assets/css/base.css

@@ -86,8 +86,9 @@ h5 {
 }
 
 .currency-col {
-  width: 175px;
+  width: 200px;
   white-space: nowrap;
+  text-align: right;
 }
 
 .table-transparency td:not(:first-child) {

helpers/finances.py

@@ -0,0 +1,193 @@
+from decimal import Decimal
+
+
+def get_transparency_data(data, year=None, month=None):
+    if year is None:
+        year = max(data.keys())
+
+    if month is None:
+        month = max(data[year].keys())
+
+    assert year in data, f"Year {year} not found in data"
+    assert month in data[year], f"Month {month}-{year} not found in data"
+
+    # Initialize balances
+    balances = {}
+    incomes = {}
+    expenses = {}
+
+    start_balance = {}
+    end_balance = {}
+
+    for y in sorted(data.keys()):
+        if int(y) > int(year):
+            break
+
+        for m in sorted(data[y].keys()):
+            if int(y) == int(year) and int(m) > int(month):
+                break
+
+            # If the month is the one we are interested in, capture the start balance
+            if int(y) == int(year) and int(m) == int(month):
+                start_balance = {k: Decimal(v) for k, v in balances.items()}
+
+            for category in data[y][m]:
+                for currency, amount in data[y][m][category].items():
+                    if currency not in balances:
+                        balances[currency] = Decimal(0)
+                    balances[currency] += Decimal(str(amount))
+
+                    # Track incomes and expenses
+                    if int(y) == int(year) and int(m) == int(month):
+                        if Decimal(str(amount)) > 0:
+                            if category not in incomes:
+                                incomes[category] = {}
+                            if currency not in incomes[category]:
+                                incomes[category][currency] = Decimal(0)
+                            incomes[category][currency] += Decimal(str(amount))
+                        else:
+                            if category not in expenses:
+                                expenses[category] = {}
+                            if currency not in expenses[category]:
+                                expenses[category][currency] = Decimal(0)
+                            expenses[category][currency] += Decimal(str(amount))
+
+            # If the month is the one we are interested in, capture the end balance
+            if int(y) == int(year) and int(m) == int(month):
+                end_balance = {k: Decimal(v) for k, v in balances.items()}
+
+    # Calculate accumulated sums of incomes and expenses
+    accumulated_incomes = {
+        currency: sum(incomes[cat].get(currency, Decimal(0)) for cat in incomes)
+        for currency in balances
+    }
+    accumulated_expenses = {
+        currency: sum(expenses[cat].get(currency, Decimal(0)) for cat in expenses)
+        for currency in balances
+    }
+
+    return {
+        "start_balance": start_balance,
+        "end_balance": end_balance,
+        "incomes": incomes,
+        "expenses": expenses,
+        "accumulated_incomes": accumulated_incomes,
+        "accumulated_expenses": accumulated_expenses,
+    }
+
+
+def generate_transparency_table(result, currencies=None):
+    def extract_currencies(data):
+        return ["EUR"] + (
+            list(
+                set(
+                    list(data["start_balance"].keys())
+                    + list(data["end_balance"].keys())
+                    + list(data["accumulated_incomes"].keys())
+                    + list(data["accumulated_expenses"].keys())
+                )
+                - {"EUR"}
+            )
+        )
+
+    def format_currency(value, currency):
+        if currency == "EUR":
+            return f"€{value:,.2f}"
+        elif currency in ["BTC", "ETH", "XMR"]:
+            return f"{value:,.9f} {currency}"
+        else:
+            return f"{value} {currency}"
+
+    def format_value(value, currency):
+        if value == 0:
+            return f"{format_currency(value, currency)}"
+        elif value > 0:
+            return f"+ {format_currency(value, currency)}"
+        else:
+            return f"- {format_currency(abs(value), currency)}"
+
+    html = """
+    <table class="table table-bordered table-transparency">
+        <thead class="table-light">
+            <tr>
+                <th scope="col">Category</th>
+    """
+
+    if currencies is None:
+        currencies = extract_currencies(result)
+
+    # Add currency headers
+    for currency in currencies:
+        if currency == "EUR":
+            html += '<th class="currency-col" scope="col">Euros (€)</th>'
+        elif currency == "BTC":
+            html += '<th class="currency-col" scope="col">Bitcoin (BTC)</th>'
+        elif currency == "ETH":
+            html += '<th class="currency-col" scope="col">Ethereum (ETH)</th>'
+        elif currency == "XMR":
+            html += '<th class="currency-col" scope="col">Monero (XMR)</th>'
+        else:
+            html += f'<th class="currency-col" scope="col">{currency}</th>'
+
+    html += """
+            </tr>
+        </thead>
+        <tbody>
+    """
+
+    # Add start balance row
+    html += "<tr><td>Account Balance (start of month)</td>"
+    for currency in currencies:
+        value = result["start_balance"].get(currency, Decimal(0))
+        html += f"<td>{format_value(value, currency)}</td>"
+    html += "</tr>"
+
+    # Add income rows
+    for category, transactions in result["incomes"].items():
+        html += f"<tr><td>{category}</td>"
+        for currency in currencies:
+            value = transactions.get(currency, "")
+            if value != "":
+                html += f"<td>{format_value(value, currency)}</td>"
+            else:
+                html += "<td></td>"
+        html += "</tr>"
+
+    # Add expense rows
+    for category, transactions in result["expenses"].items():
+        html += f"<tr><td>{category}</td>"
+        for currency in currencies:
+            value = transactions.get(currency, "")
+            if value != "":
+                html += f"<td>{format_value(value, currency)}</td>"
+            else:
+                html += "<td></td>"
+        html += "</tr>"
+
+    # Add total income row
+    html += '<tr class="table-secondary"><td><b>Total Income</b></td>'
+    for currency in currencies:
+        value = result["accumulated_incomes"].get(currency, Decimal(0))
+        html += f"<td><b>{format_value(value, currency)}</b></td>"
+    html += "</tr>"
+
+    # Add total expenses row
+    html += '<tr class="table-secondary"><td><b>Total Expenses</b></td>'
+    for currency in currencies:
+        value = result["accumulated_expenses"].get(currency, Decimal(0))
+        html += f"<td><b>{format_value(value, currency)}</b></td>"
+    html += "</tr>"
+
+    # Add end balance row
+    html += '<tr class="table-secondary"><td><b>Account Balance (end of month)</b></td>'
+    for currency in currencies:
+        value = result["end_balance"].get(currency, Decimal(0))
+        html += f"<td><b>{format_value(value, currency)}</b></td>"
+    html += "</tr>"
+
+    html += """
+        </tbody>
+    </table>
+    """
+
+    return html

