From 986fc71f200fb23eca60449526f01d1659a0c59f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Poulain?= <fpoulain@metrodore.fr>
Date: Thu, 20 Jun 2024 21:53:36 +0200
Subject: [PATCH] =?UTF-8?q?feat:=20ajoute=20la=20consommation=20hedbo=20pa?=
 =?UTF-8?q?ss=C3=A9e=20des=20fournitures?=
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---
 fournée/core/admin.py  | 13 ++++++++++++-
 fournée/core/models.py | 25 +++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/fournée/core/admin.py b/fournée/core/admin.py
index a41cb4e..2149ce2 100644
--- a/fournée/core/admin.py
+++ b/fournée/core/admin.py
@@ -38,7 +38,14 @@ class DocumentInline(admin.TabularInline):
 
 
 class FournitureAdmin(admin.ModelAdmin):
-    list_display = ["nom", "ordre", "couleur", "conditionnement", "emballage"]
+    list_display = [
+            "nom",
+            "ordre",
+            "couleur",
+            "conditionnement",
+            "emballage",
+            "consommation",
+    ]
     list_editable = ["ordre", "couleur", "conditionnement", "emballage"]
     inlines = [
         DocumentInline,
@@ -46,6 +53,10 @@ class FournitureAdmin(admin.ModelAdmin):
     actions = None
     save_as = True
 
+    @admin.display
+    def consommation(self, obj):
+        return obj.consommation()
+
 
 admin_site.register(models.Fourniture, FournitureAdmin)
 
diff --git a/fournée/core/models.py b/fournée/core/models.py
index 78d3a18..189cb0a 100644
--- a/fournée/core/models.py
+++ b/fournée/core/models.py
@@ -1,3 +1,4 @@
+import datetime
 from uuid import uuid4
 
 from django.db import models
@@ -61,6 +62,30 @@ class Fourniture(models.Model):
     def __str__(self):
         return f"{self.nom}"
 
+    def consommation(self):
+        """Renvois la consommation de la semaine passée"""
+        today = datetime.date.today()
+        sevendays = datetime.timedelta(days=7)
+        fournées = Fournée.objects.filter(date__gte=today-sevendays)
+        coulées_id = fournées.values('coulée')
+        quantités_coulées = [
+                q * pi / pb
+                for pi, pb, q in Ingrédient.objects.filter(
+                    recette__coulée__in=coulées_id, fourniture=self
+                ).values_list(
+                    'recette__coulée__quantité',
+                    'recette__poids_de_base',
+                    'quantité',
+                )]
+        quantité = clean(sum(quantités_coulées)) if quantités_coulées else 0
+        r = f"{quantité} kg"
+        if quantité and self.conditionnement:
+            r += (
+                f" soit {clean(quantité/self.conditionnement)} "
+                + f"{self.emballage}"
+            )
+        return r
+
 
 class Ingrédient(models.Model):
     class Meta: