{% extends 'base.html' %}

{% block content %}
<div class="row justify-content-center">
    <div class="col-md-8">
        <div class="card">
            <div class="card-header">Simulación para: <strong>{{ casa.nombre }}</strong></div>
            <div class="card-body">
                <div class="alert alert-secondary mb-4">
                    <div class="row">
                        <div class="col-md-6"><strong>Ubicación:</strong> {{ casa.ciudad.nombre_ciudad }}, {{ casa.ciudad.provincia }}</div>
                        <div class="col-md-6"><strong>Área Disponible:</strong> {{ casa.area_techo }} m²</div>
                    </div>
                </div>

                <form action="{{ url_for('main.calculate') }}" method="POST">
                    <input type="hidden" name="id_casa" value="{{ casa.id_casa }}">
                    
                    <div class="mb-3">
                        <label for="id_panel" class="form-label">Modelo de Panel</label>
                        <select name="id_panel" class="form-select" id="panelSelect" required onchange="updateMaxPanels()">
                            {% for panel in paneles %}
                            <option value="{{ panel.id_panel }}" data-area="{{ panel.area_m2 }}">
                                {{ panel.marca }} {{ panel.modelo }} ({{ panel.eficiencia_r * 100 }}% Eficiencia, {{ panel.area_m2 }} m²)
                            </option>
                            {% endfor %}
                        </select>
                    </div>
                    <div class="mb-3">
                        <label for="cantidad" class="form-label">Cantidad de Paneles</label>
                        <input type="number" name="cantidad" id="cantidadInput" class="form-control" required min="1">
                        <div id="maxPanelsHelp" class="form-text text-muted"></div>
                    </div>
                    <div class="mb-3">
                        <label for="precio_kwh" class="form-label">Precio del kWh ($)</label>
                        <input type="number" step="0.01" name="precio_kwh" class="form-control" value="0.15" required>
                    </div>
                    <button type="submit" class="btn btn-success w-100">Calcular</button>
                    <a href="{{ url_for('main.casas') }}" class="btn btn-link w-100 mt-2">Volver a Mis Casas</a>
                </form>
            </div>
        </div>
    </div>
</div>

<script>
    function updateMaxPanels() {
        const houseArea = {{ casa.area_techo }};
        const select = document.getElementById('panelSelect');
        const selectedOption = select.options[select.selectedIndex];
        const panelArea = parseFloat(selectedOption.getAttribute('data-area'));
        
        const maxPanels = Math.floor(houseArea / panelArea);
        
        const helpText = document.getElementById('maxPanelsHelp');
        helpText.innerText = `Máximo recomendado para tu techo: ${maxPanels} paneles`;
        
        const input = document.getElementById('cantidadInput');
        input.max = maxPanels;
    }
    
    // Run on load
    document.addEventListener('DOMContentLoaded', updateMaxPanels);
</script>
{% endblock %}