From 0cbcb4611dc88ba636103e7b04ea4e9524644a62 Mon Sep 17 00:00:00 2001
From: Flo Ha <flo.ha@posteo.net>
Date: Sun, 4 Sep 2022 13:38:15 +0200
Subject: [PATCH] add different commands for evaluation

---
 gaehsnitz/management/commands/drink_stats.py  | 32 +++++++++++++
 .../management/commands/total_balance.py      | 32 +++++++++++++
 gaehsnitz/management/commands/user_stats.py   | 46 +++++++++++++++++++
 3 files changed, 110 insertions(+)
 create mode 100644 gaehsnitz/management/commands/drink_stats.py
 create mode 100644 gaehsnitz/management/commands/total_balance.py
 create mode 100644 gaehsnitz/management/commands/user_stats.py

diff --git a/gaehsnitz/management/commands/drink_stats.py b/gaehsnitz/management/commands/drink_stats.py
new file mode 100644
index 0000000..e88196b
--- /dev/null
+++ b/gaehsnitz/management/commands/drink_stats.py
@@ -0,0 +1,32 @@
+from django.core.management import BaseCommand
+from django.db.models import Sum
+
+from gaehsnitz.models import Drink
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        for drink in Drink.objects.all():
+            print(f"--- {drink.name} ---")
+
+            print(f"Kästen (laut Abrechnung):")
+            ordered = drink.crates_ordered
+            print(f"  bestellt:    {ordered}")
+            purchased = drink.crates_purchased
+            print(f"  gekauft:     {purchased}")
+            full_ret = ordered - purchased
+            print(f"  voll zurück: {full_ret}")
+            empty_ret = drink.crates_returned
+            print(f"  leer zurück: {empty_ret}")
+            remaining = purchased - empty_ret
+            print(f"  übrig:       {remaining}")
+
+            print("Flaschen (laut Strichliste):")
+            bought = drink.bottles_total
+            print(f"  gekauft:   {bought}")
+            consumed = drink.consumption_list.aggregate(sum=Sum("amount"))["sum"]
+            print(f"  getrunken: {consumed}")
+            remaining = bought - consumed
+            print(f"  übrig:     {remaining}")
+            purchase_value = remaining * drink.purchase_price_per_bottle
+            print(f"  Wert:      {purchase_value:.2f} €")
diff --git a/gaehsnitz/management/commands/total_balance.py b/gaehsnitz/management/commands/total_balance.py
new file mode 100644
index 0000000..97a973d
--- /dev/null
+++ b/gaehsnitz/management/commands/total_balance.py
@@ -0,0 +1,32 @@
+from django.contrib.auth import get_user_model
+from django.core.management import BaseCommand
+from django.db.models import Sum
+
+from gaehsnitz.models import Payment, Donation
+
+User = get_user_model()
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        all_donations_sum = Donation.objects.all().aggregate(sum=Sum("amount"))["sum"]
+        print(f"Alle Spenden/Zahlungen: {all_donations_sum:.2f} €")
+        all_payments_sum = Payment.objects.all().aggregate(sum=Sum("amount"))["sum"]
+        print(f"Alle Ausgaben: {all_payments_sum:.2f} €")
+        balance = all_donations_sum - all_payments_sum
+        print("-------------------------")
+        print(f"Bilanz: {balance:.2f} €")
+        print()
+
+        print("Leute mit Schulden:")
+        awaited_sum = 0
+        for user in User.objects.all().order_by("username"):
+            if (value := user.balance) < 0:
+                print(f"{user}: {-value:.2f} €")
+                awaited_sum -= value
+        print("-------------------------")
+        print(f"gesamt: {awaited_sum:.2f} €")
+        balance_after_payments = balance + awaited_sum
+        print("-------------------------")
+        print(f"Bilanz danach: {balance_after_payments:.2f} €")
+        print()
diff --git a/gaehsnitz/management/commands/user_stats.py b/gaehsnitz/management/commands/user_stats.py
new file mode 100644
index 0000000..8f93d62
--- /dev/null
+++ b/gaehsnitz/management/commands/user_stats.py
@@ -0,0 +1,46 @@
+from django.contrib.auth import get_user_model
+from django.core.management import BaseCommand
+from django.db.models import Sum
+
+from gaehsnitz.models import Drink
+
+User = get_user_model()
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        id_to_name = {d.id: d.name for d in Drink.objects.all()}
+        for user in User.objects.all().order_by("username"):
+            print(f">>> {user.username.capitalize()}")
+            to_pay = user.consumed_drinks_price
+            if to_pay != 0:
+                paid_consumption = user.consumption_list.filter(for_free=False)
+                drink_list = []
+                for drink_dict in paid_consumption.values("drink_id").annotate(amount=Sum("amount")):
+                    name = id_to_name[drink_dict["drink_id"]]
+                    amount = drink_dict["amount"]
+                    drink_list.append(f"{amount}x {name}")
+                drink_list_str = ", ".join(drink_list)
+                print(f"zu zahlen: {to_pay:.2f} € ({drink_list_str})")
+
+            donated = user.donations_made
+            if donated != 0:
+                don_list = [f"{don.date:%d.%m.} {don.amount:.2f} €" for don in user.donations.order_by("date")]
+                don_list_str = ", ".join(don_list)
+                print(f"gespendet: {donated:.2f} € ({don_list_str})")
+
+            paid = user.other_payments_made
+            if paid != 0:
+                pay_list = [f"{pay.purpose} {pay.amount:.2f} €" for pay in user.payments.order_by("date")]
+                pay_list_str = ", ".join(pay_list)
+                print(f"bezahlt: {paid:.2f} € ({pay_list_str})")
+
+            paid_back = user.paybacks_received
+            if paid_back != 0:
+                pb_list = [f"{pb.date:%d.%m.} {pb.amount:.2f} €" for pb in user.paybacks.order_by("date")]
+                pb_list_str = ", ".join(pb_list)
+                print(f"zurückbekommen: {paid_back:.2f} € ({pb_list_str})")
+
+            balance = donated + paid - to_pay - paid_back
+            print(f"==> STAND: {balance:.2f} €")
+            print()