
+        player: a.player.name,
+        score: score
+      });
+    }
+
+    scores.sort((a,b) => {
+      return b.score - a.score;
+    });
+
+    const word_submitters_arr = [];
+    for (let word in word_submitters)
+      word_submitters_arr.push({word: word, players: word_submitters[word]});
+
+    word_submitters_arr.sort((a,b) => {
+      return b.players.length - a.players.length;
+    });
+
+    this.state.scores = {
+      scores: scores,
+      words: word_submitters_arr
+    };
+
+    this.broadcast_event_object('scores', this.state.scores);
+  }
 }
 
 Empathy.router = express.Router();
@@ -137,6 +188,14 @@ router.post('/answer/:prompt_id([0-9]+)', (request, response) => {
                                      request.session.id,
                                      request.body.answers);
   response.json(result);
+
+  if (game.answers.length >= game.players.length)
+    game.compute_scores();
+});
+
+router.post('/reset', (request, response) => {
+  const game = request.game;
+  game.reset();
 });
 
 Empathy.meta = {
-- 
2.43.0