@extends('layouts.admin-simple')

@section('title', 'Approve & Dispatch Material Request')

@section('content')
<div class="container-fluid px-4">
    <!-- Header -->
    <div class="row mb-4">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center">
                <div>
                    <h1 class="h3 mb-2 text-gray-800">
                        <i class="material-icons align-middle mr-2">local_shipping</i>
                        Approve & Dispatch Material Request
                    </h1>
                    <p class="text-muted mb-0">Review, approve and dispatch material request items in one step</p>
                </div>
                <div>
                    <a href="{{ route('warehouse.inventory.material-requests') }}" class="btn btn-secondary">
                        <i class="material-icons mr-1">arrow_back</i>
                        Back to List
                    </a>
                </div>
            </div>
        </div>
    </div>

    <!-- Error Messages -->
    @if($errors->any())
        <div class="alert alert-danger">
            <ul class="mb-0">
                @foreach($errors->all() as $error)
                    <li>{{ $error }}</li>
                @endforeach
            </ul>
        </div>
    @endif

    <!-- Success Message -->
    @if(session('success'))
        <div class="alert alert-success">
            {{ session('success') }}
        </div>
    @endif

    <!-- Request Information Card -->
    <div class="card shadow mb-4">
        <div class="card-header">
            <h6 class="m-0 font-weight-bold text-primary">
                <i class="material-icons align-middle mr-1">assignment</i>
                Request Information
            </h6>
        </div>
        <div class="card-body">
            <div class="row">
                <div class="col-md-3">
                    <strong>Request Number:</strong><br>
                    <span class="text-primary">{{ $materialRequest['request_number'] }}</span>
                </div>
                <div class="col-md-3">
                    <strong>Date:</strong><br>
                    {{ $materialRequest['request_date'] }}
                </div>
                <div class="col-md-3">
                    <strong>Project:</strong><br>
                    {{ $materialRequest['project'] }}
                </div>
                <div class="col-md-3">
                    <strong>Requested By:</strong><br>
                    {{ $materialRequest['requested_by'] }}
                </div>
            </div>
        </div>
    </div>

    <!-- Dispatch Form -->
    <div class="card shadow">
        <div class="card-header">
            <h6 class="m-0 font-weight-bold text-primary">
                <i class="material-icons align-middle mr-1">local_shipping</i>
                Dispatch Details
            </h6>
        </div>
        <div class="card-body">
            <form action="{{ route('warehouse.inventory.material-requests.process-dispatch', $materialRequest['id']) }}" method="POST" id="dispatchForm">
                @csrf

                <!-- Action Type - Always approve for pending requests in new 2-stage workflow -->
                <input type="hidden" name="action" value="approve" id="action_type">

                <!-- Dispatch Information -->
                <div class="row mb-4">
                    <div class="col-12">
                        <h6 class="font-weight-bold text-secondary mb-3">
                            <i class="material-icons align-middle mr-1">info</i>
                            Dispatch Information
                        </h6>
                        <div class="row">
                            <!-- Dispatch Date -->
                            <div class="col-md-4 mb-3">
                                <label for="dispatch_date" class="form-label">Dispatch Date <span class="text-danger">*</span></label>
                                <input type="date"
                                       class="form-control @error('dispatch_date') is-invalid @enderror"
                                       id="dispatch_date"
                                       name="dispatch_date"
                                       value="{{ old('dispatch_date', date('Y-m-d')) }}"
                                       required>
                                @error('dispatch_date')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>

                            <!-- Received By -->
                            <div class="col-md-4 mb-3">
                                @php
                                    $receiverOptions = [['value' => '', 'text' => 'Select Receiver']];
                                    foreach($users as $user) {
                                        $receiverOptions[] = [
                                            'value' => $user->id,
                                            'text' => $user->name
                                        ];
                                    }
                                @endphp
                                <x-warehouse.select2-dropdown
                                    name="received_by"
                                    id="received_by"
                                    label="Received By"
                                    placeholder="Select Receiver"
                                    :options="$receiverOptions"
                                    :selected="old('received_by')"
                                    required="true"
                                    errorField="received_by"
                                />
                            </div>

                            <!-- Dispatch Status -->
                            <div class="col-md-4 mb-3">
                                <x-warehouse.select2-dropdown
                                    name="dispatch_status"
                                    id="dispatch_status"
                                    label="Dispatch Status"
                                    placeholder="Select Status"
                                    :options="[
                                        ['value' => '', 'text' => 'Select Status'],
                                        ['value' => 'partially_dispatched', 'text' => 'Partially Dispatched'],
                                        ['value' => 'fully_dispatched', 'text' => 'Fully Dispatched']
                                    ]"
                                    :selected="old('dispatch_status')"
                                    required="true"
                                    errorField="dispatch_status"
                                />
                            </div>
                        </div>
                    </div>
                </div>

