@extends('layouts.location')

@section('title', 'Inventory Dashboard')
@section('page-title', 'Inventory Dashboard')

@section('content')
<div class="no-select">
    <div class="row">
        <div class="col-lg-12 mb-4">
            <div class="card border-0 shadow-sm">
                <div class="card-header bg-transparent d-flex justify-content-between align-items-center">
                    <div>
                        <h5 class="mb-0">ASN Uploads (Inventory)</h5>
                        <small class="text-muted">Month: {{ $selectedMonth ?? ($asnSummary['date'] ?? date('Y-m')) }}</small>
                    </div>
                    <form method="GET" action="{{ route('location.dashboard') }}" class="d-flex align-items-center gap-2">
                        <label for="monthSelect" class="me-2 mb-0 small text-muted">Select Month</label>
                        <select id="monthSelect" name="month" class="form-select form-select-sm" onchange="this.form.submit()">
                            @foreach(($months ?? []) as $m)
                                <option value="{{ $m }}" {{ ($selectedMonth ?? '') === $m ? 'selected' : '' }}>{{ $m }}</option>
                            @endforeach
                        </select>
                        <noscript>
                            <button type="submit" class="btn btn-sm btn-primary">Go</button>
                        </noscript>
                    </form>
                </div>
                <div class="card-body">
                    @php
                        $labels = array_keys($asnSummary['by_status'] ?? []);
                        $pcs = [];
                        $inward = [];
                        $transfer = [];
                        $access = [];
                        foreach ($labels as $st) {
                            $row = $asnSummary['by_status'][$st] ?? ['pcs'=>0,'inward_qty'=>0,'transfer_qty'=>0,'access_qty'=>0];
                            $pcs[] = (int)($row['pcs'] ?? 0);
                            $inward[] = (int)($row['inward_qty'] ?? 0);
                            $transfer[] = (int)($row['transfer_qty'] ?? 0);
                            $access[] = (int)($row['access_qty'] ?? 0);
                        }
                    @endphp
                    <div class="row">
                        <div class="col-md-8">
                            <canvas id="asnChart" height="140"></canvas>
                        </div>
                        <div class="col-md-4">
                            <h6 class="mb-2">Totals</h6>
                            <ul class="list-group list-group-flush small">
                                <li class="list-group-item d-flex justify-content-between align-items-center">
                                    PCS
                                    <span class="badge bg-secondary">{{ $asnSummary['totals']['pcs'] ?? 0 }}</span>
                                </li>
                                <li class="list-group-item d-flex justify-content-between align-items-center">
                                    Inward Qty
                                    <span class="badge bg-secondary">{{ $asnSummary['totals']['inward_qty'] ?? 0 }}</span>
                                </li>
                                <li class="list-group-item d-flex justify-content-between align-items-center">
                                    Transfer Qty
                                    <span class="badge bg-secondary">{{ $asnSummary['totals']['transfer_qty'] ?? 0 }}</span>
                                </li>
                                <li class="list-group-item d-flex justify-content-between align-items-center">
                                    Access Qty
                                    <span class="badge bg-secondary">{{ $asnSummary['totals']['access_qty'] ?? 0 }}</span>
                                </li>
                            </ul>
                            <div class="mt-3">
                                <div class="small text-muted">Statuses come from the `status` column of `asn_uploads` (e.g., inward, pending, approved). Empty values are grouped under "unknown".</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class="card border-0 shadow-sm mt-3">
                <div class="card-header bg-transparent d-flex justify-content-between align-items-center">
                    <div>
                        <h5 class="mb-0">Monthwise SO Uploads (Inventory)</h5>
                        <small class="text-muted">Month: {{ $selectedMonth ?? date('Y-m') }}</small>
                    </div>
                </div>
                <div class="card-body">
                    <div class="row">
                        <div class="col-md-12">
                            <canvas id="soChart" height="160"></canvas>
                        </div>
                    </div>
                    <div class="row mt-3">
                        <div class="col-md-12">
                            <div class="small text-muted">
                                Shows daily totals in the selected month from `sales_order_items` for this location:
                                distinct SO count, item rows count, and total quantity.
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<!-- Chart.js CDN -->
<script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.1/dist/chart.umd.min.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function () {
    try {
        const ctx = document.getElementById('asnChart');
        if (ctx && window.Chart) {
            const labels = @json($labels ?? []);
            const dataPCS = @json($pcs ?? []);
            const dataInward = @json($inward ?? []);
            const dataTransfer = @json($transfer ?? []);
            const dataAccess = @json($access ?? []);

            const finalLabels = Array.isArray(labels) && labels.length ? labels : [];
            const datasets = [];
            if ((dataPCS || []).length) datasets.push({ label: 'PCS', data: dataPCS, backgroundColor: 'rgba(43,37,108,0.6)' });
            if ((dataInward || []).length) datasets.push({ label: 'Inward Qty', data: dataInward, backgroundColor: 'rgba(25,135,84,0.6)' });
            if ((dataTransfer || []).length) datasets.push({ label: 'Transfer Qty', data: dataTransfer, backgroundColor: 'rgba(255,193,7,0.6)' });
            if ((dataAccess || []).length) datasets.push({ label: 'Access Qty', data: dataAccess, backgroundColor: 'rgba(13,110,253,0.6)' });

            if (finalLabels.length && datasets.length) {
                new Chart(ctx, {
                    type: 'bar',
                    data: { labels: finalLabels, datasets },
                    options: {
                        responsive: true,
                        maintainAspectRatio: false,
                        scales: {
                            x: { stacked: true },
                            y: { beginAtZero: true, stacked: true }
                        },
                        plugins: {
                            legend: { position: 'bottom' },
                            tooltip: { mode: 'index', intersect: false }
                        }
                    }
                });
            } else if (ctx && ctx.getContext) {
                const g = ctx.getContext('2d');
                g.font = '14px sans-serif';
                g.fillStyle = '#6c757d';
                g.fillText('No ASN uploads for selected month.', 10, 20);
            }
        }
    } catch (e) { /* no-op */ }

    try {
        const soCtx = document.getElementById('soChart');
        if (soCtx && window.Chart) {
            const soLabels = @json($soChart['labels'] ?? []);
            const soOrderCounts = @json($soChart['order_counts'] ?? []);
            const soItemCounts = @json($soChart['item_counts'] ?? []);
            const soQtySums = @json($soChart['qty_sums'] ?? []);

            if ((soLabels || []).length) {
                new Chart(soCtx, {
                    type: 'bar',
                    data: {
                        labels: soLabels,
                        datasets: [
                            { label: 'Distinct SOs', data: soOrderCounts, backgroundColor: 'rgba(13,110,253,0.6)' },
                            { label: 'Item Rows', data: soItemCounts, backgroundColor: 'rgba(25,135,84,0.6)' },
                            { label: 'Total Qty', data: soQtySums, backgroundColor: 'rgba(255,193,7,0.6)' }
                        ]
                    },
                    options: {
                        responsive: true,
                        maintainAspectRatio: false,
                        scales: {
                            x: { stacked: false },
                            y: { beginAtZero: true }
                        },
                        plugins: {
                            legend: { position: 'bottom' },
                            tooltip: { mode: 'index', intersect: false }
                        }
                    }
                });
            } else if (soCtx && soCtx.getContext) {
                const g2 = soCtx.getContext('2d');
                g2.font = '14px sans-serif';
                g2.fillStyle = '#6c757d';
                g2.fillText('No Sales Orders found for selected month.', 10, 20);
            }
        }
    } catch (e) { /* no-op */ }
});
</script>
@endpush