06/02 Update account balance adjustment

app/routes/accounts.py

@@ -137,3 +137,59 @@ def delete(id):
     db.session.commit()
     flash(f'Account "{account.name}" removed.', 'info')
     return redirect(url_for('accounts.index'))
+
+
+@accounts_bp.route('/<int:id>/adjust', methods=['GET', 'POST'])
+@login_required
+def adjust_balance(id):
+    account = db.get_or_404(Account, id)
+    calc_balance(account.id)
+    db.session.refresh(account)
+    current_balance = float(account.balance)
+
+    if request.method == 'POST':
+        from app.models.transaction import Transaction
+        from app.models.category import Category
+        from wtforms import ValidationError
+
+        try:
+            new_balance = float(request.form.get('new_balance', '').replace(',', ''))
+        except (ValueError, AttributeError):
+            flash('Invalid amount entered.', 'danger')
+            return redirect(url_for('accounts.adjust_balance', id=id))
+
+        difference = round(new_balance - current_balance, 2)
+
+        if difference == 0:
+            flash('Balance is already at that amount — no adjustment needed.', 'info')
+            return redirect(url_for('accounts.index',
+                                    tab='credit' if account.account_type == 'credit_card' else 'bank'))
+
+        txn_type = 'income' if difference > 0 else 'expense'
+        amount = abs(difference)
+        notes = request.form.get('notes', '').strip() or 'Manual balance adjustment'
+
+        txn = Transaction(
+            account_id=account.id,
+            transaction_type=txn_type,
+            amount=amount,
+            description='Balance Adjustment',
+            date=date.today(),
+            notes=notes,
+        )
+        db.session.add(txn)
+        db.session.commit()
+        calc_balance(account.id)
+
+        flash(
+            f'Balance adjusted by '
+            f'{"+" if difference > 0 else ""}{difference:,.2f}. '
+            f'New balance: {new_balance:,.2f}.',
+            'success'
+        )
+        return redirect(url_for('accounts.index',
+                                tab='credit' if account.account_type == 'credit_card' else 'bank'))
+
+    return render_template('accounts/adjust.html',
+                           account=account,
+                           current_balance=current_balance)