                <hr class="my-4">

                <!-- Items Section -->
                <div class="row">
                    <div class="col-12">
                        <h6 class="font-weight-bold text-secondary mb-3">
                            <i class="material-icons align-middle mr-1">inventory_2</i>
                            Items Dispatch
                        </h6>

                        <!-- Items Table -->
                        <div class="table-responsive">
                            <table class="table table-hover" id="dispatch_items_table">
                                <thead class="thead-light">
                                    <tr>
                                        <th style="width: 100px;">Item Code</th>
                                        <th>Description</th>
                                        <th style="width: 80px;">Unit</th>
                                        <th style="width: 90px;">Available</th>
                                        <th style="width: 90px;">Requested</th>
                                        <th style="width: 90px;">Dispatched</th>
                                        <th style="width: 90px;">Remaining</th>
                                        <th style="width: 100px;">Qty to Issue</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach($materialRequest['items'] as $index => $item)
                                        <tr>
                                            <td>
                                                <span class="font-weight-bold text-primary">{{ $item['item_code'] }}</span>
                                            </td>
                                            <td>
                                                <div class="text-truncate" style="max-width: 200px;" title="{{ $item['description'] }}">
                                                    {{ $item['description'] }}
                                                </div>
                                            </td>
                                            <td class="text-center">
                                                <span class="badge badge-secondary">{{ $item['unit'] }}</span>
                                            </td>
                                            <td class="text-center">
                                                <span class="text-{{ $item['quantity_available'] > 0 ? 'success' : 'danger' }} font-weight-bold">
                                                    {{ $item['quantity_available'] }}
                                                </span>
                                            </td>
                                            <td class="text-center">
                                                <span class="font-weight-bold">{{ $item['quantity_requested'] }}</span>
                                            </td>
                                            <td class="text-center">
                                                <span class="text-info font-weight-bold">
                                                    {{ $item['quantity_released'] }}
                                                </span>
                                            </td>
                                            <td class="text-center">
                                                <span class="text-warning font-weight-bold">
                                                    {{ $item['quantity_remaining'] }}
                                                </span>
                                            </td>
                                            <td>
                                                <input type="hidden" name="items[{{ $index }}][item_id]" value="{{ $item['id'] }}">
                                                <input type="number"
                                                       class="form-control form-control-sm"
                                                       name="items[{{ $index }}][quantity_approved]"
                                                       value="{{ old('items.' . $index . '.quantity_approved', $item['quantity_remaining']) }}"
                                                       min="0"
                                                       max="{{ min($item['quantity_remaining'], $item['quantity_available']) }}"
                                                       style="width: 80px;"
                                                       required>
                                            </td>
                                        </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        </div>
                    </div>
                </div>

                <!-- Form Actions -->
                <hr class="my-4">
                <div class="row">
                    <div class="col-12">
                        <div class="d-flex justify-content-between align-items-center">
                            <div class="text-muted">
                                <i class="material-icons align-middle mr-1">info</i>
                                <strong>Items:</strong> <span id="total_items_display">{{ count($materialRequest['items']) }} items</span>
                            </div>
                            <div>
                                <a href="{{ route('warehouse.inventory.material-requests') }}" class="btn btn-outline-secondary mr-2">
                                    <i class="material-icons mr-1">arrow_back</i>
                                    Cancel
                                </a>
                                <button type="button" class="btn btn-success" onclick="confirmDispatch()">
                                    <i class="material-icons mr-1">check_circle</i>
                                    Approve & Dispatch
                                </button>
                                <button type="button" class="btn btn-warning ml-2" onclick="forceComplete()">
                                    <i class="material-icons mr-1">done_all</i>
                                    Force Complete
                                </button>
                                <button type="button" class="btn btn-danger ml-2" onclick="cancelRequest()">
                                    <i class="material-icons mr-1">cancel</i>
                                    Cancel Request
                                </button>
                            </div>
                        </div>
                    </div>
                </div>
            </form>
        </div>
    </div>

    <!-- Information Card -->
    <div class="row mt-4">
        <div class="col-12">
            <div class="card border-left-info">
                <div class="card-body">
                    <div class="row no-gutters align-items-center">
                        <div class="col mr-2">
                            <div class="text-xs font-weight-bold text-info text-uppercase mb-1">
                                <i class="material-icons align-middle mr-1">info</i>
                                Dispatch Process
                            </div>
                            <div class="text-gray-800">
                                <ul class="mb-0 pl-3">
                                    <li>Review the requested items and remaining quantities to be dispatched</li>
                                    <li><strong>Dispatched:</strong> Previously issued quantity</li>
                                    <li><strong>Remaining:</strong> Quantity still pending dispatch</li>
                                    <li>Adjust "Qty to Issue" based on available stock</li>
                                    <li>Select appropriate dispatch status (partial/full)</li>
                                    <li>Specify who will receive the materials</li>
                                    <li>Inventory levels will be updated automatically upon dispatch</li>
                                </ul>
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="material-icons fa-2x text-gray-300">local_shipping</i>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<!-- SweetAlert2 -->
<script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {

