{% extends "base.html" %}

{% block content %}

<div class="container-fluid px-2 px-md-4">

    <h4 class="mb-3 text-center text-md-start">Subcontractor Dashboard </h4>

    <div class="row g-3 mb-4">
        <div class="col-12 col-md-4">
            <div class="card text-white bg-primary shadow h-100">
                <div class="card-body text-center text-md-start">
                    <h6>Trenching Units</h6>
                    <h3 class="fw-bold" id="card-trench">0</h3>
                </div>
            </div>
        </div>
        <div class="col-12 col-md-4">
            <div class="card text-white bg-success shadow h-100">
                <div class="card-body text-center text-md-start">
                    <h6>Manhole Units</h6>
                    <h3 class="fw-bold" id="card-manhole">0</h3>
                </div>
            </div>
        </div>
        <div class="col-12 col-md-4">
            <div class="card text-dark bg-warning shadow h-100">
                <div class="card-body text-center text-md-start">
                    <h6>Laying Units</h6>
                    <h3 class="fw-bold" id="card-laying">0</h3>
                </div>
            </div>
        </div>
    </div>

    <div class="row g-3">
        <div class="col-12 col-md-6">
            <div class="card shadow-sm h-100">
                <div class="card-header bg-dark text-white">Live Category Bar Chart</div>
                <div class="card-body">
                    <canvas id="liveBarChart" style="max-height:300px;"></canvas>
                </div>
            </div>
        </div>

        <div class="col-12 col-md-6">
            <div class="card shadow-sm h-100">
                <div class="card-header bg-dark text-white">Location Distribution Pie Chart</div>
                <div class="card-body">
                    <canvas id="livePieChart" style="max-height:300px;"></canvas>
                </div>
            </div>
        </div>
    </div>

</div>


<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>

<script>
    // 2. Initialize the Bar Chart
    const barCtx = document.getElementById('liveBarChart').getContext('2d');
    let liveBarChart = new Chart(barCtx, {
        type: 'bar',
        data: {
            labels: ['Trenching', 'Manholes', 'Laying'],
            datasets: [{
                label: 'Units Completed',
                data: [0, 0, 0],
                backgroundColor: ['#0d6efd', '#198754', '#ffc107']
            }]
        },
        options: { responsive: true, maintainAspectRatio: false }
    });

    // 3. Initialize the Pie Chart
    const pieCtx = document.getElementById('livePieChart').getContext('2d');
    let livePieChart = new Chart(pieCtx, {
        type: 'pie',
        data: {
            labels: [], // Will be filled from SQL
            datasets: [{
                data: [],
                backgroundColor: ['#0d6efd', '#198754', '#ffc107', '#6f42c1', '#fd7e14']
            }]
        },
        options: { responsive: true, maintainAspectRatio: false }
    });

    // 4. Function to Fetch Live Data from your Python API
    function fetchLiveData() {
        fetch('/dashboard/api/live-stats') // This matches the route we created in the "Kitchen"
            .then(response => response.json())
            .then(data => {
                // Update the Summary Cards
                document.getElementById('card-trench').innerText = data.summary.trench;
                document.getElementById('card-manhole').innerText = data.summary.manhole;
                document.getElementById('card-laying').innerText = data.summary.laying;

                // Update Bar Chart
                liveBarChart.data.datasets[0].data = [
                    data.summary.trench,
                    data.summary.manhole,
                    data.summary.laying
                ];
                liveBarChart.update();

                // Update Pie Chart (Location stats)
                livePieChart.data.labels = Object.keys(data.locations);
                livePieChart.data.datasets[0].data = Object.values(data.locations);
                livePieChart.update();
            })
            .catch(err => console.error("Error fetching live data:", err));
    }

    // 5. Check for updates every 10 seconds (Real-time effect)
    setInterval(fetchLiveData, 10000);
    fetchLiveData(); // Load immediately on page open
</script>

{% endblock %}