main.py

@@ -7,6 +7,8 @@ import os
 
 from argparse import ArgumentParser
 
+from helpers.finances import generate_transparency_table, get_transparency_data
+
 app = Flask(__name__)
 
 
@@ -28,9 +30,27 @@ def catch_all(path):
         if app.development_mode:
             warning = render_template("prod-warning.html")
 
-        return render_template(
-            f"{path}.html", services=services, warning=warning
-        )
+        kwargs = {
+            "services": services,
+            "warning": warning,
+        }
+
+        if path == "membership":
+            finances = json.loads(
+                (pathlib.Path(__file__).parent / "finances.json").read_text()
+            )
+
+            finances_table = generate_transparency_table(
+                get_transparency_data(finances)
+            )
+
+            kwargs.update(
+                {
+                    "finances": finances_table,
+                }
+            )
+
+        return render_template(f"{path}.html", **kwargs)
     except TemplateNotFound:
         return "404 Not Found", 404
 

templates/membership.html

@@ -84,89 +84,7 @@
         income and expenses for the last month.
       </p>
       <div class="table-responsive">
-        <table class="table table-bordered table-transparency">
-          <thead class="table-light">
-            <tr>
-              <th scope="col">Category</th>
-              <th class="currency-col" scope="col">Euros (€)</th>
-              <th class="currency-col" scope="col">Bitcoin (BTC)</th>
-              <th class="currency-col" scope="col">Ethereum (ETH)</th>
-              <th class="currency-col" scope="col">Monero (XMR)</th>
-            </tr>
-          </thead>
-          <tbody>
-            <tr>
-              <td>Account Balance (start of month)</td>
-              <td>+ €112.33</td>
-              <td>0 BTC</td>
-              <td>0 ETH</td>
-              <td>0 XMR</td>
-            </tr>
-            <tr>
-              <td>Membership Fees</td>
-              <td>+ €390.00</td>
-              <td></td>
-              <td></td>
-              <td></td>
-            </tr>
-            <tr>
-              <td>Donations</td>
-              <td></td>
-              <td>+ 0.00043400 BTC</td>
-              <td></td>
-              <td>+ 0.447661805527 XMR</td>
-            </tr>
-            <tr>
-              <td>Server Costs</td>
-              <td>- €430.04</td>
-              <td></td>
-              <td></td>
-              <td></td>
-            </tr>
-            <tr>
-              <td>Domain Names</td>
-              <td></td>
-              <td></td>
-              <td></td>
-              <td></td>
-            </tr>
-            <tr>
-              <td>Operating Expenses</td>
-              <td></td>
-              <td></td>
-              <td></td>
-              <td></td>
-            </tr>
-            <tr>
-              <td>Conversions</td>
-              <td></td>
-              <td></td>
-              <td></td>
-              <td></td>
-            </tr>
-            <tr class="table-secondary">
-              <td><b>Total Income</b></td>
-              <td><b>+ €390.00</b></td>
-              <td><b>+ 0.00043400 BTC</b></td>
-              <td><b>0 ETH</b></td>
-              <td><b>+ 0.447661805527 XMR</b></td>
-            </tr>
-            <tr class="table-secondary">
-              <td><b>Total Expenses</b></td>
-              <td><b>- €430.04</b></td>
-              <td></td>
-              <td></td>
-              <td></td>
-            </tr>
-            <tr class="table-secondary">
-              <td><b>Account Balance (end of month)</b></td>
-              <td><b>+ €72.29</b></td>
-              <td><b>+ 0.00043400 BTC</b></td>
-              <td><b>0 ETH</b></td>
-              <td><b>+ 0.447661805527 XMR</b></td>
-            </tr>
-          </tbody>
-        </table>
+        {{ finances|safe }}
       </div>
     </div>
   </div>