    // Auto-update dispatch status based on quantities
    document.querySelectorAll('input[name*="[quantity_approved]"]').forEach(input => {
        input.addEventListener('change', function() {
            updateDispatchStatus();
        });
    });
});

function updateDispatchStatus() {
    const statusSelect = document.getElementById('dispatch_status');
    const approvedInputs = document.querySelectorAll('input[name*="[quantity_approved]"]');

    let totalRequested = 0;
    let totalApproved = 0;
    let hasPartialApproval = false;

    approvedInputs.forEach((input, index) => {
        const requested = parseInt(input.max) || 0;
        const approved = parseInt(input.value) || 0;

        totalRequested += requested;
        totalApproved += approved;

        if (approved > 0 && approved < requested) {
            hasPartialApproval = true;
        }
    });

    // Auto-select dispatch status based on quantities
    if (totalApproved === 0) {
        statusSelect.value = '';
    } else if (hasPartialApproval || totalApproved < totalRequested) {
        statusSelect.value = 'partially_dispatched';
    } else if (totalApproved === totalRequested) {
        statusSelect.value = 'fully_dispatched';
    }
}

// Confirm dispatch function with SweetAlert
function confirmDispatch() {
    const approvedInputs = document.querySelectorAll('input[name*="[quantity_approved]"]');
    let totalApproved = 0;
    approvedInputs.forEach(input => {
        totalApproved += parseInt(input.value) || 0;
    });

    if (totalApproved === 0) {
        Swal.fire({
            title: 'No Quantities Specified',
            text: 'Please specify at least one item quantity to dispatch.',
            icon: 'warning',
            confirmButtonText: 'OK'
        });
        return;
    }

    Swal.fire({
        title: 'Confirm Dispatch',
        text: 'Are you sure you want to dispatch the specified quantities? This will update inventory levels.',
        icon: 'question',
        showCancelButton: true,
        confirmButtonColor: '#28a745',
        cancelButtonColor: '#6c757d',
        confirmButtonText: 'Yes, Dispatch',
        cancelButtonText: 'Cancel'
    }).then((result) => {
        if (result.isConfirmed) {
            // Set action type and submit form
            document.getElementById('action_type').value = 'approve';
            document.getElementById('dispatchForm').submit();
        }
    });
}

// Force complete function with SweetAlert
function forceComplete() {
    Swal.fire({
        title: 'Force Complete Request?',
        html: 'This will mark the request as <strong>fully completed</strong> with current dispatched quantities.<br><br><span class="text-warning"><i class="fas fa-exclamation-triangle"></i> Any remaining undispatched quantities will be considered no longer needed.</span>',
        icon: 'warning',
        showCancelButton: true,
        confirmButtonColor: '#ffc107',
        cancelButtonColor: '#6c757d',
        confirmButtonText: 'Yes, Force Complete',
        cancelButtonText: 'Cancel'
    }).then((result) => {
        if (result.isConfirmed) {
            // Set all quantities to dispatched amounts and mark as complete
            const approvedInputs = document.querySelectorAll('input[name*="[quantity_approved]"]');
            approvedInputs.forEach(input => {
                input.value = 0; // Set to 0 since we're just marking as complete
            });

            // Set action type to force complete
            document.getElementById('action_type').value = 'force_complete';
            document.getElementById('dispatchForm').submit();
        }
    });
}

// Cancel request function with SweetAlert
function cancelRequest() {
    Swal.fire({
        title: 'Cancel Request?',
        text: 'Are you sure you want to cancel this material request? This action cannot be undone.',
        icon: 'error',
        showCancelButton: true,
        confirmButtonColor: '#dc3545',
        cancelButtonColor: '#6c757d',
        confirmButtonText: 'Yes, Cancel Request',
        cancelButtonText: 'No, Keep Request'
    }).then((result) => {
        if (result.isConfirmed) {
            // Create a form to submit the cancel action
            const form = document.createElement('form');
            form.method = 'POST';
            form.action = document.getElementById('dispatchForm').action;

            // Add CSRF token
            const csrfToken = document.createElement('input');
            csrfToken.type = 'hidden';
            csrfToken.name = '_token';
            csrfToken.value = '{{ csrf_token() }}';
            form.appendChild(csrfToken);

            // Add action input
            const actionInput = document.createElement('input');
            actionInput.type = 'hidden';
            actionInput.name = 'action';
            actionInput.value = 'cancel';
            form.appendChild(actionInput);

            // Submit the form
            document.body.appendChild(form);
            form.submit();
        }
    });
}
</script>
@endpush