Improve landing page.

It's possible to select which transactions to show

src/allmende_payment_system/api/__init__.py

@@ -9,12 +9,25 @@ templates = get_jinja_renderer()
 
 
 @root_router.get("/")
-async def landing_page(request: Request, user: UserDep, session: SessionDep):
+async def landing_page(
+    request: Request, user: UserDep, session: SessionDep, account_id: int | None = None
+):
+    focused_account = None
     transactions = []
     for account in user.accounts:
+        if account_id is not None and account.id != account_id:
+            continue
+        if account_id is not None and account.id == account_id:
+            focused_account = account
         transactions += account.transactions
+
     transactions = sorted(transactions, key=lambda t: t.timestamp)
     return templates.TemplateResponse(
         "index.html.jinja",
-        context={"request": request, "user": user, "transactions": transactions},
+        context={
+            "request": request,
+            "user": user,
+            "transactions": transactions,
+            "focused_account": focused_account,
+        },
     )

src/allmende_payment_system/templates/index.html.jinja

@@ -8,16 +8,17 @@
             {% if user.accounts|length > 0 %}
                 {% for account in user.accounts %}
                 <div class="col-md-6 col-lg-4">
-                    <div class="card">
+                    <div class="card{% if focused_account and focused_account.id == account.id %} border-primary border-3 shadow-lg{% endif %}">
                         <div class="card-body">
                             <h5 class="card-title">{{ account.name }}</h5>
                             <p class="h3 mb-2 {% if account.balance < 0 %}text-danger{% else %}text-success{% endif %}">
-                                {{ '%.2f' | format(account.balance) }} €
+                                {{ account.balance | format_number }} €
                             </p>
+                            {% if not focused_account or (focused_account.id != account.id) %}
                             <div class="d-flex gap-2 mt-3">
-                                <a href="#" class="btn btn-sm btn-outline-primary">Transaktionen</a>
-                                <a href="#" class="btn btn-sm btn-success">Aufladen</a>
+                                <a href="/?account_id={{ account.id }}" class="btn btn-sm btn-outline-primary">Transaktionen ansehen</a>
                             </div>
+                            {% endif %}
                         </div>
                     </div>
                 </div>
@@ -35,8 +36,8 @@
     <!-- Latest Transactions Section -->
     <div class="transactions-section">
         <div class="d-flex justify-content-between align-items-center mb-3">
-            <h2 class="h3 mb-0">Letzte Buchungen</h2>
-            <a href="#" class="btn btn-outline-primary btn-sm">Alle ansehen</a>
+            <h2 class="h3 mb-0">Letzte Buchungen{% if focused_account %} auf Konto "{{ focused_account.name }}"{% endif %}</h2>
+            {% if focused_account %}<a href="/" class="btn btn-primary btn-sm">Alle Konten ansehen</a>{% endif %}
         </div>
 
         <div class="card">
@@ -57,7 +58,7 @@
                                             </div>
                                             <div class="text-end ms-3">
                                                 <span class="fs-5 fw-bold {% if transaction.total_amount < 0 %}text-danger{% else %}text-success{% endif %}">
-                                                    {{ '%+.2f' | format(transaction.total_amount | default(0)) }} €
+                                                    {{ transaction.total_amount | format_number }} €
                                                 </span>
                                                 {% if transaction.quantity %}
                                                 <div class="small text-muted">{{ transaction.quantity }} €</div>