@extends('layouts.app')
@section('title', __('lang_v1.bin_locations'))

@php
    $zone_labels = [
        'receiving' => 'Receiving', 'pick' => 'Pick Face', 'bulk' => 'Bulk',
        'quarantine' => 'Quarantine', 'rejected' => 'Rejected', 'expired' => 'Expired',
        'returns' => 'Returns', 'narcotic' => 'Narcotic (Secure)', 'dispatch' => 'Dispatch',
    ];
    $temp_labels = [
        'cold_2_8' => 'Cold 2–8°C', 'cool_8_15' => 'Cool 8–15°C',
        'crt_15_25' => 'CRT 15–25°C', 'ambient' => 'Ambient',
    ];
    $status_colors = [
        'available' => 'bg-green', 'occupied' => 'bg-aqua', 'blocked' => 'bg-gray',
        'quarantine' => 'bg-yellow', 'damaged' => 'bg-red',
    ];
@endphp

@section('content')
    <section class="content-header">
        <h1>@lang('lang_v1.bin_locations') <small>@lang('lang_v1.bin_locations_desc')</small>
            <button type="button" class="btn btn-primary pull-right" data-toggle="modal" data-target="#addLocationModal">
                <i class="fa fa-plus"></i> @lang('lang_v1.add_location')
            </button>
        </h1>
    </section>

    <section class="content">
        {{-- Validation failures MUST be visible here. The app layout renders
             session('status') (via toastr) but never includes the $errors partial,
             so a rejected "Add Storage Location" used to redirect back silently —
             the modal closed, nothing was created, and the operator got no reason. --}}
        @include('layouts.partials.error')

        {{-- Create / update a storage location --}}
        <div class="modal fade" id="addLocationModal" tabindex="-1" role="dialog">
            <div class="modal-dialog" role="document">
                {!! Form::open(['route' => 'supplier.bin.store', 'method' => 'post']) !!}
                <div class="modal-content">
                    <div class="modal-header">
                        <button type="button" class="close" data-dismiss="modal"><span>&times;</span></button>
                        <h4 class="modal-title"><i class="fa fa-plus"></i> @lang('lang_v1.add_location')</h4>
                    </div>
                    <div class="modal-body">
                        <div class="form-group">
                            {!! Form::label('code', __('lang_v1.location_code')) !!}
                            {{-- old() so a rejected submission comes back filled in. --}}
                            {!! Form::text('code', old('code'), ['class' => 'form-control', 'placeholder' => 'e.g. COLD-A1-R3-S2-B04', 'required' => true, 'maxlength' => 50]) !!}
                        </div>
                        <div class="row">
                            <div class="col-xs-6"><div class="form-group">
                                {!! Form::label('location_type', __('lang_v1.location_type')) !!}
                                {!! Form::select('location_type', ['zone'=>'Zone','aisle'=>'Aisle','rack'=>'Rack','shelf'=>'Shelf','bin'=>'Bin'], old('location_type', 'bin'), ['class' => 'form-control']) !!}
                            </div></div>
                            <div class="col-xs-6"><div class="form-group">
                                {!! Form::label('parent_id', __('lang_v1.parent_location')) !!}
                                {{-- data-zone / data-temp drive the inherit-from-parent script
                                     at the bottom of this view. --}}
                                <select name="parent_id" class="form-control">
                                    <option value="">—</option>
                                    @foreach($parent_bins as $pb)
                                        <option value="{{ $pb->id }}" data-zone="{{ $pb->zone }}" data-temp="{{ $pb->temp_class }}">
                                            {{ $pb->code }} ({{ ucfirst($pb->location_type) }})
                                        </option>
                                    @endforeach
                                </select>
                            </div></div>
                        </div>
                        <div class="row">
                            <div class="col-xs-6"><div class="form-group">
                                {!! Form::label('zone', __('lang_v1.zone')) !!}
                                {!! Form::select('zone', collect(\App\WarehouseBin::ZONES)->mapWithKeys(fn($z)=>[$z=>$zone_labels[$z] ?? $z])->toArray(), old('zone', 'pick'), ['class' => 'form-control']) !!}
                            </div></div>
                            <div class="col-xs-6"><div class="form-group">
                                {!! Form::label('temp_class', __('lang_v1.temp_class')) !!}
                                {!! Form::select('temp_class', [''=>'—'] + collect(\App\WarehouseBin::TEMP_CLASSES)->mapWithKeys(fn($t)=>[$t=>$temp_labels[$t] ?? $t])->toArray(), null, ['class' => 'form-control']) !!}
                            </div></div>
                        </div>
                        {{-- Capacity is only meaningful on a BIN: putAway checks it against
                             the bin holding the stock, and zone/aisle/rack/shelf rows never
                             hold any. Hidden for those types and nulled server-side. --}}
                        <div class="form-group" id="bin_capacity_group">
                            {!! Form::label('capacity', __('lang_v1.capacity')) !!}
                            {!! Form::text('capacity', old('capacity'), ['class' => 'form-control', 'placeholder' => 'units']) !!}
                            <span class="help-block">@lang('lang_v1.capacity_bin_only')</span>
                        </div>
                        <div class="checkbox">
                            <label>{!! Form::checkbox('humidity_controlled', 1) !!} @lang('lang_v1.humidity_controlled')</label>
                        </div>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-default" data-dismiss="modal">@lang('messages.cancel')</button>
                        <button type="submit" class="btn btn-primary"><i class="fa fa-save"></i> @lang('messages.save')</button>
                    </div>
                </div>
                {!! Form::close() !!}
            </div>
        </div>

