Better experiments management.

[wolnelektury.git] / src / experiments / middleware.py

diff --git a/src/experiments/middleware.py b/src/experiments/middleware.py
index 080aee2..73e93e4 100644 (file)
--- a/src/experiments/middleware.py
+++ b/src/experiments/middleware.py
@@ -1,38 +1,12 @@
-import hashlib
-from django.conf import settings
+from .experiments import experiments
 
 
 def experiments_middleware(get_response):
     def middleware(request):
         exps = {}
 
-        overrides = getattr(settings, 'EXPERIMENTS_OVERRIDES', {})
-        for exp in settings.EXPERIMENTS:
-            slug = exp['slug']
-            if slug in overrides:
-                exps[slug] = overrides[slug]
-                continue
-
-            cookie_value = request.COOKIES.get(f'EXPERIMENT_{slug}')
-            if cookie_value is not None:
-                for cohort in exp.get('cohorts', []):
-                    if cohort['value'] == cookie_value:
-                        exps[slug] = cookie_value
-                        break
-
-            if slug not in exps:
-                number = int(
-                    # TODO sth else?
-                    hashlib.md5(
-                        (slug + request.META['REMOTE_ADDR']).encode('utf-8')
-                    ).hexdigest(),
-                    16
-                ) % 10e6 / 10e6
-                for cohort in exp.get('cohorts', []):
-                    number -= cohort.get('size', 1)
-                    if number < 0:
-                        exps[slug] = cohort['value']
-                        break
+        for exp in experiments:
+            exps[exp.slug] = exp(request)
 
         request.EXPERIMENTS = exps
         response = get_response(request)