From 0e93f520404c090a50de9bf901e14e2c4b1b07cc Mon Sep 17 00:00:00 2001
From: Flo Ha <flo.ha@posteo.net>
Date: Sun, 17 Jul 2022 16:43:36 +0200
Subject: [PATCH] dynamically generate drinks table and add it to the finance
 context

---
 gaehsnitz/utils.py | 84 ++++++++++++++++++++++++++++++++++++++++++++++
 gaehsnitz/views.py |  2 ++
 2 files changed, 86 insertions(+)
 create mode 100644 gaehsnitz/utils.py

diff --git a/gaehsnitz/utils.py b/gaehsnitz/utils.py
new file mode 100644
index 0000000..e2d27e0
--- /dev/null
+++ b/gaehsnitz/utils.py
@@ -0,0 +1,84 @@
+from typing import List, Union
+
+_crates = "crates"
+_bottles_per_crate = "bottles_per_crate"
+_bottle_size = "bottle_size"
+_price_per_crate = "price_per_crate"
+_deposit_per_crate = "deposit_per_crate"
+
+drinks = {
+    "Sterni": {
+        _crates: 25, _bottles_per_crate: 20, _bottle_size: 0.5,
+        _price_per_crate: 8.90, _deposit_per_crate: 3.10,
+    },
+    "Uri": {
+        _crates: 15, _bottles_per_crate: 20, _bottle_size: 0.5,
+        _price_per_crate: 13.50, _deposit_per_crate: 3.10,
+    },
+    "Wasser": {
+        _crates: 12, _bottles_per_crate: 12, _bottle_size: 0.7,
+        _price_per_crate: 4.50, _deposit_per_crate: 3.30,
+    },
+    "Radler": {
+        _crates: 8, _bottles_per_crate: 20, _bottle_size: 0.5,
+        _price_per_crate: 13.00, _deposit_per_crate: 3.10,
+    },
+    "Mate": {
+        _crates: 5, _bottles_per_crate: 20, _bottle_size: 0.5,
+        _price_per_crate: 17.00, _deposit_per_crate: 4.50,
+    },
+    "Vita-Cola": {
+        _crates: 2, _bottles_per_crate: 12, _bottle_size: 1,
+        _price_per_crate: 10.00, _deposit_per_crate: 3.30,
+    },
+    "Pepsi": {
+        _crates: 2, _bottles_per_crate: 12, _bottle_size: 1,
+        _price_per_crate: 12.00, _deposit_per_crate: 3.30,
+    },
+}
+
+
+def generate_drinks_table() -> List[List[Union[str, int, float]]]:
+    table_data = [
+        [
+            "Getränk", "Kästen",
+            "Fl. / K.", "Fl. ges.",
+            "Menge / Fl.", "Menge / K.", "Menge ges.",
+            "Preis / Fl.", "Preis / K.", "Preis ges.",
+            "Pfand / K.", "Pfand ges.",
+        ]
+    ]
+
+    total_crates = total_bottles = total_amount = total_price = total_deposit = 0
+
+    for name, details in drinks.items():
+        bottles = details[_crates] * details[_bottles_per_crate]
+        amount_per_crate = details[_bottle_size] * details[_bottles_per_crate]
+        amount = amount_per_crate * details[_crates]
+        price_per_bottle = details[_price_per_crate] / details[_bottles_per_crate]
+        price = details[_price_per_crate] * details[_crates]
+        deposit = details[_deposit_per_crate] * details[_crates]
+
+        table_data.append([
+            name, str(details[_crates]),
+            str(details[_bottles_per_crate]), str(bottles),
+            f"{details[_bottle_size]:.1f}l", f"{amount_per_crate:.1f}l", f"{amount:.1f}l",
+            f"{price_per_bottle:.2f}€", f"{details[_price_per_crate]:.2f}€", f"{price:.2f}€",
+            f"{details[_deposit_per_crate]:.2f}€", f"{deposit:.2f}€",
+        ])
+
+        total_crates += details[_crates]
+        total_bottles += bottles
+        total_amount += amount
+        total_price += price
+        total_deposit += deposit
+
+    table_data.append([
+        "Summe", str(total_crates),
+        "", str(total_bottles),
+        "", "", f"{total_amount:.1f}l",
+        "", "", f"{total_price:.2f}€",
+        "", f"{total_deposit:.2f}€",
+    ])
+
+    return table_data
diff --git a/gaehsnitz/views.py b/gaehsnitz/views.py
index 2952562..4f630cc 100644
--- a/gaehsnitz/views.py
+++ b/gaehsnitz/views.py
@@ -5,6 +5,7 @@ from django.utils import timezone
 from django.views.generic import TemplateView
 
 from gaehsnitz.models import Payment
+from gaehsnitz.utils import generate_drinks_table
 
 festival_start_date, festival_end_date = date(2022, 8, 25), date(2022, 8, 28)
 
@@ -56,6 +57,7 @@ class FinanceView(GaehsnitzTemplateView):
             "balance_dict": dict(balance_dict),
             "overall_sum": overall_sum,
             "detailed_payments": dict(detailed_payments),
+            "drinks_table": generate_drinks_table(),
         })
         return context