        <div class="row">
            {{-- Put-away: assign un-binned batches to bins --}}
            <div class="col-md-6">
                <div class="box box-solid">
                    <div class="box-header with-border"><h3 class="box-title"><i class="fa fa-dolly"></i> @lang('lang_v1.put_away')
                        <small>@lang('lang_v1.put_away_desc')</small></h3></div>
                    <div class="box-body table-responsive" style="max-height:520px;overflow:auto;">
                        <table class="table table-bordered table-striped">
                            <thead><tr>
                                <th>@lang('business.product')</th>
                                <th>@lang('lang_v1.lot_number')</th>
                                <th class="text-right">@lang('lang_v1.unbinned')</th>
                                <th style="width:45%;">@lang('lang_v1.assign_to_bin')</th>
                            </tr></thead>
                            <tbody>
                                @if($stockable_bins->isEmpty() && $unbinned->isNotEmpty())
                                    {{-- Nothing can be put away until a BIN-level location exists.
                                         Without this the operator sees populated rows, empty
                                         dropdowns and a non-empty location master, with no clue why. --}}
                                    <tr>
                                        <td colspan="4">
                                            <div class="alert alert-warning" style="margin:0;">
                                                <i class="fa fa-exclamation-triangle"></i>
                                                @lang('lang_v1.no_stockable_bins')
                                                <button type="button" class="btn btn-xs btn-primary" data-toggle="modal" data-target="#addLocationModal" style="margin-left:8px;">
                                                    <i class="fa fa-plus"></i> @lang('lang_v1.add_location')
                                                </button>
                                            </div>
                                        </td>
                                    </tr>
                                @endif
                                @forelse($unbinned as $u)
                                    @php
                                        $row_bins = $compatible_bins[$u->purchase_line_id] ?? [];
                                        $row_block = $incompatible_reason[$u->purchase_line_id] ?? null;
                                        $qc_badge = !empty($u->recalled_at) ? ['bg-red', __('lang_v1.batch_recalled')]
                                            : ($u->qc_status === 'quarantine' ? ['bg-yellow', __('lang_v1.batch_qc_quarantine')]
                                            : ($u->qc_status === 'rejected' ? ['bg-red', __('lang_v1.batch_qc_rejected')] : null));
                                    @endphp
                                    <tr>
                                        <td>{{ $u->product_name }}
                                            @if($u->drug_schedule === 'X')<span class="label bg-purple" title="Schedule-X narcotic">X</span>@endif
                                            @if($qc_badge)<span class="label {{ $qc_badge[0] }}">{{ $qc_badge[1] }}</span>@endif
                                            @if($u->storage_condition)<br><small class="text-muted">{{ $u->storage_condition }}</small>@endif
                                        </td>
                                        <td>
                                            {{ $u->lot_number ?: '-' }}
                                            {{-- Full expiry + manufacturer: two deliveries routinely share a
                                                 lot number and are only distinguishable by these. --}}
                                            <br><small>{{ $u->exp_date ? \Carbon\Carbon::parse($u->exp_date)->format('d-m-Y') : '-' }}</small>
                                            @if($u->manufacturer_name)<br><small class="text-muted">{{ $u->manufacturer_name }}</small>@endif
                                        </td>
                                        <td class="text-right"><strong>{{ number_format($u->unbinned_qty, 2) }}</strong></td>
                                        <td>
                                            @if(empty($row_bins))
                                                {{-- Every bin fails the placement rules for this batch, or none
                                                     exists. Say why instead of showing an empty dropdown. --}}
                                                <span class="text-danger"><i class="fa fa-ban"></i>
                                                    @if($row_block)
                                                        {{ __('lang_v1.putaway_blocked_reason', ['reason' => $row_block]) }}
                                                    @else
                                                        @lang('lang_v1.no_compatible_bin')
                                                    @endif
                                                </span>
                                            @else
                                                {!! Form::open(['route' => 'supplier.bin.putaway', 'method' => 'post', 'class' => 'form-inline']) !!}
                                                    <input type="hidden" name="purchase_line_id" value="{{ $u->purchase_line_id }}">
                                                    {{-- Only bins this batch may legally occupy — same rules the
                                                         server enforces in WarehouseBinUtil::putAway. --}}
                                                    {!! Form::select('bin_id', $row_bins, null, ['class' => 'form-control input-sm', 'style' => 'width:45%', 'placeholder' => __('messages.please_select'), 'required' => true]) !!}
                                                    <input type="number" step="0.01" min="0.01" max="{{ $u->unbinned_qty }}" name="qty" value="{{ $u->unbinned_qty }}" class="form-control input-sm" style="width:70px;">
                                                    <button type="submit" class="btn btn-xs btn-success"><i class="fa fa-check"></i></button>
                                                {!! Form::close() !!}
                                            @endif
                                        </td>
                                    </tr>
                                @empty
                                    <tr><td colspan="4" class="text-center text-muted">@lang('lang_v1.all_stock_binned')</td></tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>

