From ba856829b121ae1e7048ac58ffb9a24beed8d6ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ste=CC=81phane=20Nicolet?= <cassio@free.fr>
Date: Fri, 6 Oct 2023 14:14:39 +0200
Subject: [PATCH] Interpolate test colors between red and green

---
 server/fishtest/util.py | 51 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/server/fishtest/util.py b/server/fishtest/util.py
index dcd7f97a8..dc9d84b39 100644
--- a/server/fishtest/util.py
+++ b/server/fishtest/util.py
@@ -227,6 +227,53 @@ def format_bounds(elo_model, elo0, elo1):
     )
 
 
+def interpolate_color(c1, c2, t):
+    # blend two colors c1 and c2 in the format "#44EB44"
+    # t must be a real 0 <= t <= 1
+
+    c1 = c1.lstrip('#')
+    c2 = c2.lstrip('#')
+    rgb1 = tuple(int(c1[i:i+2], 16) for i in (0, 2, 4))
+    rgb2 = tuple(int(c2[i:i+2], 16) for i in (0, 2, 4))
+    r = int((1-t) * rgb1[0] + t * rgb2[0])
+    g = int((1-t) * rgb1[1] + t * rgb2[1])
+    b = int((1-t) * rgb1[2] + t * rgb2[2])
+    color = '#{:02x}{:02x}{:02x}'.format(r, g, b)
+
+    return color.upper()
+
+
+def color_run(run, WLD):
+    color = ""
+
+    if "sprt" in run["args"] :
+        sprt = run["args"]["sprt"]
+        llr  = float(sprt["llr"])
+        low  = float(sprt["lower_bound"])
+        up   = float(sprt["upper_bound"])
+        percent = 1.0 * (llr - low) / (up - low)
+        percent = max(0.0, min(1.0, percent))
+
+        # rejection color
+        # yellow (#FFFF00) or red (#FF6A6A)
+        if WLD[0] > WLD[1] :
+            color_low = "#FFFF00"
+        else :
+            color_low = "#FF6A6A"
+
+        # acceptation color 
+        # blue (#66CCFF) or green (#44EB44)
+        if (float(sprt["elo0"]) + float(sprt["elo1"])) < 0.0 :
+            color_up = "#66CCFF"
+        else :
+            color_up = "#44EB44"
+
+        # calculate interpolated color
+        color = interpolate_color(color_low, color_up, percent)
+
+    return color
+
+
 def format_results(run_results, run):
     result = {"style": "", "info": []}
 
@@ -285,6 +332,7 @@ def format_results(run_results, run):
             + ", ".join(str(run_results["pentanomial"][i]) for i in range(0, 5))
         )
 
+    # color the result
     if state == "rejected":
         if WLD[0] > WLD[1]:
             result["style"] = "yellow"
@@ -295,6 +343,9 @@ def format_results(run_results, run):
             result["style"] = "#66CCFF"
         else:
             result["style"] = "#44EB44"
+    else:
+        result["style"] = color_run(run, WLD)
+
     return result