{% extends "layout.html" %}

{% block title %}OptiWarm - {% if is_new %}New{% else %}Edit{% endif %} Fuel Cost{% endblock %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-4">
    <h1>
        <i class="fas fa-dollar-sign mr-2"></i>{% if is_new %}New{% else %}Edit{% endif %} Fuel Cost
    </h1>
    <div class="btn-group">
        <a href="{{ url_for('fuelcosts.fuel_costs') }}" class="btn btn-secondary">
            <i class="fas fa-arrow-left mr-2"></i>Back to Fuel Costs
        </a>
    </div>
</div>

<div class="card">
    <div class="card-body">
        <form method="post">
            {{ form.csrf_token }}
            
            <div class="form-row">
                <div class="form-group col-md-4">
                    <label for="fueltypeid">Fuel Type</label>
                    {{ form.fueltypeid(class="form-control", id="fueltypeid") }}
                    {% if form.fueltypeid.errors %}
                        <div class="text-danger">
                            {% for error in form.fueltypeid.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                    <small class="form-text text-muted">{{ form.fueltypeid.description }}</small>
                </div>
                
                <div class="form-group col-md-4">
                    <label for="unit">Unit Amount <span id="unit-label-type" class="text-muted"></span></label>
                    <div class="input-group">
                        {{ form.unit(class="form-control", placeholder="Amount of fuel units", id="unit") }}
                        <div class="input-group-append">
                            <span class="input-group-text" id="unit-addon"></span>
                        </div>
                    </div>
                    {% if form.unit.errors %}
                        <div class="text-danger">
                            {% for error in form.unit.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                    <small class="form-text text-muted">{{ form.unit.description }}</small>
                </div>
                
                <div class="form-group col-md-4">
                    <label for="price">Total Price</label>
                    {{ form.price(class="form-control", placeholder="Enter price for the amount", id="price") }}
                    {% if form.price.errors %}
                        <div class="text-danger">
                            {% for error in form.price.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                    <small class="form-text text-muted">{{ form.price.description }}</small>
                </div>
            </div>
            
            <div class="form-row">
                <div class="form-group col-md-6">
                    <label for="from_date">From Date (Optional)</label>
                    {{ form.from_date(class="form-control", placeholder="YYYY-MM-DD HH:MM") }}
                    {% if form.from_date.errors %}
                        <div class="text-danger">
                            {% for error in form.from_date.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                    <small class="form-text text-muted">{{ form.from_date.description }}</small>
                </div>
                
                <div class="form-group col-md-6">
                    <label for="to_date">To Date (Optional)</label>
                    {{ form.to_date(class="form-control", placeholder="YYYY-MM-DD HH:MM") }}
                    {% if form.to_date.errors %}
                        <div class="text-danger">
                            {% for error in form.to_date.errors %}
                                {{ error }}
                            {% endfor %}
                        </div>
                    {% endif %}
                    <small class="form-text text-muted">{{ form.to_date.description }}</small>
                </div>
            </div>
            
            <div class="form-group">
                {{ form.submit(class="btn btn-primary") }}
                <a href="{{ url_for('fuelcosts.fuel_costs') }}" class="btn btn-secondary">Cancel</a>
            </div>
        </form>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
    // Format hint for datetime fields
    $(document).ready(function() {
        $('#from_date, #to_date').attr('placeholder', 'YYYY-MM-DD HH:MM');
        
        // Map of unit types
        var unitTypes = {
            1: "L",
            2: "M^3",
            3: "KG",
            4: "TONS",
            5: "KW",
            6: "MW",
            7: "GW"
        };
        
        // Update unit type label when fuel type changes
        function updateUnitType() {
            var fuelTypeId = $('#fueltypeid').val();
            if (fuelTypeId) {
                $.getJSON("{{ url_for('fueltypes.api_fuel_type', id=0) }}".replace('0', fuelTypeId), function(data) {
                    // Update the unit type in the label and input addon
                    var unitType = unitTypes[data.unittype] || '';
                    $('#unit-label-type').text(unitType ? '(' + unitType + ')' : '');
                    $('#unit-addon').text(unitType || '');
                    $('#unit').attr('placeholder', 'Amount of ' + (unitType || 'fuel units'));
                }).fail(function() {
                    $('#unit-label-type').text('');
                    $('#unit-addon').text('');
                    $('#unit').attr('placeholder', 'Amount of fuel units');
                });
            } else {
                $('#unit-label-type').text('');
                $('#unit-addon').text('');
                $('#unit').attr('placeholder', 'Amount of fuel units');
            }
        }
        
        // Initial update
        updateUnitType();
        
        // Update when fuel type changes
        $('#fueltypeid').change(updateUnitType);
    });
</script>
{% endblock %}