{% extends 'base.html' %}
{% block content %}

<div class="main-content flex-grow-1 container-fluid mt-4 mb-3">
    <div class="d-flex justify-content-between align-items-center mb-5 pb-3 border-bottom">
        <h2 class="h3 fw-bold  mb-0">Inventory Dashboard <i class="fas fa-warehouse text-primary ms-2"></i></h2>
        <div class="dropdown">
            <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false">
                Last 30 Days
            </button>
            <ul class="dropdown-menu dropdown-menu-end shadow">
                <li><a class="dropdown-item" href="#">Today</a></li>
                <li><a class="dropdown-item" href="#">Last 7 Days</a></li>
                <li><a class="dropdown-item" href="#">Last 90 Days</a></li>
            </ul>
        </div>
    </div>

    <div class="row g-4 mb-5">
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 shadow-sm border-0">
                <div class="card-body d-flex flex-column justify-content-between p-4">
                    <div>
                        <p class="text-uppercase text-muted fw-bold small mb-1">Total Cars in Inventory</p>
                        <h4 class="fw-bolder text-primary mb-3">{{ total_cars_in_inventory }}</h4>
                    </div>
                    <span class="badge bg-success-subtle text-success fw-bold p-2 rounded-pill d-inline-flex align-self-start">
                        +5 units from last month
                    </span>
                </div>
            </div>
        </div>
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 shadow-sm border-0">
                <div class="card-body d-flex flex-column justify-content-between p-4">
                    <div>
                        <p class="text-uppercase text-muted fw-bold small mb-1">New Cars in Inventory</p>
                        <h4 class="fw-bolder text-success mb-3">{{ new_cars_in_inventory }}</h4>
                    </div>
                    <span class="badge bg-success-subtle text-success fw-bold p-2 rounded-pill d-inline-flex align-self-start">
                        +5 units from last month
                    </span>
                </div>
            </div>
        </div>
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 shadow-sm border-0">
                <div class="card-body d-flex flex-column justify-content-between p-4">
                    <div>
                        <p class="text-uppercase text-muted fw-bold small mb-1">Used Cars in Inventory</p>
                        <h4 class="fw-bolder text-info mb-3">{{ old_cars_in_inventory }}</h4>
                    </div>
                    <span class="badge bg-success-subtle text-success fw-bold p-2 rounded-pill d-inline-flex align-self-start">
                        +5 units from last month
                    </span>
                </div>
            </div>
        </div>
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 shadow-sm border-0">
                <div class="card-body d-flex flex-column justify-content-between p-4">
                    <div>
                        <p class="text-uppercase text-muted fw-bold small mb-1">Inventory Value</p>
                        <h4 class="fw-bolder text-warning mb-3">$5.8M</h4>
                    </div>
                    <span class="badge bg-danger-subtle text-danger fw-bold p-2 rounded-pill d-inline-flex align-self-start">
                        -2% from last month
                    </span>
                </div>
            </div>
        </div>
    </div>

    <div class="row g-4 mb-5">
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 p-4 shadow-sm border-0">
                <p class="text-warning fw-bold mb-1">New Car Value</p>
                <h4 class="fw-bolder mb-0">$3.2M</h4>
                <p class="text-muted small">Total new cars value</p>
            </div>
        </div>
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 p-4 shadow-sm border-0">
                <p class="text-info fw-bold mb-1">Used Car Value</p>
                <h4 class="fw-bolder mb-0">$2.6M</h4>
                <p class="text-muted small">Total used cars value</p>
            </div>
        </div>
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 p-4 shadow-sm border-0">
                <p class="text-danger fw-bold mb-1">Average Time on Lot</p>
                <h4 class="fw-bolder mb-0">10 days</h4>
                <p class="text-muted small">Average for all vehicles</p>
            </div>
        </div>
        <div class="col-sm-6 col-lg-3">
            <div class="card h-100 p-4 shadow-sm border-0">
                <p class="text-danger fw-bold mb-1">Aging Inventory</p>
                <h4 class="fw-bolder mb-0">12 cars</h4>
                <span class="badge bg-success-subtle text-success fw-bold p-2 rounded-pill d-inline-flex align-self-start">
                    -4 cars from last month
                </span>
            </div>
        </div>
    </div>

    <!--charts-->
    <div class="row g-4">
        <div class="col-lg-6">
            <div class="card h-100 shadow-sm border-0">
                <div class="card-header bg-white border-bottom-0">
                    <h5 class="fw-bold mb-0 text-dark">Inventory by Make</h5>
                </div>
                <div class="card-body d-flex align-items-center justify-content-center" style="height: 400px;">
                    <canvas id="inventoryByBrandChart"></canvas>
                </div>
            </div>
        </div>