            {{-- Bin contents --}}
            <div class="col-md-6">
                <div class="box box-solid">
                    <div class="box-header with-border"><h3 class="box-title"><i class="fa fa-boxes"></i> @lang('lang_v1.bin_contents')</h3></div>
                    <div class="box-body table-responsive" style="max-height:520px;overflow:auto;">
                        <table class="table table-bordered table-striped">
                            <thead><tr>
                                <th>@lang('lang_v1.bin')</th>
                                <th>@lang('business.product')</th>
                                <th>@lang('lang_v1.lot_number')</th>
                                <th class="text-right">@lang('sale.quantity')</th>
                            </tr></thead>
                            <tbody>
                                @forelse($bin_contents as $c)
                                    <tr>
                                        <td><strong>{{ $c->bin_code }}</strong>
                                            <span class="label {{ $status_colors[$c->status] ?? 'bg-gray' }}">{{ $zone_labels[$c->zone] ?? $c->zone }}</span>
                                            @if($c->temp_class)<br><small class="text-blue">{{ $temp_labels[$c->temp_class] ?? $c->temp_class }}</small>@endif
                                        </td>
                                        <td>{{ $c->product_name }}</td>
                                        <td>{{ $c->lot_number ?: '-' }}<br><small>{{ $c->exp_date ? \Carbon\Carbon::parse($c->exp_date)->format('m/Y') : '' }}</small></td>
                                        <td class="text-right">{{ number_format($c->qty, 2) }}</td>
                                    </tr>
                                @empty
                                    <tr><td colspan="4" class="text-center text-muted">@lang('lang_v1.no_records_found')</td></tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
        </div>