app/templates/accounts/adjust.html

@@ -0,0 +1,107 @@
+{% extends "base.html" %}
+{% block title %}Adjust Balance — {{ account.name }}{% endblock %}
+{% block page_title %}Adjust Balance{% endblock %}
+
+{% block content %}
+<div class="row justify-content-center">
+<div class="col-12 col-md-7 col-lg-5">
+
+<div class="pcard mb-3" style="border-left: 4px solid {{ account.color }};">
+    <div class="d-flex align-items-center gap-2">
+        <div style="width:36px;height:36px;border-radius:9px;background:{{ account.color }}22;color:{{ account.color }};display:flex;align-items:center;justify-content:center;font-size:18px;">
+            <i class="bi {{ account.icon }}"></i>
+        </div>
+        <div>
+            <div style="font-weight:600;font-size:14px;">{{ account.name }}</div>
+            <div style="font-size:11px;color:var(--muted);">{{ account.account_type | replace('_',' ') | title }}</div>
+        </div>
+    </div>
+    <div class="mt-3 d-flex gap-3">
+        <div>
+            <div style="font-size:11px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em;">Current Balance</div>
+            <div class="mono {% if current_balance >= 0 %}text-income{% else %}text-expense{% endif %}" style="font-size:22px;font-weight:700;">
+                {{ current_balance | abs | currency }}{% if current_balance < 0 %} <span style="font-size:13px;font-weight:400;">(owed)</span>{% endif %}
+            </div>
+        </div>
+    </div>
+</div>
+
+<div class="pcard" style="border-top: 4px solid {{ account.color }};">
+    <p style="font-size:13px;color:var(--muted);">
+        Enter the correct balance. An adjustment transaction will be created for the difference to bring the account in line.
+    </p>
+    <form method="POST" novalidate id="adjustForm">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
+
+        <div class="mb-3">
+            <label class="form-label fw-medium" style="font-size:13px;">Correct Balance</label>
+            <div class="input-group">
+                <span class="input-group-text" style="font-size:13px;">{{ current_user.currency_symbol }}</span>
+                <input type="number" name="new_balance" id="newBalance" class="form-control"
+                       step="0.01" placeholder="0.00" autofocus
+                       style="font-size:15px;font-weight:600;">
+            </div>
+        </div>
+
+        <!-- Live difference preview -->
+        <div id="diffPreview" class="mb-3 p-3" style="border-radius:8px;background:#f8fafc;display:none;">
+            <div style="font-size:12px;color:var(--muted);margin-bottom:4px;">Adjustment that will be created</div>
+            <div id="diffText" style="font-size:14px;font-weight:600;"></div>
+        </div>
+
+        <div class="mb-4">
+            <label class="form-label fw-medium" style="font-size:13px;">Reason <span style="font-weight:400;color:var(--muted);">(optional)</span></label>
+            <input type="text" name="notes" class="form-control" style="font-size:13px;"
+                   placeholder="e.g. Bank reconciliation, opening balance">
+        </div>
+
+        <div class="d-flex gap-2">
+            <button type="submit" class="btn btn-primary" id="submitBtn" disabled>Apply Adjustment</button>
+            <a href="{{ url_for('accounts.index', tab='credit' if account.account_type == 'credit_card' else 'bank') }}"
+               class="btn btn-outline-secondary">Cancel</a>
+        </div>
+    </form>
+</div>
+
+</div>
+</div>
+{% endblock %}
+
+{% block extra_js %}
+<script>
+const currentBalance = {{ current_balance }};
+const symbol = '{{ current_user.currency_symbol }}';
+
+document.getElementById('newBalance').addEventListener('input', function () {
+    const val = parseFloat(this.value);
+    const preview = document.getElementById('diffPreview');
+    const diffText = document.getElementById('diffText');
+    const submitBtn = document.getElementById('submitBtn');
+
+    if (isNaN(val)) {
+        preview.style.display = 'none';
+        submitBtn.disabled = true;
+        return;
+    }
+
+    const diff = Math.round((val - currentBalance) * 100) / 100;
+
+    if (diff === 0) {
+        preview.style.background = '#f8fafc';
+        diffText.style.color = '#64748b';
+        diffText.textContent = 'No change — balance is already at this amount.';
+        submitBtn.disabled = true;
+    } else {
+        const isIncome = diff > 0;
+        preview.style.background = isIncome ? '#f0fdf4' : '#fef2f2';
+        diffText.style.color = isIncome ? '#10b981' : '#ef4444';
+        const sign = isIncome ? '+' : '-';
+        const absVal = Math.abs(diff).toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+        const type = isIncome ? 'Income (credit)' : 'Expense (debit)';
+        diffText.textContent = `${type}: ${sign}${symbol}${absVal}`;
+        submitBtn.disabled = false;
+    }
+    preview.style.display = 'block';
+});
+</script>
+{% endblock %}

app/templates/accounts/index.html

@@ -43,6 +43,7 @@
                     <button class="btn btn-sm" style="background:none;border:none;color:var(--muted);padding:2px 6px;" data-bs-toggle="dropdown"><i class="bi bi-three-dots"></i></button>
                     <ul class="dropdown-menu dropdown-menu-end" style="font-size:13px;">
                         <li><a class="dropdown-item" href="{{ url_for('accounts.edit', id=acct.id) }}"><i class="bi bi-pencil me-2"></i>Edit</a></li>
+                        <li><a class="dropdown-item" href="{{ url_for('accounts.adjust_balance', id=acct.id) }}"><i class="bi bi-sliders me-2"></i>Adjust Balance</a></li>
                         <li><hr class="dropdown-divider"></li>
                         <li>
                             <form method="POST" action="{{ url_for('accounts.delete', id=acct.id) }}" onsubmit="return confirm('Remove this account?')">