        <div class="col-lg-6">
            <div class="card h-100 shadow-sm border-0">
                <div class="card-header bg-white border-bottom-0">
                    <h5 class="fw-bold mb-0 text-dark">Car Models by Make in Inventory</h5>
                </div>
                <div class="row justify-content-center">
                   <div class="col-md-6 mb-4 mt-3">
                        <label for="carMakeSelect" class="form-label fs-8 mb-2">Select a Car Make:</label>
                           <select id="carMakeSelect" class="form-select">
                          <option value="" disabled selected>-- Choose a make --</option>
                         </select>
                   </div>
               </div>
                <div class="card-body d-flex align-items-center justify-content-center" style="height: 400px;">
                    <canvas id="inventoryChart"></canvas>
                </div>
            </div>
        </div>

    </div>


</div>

<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
{% endblock content %}

{% block customJS %}
<script>
    // Define a custom color palette that matches the Phoenix template
    const primaryColor = '#7249b6'; // A vibrant purple
    const secondaryColor = '#8193a6'; // A muted gray/blue
    const successColor = '#00d074'; // A bright green
    const infoColor = '#0085ff'; // A medium blue
    const warningColor = '#ffc83b'; // A yellow
    const dangerColor = '#e63757'; // A deep red

    const ctx4 = document.getElementById('inventoryByBrandChart').getContext('2d');

    // Chart.js configuration for the Pie Chart
    new Chart(ctx4, {
        type: 'pie',
        data: {
            labels: ['Toyota', 'Ford', 'Honda', 'BMW', 'Other'],
            datasets: [{
                label: 'Car Count by Make',
                data: [45, 30, 25, 15, 10], // Sample data for car counts
                backgroundColor: [
                    primaryColor,
                    successColor,
                    warningColor,
                    infoColor,
                    secondaryColor
                ],
                hoverOffset: 15,
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: {
                legend: {
                    position: 'right', // Places the legend on the right side
                    labels: {
                        color: secondaryColor, // Use a muted color for a subtle look
                        font: {
                            size: 14
                        }
                    }
                },
                tooltip: {
                    backgroundColor: 'rgba(33, 37, 41, 0.9)', // Bootstrap dark
                    titleColor: '#fff',
                    bodyColor: '#fff',
                    callbacks: {
                        label: function(context) {
                            const label = context.label || '';
                            const value = context.parsed || 0;
                            const total = context.dataset.data.reduce((a, b) => a + b, 0);
                            const percentage = ((value / total) * 100).toFixed(2);
                            return `${label}: ${value} cars (${percentage}%)`;
                        }
                    }
                }
            }
        }
    });





   //chart for number of cars of each model in the inventory



     // Sample data representing your inventory
        const inventoryData = [
            { make: 'Ford', model: 'Mustang', count: 5 },
            { make: 'Ford', model: 'F-150', count: 12 },
            { make: 'Ford', model: 'Explorer', count: 8 },
            { make: 'Toyota', model: 'Camry', count: 10 },
            { make: 'Toyota', model: 'Corolla', count: 15 },
            { make: 'Toyota', model: 'RAV4', count: 7 },
            { make: 'BMW', model: 'X5', count: 4 },
            { make: 'BMW', model: '3 Series', count: 6 },
            { make: 'BMW', model: 'i8', count: 2 },
        ];

        // Get the unique list of car makes for the dropdown
        const carMakes = [...new Set(inventoryData.map(item => item.make))];

        const selectElement = document.getElementById('carMakeSelect');
        const canvasElement = document.getElementById('inventoryChart');
        let chartInstance = null; // Stores the current chart instance

        // Populate the dropdown menu
        carMakes.forEach(make => {
            const option = document.createElement('option');
            option.value = make;
            option.textContent = make;
            selectElement.appendChild(option);
        });

        // Function to create or update the chart
        function renderChart(data, type = 'bar') {
            // Destroy the old chart instance if it exists
            if (chartInstance) {
                chartInstance.destroy();
            }

            const chartLabels = data.map(item => item.model);
            const chartValues = data.map(item => item.count);
            
            // Generate random colors for the chart segments
            const backgroundColor = chartLabels.map(() => `rgba(${Math.floor(Math.random() * 255)}, ${Math.floor(Math.random() * 255)}, ${Math.floor(Math.random() * 255)}, 0.6)`);
            const borderColor = backgroundColor.map(color => color.replace('0.6', '1'));

            // Create the new chart
            chartInstance = new Chart(canvasElement, {
                type: type, // Can be 'bar' or 'pie'
                data: {
                    labels: chartLabels,
                    datasets: [{
                        label: 'Number of Cars',
                        data: chartValues,
                        backgroundColor: backgroundColor,
                        borderColor: borderColor,
                        borderWidth: 1
                    }]
                },
                options: {
                    responsive: true,
                    scales: {
                        y: {
                            beginAtZero: true
                        }
                    },
                    plugins: {
                        legend: {
                            display: true
                        }
                    }
                }
            });
        }

        // Event listener for the dropdown menu
        selectElement.addEventListener('change', (event) => {
            const selectedMake = event.target.value;
            if (selectedMake) {
                const filteredData = inventoryData.filter(item => item.make === selectedMake);
                // The second parameter can be 'pie' to switch chart types
                renderChart(filteredData, 'bar'); // Use 'bar' for a bar chart
            }
        });



</script>
{% endblock %}