        {{-- Location master --}}
        <div class="box box-solid">
            <div class="box-header with-border"><h3 class="box-title"><i class="fa fa-sitemap"></i> @lang('lang_v1.location_master')</h3></div>
            <div class="box-body table-responsive">
                <table class="table table-bordered table-striped">
                    <thead><tr>
                        <th>@lang('lang_v1.location_code')</th>
                        <th>@lang('lang_v1.location_type')</th>
                        <th>@lang('lang_v1.zone')</th>
                        <th>@lang('lang_v1.temp_class')</th>
                        <th class="text-right">@lang('lang_v1.capacity')</th>
                        <th>@lang('lang_v1.status')</th>
                        <th></th>
                    </tr></thead>
                    <tbody>
                        @forelse($bins as $b)
                            <tr>
                                <td><strong>{{ $b->code }}</strong>@if($b->parent_id)<br><small class="text-muted">↳ {{ optional($bins->firstWhere('id',$b->parent_id))->code }}</small>@endif</td>
                                <td><span class="label bg-navy">{{ ucfirst($b->location_type) }}</span></td>
                                <td>{{ $zone_labels[$b->zone] ?? $b->zone }}</td>
                                <td>{{ $b->temp_class ? ($temp_labels[$b->temp_class] ?? $b->temp_class) : '-' }}@if($b->humidity_controlled)<br><small class="text-blue">RH ctrl</small>@endif</td>
                                <td class="text-right">{{ $b->capacity ? number_format($b->capacity, 0) : '-' }}</td>
                                <td><span class="label {{ $status_colors[$b->status] ?? 'bg-gray' }}">{{ ucfirst($b->status) }}</span></td>
                                <td style="width:1%;white-space:nowrap;">
                                    {!! Form::open(['route' => ['supplier.bin.status', $b->id], 'method' => 'post', 'class' => 'form-inline']) !!}
                                        {!! Form::select('status', collect(\App\WarehouseBin::STATUSES)->mapWithKeys(fn($s)=>[$s=>ucfirst($s)])->toArray(), $b->status, ['class' => 'form-control input-sm', 'onchange' => 'this.form.submit()']) !!}
                                    {!! Form::close() !!}
                                </td>
                            </tr>
                        @empty
                            <tr><td colspan="7" class="text-center text-muted">@lang('lang_v1.no_records_found')</td></tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>
    </section>
@endsection

{{-- MUST be @section('javascript'): the layout yields it after
     layouts.partials.javascripts, where jQuery is loaded. Inside
     @section('content') this runs before jQuery exists and dies on
     `$ is not defined`, leaving the modal wiring dead. --}}
@section('javascript')
    <script type="text/javascript">
        $(function () {
            // Capacity only applies to a Bin (see the field's help text). Hide it for
            // structural levels so nobody sets a figure that is silently ignored.
            function toggleCapacity() {
                var isBin = $('#addLocationModal select[name="location_type"]').val() === 'bin';
                $('#bin_capacity_group').toggle(isBin);
                if (!isBin) { $('#addLocationModal input[name="capacity"]').val(''); }
            }

            // Default a child's zone / temperature class from its parent, so a bin
            // created under a cold zone inherits cold-chain instead of silently
            // defaulting to something else. Only fills BLANK-equivalent values —
            // an explicit choice by the operator is never overwritten.
            function inheritFromParent() {
                var $opt = $('#addLocationModal select[name="parent_id"] option:selected');
                var zone = $opt.data('zone');
                var temp = $opt.data('temp');
                if (!zone) { return; }
                if (!$('#addLocationModal').data('zone-touched')) {
                    $('#addLocationModal select[name="zone"]').val(zone);
                }
                if (temp && !$('#addLocationModal').data('temp-touched')) {
                    $('#addLocationModal select[name="temp_class"]').val(temp);
                }
            }

            $(document).on('change', '#addLocationModal select[name="location_type"]', toggleCapacity);
            $(document).on('change', '#addLocationModal select[name="parent_id"]', inheritFromParent);
            $(document).on('change', '#addLocationModal select[name="zone"]', function () {
                $('#addLocationModal').data('zone-touched', true);
            });
            $(document).on('change', '#addLocationModal select[name="temp_class"]', function () {
                $('#addLocationModal').data('temp-touched', true);
            });
            $(document).on('shown.bs.modal', '#addLocationModal', function () {
                $(this).removeData('zone-touched').removeData('temp-touched');
                toggleCapacity();
            });

            toggleCapacity();

            @if($errors->any())
                // Re-open the form on a rejected submission, with the operator's
                // values restored by old(), so the errors above are seen next to
                // the inputs that caused them instead of a silently closed modal.
                $('#addLocationModal').modal('show');
            @endif
        });
    </script>
@endsection