From e46c74d7b92bec41108db620db8a0516a61c4d63 Mon Sep 17 00:00:00 2001
From: Eduard Urbach <e.urbach@gmail.com>
Date: Thu, 22 Mar 2018 03:44:18 +0100
Subject: [PATCH] Improved rating system

---
 jobs/anime-ratings/anime-ratings.go | 26 +++++++++++++++++++++++++-
 jobs/mal-download/files/.gitignore  |  3 ---
 mixins/Rating.pixy                  |  6 +++---
 pages/anime/anime.pixy              | 14 +++++++-------
 4 files changed, 35 insertions(+), 14 deletions(-)
 delete mode 100644 jobs/mal-download/files/.gitignore

diff --git a/jobs/anime-ratings/anime-ratings.go b/jobs/anime-ratings/anime-ratings.go
index 875ed50a..ac4eee5b 100644
--- a/jobs/anime-ratings/anime-ratings.go
+++ b/jobs/anime-ratings/anime-ratings.go
@@ -48,6 +48,30 @@ func main() {
 			}
 		}
 
+		// Save number of people who rated on this
+		finalRating[animeID].Count.Overall = len(overall)
+		finalRating[animeID].Count.Story = len(story)
+		finalRating[animeID].Count.Visuals = len(visuals)
+		finalRating[animeID].Count.Soundtrack = len(soundtrack)
+
+		// Dampen the rating if number of users is too low
+		if len(overall) < arn.RatingCountThreshold {
+			overall = append(overall, arn.AverageRating)
+		}
+
+		if len(story) < arn.RatingCountThreshold {
+			story = append(story, arn.AverageRating)
+		}
+
+		if len(visuals) < arn.RatingCountThreshold {
+			visuals = append(visuals, arn.AverageRating)
+		}
+
+		if len(soundtrack) < arn.RatingCountThreshold {
+			soundtrack = append(soundtrack, arn.AverageRating)
+		}
+
+		// Average rating
 		finalRating[animeID].Overall = average(overall)
 		finalRating[animeID].Story = average(story)
 		finalRating[animeID].Visuals = average(visuals)
@@ -75,7 +99,7 @@ func main() {
 
 func average(floatSlice []float64) float64 {
 	if len(floatSlice) == 0 {
-		return arn.DefaultAverageRating
+		return 0
 	}
 
 	var sum float64
diff --git a/jobs/mal-download/files/.gitignore b/jobs/mal-download/files/.gitignore
deleted file mode 100644
index 34211e27..00000000
--- a/jobs/mal-download/files/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-*
-!*/
-!.gitignore
diff --git a/mixins/Rating.pixy b/mixins/Rating.pixy
index 775f6a82..4607f535 100644
--- a/mixins/Rating.pixy
+++ b/mixins/Rating.pixy
@@ -1,5 +1,5 @@
-component Rating(value float64, user *arn.User)
+component Rating(value float64, userCount int, user *arn.User)
 	if user == nil
-		.anime-rating= fmt.Sprintf("%.1f", value)
+		.anime-rating(title="Rated by " + arn.Plural(userCount, "user"))= fmt.Sprintf("%.1f", value)
 	else
-		.anime-rating= fmt.Sprintf("%." + strconv.Itoa(user.Settings().Format.RatingsPrecision) + "f", value)
\ No newline at end of file
+		.anime-rating(title="Rated by " + arn.Plural(userCount, "user"))= fmt.Sprintf("%." + strconv.Itoa(user.Settings().Format.RatingsPrecision) + "f", value)
\ No newline at end of file
diff --git a/pages/anime/anime.pixy b/pages/anime/anime.pixy
index 822935ce..50597592 100644
--- a/pages/anime/anime.pixy
+++ b/pages/anime/anime.pixy
@@ -67,25 +67,25 @@ component AnimeRatings(anime *arn.Anime, user *arn.User)
 					else
 						span Overall:
 				td.anime-info-value
-					Rating(anime.Rating.Overall, user)
+					Rating(anime.Rating.Overall, anime.Rating.Count.Overall, user)
 
-			if anime.Rating.Story > 0
+			if anime.Rating.Count.Story > 0
 				tr.mountable(data-mountable-type="info")
 					td.anime-info-key Story:
 					td.anime-info-value
-						Rating(anime.Rating.Story, user)
+						Rating(anime.Rating.Story, anime.Rating.Count.Story, user)
 
-			if anime.Rating.Visuals > 0
+			if anime.Rating.Count.Visuals > 0
 				tr.mountable(data-mountable-type="info")
 					td.anime-info-key Visuals:
 					td.anime-info-value
-						Rating(anime.Rating.Visuals, user)
+						Rating(anime.Rating.Visuals, anime.Rating.Count.Visuals, user)
 
-			if anime.Rating.Soundtrack > 0
+			if anime.Rating.Count.Soundtrack > 0
 				tr.mountable(data-mountable-type="info")
 					td.anime-info-key Soundtrack:
 					td.anime-info-value
-						Rating(anime.Rating.Soundtrack, user)
+						Rating(anime.Rating.Soundtrack, anime.Rating.Count.Soundtrack, user)
 
 component AnimePopularity(anime *arn.Anime)
 	if anime.Popularity.Total() > 0